UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549
 
FORM 10-Q
 
(Mark One)
x	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934	
For the quarterly period ended June 30, 2015
OR
¨	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934	
For the transition period from       to       
Commission File Number: 001-36456
 
ZENDESK, INC.
(Exact Name of Registrant as Specified in its Charter)

Delaware	 	26-4411091	
(State or other jurisdiction
of incorporation or organization)	 	(I.R.S. Employer
Identification No.)	
1019 Market Street
San Francisco, California 94103
(Address of principal executive offices)
415.418.7506
(Registrant’s Telephone number, including area code)
 
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x     No   ¨
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes   x     No   ¨
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.
 
Large accelerated filer	 	¨	  	Accelerated filer	 	¨	
 
Non-accelerated filer	 	x   (do not check if a smaller reporting company)	  	Smaller reporting company	 	¨	
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes   ¨     No   x
As of July 31, 2015, there were 87,990,742 shares of the registrant’s common stock outstanding.

 

 

ZENDESK, INC.
TABLE OF CONTENTS
 
PART I — FINANCIAL INFORMATION
 
Item 1	Financial Statements (unaudited):	4	
 	 
Condensed Consolidated Balance Sheets as of June 30, 2015 and December 31, 2014 	4	
 	 
Condensed Consolidated Statements of Operations for the Three and Six Months Ended June 30, 2015 and 2014	5	
 	 
Condensed Consolidated Statements of Comprehensive Loss for the Three and Six Months Ended June 30, 2015 and 2014	6	
 	 
Condensed Consolidated Statements of Cash Flows for the Six Months Ended June 30, 2015 and 2014	7	
 	 
Notes to Condensed Consolidated Financial Statements	8	
 
Item 2	 
Management’s Discussion and Analysis of Financial Condition and Results of Operations	17	
 
Item 3	 
Quantitative and Qualitative Disclosures About Market Risk	27	
 
Item 4	 
Controls and Procedures	28	
 
PART II — OTHER INFORMATION  

Item 1	Legal Proceedings	28	
 
Item 1A	Risk Factors	28	
 
Item 2	Unregistered Sales of Equity Securities and Use of Proceeds	51	
 
Item 6	Exhibits	51	
 
SIGNATURES	51	

 
2

SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS
This Quarterly Report on Form 10-Q contains forward-looking statements within the meaning of the federal securities laws, which statements involve substantial risks and uncertainties. Forward-looking statements generally relate to future events or our future financial or operating performance. In some cases, you can identify forward-looking statements because they contain words such as “may,” “will,” “should,” “might,” “expects,” “plans,” “anticipates,” “could,” “intends,” “target,” “projects,” “contemplates,” “believes,” “estimates,” “predicts,” “potential,” or “continue” or the negative of these words or other similar terms or expressions that concern our expectations, strategy, plans, or intentions. Forward-looking statements contained in this Quarterly Report on Form 10-Q include, but are not limited to, statements about:
●	our future financial performance, including our revenue, cost of revenue, gross profit, operating expenses, ability to generate positive cash flow, ability to improve our gross margin, and ability to achieve and maintain profitability;	
●	the sufficiency of our cash and cash equivalents, and marketable securities to meet our liquidity needs;	
●	our ability to attract and retain customers to use our customer service platform and live chat software, and to optimize the pricing for our customer service platform and live chat software;	
●	the evolution of technology affecting our platform, services, and markets;	
●	our ability to innovate and provide a superior customer experience;	
●	our ability to successfully expand in our existing markets and into new markets;	
●	the attraction and retention of qualified employees and key personnel;	
●	our ability to effectively manage our growth and future expenses;	
●	our ability to successfully offer our live chat software as a standalone service or further integrate it with our customer service platform;	
●	our ability to maintain, protect, and enhance our intellectual property;	
●	our ability to comply with modified or new laws and regulations applying to our business, including privacy and data security regulations;	
●	worldwide economic conditions and their impact on information technology spending;	
●	our ability to securely maintain customer data; and	
●	our ability to maintain and enhance our brand.	
We caution you that the foregoing list does not contain all of the forward-looking statements made in this Quarterly Report on Form 10-Q.
You should not rely upon forward-looking statements as predictions of future events. We have based the forward-looking statements contained in this Quarterly Report on Form 10-Q primarily on our current expectations and projections about future events and trends that we believe may affect our business, financial condition, operating results, and prospects. The outcome of the events described in these forward-looking statements is subject to risks, uncertainties, and other factors described in the section titled “Risk Factors” and elsewhere in this Quarterly Report on Form 10-Q. Moreover, we operate in a very competitive and rapidly changing environment. New risks and uncertainties emerge from time to time, and it is not possible for us to predict all risks and uncertainties that could have an impact on the forward-looking statements contained in this Quarterly Report on Form 10-Q. We cannot assure you that the results, events, and circumstances reflected in the forward-looking statements will be achieved or occur, and actual results, events, or circumstances could differ materially from those described in the forward-looking statements.
The forward-looking statements made in this Quarterly Report on Form 10-Q relate only to events as of the date on which the statements are made. We undertake no obligation to update any forward-looking statements made in this Quarterly Report on Form 10-Q to reflect events or circumstances after the date of this Quarterly Report on Form 10-Q or to reflect new information or the occurrence of unanticipated events, except as required by law. We may not actually achieve the plans, intentions, or expectations disclosed in our forward-looking statements and you should not place undue reliance on our forward-looking statements. Our forward-looking statements do not reflect the potential impact of any future acquisitions, mergers, dispositions, joint ventures, or investments we may make.

 
3

PART I — FINANCIAL INFORMATION
 Item 1. Financial Statements
 ZENDESK, INC.
 CONDENSED CONSOLIDATED BALANCE SHEETS
(In thousands, except par value and shares)
 
 	 	June 30,	 	 	December 31,	 	
 	 	2015	 	 	2014	 	
 	 	(Unaudited)	 	 	 	 	 	
Assets	 	 	 	 	 	 	 	 	
Current Assets:	 	 	 	 	 	 	 	 	
Cash and cash equivalents	 	$	255,669	 	 	$	80,265	 	
Marketable securities	 	 	30,672	 	 	 	42,204	 	
Accounts receivable, net of allowance for doubtful accounts of $626 and $264
   as of June 30, 2015 and December 31, 2014, respectively	 	 	14,600	 	 	 	11,523	 	
Prepaid expenses and other current assets	 	 	8,731	 	 	 	5,013	 	
Total current assets	 	 	309,672	 	 	 	139,005	 	
Marketable securities, noncurrent	 	 	22,820	 	 	 	9,205	 	
Property and equipment, net	 	 	45,621	 	 	 	41,895	 	
Goodwill and intangible assets, net	 	 	13,028	 	 	 	14,152	 	
Other assets	 	 	2,282	 	 	 	1,531	 	
Total assets	 	$	393,423	 	 	$	205,788	 	
 	 	 	 	 	 	 	 	 	
Liabilities and stockholders’ equity	 	 	 	 	 	 	 	 	
Current liabilities:	 	 	 	 	 	 	 	 	
Accounts payable	 	$	4,079	 	 	$	4,763	 	
Accrued liabilities	 	 	7,969	 	 	 	7,841	 	
Accrued compensation and related benefits	 	 	9,674	 	 	 	11,738	 	
Deferred revenue	 	 	64,168	 	 	 	50,756	 	
Current portion of credit facility	 	 	—	 	 	 	3,041	 	
Current portion of capital leases	 	 	—	 	 	 	10	 	
Total current liabilities	 	 	85,890	 	 	 	78,149	 	
Deferred revenue, noncurrent	 	 	715	 	 	 	823	 	
Credit facility, noncurrent	 	 	—	 	 	 	3,911	 	
Other liabilities	 	 	9,988	 	 	 	9,199	 	
Total liabilities	 	 	96,593	 	 	 	92,082	 	
Commitments and contingencies (Note 7)	 	 	 	 	 	 	 	 	
Stockholders’ equity:	 	 	 	 	 	 	 	 	
Preferred stock	 	 	—	 	 	 	—	 	
Common stock	 	 	880	 	 	 	755	 	
Additional paid-in capital	 	 	469,855	 	 	 	246,000	 	
Accumulated other comprehensive loss	 	 	(734	)	 	 	(528	)	
Accumulated deficit	 	 	(172,519	)	 	 	(131,869	)	
Treasury stock at cost (0.5 million shares as of June 30, 2015 and
   December 31, 2014)	 	 	(652	)	 	 	(652	)	
Total stockholders’ equity	 	 	296,830	 	 	 	113,706	 	
Total liabilities and stockholders’ equity	 	$	393,423	 	 	$	205,788	 	
See Notes to Condensed Consolidated Financial Statements.

 
4

 ZENDES K, INC.
 CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
(In thousands, except per share data)
(Unaudited)
 
 	 	Three Months Ended
June 30,	 	 	Six Months Ended
June 30,	 	
 	 	2015	 	 	2014	 	 	2015	 	 	2014	 	
 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
Revenue	 	$	48,227	 	 	$	29,506	 	 	$	90,461	 	 	$	54,598	 	
Cost of revenue (1)	 	 	16,162	 	 	 	11,731	 	 	 	30,452	 	 	 	20,726	 	
Gross profit	 	 	32,065	 	 	 	17,775	 	 	 	60,009	 	 	 	33,872	 	
Operating expenses (1) :	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
Research and development	 	 	14,227	 	 	 	10,499	 	 	 	27,485	 	 	 	15,677	 	
Sales and marketing	 	 	27,242	 	 	 	20,339	 	 	 	50,645	 	 	 	34,626	 	
General and administrative	 	 	11,536	 	 	 	8,315	 	 	 	21,663	 	 	 	14,699	 	
Total operating expenses	 	 	53,005	 	 	 	39,153	 	 	 	99,793	 	 	 	65,002	 	
Operating loss	 	 	(20,940	)	 	 	(21,378	)	 	 	(39,784	)	 	 	(31,130	)	
Other expense, net	 	 	(343	)	 	 	(450	)	 	 	(574	)	 	 	(909	)	
Loss before provision for (benefit from) income taxes	 	 	(21,283	)	 	 	(21,828	)	 	 	(40,358	)	 	 	(32,039	)	
Provision for (benefit from) income taxes	 	 	199	 	 	 	(85	)	 	 	292	 	 	 	(36	)	
Net loss	 	 	(21,482	)	 	 	(21,743	)	 	 	(40,650	)	 	 	(32,003	)	
Accretion of redeemable convertible preferred stock	 	 	—	 	 	 	(6	)	 	 	—	 	 	 	(18	)	
Net loss attributable to common stockholders	 	$	(21,482	)	 	$	(21,749	)	 	$	(40,650	)	 	$	(32,021	)	
 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
Net loss per share attributable to common stockholders,
   basic and diluted	 	$	(0.25	)	 	$	(0.48	)	 	$	(0.50	)	 	$	(0.93	)	
Weighted-average shares used to compute net loss per
   share attributable to common stockholders, basic and
   diluted	 	 	86,390	 	 	 	45,760	 	 	 	81,390	 	 	 	34,325	 	
(1) Includes share-based compensation expense as follows:
 	 	Three Months Ended
June 30,	 	 	Six Months Ended
June 30,	 	
 	 	2015	 	 	2014	 	 	2015	 	 	2014	 	
Cost of revenue	 	$	1,114	 	 	$	1,010	 	 	$	2,004	 	 	$	1,100	 	
Research and development	 	 	4,446	 	 	 	4,168	 	 	 	8,510	 	 	 	4,478	 	
Sales and marketing	 	 	3,937	 	 	 	3,268	 	 	 	6,369	 	 	 	3,758	 	
General and administrative	 	 	3,890	 	 	 	2,537	 	 	 	6,731	 	 	 	3,471	 	
 
See Notes to Condensed Consolidated Financial Statements.

 
5

 ZENDESK, INC.
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS
(In thousands)
(Unaudited)
 
 	 	Three Months Ended
June 30,	 	 	Six Months Ended
June 30,	 	
 	 	2015	 	 	2014	 	 	2015	 	 	2014	 	
 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
Net loss	 	$	(21,482	)	 	$	(21,743	)	 	$	(40,650	)	 	$	(32,003	)	
Other comprehensive loss, net of tax:	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
Net change in unrealized gain (loss) on available-for-
   sale investments	 	 	(8	)	 	 	(7	)	 	 	32	 	 	 	(8	)	
Foreign currency translation gain (loss)	 	 	203	 	 	 	123	 	 	 	(238	)	 	 	320	 	
Comprehensive loss	 	$	(21,287	)	 	$	(21,627	)	 	$	(40,856	)	 	$	(31,691	)	
See Notes to Condensed Consolidated Financial Statements.

 
6

 ZEND  ESK, INC.
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(In thousands)
  (Unaudited)
 
 	 	Six Months Ended June 30,	 	
 	 	2015	 	 	2014	 	
Cash flows from operating activities	 	 	 	 	 	 	 	 	
Net loss	 	$	(40,650	)	 	$	(32,003	)	
Adjustments to reconcile net loss to net cash used in operating activities:	 	 	 	 	 	 	 	 	
Depreciation and amortization	 	 	8,804	 	 	 	4,504	 	
Share-based compensation	 	 	23,614	 	 	 	12,807	 	
Other	 	 	318	 	 	 	178	 	
Excess tax benefit from share-based award activity	 	 	(95	)	 	 	—	 	
Changes in operating assets and liabilities:	 	 	 	 	 	 	 	 	
Accounts receivable	 	 	(3,390	)	 	 	(1,857	)	
Prepaid expenses and other current assets	 	 	(3,261	)	 	 	(2,617	)	
Other assets and liabilities	 	 	(1,365	)	 	 	490	 	
Accounts payable	 	 	(1,063	)	 	 	(535	)	
Accrued liabilities	 	 	1,270	 	 	 	872	 	
Accrued compensation and related benefits	 	 	(2,259	)	 	 	3,426	 	
Deferred revenue	 	 	13,304	 	 	 	9,647	 	
Net cash used in operating activities	 	 	(4,773	)	 	 	(5,088	)	
Cash flows from investing activities	 	 	 	 	 	 	 	 	
Purchases of property and equipment	 	 	(7,406	)	 	 	(13,097	)	
Internal-use software development costs	 	 	(2,383	)	 	 	(3,915	)	
Purchases of marketable securities	 	 	(35,847	)	 	 	(6,464	)	
Proceeds from maturities of marketable securities	 	 	18,020	 	 	 	6,250	 	
Proceeds from sale of marketable securities	 	 	15,317	 	 	 	—	 	
Cash paid for the acquisition of Zopim, net of cash acquired	 	 	(548	)	 	 	(1,896	)	
Net cash used in investing activities	 	 	(12,847	)	 	 	(19,122	)	
Cash flows from financing activities	 	 	 	 	 	 	 	 	
Proceeds from initial public offering, net of issuance costs	 	 	—	 	 	 	104,377	 	
Proceeds from follow-on public offering, net of issuance costs	 	 	190,110	 	 	 	—	 	
Proceeds from exercise of employee stock options	 	 	4,976	 	 	 	3,372	 	
Taxes paid related to net share settlement of equity awards	 	 	(203	)	 	 	(969	)	
Proceeds from issuance of common stock from employee stock purchase plan	 	 	4,948	 	 	 	—	 	
Proceeds from issuance of debt	 	 	—	 	 	 	3,940	 	
Excess tax benefit from share-based award activity	 	 	95	 	 	 	—	 	
Principal payments on debt	 	 	(6,952	)	 	 	(20,000	)	
Principal payments on capital lease obligations	 	 	(10	)	 	 	(179	)	
Net cash provided by financing activities	 	 	192,964	 	 	 	90,541	 	
Effect of exchange rate changes on cash and cash equivalents	 	 	60	 	 	 	(2	)	
Net increase in cash and cash equivalents	 	 	175,404	 	 	 	66,329	 	
Cash and cash equivalents at the beginning of period	 	 	80,265	 	 	 	53,725	 	
Cash and cash equivalents at the end of period	 	$	255,669	 	 	$	120,054	 	
 	 	 	 	 	 	 	 	 	
Supplemental cash flow data:	 	 	 	 	 	 	 	 	
Cash paid for interest and income taxes	 	$	617	 	 	$	660	 	
 	 	 	 	 	 	 	 	 	
Non-cash investing and financing activities:	 	 	 	 	 	 	 	 	
Share-based compensation capitalized in internal-use software development costs	 	$	1,262	 	 	$	1,125	 	
Vesting of early exercised stock options	 	$	576	 	 	$	810	 	
Purchases of property and equipment in accounts payable and accrued expenses	 	$	479	 	 	$	5,001	 	
Property and equipment acquired through tenant improvement allowances	 	$	174	 	 	$	3,554	 	
Issuance of common stock for the acquisition of Zopim	 	$	—	 	 	$	10,893	 	
IPO costs in accounts payable	 	$	—	 	 	$	1,145	 	
See Notes to Condensed Consolidated Financial Statements.

7

 ZENDES K, INC.
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
 
Note 1. Overview and Basis of Presentation
Company and Background
Zendesk was founded in Denmark in 2007 and reincorporated in Delaware in April 2009.
 Our mission is to help organizations and their customers build better relationships. We are a software development company that provides a software-as-a-service, or SaaS, customer service platform. Our platform helps organizations engage with people in new ways that foster long-term customer loyalty and satisfaction. We empower organizations to better answer customers’ questions, and to solve their problems through the channels that people use every day when seeking help, such as email, chat, voice, social media and websites. Our customer service platform also helps people find answers on their own through knowledge bases and communities, capitalizing on the increasing customer preference for self-service. Our customer engagement capabilities allow organizations to proactively serve their customers, reaching out to those who may need help and soliciting feedback about their experience. The openness of our customer service platform makes it easy for organizations to integrate with their other applications. Our customer service platform consolidates the data from customer interactions and provides organizations with powerful analytics and performance benchmarking.
References to Zendesk, the “Company”, “our”, or “we” in these notes refer to Zendesk, Inc. and its subsidiaries on a consolidated basis.
Basis of Presentation
These unaudited condensed consolidated financial statements have been prepared in accordance with United States generally accepted accounting principles, or GAAP, and applicable rules and regulations of the Securities and Exchange Commission, or SEC, regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes included in our Annual Report on Form 10-K for the year ended December 31, 2014, filed on February 17, 2015. There have been no changes to our significant accounting policies described in the Annual Report on Form 10-K that have had a material impact on our condensed consolidated financial statements and related notes.
The consolidated balance sheet as of December 31, 2014 included herein was derived from the audited financial statements as of that date. The unaudited condensed consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial position, results of operations, our comprehensive loss and cash flows for the interim periods, but are not necessarily indicative of the results of operations to be anticipated for the full year ending December 31, 2015.
Follow-On Public Offering
 
In March 2015, we completed a follow-on public offering, in which we issued 8.8 million shares of our common stock at a public offering price of $22.75 per share. We received net proceeds of $190.1 million after deducting underwriting discounts and commissions of $8.7 million and other offering expenses of $0.9 million.
Initial Public Offering
 In May 2014, we completed our initial public offering, or IPO, in which we issued and sold 12.8 million shares of common stock at a public offering price of $9.00 per share. We received net proceeds of $103.1 million after deducting underwriting discounts and commissions of $8.1 million and other offering expenses of $3.8 million. Upon the closing of the IPO, all shares of our then-outstanding redeemable convertible preferred stock automatically converted into an aggregate of 34.3 million shares of common s  tock.
Immaterial Error Correction
 We corrected an immaterial prior period error on the statement of operations for the six months ended June 30, 2014 related to the calculation of weighted average shares used to compute net loss per share attributable to common stockholders.  As a result of this error, basic and diluted net loss per share attributable to common stockholders decreased by $0.02 for the six months ended June 30, 2014.    The adjustment did not affect any other financial statements presented.
8

R eclassification
Certain prior year amounts have been reclassified for consistency with the current year presentation.  These reclassifications had no effect on the reported results of operations.
Use of Estimates
The preparation of consolidated financial statements in conformity with GAAP requires management to make certain estimates, judgments and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements, as well as the reported amounts of revenue and expenses during the reported periods.
Significant items subject to such estimates and assumptions include the fair value of our common stock (through the date of our IPO) and share-based awards, fair value of acquired intangible assets, goodwill, unrecognized tax benefits, useful lives of intangible assets and property and equipment, and the capitalization and estimated useful life of our capitalized internal-use software.
These estimates are based on information available as of the date of the financial statements; therefore, actual results could differ from those estimates.
Concentrations of Risk
There were no customers that represented more than 10% of our accounts receivable balance at June 30, 2015.  There were no customers that individually exceeded 10% of our revenue during the three and six months ended June 30, 2015 or 2014.
Recently Issued and Adopted Accounting Pronouncements
In April 2015, the FASB issued ASU 2015-05 “Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement ”, which amended the existing accounting standards for intangible assets. The amendments provide explicit guidance to customers in determining the accounting for fees paid in a cloud computing arrangement, wherein the arrangements that do not convey a software license to the customer are accounted for as service contracts. We plan to adopt this guidance in our first quarter of 2016. The adoption of this new standard is not expected to have a material impact on our financial statements.
In April 2015, the FASB issued ASU 2015-03 “Simplifying the Presentation of Debt Issuance Costs” , which simplifies the presentation of debt issuance costs by requiring that debt issuance costs be presented in the balance sheet as a direct deduction from the carrying amount of the debt liability, consistent with discounts or premiums. We plan to adopt this guidance in the first quarter of 2016. The adoption of this new standard is not expected to have a material impact on our financial statements.
In May 2014, the FASB issued ASU 2014-09 regarding ASC Topic 606 “ Revenue from Contracts with Customers .” This standard provides principles for recognizing revenue to which an entity expects to be entitled for the transfer of promised goods or services to customers. It is expected to be effective for our fiscal year beginning January 1, 2018. Early adoption is not permitted.  We are currently evaluating the accounting, transition and disclosure requirements of the standard and cannot currently estimate the financial statement impact of adoption.

Note 2. Acquisition
 On March 21, 2014, we completed the acquisition of Zopim Technologies Pte Ltd., or Zopim, a software development company that provides a SaaS live chat service. As of December 31, 2014, we finalized our purchase accounting after adjustments were made to the preliminary purchase price allocation. The total adjusted acquisition date fair value of consideration transferred was $15.8 million ($4.9 million of cash and $10.9 million of our common stock), which included $1.1 million of cash and $2.4 million of common stock consideration that was held back between 12 and 18 months as partial security for standard indemnification obligations.  In the three months ended March 31, 2015, we released $0.5 million of cash and $1.2 million of common stock consideration that was held back, based on the fair value of our common stock on the date of the acquisition.  The total adjusted purchase price was allocated to assets acquired and liabilities assumed as set forth below (in thousands). The excess of the purchase price over the net assets acquired was recorded as goodwill. Goodwill generated from the acquisition is attributable to expected synergies from future growth and potential future monetization opportunities, and is not deductible for tax purpose.
 
Net tangible liabilities assumed	 	$	(385	)	
Intangible assets	 	 	6,560	 	
Goodwill	 	 	9,594	 	
Total purchase price	 	$	15,769	 	
9

 
In connection with the acquisition, we also established a retention plan pursuant to which we issued RSUs for 0.9 million shares of our common stock, which vest in three annual installments from the date of acquisition. In addition, we agreed to pay cash in an aggregate amount of $3.0 million in two annual installments from the date of acquisition to Zopim employees in connection with their continued employment, which is recorded as compensation expense over the associated service periods of such employees.  In the three months ended March 31, 2015, RSUs for 0.3 million shares of our common stock became vested pursuant to the terms of the retention plan, and we paid the first installment of the cash retention bonus in the amount of $1.5 million.
 
Pro forma revenue and results of operations have not been presented because the historical results of Zopim were not material to our consolidated financial statements in any period presented.

Note 3. Fair Value Measurements
The following tables present information about our financial assets measured at fair value on a recurring basis as of June 30, 2015 and December 31, 2014 based on the three-tier fair value hierarchy (in thousands):
 
 	 	Fair Value Measurement at	 	
 	 	June 30, 2015	 	
 	 	Level 1	 	 	Level 2	 	 	Total	 	
Description	 	 	 	 	 	 	 	 	 	 	 	 	
Corporate securities	 	$	—	 	 	$	36,523	 	 	$	36,523	 	
Money market funds	 	 	19,436	 	 	 	—	 	 	 	19,436	 	
Asset-backed securities	 	 	—	 	 	 	8,073	 	 	 	8,073	 	
U.S. treasury securities	 	 	—	 	 	 	6,894	 	 	 	6,894	 	
Agency securities	 	 	—	 	 	 	2,002	 	 	 	2,002	 	
Total	 	$	19,436	 	 	$	53,492	 	 	$	72,928	 	
Included in cash and cash equivalents	 	 	 	 	 	 	 	 	 	$	19,436	 	
Included in marketable securities	 	 	 	 	 	 	 	 	 	$	53,492	 	

 	 	Fair Value Measurement at	 	
 	 	December 31, 2014	 	
 	 	Level 1	 	 	Level 2	 	 	Total	 	
Description	 	 	 	 	 	 	 	 	 	 	 	 	
Corporate securities	 	$	—	 	 	$	40,345	 	 	$	40,345	 	
Money market funds	 	 	21,382	 	 	 	—	 	 	 	21,382	 	
Asset-backed securities	 	 	—	 	 	 	5,080	 	 	 	5,080	 	
U.S. treasury securities	 	 	—	 	 	 	1,991	 	 	 	1,991	 	
Commercial paper	 	 	—	 	 	 	3,993	 	 	 	3,993	 	
Total	 	$	21,382	 	 	$	51,409	 	 	$	72,791	 	
Included in cash and cash equivalents	 	 	 	 	 	 	 	 	 	$	21,382	 	
Included in marketable securities	 	 	 	 	 	 	 	 	 	$	51,409	 	
 
As of June 30, 2015 and December 31, 2014, there were no securities within Level 3 of the fair value hierarchy. Gross unrealized gains or losses for cash equivalents and available-for-sale marketable securities as of June 30, 2015 and December 31, 2014 were not material. As of June 30, 2015 and December 31, 2014, there were no securities that were in an unrealized loss position for more than 12 months.
The following table classifies our available-for-sale marketable securities by contractual maturities as of June 30, 2015 and December 31, 2014 (in thousands):
 
 	 	June 30,
2015	 	 	December 31,
2014	 	
Due in one year or less	 	$	30,672	 	 	$	42,204	 	
Due after one year	 	 	22,820	 	 	 	9,205	 	
Total	 	$	53,492	 	 	$	51,409	 	
 
10

For certain other financial instruments, including accounts receivable, accounts payable and other current liabilities, the carrying amounts approximate their fair value due to the relatively short maturity of these balances. Based on borrowing rates available to us for loans with similar terms and maturities, the carrying value of borrowings approximates fair value within Level 2 of th e fair value hierarchy.
There were no transfers between fair value measurement levels during the three and six months ended June 30, 2015.
Note 4. Property and Equipment
Property and equipment, net consists of the following (in thousands):  
 
 	 	June 30,
2015	 	 	December 31,
2014	 	
Capitalized internal-use software	 	$	23,845	 	 	$	18,541	 	
Hosting equipment	 	 	18,239	 	 	 	14,085	 	
Leasehold improvements	 	 	15,600	 	 	 	15,144	 	
Computer equipment and software	 	 	5,168	 	 	 	4,310	 	
Furniture and fixtures	 	 	4,871	 	 	 	4,524	 	
Construction in progress	 	 	3,578	 	 	 	3,546	 	
Total	 	 	71,301	 	 	 	60,150	 	
Less: accumulated depreciation and amortization	 	 	(25,680	)	 	 	(18,255	)	
Property and equipment, net	 	$	45,621	 	 	$	41,895	 	
 
Depreciation expense was $2.6 million and $1.2 million for the three months ended June 30, 2015 and 2014, respectively, and $4.9 million and $2.3 million for the six months ended June 30, 2015 and 2014, respectively.
 
We capitalized $1.8 million and $3.2 million in internal-use software during the three months ended June 30, 2015 and 2014, respectively, and $3.6 million and $5.0 million for the six months ended June 30, 2015 and 2014, respectively. Included in the capitalized development costs are $0.7 million and $1.1 million in share-based compensation costs for the three months ended June 30, 2015 and 2014, respectively, and $1.3 million and $1.1 million for the six months ended June 30, 2015 and 2014, respectively. Amortization expense of capitalized internal-use software totaled $1.5 million and $1.0 million for the three months ended June 30, 2015 and 2014, respectively, and $3.0 million and $1.7 million for the six months ended June 30, 2015 and 2014, respectively. The carrying value of capitalized internal-use software at June 30, 2015 and December 31, 2014 was $14.2 million and $13.6 million, respectively, including $1.9 million and $3.5 million in construction in progress, respectively.
 
Note 5. Goodwill and Purchased Intangible Assets
The changes in the carrying amount of goodwill for the six months ended June 30, 2015 are as follows (in thousands):
 
Balance as of December 31, 2014	 	$	9,240	 	
Foreign currency translation adjustments	 	 	(164	)	
Balance as of June 30, 2015	 	$	9,076	 	
 
Purchased intangible assets subject to amortization as of June 30, 2015 and December 31, 2014 consist of the following (in thousands).
 
 	 	June 30, 2015	 	
 	 	Cost	 	 	Accumulated
Amortization	 	 	Foreign Currency Translation Adjustment	 	 	Net	 	 	Remaining Useful Life	 	
 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	(In years)	 	
Developed technology	 	$	5,200	 	 	$	(1,897	)	 	$	(187	)	 	$	3,116	 	 	 	2.2	 	
Customer relationships	 	 	1,300	 	 	 	(415	)	 	 	(49	)	 	 	836	 	 	 	2.7	 	
Trade name	 	 	60	 	 	 	(60	)	 	 	—	 	 	 	—	 	 	 	—	 	
 	 	$	6,560	 	 	$	(2,372	)	 	$	(236	)	 	$	3,952	 	 	 	 	 	
 
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 	 	December 31, 2014	 	
 	 	Cost	 	 	Accumulated
Amortization	 	 	Foreign Currency Translation Adjustment	 	 	Net	 	 	Remaining Useful Life	 	
 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	(In years)	 	
Developed technology	 	$	5,200	 	 	$	(1,118	)	 	$	(191	)	 	$	3,891	 	 	 	2.7	 	
Customer relationships	 	 	1,300	 	 	 	(244	)	 	 	(48	)	 	 	1,008	 	 	 	3.2	 	
Trade name	 	 	60	 	 	 	(45	)	 	 	(2	)	 	 	13	 	 	 	0.2	 	
 	 	$	6,560	 	 	$	(1,407	)	 	$	(241	)	 	$	4,912	 	 	 	 	 	
 
Amortization expense of purchased intangible assets for the three months ended June 30, 2015 and 2014 was $0.4 million and $0.5 million, respectively, and $1.0 million and $0.5 million for the six months ended June 30, 2015 and 2014, respectively.
Estimated future amortization expense as of June 30, 2015 is as follows (in thousands):
 
Remainder of 2015	 	$	861	 	
2016	 	 	1,709	 	
2017	 	 	1,315	 	
2018	 	 	67	 	
 	 	$	3,952	 	
 
Note 6. Credit Facility
Until its termination in June 2015, we had a credit facility with Silicon Valley Bank consisting of a $20.0 million revolving line of credit and a $10.0 million equipment line of credit. The revolving line of credit bore interest at the prime rate plus 2.0% per annum prior to our IPO and was reduced to the prime rate upon the consummation of our IPO.  Borrowings on the equipment line of credit bore interest of 2.5% per annum. In June 2014 we repaid all outstanding principal and accrued interest under the revolving line of credit. On June 29, 2015 we repaid all outstanding principal and interest under the equipment line of credit and terminated the Silicon Valley Bank credit facility.

Note 7. Commitments and Contingencies
Leases
We lease office space under noncancelable operating leases with various expiration dates. Certain of the office space lease agreements contain rent holidays or rent escalation provisions. Rent holiday and rent escalation provisions are considered in determining the straight-line expense to be recorded over the lease term. The lease term begins on the date of initial possession of the leased property for purposes of recognizing lease expense on a straight-line basis over the term of the lease. Rent expense was $1.8 million for the three months ended June 30, 2015 and 2014, and $3.4 million and $3.5 million for the six months ended June 30, 2015 and 2014, respectively.  
We leased computer equipment from various parties under capital lease agreements that expired in March 2015.  
Litigation and Loss Contingencies
We accrue estimates for resolution of legal and other contingencies when losses are probable and estimable. From time to time, we may become a party to litigation and subject to claims incident to the ordinary course of business, including intellectual property claims, labor and employment claims, and threatened claims, breach of contract claims, tax, and other matters. We currently have no material pending litigation.
We are not currently aware of any litigation matters or loss contingencies that would be expected to have a material adverse effect on our business, consolidated financial position, results of operations, comprehensive loss, or cash flows.
12

Indemnifications
In the ordinary course of business, we enter into contractual arrangements under which we agree to provide indemnification of varying scope and terms to business partners and other parties with respect to certain matters, including, but not limited to, losses arising out of the breach of such agreements, intellectual property infringement claims made by third parties, and other liabilities relating to or arising from our customer service platform, live chat software, or our acts or omissions. In these circumstances, payment may be conditional on the other party making a claim pursuant to the procedures specified in the particular contract. Further, our obligations under these agreements may be limited in terms of time and/or amount, and in some instances, we may have recourse against third parties for certain payments. In addition, we have indemnification agreements with our directors and executive officers that require us, among other things, to indemnify them against certain liabilities that may arise by reason of their status or service as directors or officers. The terms of such obligations may vary. To date, we have not incurred any material costs, and we have not accrued any liabilities in the accompanying condensed consolidated financial statements, as a result of these obligations.
We have entered into service-level agreements with certain customers warranting defined levels of uptime reliability and performance and permitting those customers to receive credits for future services in the event that we fail to meet those levels. To date, we have not accrued for any significant liabilities in the accompanying consolidated financial statements as a result of these service-level agreements.  

Note 8. Common Stock and Stockholders’ Equity
 
Common Stock
Upon the completion of our IPO, we increased the number of shares authorized for issuance from 125 million to 400 million with a par value of $0.01 per share.  As of June 30, 2015 and December 31, 2014, there were 88.3 million and 76.1 million shares of common stock issued and 87.8 million and 75.5 million shares outstanding, respectively.  Included within the number of shares issued and outstanding were 0.4 million and 0.6 million shares of common stock subject to repurchase, as of June 30, 2015 and December 31, 2014, respectively.
 
Preferred Stock
As of June 30, 2015 and December 31, 2014, 10 million shares of preferred stock were authorized for issuance with a par value of $0.01 per share and no shares of preferred stock were issued or outstanding.
Employee Equity Plans
Employee Stock Purchase Plan
 Our board of directors adopted the Employee Stock Purchase Plan, or ESPP, in February 2014, which became effective in May 2014 upon the effectiveness of the registration statement related to our IPO. Under the ESPP, eligible employees are granted options to purchase shares of our common stock through payroll deductions. The ESPP provides for eighteen-month offering periods, which include three six-month purchase periods. At the end of each purchase period, employees are able to purchase shares at 85% of the lower of the fair market value of our common stock at the beginning of an offering period or the fair market value of our common stock at the end of the purchase period. We commenced our first purchase period under the ESPP on May 15, 2014. For the three and six months ended June 30, 2015, 0.6 million shares of common stock were purchased under the ESPP. Pursuant to the terms of the ESPP, the number of shares reserved under the ESPP increased by 0.8 million shares on January 1, 2015.  As of June 30, 2015, 3.4 million shares of common stock were available for issuance under the ESPP.
Stock Option and Grant Plans
Our board of directors adopted the 2009 Stock Option and Grant Plan, or the 2009 Plan, in July 2009. The 2009 Plan was terminated in connection with our IPO, and accordingly, no shares are available for issuance under this plan. The 2009 Plan continues to govern outstanding awards granted thereunder.
Our 2014 Stock Option and Incentive Plan, or the 2014 Plan, serves as the successor to our 2009 Plan.  Pursuant to the terms of the 2014 Plan, the number of shares reserved for issuance under the 2014 Plan increased by 3.8 million shares on January 1, 2015.  As of June 30, 2015, we had 6.8 million shares of common stock available for future grants under the 2014 Plan.
13

The following table summarizes our stock option and RSU award activities for the six months ended June 30 , 2015 (in thousands, except per share information):
 
 	 	 	 	 	 	Options Outstanding	 	 	RSUs Outstanding	 	
 	 	 	 	 	 	 	 	 	 	 	 	 	 	Weighted	 	 	 	 	 	 	 	 	 	 	 	 	 	
 	 	 	 	 	 	 	 	 	 	 	 	 	 	Average	 	 	 	 	 	 	 	 	 	 	Weighted	 	
 	 	Shares	 	 	Number	 	 	Weighted	 	 	Remaining	 	 	Aggregate	 	 	 	 	 	 	Average	 	
 	 	Available	 	 	of	 	 	Average	 	 	Contractual	 	 	Intrinsic	 	 	Outstanding	 	 	Grant   Date	 	
 	 	for Grant	 	 	Shares	 	 	Exercise   Price	 	 	Term	 	 	Value	 	 	RSUs	 	 	Fair Value	 	
 	 	 	 	 	 	 	 	 	 	 	 	 	 	(In years)	 	 	 	 	 	 	 	 	 	 	 	 	 	
Outstanding — January 1, 2015	 	 	7,560	 	 	 	12,043	 	 	$	7.39	 	 	 	8.29	 	 	$	204,467	 	 	 	3,064	 	 	$	13.69	 	
Increase in authorized shares	 	 	3,779	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
Stock options granted	 	 	(2,009	)	 	 	2,009	 	 	 	24.25	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
RSUs granted	 	 	(2,794	)	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	2,794	 	 	 	23.93	 	
Stock options exercised	 	 	 	 	 	 	(2,025	)	 	 	2.46	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
RSUs vested	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	(891	)	 	 	14.93	 	
Stock options forfeited or canceled	 	 	62	 	 	 	(62	)	 	 	4.33	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
RSUs forfeited or cancelled	 	 	218	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	(218	)	 	 	18.30	 	
Outstanding — June 30, 2015	 	 	6,816	 	 	 	11,965	 	 	$	11.07	 	 	 	8.33	 	 	$	133,293	 	 	 	4,749	 	 	$	19.27	 	
 
Aggregate intrinsic value represents the difference between the Company's closing stock price of its common stock and the exercise price of outstanding, in-the-money options. The Company’s closing stock price as reported on the New York Stock Exchange as of June 30, 2015 was $22.21.
 
As of June 30, 2015, we had a total of $142.0 million in future share-based compensation expense related to all equity awards, net of estimated forfeitures, to be recognized over a weighted average period of 3.3 years.
Early Exercise of Stock Options and Purchase of Unvested Stock Awards
Certain of our stock options permit early exercise. Common stock purchased pursuant to an early exercise of stock options or unvested stock awards is not deemed to be outstanding for financial reporting purposes until those shares vest. Therefore, cash received in exchange for unvested shares is recorded as a liability and is transferred into common stock and additional paid-in capital as the shares vest. Upon termination of service, we may, at our discretion, repurchase unvested shares acquired through early exercise of stock options or purchase of unvested stock awards at a price equal to the price per share paid upon the exercise of such options or the purchase of such unvested stock awards. As of June 30, 2015 and December 31, 2014, there were 0.4 million and 0.6 million shares, respectively, outstanding as a result of the early exercise of stock options and purchase of unvested stock awards by our employees and directors that were classified as accrued liabilities for an aggregated amount of $1.5 million and $2.1 million, respectively.

Note 9. Net Loss Per Share
We compute net loss per share of common stock in conformity with the two-class method required for participating securities. We considered all series of the redeemable convertible preferred stock to be participating securities as the holders of the preferred stock were entitled to receive a non-cumulative dividend on a pari passu basis in the event that a dividend is paid on common stock. We also consider shares of common stock issued upon the early exercise of stock options subject to repurchase to be participating securities, because holders of such shares have non-forfeitable dividend rights in the event a dividend is paid on common stock. The holders of all series of the redeemable convertible preferred stock and the holders of shares of common stock acquired upon early exercise of stock options do not have a contractual obligation to share in our losses. As such, our net losses for the three and six months ended June 30, 2015 and 2014 were not allocated to these participating securities. Upon the closing of the IPO in May 2014, all shares of our then-outstanding redeemable convertible preferred stock automatically converted into our common stock.  
Basic net loss per share attributable to common stockholders is computed by dividing the net loss attributable to common stockholders by the weighted-average number of shares of common stock outstanding during the period, less the weighted-average unvested common stock subject to repurchase. Diluted net loss per share is computed by giving effect to all potential shares of common stock, including common stock issuable upon conversion of the redeemable convertible preferred stock, outstanding share-based awards, and outstanding warrants, to the extent dilutive. Basic and diluted net loss per share was the same for each period presented as the inclusion of all potential common stock outstanding would have been anti-dilutive.
14

The fol lowing table presents the calculation of basic and diluted net loss per share for the periods presented (in thousands, except per share data):
 
 	 	Three Months Ended
June 30,	 	 	Six Months Ended
June 30,	 	
 	 	2015	 	 	2014	 	 	2015	 	 	2014	 	
Net loss	 	$	(21,482	)	 	$	(21,743	)	 	$	(40,650	)	 	$	(32,003	)	
Less: Accretion of redeemable convertible preferred stock	 	 	—	 	 	 	(6	)	 	 	—	 	 	 	(18	)	
Net loss attributable to common stockholders	 	$	(21,482	)	 	$	(21,749	)	 	$	(40,650	)	 	$	(32,021	)	
Basic shares:	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
Weighted-average shares used to compute basic net
   loss per share	 	 	86,390	 	 	 	45,760	 	 	 	81,390	 	 	 	34,325	 	
Diluted shares:	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
Weighted-average shares used to compute diluted net
   loss per share	 	 	86,390	 	 	 	45,760	 	 	 	81,390	 	 	 	34,325	 	
Net loss per share attributable to common stockholders:	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
Basic and diluted	 	$	(0.25	)	 	$	(0.48	)	 	$	(0.50	)	 	$	(0.93	)	
 
The anti-dilutive securities excluded from the shares used to calculate the diluted net loss per share are as follows (in thousands):
 
 	 	As of June 30,	 	
 	 	2015	 	 	2014	 	
Shares subject to outstanding common stock options and employee stock
   purchase plan	 	 	12,106	 	 	 	14,433	 	
Restricted stock units	 	 	4,749	 	 	 	2,376	 	
 	 	 	16,855	 	 	 	16,809	 	
 
Note 10. Income Taxes
The effective tax rates for the three and six months ended June 30, 2015 and 2014 were less than 1%.  The effective tax rate differs from the statutory rate primarily as a result of not recognizing a deferred tax asset for U.S. losses due to having a full valuation allowance against U.S. deferred tax assets.  There were no material changes to the unrecognized tax benefits during the three and six months ended June 30, 2015 and 2014.
 
Note 11. Geographic Information
Our chief operating decision maker reviews the financial information presented on a consolidated basis for purposes of allocating resources and evaluating our financial performance. Accordingly, we have determined that we operate in a single reporting segment.
Revenue
The following table presents our revenue by geographic areas, as determined based on the billing address of our customers (in thousands):
 
 	 	Three Months Ended
June 30,	 	 	Six Months Ended
June 30,	 	
 	 	2015	 	 	2014	 	 	2015	 	 	2014	 	
United States	 	$	26,854	 	 	$	16,858	 	 	$	49,706	 	 	$	31,743	 	
EMEA	 	 	13,461	 	 	 	8,241	 	 	 	26,037	 	 	 	14,861	 	
Other	 	 	7,912	 	 	 	4,407	 	 	 	14,718	 	 	 	7,994	 	
Total	 	$	48,227	 	 	$	29,506	 	 	$	90,461	 	 	$	54,598	 	
 
15

Long-Lived Assets
The following table presents our long-lived assets by geographic areas (in thousands):
 
 	 	June 30, 2015	 	 	December 31, 2014	 	
United States	 	$	25,592	 	 	$	22,817	 	
EMEA	 	 	4,772	 	 	 	4,373	 	
Other	 	 	1,063	 	 	 	1,095	 	
Total	 	$	31,427	 	 	$	28,286	 	
 
The carrying value of capitalized internal-use software and intangible assets is excluded from the balance of long-lived assets presented in the table above.

 
16

 Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations
The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our condensed consolidated financial statements and related notes appearing elsewhere in this Quarterly Report on Form 10-Q and in our Annual Report on Form 10-K for the year ended December 31, 2014, filed with the SEC on February 17, 2015. As discussed in the section titled “Special Note Regarding Forward-Looking Statements,” the following discussion and analysis contains forward-looking statements that involve risks and uncertainties, as well as assumptions that, if they never materialize or prove incorrect, could cause our results to differ materially from those expressed or implied by such forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to, those identified below, and those discussed in the section titled “Risk Factors” included under Part II, Item 1A below.
Overview
 Zendesk’s mission is to help organizations and their customers build better relationships. We are a software development company that provides a SaaS customer service platform that enables our customers to provide tailored support through multiple channels, establish effective self-service support resources, proactively serve customers through customer engagement capabilities, integrate with other applications, and consolidate and analyze data from customer interactions. We also provide SaaS live chat software that can be utilized independently to facilitate proactive communications between organizations and their customers or integrated easily into our platform.
Our business model is designed to drive organic growth, leverage positive word-of-mouth, and remove friction from the evaluation and purchasing process. We offer a range of subscription account plans for our customer service platform and live chat software that vary in pricing based on functionality, the type and, for our customer service platform, the amount of product support we offer and service-level guarantees.
Our largest source of qualified sales leads is free trials of our customer service platform commenced by prospects, many of which come from organic search, customer referrals, and other unpaid sources. For larger organizations, our sales team focuses on a land and expand strategy, which leverages this grassroots adoption and seeks to expand our footprint within organizations. We have field sales and marketing teams primarily responsible for lead discovery, qualification, and account management for larger organizations. Many of our existing customers to date have been small to medium sized organizations that make purchasing decisions with limited interaction with our sales or other personnel; as we continue to focus on and become more dependent on sales to larger organizations and increase our investment in paid sources of qualified leads, we expect paid sources of qualified leads to become a greater percentage of our total sources of qualified leads and our sales cycles to lengthen and become less predictable.
For the three months ended June 30, 2015 and 2014, our revenue was $48.3 million and $29.5 million, respectively, representing a 63% growth rate. For the six months ended June 30, 2015 and 2014, our revenue was $90.5 million and $54.6 million, respectively, representing a 66% growth rate.  For the three months ended June 30, 2015 and 2014 we derived $21.4 million, or 44% and $12.6 million, or 43%, respectively, of our revenue from customers located outside of the United States. For the six months ended June 30, 2015 and 2014 we derived $40.8 million, or 45% and $22.9 million, or 42%, respectively, of our revenue from customers located outside of the United States.  We expect that the rate of growth in our revenue will decline as our business scales, even if our revenue continues to grow in absolute terms. For the three months ended June 30, 2015 and 2014, we generated net losses of $21.5 million and $21.7 million, respectively. For the six months ended June 30, 2015 and 2014, we generated net losses of $40.7 million and $32.0 million, respectively. We intend to invest aggressively to drive continued growth and market leadership.
 The growth of our business and our future success depends on many factors, including our ability to continue to innovate, maintain our leadership in the small and medium-sized business, or SMB, market, expand our enterprise customer base, and increase our global customer footprint. While these areas represent significant opportunities for us, we also face significant risks and challenges that we must successfully address in order to sustain the growth of our business and improve our operating results. We anticipate that we will expand our operations and headcount in the near term. The expected addition of new personnel and the investments that we anticipate will be necessary to manage our anticipated growth, including investments in hosting equipment, leasehold improvements and related fixed assets, will make it more difficult for us to achieve profitability. Many of these investments will occur in advance of experiencing any direct benefit and will make it difficult to determine if we are allocating our resources efficiently.
17

We have focused on rapidly growing our business and plan to continue to invest for long-te rm growth. We expect to continue to make significant upfront investments in our self-managed colocation data center infrastructure and additional personnel to support our growth. The amount and timing of these upfront infrastructure investments will vary b ased on our estimates of projected growth and the scale of such deployments. We also expect to continue to make significant investments in our customer support organization including expanding our product support and professional services teams. While our move from a managed-service hosting model for our core platform to a self-managed colocation strategy is largely complete, improvements to our gross margin from such move have been partially offset by other hosting expenses, primarily related to the suppor t of our platform infrastructure. Over time, we anticipate that we will gain economies of scale by utilizing added capacity within our self-managed colocation data centers and reducing the need for direct incremental personnel costs resulting from growth i n our number of customers. As a result, we expect our gross margin to improve in the future, although our gross margin may fluctuate from period to period as our revenue fluctuates and as a result of the timing and amount of investments to expand our produ ct support team, investments in additional personnel, equipment, and facilities to support our platform architecture, increased share-based compensation expenses, as well as the amortization of costs associated with capitalized internal-use software and pu rchased intangible assets.
We expect our operating expenses to continue to increase in absolute dollars in future periods. We have invested, and expect to continue to invest, in our software development efforts to introduce new products and broaden the functionality of our customer service platform and our live chat software. We plan to continue to expand our sales and marketing organizations, particularly in connection with our efforts to expand our enterprise customer base. We also expect to incur additional general and administrative costs in order to support the growth of our business and the infrastructure required to comply with our obligations as a public company.
Key Business Metrics
We review a number of operating metrics, including the following key metrics, to evaluate our business, measure our performance, identify trends affecting our business, formulate business plans, and make strategic decisions.
 Number of Paid Customer Accounts.  We believe that our ability to increase our number of paid accounts on our customer service platform and live chat software is an indicator of our market penetration, the growth of our business, and our potential future business opportunities. We define the number of paid customer accounts as the sum of the number of accounts on our customer service platform, exclusive of our Starter plan, free trials or other free services, and the number of accounts using our live chat software, exclusive of free trials or other free services, each as of the end of the period and as identified by a unique account identifier. Use of our customer service platform and live chat software requires separate subscriptions and each of these accounts are treated as a separate paid customer account. Existing customers may also expand their utilization of our customer service platform or live chat software by adding new accounts and a single consolidated organization or customer may have multiple accounts across each of our customer service platform and live chat software to service separate subsidiaries, divisions, or work processes. Each of these accounts is also treated as a separate paid customer account. An increase in the number of paid customer accounts generally correlates to an increase in the number of authorized users, and we refer to each such user as an “agent”, licensed to use our platform, which directly affects our revenue and results of operations. We view growth in this metric as a measure of our success in converting new sales opportunities. We had approximately 60,700 paid customer accounts as of June 30, 2015, including approximately 31,100 paid customer accounts on our customer service platform and approximately 29,600 paid customer accounts using our live chat software. As the total number of paid customer accounts increas  es, we expect the rate of growth in the number of paid customer accounts to decline.
Prior to December 31, 2014, we measured the number of customer accounts on our customer service platform, defined as the number of accounts on our customer service platform, exclusive of free trials or other free services, but including our low cost Starter plan, as of the end of specified periods as identified by a unique account identifier. We believe that including the number of paid customer accounts for both our customer service platform and our live chat software in the number of paid customer accounts, while eliminating our Starter plan from this metric, provides an operating metric that reflects the customer accounts that have the most impact on our operating results.
 
18

Dollar-Based Net Expansion Rate.   Our ability to generate revenue is dependent upon our ability to maintain our relationships with our customers and to increase their utilization of our customer service platform. We believe we can achieve this by focusin g on delivering value and functionality that retains our existing customers, expands the number of authorized agents associated with an existing paid customer account on our customer service platform, and results in upgrades to higher-priced subscription p lans. Maintaining customer relationships allows us to sustain and increase revenue to the extent customers maintain or increase the number of authorized agents licensed to use our customer service platform. We assess our performance in this area by measuri ng our dollar-based net expansion rate. Our dollar-based net expansion rate provides a measurement of our ability to increase revenue across our existing customer base through expansion of authorized agents associated with a paid customer account on our cu stomer service platform, and upgrades in subscription plan, as offset by churn, contraction in authorized agents associated with a paid customer account on our customer service platform, and downgrades in subscription plans. We do not currently incorporate operating metrics associated with our live chat software into our measurement of dollar-based net expansion rate.
Our dollar-based net expansion rate is based upon our monthly recurring revenue for a set of paid customer accounts on our customer service platform. Monthly recurring revenue for a paid customer account is a legal and contractual determination made by assessing the contractual terms of each paid customer account, as of the date of determination, as to the revenue we expect to generate in the next monthly period for that paid customer account, assuming no changes to the subscription and without taking into account any one-time discounts or any platform usage above the subscription base, if any, that may be applicable to such subscription. Monthly recurring revenue is not determined by reference to historical revenue, deferred revenue or any other United States generally accepted accounting principles, or GAAP, financial measure over any period. It is forward-looking and contractually derived as of the date of determination.
We calculate our dollar-based net expansion rate by dividing our retained revenue net of contraction and churn by our base revenue. We define our base revenue as the aggregate monthly recurring revenue of the paid customer accounts on our customer service platform as of the date one year prior to the date of calculation. We define our retained revenue net of contraction and churn as the aggregate monthly recurring revenue of the same customer base included in our measure of base revenue at the end of the annual period being measured. Our dollar-based net expansion rate is also adjusted to eliminate the effect of certain activities that we identify involving the transfer of agents between paid customer accounts, consolidation of customer accounts, or the split of a single paid customer account into multiple paid customer accounts. In addition, our dollar-based net expansion rate is adjusted to include paid customer accounts in the customer base used to determine retained revenue net of contraction and churn that share common corporate information with customers in the customer base that is used to determine our base revenue. Giving effect to this consolidation results in our dollar-based net expansion rate being calculated across approximately 28,500 customers, as compared to the approximately 31,100 total paid customer accounts as of June 30, 2015.  To the extent that we can determine that the underlying customers do not share common corporate information, we do not aggregate paid customer accounts associated with reseller and other similar channel arrangements for the purposes of determining our dollar-based net expansion rate. While not material, we believe the failure to account for these activities would otherwise skew our dollar-based net expansion metrics associated with customers that maintain multiple paid customer accounts on our customer service platform and paid customer accounts associated with reseller and other similar channel arrangements.
Beginning with the quarter ended December 31, 2014, we adjusted our calculation of dollar-based net expansion rate to exclude customer accounts on the low cost Starter plan for our customer service platform. In prior periods, we presented a dollar-based net expansion rate, or the historic dollar-based net expansion rate, which included customer accounts on our low-cost Starter subscription plan for our customer service platform. We calculated the historic dollar-based net expansion rate in the same manner as our current calculation of the dollar-based net expansion rate, with the exception that the customer base used in the determination of retained revenue net of contraction and churn and base revenue included the customer accounts on our Starter subscription plan while our current calculation of dollar-based net expansion rate excludes these accounts.  While relatively insignificant, we believe that the exclusion of subscriptions to our Starter plan from our calculation of net dollar expansion provides a more useful measure of the effectiveness of resources we deploy to expand our relationships with existing customers.
 Our dollar-based net expansion rate was 122% as of June 30, 2015. We expect our dollar-based net expansion rate to decline over time as our aggregate monthly recurring revenue grows. Our dollar-based net expansion rate as of March 31, 2015 was adjusted to correct a computational error. Our adjusted dollar-based net expansion rate as of March 31, 2015 was 119%.
19

Components of Results of Operation s
Revenue
We derive substantially all of our revenue from subscription services, which are comprised of subscription fees from customer accounts on our customer service platform and, to a lesser extent, live chat software. Each subscription may have multiple authorized agents, ranging from one to thousands for various customer accounts. Our pricing is generally established on a per agent basis. We offer a range of subscription account plans that vary in pricing based on functionality and, for our customer service platform, the type and amount of product support, and service-level commitments. Certain arrangements provide for incremental fees above a fixed maximum number of monthly agents during the subscription term. We sell subscription services under contractual agreements that vary in length, ranging between one month and multiple years, with the majority of subscriptions having a term of either one month or one year.
Subscription fees are generally non-refundable regardless of the actual use of the service. Subscription revenue is typically affected by the number of customer accounts, number of agents, and the type of plan purchased by our customers, and is recognized ratably over the term of the arrangement beginning on the date that our services are made available to our customers. Subscription services purchased online are typically paid for via a credit card on the date of purchase while subscription services purchased through our internal sales organization are generally billed with monthly, quarterly, or annual payment frequency. Due to our mixed contract lengths and billing frequencies, the annualized value of the arrangements we enter into with our customers may not be fully reflected in deferred revenue at any single point in time. Accordingly, we do not believe that the change in deferred revenue for any period is an accurate indicator of future revenue for a given period of time.
We derive an immaterial amount of revenue from implementation, voice, and training services, for which we recognize revenue upon completion.
Cost of Revenue, Gross Margin, and Operating Expenses
Cost of Revenue . Cost of revenue consists primarily of personnel costs (including salaries, share-based compensation, and benefits) for employees associated with our platform infrastructure and our product support organizations, depreciation and other expenses associated with our self-managed colocation data centers, data center costs related to hosting our platform, amortization expense associated with capitalized internal-use software, payment processing fees, third party license fees, amortization expense associated with purchased intangible assets, and allocated shared costs. We allocate shared costs such as facilities, shared information technology and security costs to all departments based on headcount. As such, allocated shared costs are reflected in cost of revenue and each operating expense category.
Currently, we primarily operate out of three self-managed colocation data centers, in which we manage our own network equipment and systems, located in California, Virginia, and Ireland, and utilize third-party managed hosting facilities located in North America, Europe, and Asia. In order to improve our long-term cost efficiency, we intend to expand our operations in the existing and establish other self-managed colocation data centers over time. Our live chat software was originally hosted in a managed hosting facility in Florida and in January 2015, we migrated all accounts to our self-managed colocation facility in Ireland. In addition, we utilize third-party managed hosting facilities located in North America, Europe, and Asia to support our platform infrastructure and for certain research and development purposes.    In certain markets and for certain products, we may elect not to pursue our self-managed colocation strategy, depending on individual market dynamics.
We intend to continue to invest additional resources in our platform infrastructure and our product support organizations. As we continue to invest in technology innovation, we expect to have increased capitalized internal-use software costs and related amortization. We expect our investment in technology to not only expand the capability of our customer service platform and live chat software but also increase the efficiency of how we deliver our customer service platform and live chat software, enabling us to improve our gross margin over time. The level and timing of investment in these areas could affect our cost of revenue in the future. We expect third party license fees for technology that is incorporated in certain of our subscription plans to increase over time as we increase the number of customers using such subscription plans and take steps necessary to secure long term access to such technology.
Gross Margin.  Gross margin is gross profit expressed as a percentage of revenue. Our gross margin may fluctuate from period to period as our revenue fluctuates and as a result of the timing and amount of investments to expand our product support and professional services teams, investments in additional personnel, equipment, and facilities to support our platform architecture, increased share-based compensation expenses, as well as the amortization of costs associated with capitalized internal-use software and purchased intangible assets.
20

Research and Development.  Research and development expenses consist primarily of personnel costs (including salaries, share-based compensation, and benefits) for employees associated with our research and development organization and allocated shared costs.
We focus our research and development efforts on the continued development of our customer service platform and live chat software, including the development and deployment of new features and functionality and enhancements to our software architecture. We expect that, in the future, research and development expenses will increase in absolute dollars, but will fluctuate as a percentage of our revenue depending on fluctuations in revenue and the timing, extent and nature of our research and development expenses.  In particular, these expenses are sensitive to the impact of share-based compensation which may cause these expenses to fluctuate from period to period.
Sales and Marketing.  Sales and marketing expenses consist of personnel costs (including salaries, commissions, share-based compensation, and benefits) for employees associated with our sales and marketing organizations, costs of marketing activities, and allocated shared costs. Marketing activities include online lead generation, advertising, promotional events, and public and community relations. Sales commissions and other incremental costs to acquire contracts are expensed as incurred.
We focus our sales and marketing efforts on generating awareness of our company, creating sales leads, establishing and promoting our brand, and cultivating a community of successful and vocal customers. We plan to continue investing in sales and marketing by increasing the number of direct sales employees, developing our field sales and marketing teams, expanding our indirect sales channels, building brand awareness, and sponsoring additional marketing events, which we believe will enable us to add new customers and increase penetration within our existing customer base. Because we do not have a long history of undertaking or growing many of these activities, we cannot predict whether, or to what extent, our revenue will increase as we invest in these strategies. We expect our sales and marketing expenses to continue to increase in absolute dollars and continue to be our largest operating expense category for the foreseeable future. Our sales and marketing expenses as a percentage of our revenue over time may fluctuate from period to period depending on fluctuations in revenue and the timing and extent of our sales and marketing expenses.  In particular, these expenses are sensitive to the impact of share-based compensation which may cause these expenses to fluctuate from period to period.
General and Administrative . General and administrative expenses consist primarily of personnel costs (including salaries, share-based compensation, and benefits) for our executive, finance, legal, human resources, and other administrative employees. In addition, general and administrative expenses include fees for third-party professional services, including legal, accounting, and tax related services, and other corporate expenses and allocated shared costs.
We expect to incur incremental costs associated with supporting the growth of our business, both in terms of size and geographic expansion, and the infrastructure required to be a public company. Such costs include increases in our finance, legal, and human resources personnel, additional legal, accounting, and tax related services fees, insurance costs, board of directors’ compensation and costs of achieving and maintaining compliance with Section 404 of the Sarbanes-Oxley Act of 2002, or the Sarbanes-Oxley Act, and other costs associated with being a public company. As a result, we expect our general and administrative expenses to continue to increase in absolute dollars for the foreseeable future. However, we expect our general and administrative expenses to decrease modestly as a percentage of our revenue in the long-term, although this may fluctuate from period to period depending on fluctuations in revenue and the timing and extent of our general and administrative expenses.  In particular, these expenses are sensitive to the impact of share-based compensation which may cause these expenses to fluctuate from period to period.
Other Expense, Net
Other expense, net consists primarily of foreign currency losses and interest expense associated with our credit facility, offset by interest income from marketable securities.
 Provision for (Benefit from) Income Taxes
Provision for (benefit from) income taxes consists of federal and state income taxes in the United States and income taxes in certain foreign jurisdictions. See Note 10 of the notes to our unaudited condensed consolidated financial statements included elsewhere in this Quarterly Report on Form 10-Q.
21

Results of Operations
The following tables set forth our results of operations for the periods presented in dollars and as a percentage of our revenue:
 
 	 	Three Months Ended June 30,	 	 	Six Months Ended June 30,	 	
 	 	2015	 	 	2014	 	 	2015	 	 	2014	 	
 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
Revenue	 	$	48,227	 	 	$	29,506	 	 	$	90,461	 	 	$	54,598	 	
Cost of revenue (1)	 	 	16,162	 	 	 	11,731	 	 	 	30,452	 	 	 	20,726	 	
Gross profit	 	 	32,065	 	 	 	17,775	 	 	 	60,009	 	 	 	33,872	 	
Operating expenses (1) :	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
Research and development	 	 	14,227	 	 	 	10,499	 	 	 	27,485	 	 	 	15,677	 	
Sales and marketing	 	 	27,242	 	 	 	20,339	 	 	 	50,645	 	 	 	34,626	 	
General and administrative	 	 	11,536	 	 	 	8,315	 	 	 	21,663	 	 	 	14,699	 	
Total operating expenses	 	 	53,005	 	 	 	39,153	 	 	 	99,793	 	 	 	65,002	 	
Operating loss	 	 	(20,940	)	 	 	(21,378	)	 	 	(39,784	)	 	 	(31,130	)	
Other expense, net	 	 	(343	)	 	 	(450	)	 	 	(574	)	 	 	(909	)	
Loss before provision for (benefit from) income taxes	 	 	(21,283	)	 	 	(21,828	)	 	 	(40,358	)	 	 	(32,039	)	
Provision for (benefit from) income taxes	 	 	199	 	 	 	(85	)	 	 	292	 	 	 	(36	)	
Net loss	 	$	(21,482	)	 	$	(21,743	)	 	$	(40,650	)	 	$	(32,003	)	
______________
(1) Includes share-based compensation expense as follows:
 
 	 	Three Months Ended
June 30,	 	 	Six Months Ended
June 30,	 	
 	 	2015	 	 	2014	 	 	2015	 	 	2014	 	
Cost of revenue	 	$	1,114	 	 	$	1,010	 	 	$	2,004	 	 	$	1,100	 	
Research and development	 	 	4,446	 	 	 	4,168	 	 	 	8,510	 	 	 	4,478	 	
Sales and marketing	 	 	3,937	 	 	 	3,268	 	 	 	6,369	 	 	 	3,758	 	
General and administrative	 	 	3,890	 	 	 	2,537	 	 	 	6,731	 	 	 	3,471	 	
 
 	 	Three Months Ended June 30,	 	 	Six Months Ended June 30,	 	
 	 	2015	 	 	2014	 	 	2015	 	 	2014	 	
 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
Revenue	 	 	100.0	%	 	 	100.0	%	 	 	100.0	%	 	 	100.0	%	
Cost of revenue (2)	 	 	33.5	 	 	 	39.8	 	 	 	33.7	 	 	 	38.0	 	
Gross profit	 	 	66.5	 	 	 	60.2	 	 	 	66.3	 	 	 	62.0	 	
Operating expenses (2) :	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	
Research and development	 	 	29.5	 	 	 	35.6	 	 	 	30.4	 	 	 	28.7	 	
Sales and marketing	 	 	56.5	 	 	 	68.9	 	 	 	56.0	 	 	 	63.4	 	
General and administrative	 	 	23.9	 	 	 	28.2	 	 	 	23.9	 	 	 	26.9	 	
Total operating expenses	 	 	109.9	 	 	 	132.7	 	 	 	110.3	 	 	 	119.1	 	
Operating loss	 	 	(43.4	)	 	 	(72.5	)	 	 	(44.0	)	 	 	(57.0	)	
Other expense, net	 	 	(0.7	)	 	 	(1.5	)	 	 	(0.6	)	 	 	(1.7	)	
Loss before provision for (benefit from) income taxes	 	 	(44.1	)	 	 	(74.0	)	 	 	(44.6	)	 	 	(58.7	)	
Provision for (benefit from) income taxes	 	 	0.4	 	 	 	(0.3	)	 	 	0.3	 	 	 	(0.1	)	
Net loss	 	 	(44.5	)%	 	 	(73.7	)%	 	 	(44.9	)%	 	 	(58.6	)%	
______________
(2) Includes share-based compensation expense as follows:
 
 	 	Three Months Ended June 30,	 	 	Six Months Ended June 30,	 	
 	 	2015	 	 	2014	 	 	2015	 	 	2014	 	
Cost of revenue	 	 	2.3	%	 	 	3.4	%	 	 	2.2	%	 	 	2.0	%	
Research and development	 	 	9.2	 	 	 	14.1	 	 	 	9.4	 	 	 	8.2	 	
Sales and marketing	 	 	8.2	 	 	 	11.1	 	 	 	7.0	 	 	 	6.9	 	
General and administrative	 	 	8.1	 	 	 	8.6	 	 	 	7.4	 	 	 	6.4	 	
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Revenue
 
 	 	Three Months Ended June 30,	 	 	 	 	 	 	Six Months Ended June 30,	 	 	 	 	 	
 	 	2015	 	 	2014	 	 	% Change	 	 	2015	 	 	2014	 	 	% Change	 	
 	 	(In thousands, except percentages)	 	 	(In thousands, except percentages)	 	
Revenue	 	$	48,227	 	 	$	29,506	 	 	 	63	%	 	$	90,461	 	 	$	54,598	 	 	 	66	%	
Revenue increased $18.7 million, or 63%, in the three months ended June 30, 2015 compared to the same period in 2014. Of the total increase in revenue, $9.6 million, or 51%, was attributable to revenue from new customer accounts acquired from July 1, 2014 through June 30, 2015, net of churn and contraction, and $9.1 million, or 49%, was attributable to revenue from accounts existing on or before June 30, 2014, net of churn and contraction.  Revenue increased $35.9 million, or 66% in the six months ended June 30, 2015 compared to the same period in 2014 due to the addition of new customer accounts and the continued expansion of existing customer accounts.
Historically we had determined the acquisition date of a customer account based on the date when the account was established.  Starting in the quarter ended March 31, 2015, we adjusted the acquisition date of customer accounts to eliminate the effect of certain activities that we identify involving the transfer of agents from an existing customer account to a new customer account, or the split of an existing customer account into multiple customer accounts.  In addition, revenue from customer accounts that share common corporate information is treated as being generated from a single customer account.  The acquisition date of customer accounts that share common corporate information is determined using the establishment date of the earliest customer account.
Cost of Revenue and Gross Margin
 
 	 	Three Months Ended June 30,	 	 	 	 	 	 	Six Months Ended June 30,	 	 	 	 	 	
 	 	2015	 	 	2014	 	 	% Change	 	 	2015	 	 	2014	 	 	% Change	 	
 	 	(In thousands, except percentages)	 	 	(In thousands, except percentages)	 	
Cost or Revenue	 	$	16,162	 	 	$	11,731	 	 	 	38	%	 	$	30,452	 	 	$	20,726	 	 	 	47	%	
Gross Margin	 	 	66.5	%	 	 	60.2	%	 	 	 	 	 	 	66.3	%	 	 	62.0	%	 	 	 	 	
Cost of revenue increased $4.4 million, or 38%, and $9.7 million, or 47%, in the three months and six months ended June 30, 2015, respectively, compared to the same periods in 2014. The increases were primarily due to increased employee compensation-related costs of $1.2 million and $3.2 million driven by our headcount growth, increased depreciation expense and other costs associated with our self-managed colocation data centers of $0.9 million and $1.6 million, and increased amortization expense associated with capitalized internal-use software of $0.5 million and $1.3 million for the three and six months ended June 30, 2015, respectively, compared to the same periods in 2014.  The increases in depreciation expense and other costs associated with our self-managed colocation data centers were driven by our investments in building out and increasing capacity within our self-managed colocation data centers. The increases in amortization expense associated with capitalized internal-use software were due to our continued development of additional features and functionalities of our platform.  Further contributing to the increased cost of revenue was an increase in allocated shared costs of $0.4 million and $0.9 million for the three and six months ended June 30, 2015, respectively, compared to the same periods in 2014.
Our gross margin increased 6.3% and 4.3% for the three and six months ended June 30, 2015, respectively, compared to the same periods in 2014. The increases in gross margin were primarily due to a 3.8% and 2.4% decrease in employee-related compensation costs as a percentage of revenue for the three and six months ended June 30, 2015, respectively, as we were able to increase revenue with a more moderate increase in headcount.  Also contributing to our gross margin increase was a 1.3% decrease in hosting fees as a percentage of revenue for both the three and six months ended June 30, 2015, reflecting increased cost efficiency as we expanded operations in our self-managed colocation data centers.
Operating Expenses
Research and Development Expenses
 
 	 	Three Months Ended June 30,	 	 	 	 	 	 	Six Months Ended June 30,	 	 	 	 	 	
 	 	2015	 	 	2014	 	 	% Change	 	 	2015	 	 	2014	 	 	% Change	 	
 	 	(In thousands, except percentages)	 	 	(In thousands, except percentages)	 	
Research and Development	 	$	14,227	 	 	$	10,499	 	 	 	36	%	 	$	27,485	 	 	$	15,677	 	 	 	75	%	
23

Research and development expenses increased $ 3 . 7 million, or 36 %, and $1 1 . 8 million, or 7 5 %, in the three and six months ended June 30, 2015, respectively, compared to the same periods in 2014. The increases were primarily due to an increase of $ 3. 1 million and $10. 4 million in employee compensation-related costs, driven by an increase in our h eadcount year - over - yea r.
Sales and Marketing Expenses
 
 	 	Three Months Ended June 30,	 	 	 	 	 	 	Six Months Ended June 30,	 	 	 	 	 	
 	 	2015	 	 	2014	 	 	% Change	 	 	2015	 	 	2014	 	 	% Change	 	
 	 	(In thousands, except percentages)	 	 	(In thousands, except percentages)	 	
Sales and Marketing	 	$	27,242	 	 	$	20,339	 	 	 	34	%	 	$	50,645	 	 	$	34,626	 	 	 	46	%	
Sales and marketing expenses increased $6.9 million, or 34%, and $16.0 million, or 46%, in the three and six months ended June 30, 2015, respectively, compared to the same periods in 2014. The increases were primarily due to increased employee compensation-related costs of $3.5 million and $8.4 million, and increased marketing program costs of $2.2 million and $4.5 million for the three and six months ended June 30, 2015, respectively, compared to the same period in 2014.  The increases in employee compensation-related costs were driven by an increase in our headcount year-over-year.  The increases in marketing program costs were primarily driven by the increased use of search engine advertisements and display advertisements to promote our customer service platform.
General and Administrative Expenses
 
 	 	Three Months Ended June 30,	 	 	 	 	 	 	Six Months Ended June 30,	 	 	 	 	 	
 	 	2015	 	 	2014	 	 	% Change	 	 	2015	 	 	2014	 	 	% Change	 	
 	 	(In thousands, except percentages)	 	 	(In thousands, except percentages)	 	
General and Administrative	 	$	11,536	 	 	$	8,315	 	 	 	39	%	 	$	21,663	 	 	$	14,699	 	 	 	47	%	
General and administrative expenses increased $3.2 million, or 39%, and $7.0 million, or 47%, in the three and six months ended June 30, 2015, respectively, compared to the same periods in 2014. The increases were primarily due to increased employee compensation-related costs of $2.0 million and $4.8 million and professional and outside services costs of $0.3 million and $0.6 million for the three and six months ended June 30, 2015, respectively, compared to the same periods in 2014. The increases in employee compensation-related costs were driven by an increase in our headcount year-over-year. The increases in professional and outside services costs were attributable to higher fees for legal and accounting services, resulting from increased compliance costs as a public company, offset by $0.6 million of professional services fees incurred during the three months ended March 31, 2014 in connection with the acquisition of Zopim.
Credit Facility
Until its termination in June 2015, we had a credit facility with Silicon Valley Bank consisting of a $20.0 million revolving line of credit and a $10.0 million equipment line of credit.  In June 2014 we repaid all outstanding principal and accrued interest under the revolving line of credit.  On June 29, 2015 we repaid all outstanding principal and interest under the equipment line of credit and terminated the Silicon Valley Bank credit facility.        
Liquidity and Capital Resources
As of June 30, 2015, our principal sources of liquidity were cash, cash equivalents and marketable securities totaling $309.2 million, which were held for working capital purposes. Our cash equivalents and marketable securities are comprised of corporate bonds, money market funds, commercial paper, asset-backed securities, and U.S. treasury and agency securities.
The following table summarizes our cash flows for the periods indicated (in thousands):
 
 	 	Six Months Ended June 30,	 	
 	 	2015	 	 	2014	 	
Cash used in operating activities	 	$	(4,773	)	 	$	(5,088	)	
Cash used in investing activities	 	 	(12,847	)	 	 	(19,122	)	
Cash provided by financing activities	 	 	192,964	 	 	 	90,541	 	
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To date, we have financed our operations primarily through sales of equity securities. From our inception through June 30, 2015, we have received cash proceeds of $364.7 million from the sale of equity securities, net of issuance costs paid. We have also f inanced our operations through customer payments for subscription to our customer service platform and live chat software, and borrowings under our credit facility . We believe that our existing cash, cash equivalents, and marketable securities balance, tog ether with cash generated from operations will be sufficient to meet our working capital and capital expenditure requirements for at least the next 12 months.
 Our future capital requirements will depend on many factors including growth in our customer accounts and continued customer expansion, the timing and extent of spending to support product development efforts, the expansion of sales and marketing activities, ongoing investments in our platform infrastructure, and the introduction of new and enhanced products, features and functionality. We may in the future enter into arrangements to acquire or invest in complementary businesses, services and technologies and intellectual property rights. We may be required to seek additional equity or debt financing in order to meet these future capital requirements. In the event that additional financing is required from outside sources, we may not be able to raise it on terms acceptable to us, or at all. If we are unable to raise additional capital when desired, our business, results of operations and financial condition would be adversely affected.
In March 2014, we completed the acquisition of Zopim. The purchase price of approximately $15.8 million ($4.9 million of cash and $10.9 million of our common stock) includes $1.1 million of cash and $2.4 million of common stock consideration that was held back between 12 and 18 months as partial security for standard indemnification obligations. In the three months ended March 31, 2015, we released $0.5 million of cash and $1.2 million of common stock consideration that was held back, based on the fair value of our common stock on the date of the acquisition.  In connection with the acquisition of Zopim, we established a retention plan pursuant to which we will pay up to $13.9 million in cash and equity consideration over two and three years, respectively, to Zopim employees in connection with their continued employment.  In the three months ended March 31, 2015, RSUs for 0.3 million shares of our common stock became vested pursuant to the terms of the retention plan, and we paid the first installment of the cash retention bonus in the amount of $1.5 million.
Prior to the expiration of the lock-up agreements in connection with our IPO, we had elected to net share settle our RSUs by withholding shares and remitting income tax on behalf of the applicable employees. Upon the expiration of the lock-up agreements in November 2014, we generally began requiring that employees sell a portion of the shares that they receive upon the vesting of RSUs in order to cover any required withholding taxes (sell-to-cover). This sell-to-cover approach reduced our cash outflows.
Operating Activities
Our largest source of operating cash inflows is cash collections from our customers for subscription services. Our primary uses of cash from operating activities are for employee-related expenditures, marketing programs, and leased facilities.
Net cash used in operating activities in the six months ended June 30, 2015 was $4.8 million, reflecting our net loss of $40.7 million, adjusted by non-cash charges including share-based compensation expense of $23.6 million, depreciation and amortization of $8.8 million, and changes in our operating assets and liabilities. The changes in our operating assets and liabilities resulted in a net source of cash of $3.2 million, primarily attributable to an increase of $13.3 million in deferred revenue due to the growth in sales of our subscription services and the timing of customer billings.  This source of cash was partially offset by an increase of $3.4 million in accounts receivable due to the growth of our business and timing of customer billings, an increase of $3.3 million in prepaid expenses and other current assets driven by prepaid insurance premiums and other business expenses, and a decrease of $2.3 million in accrued compensation and related benefits mainly due to a one-time payment made in the three months ended March 31, 2015 to our U.S. salaried employees for accrued paid time-off as we changed our paid-time-off policy, as well as the payout of retention bonus pursuant to the retention plan established in connection with the acquisition of Zopim.  Other use of cash included an increase of $1.4 million in other assets and liabilities primarily due to a deposit made on facility leases.
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Net cash used in operating activities in the six months ended June 30, 2014 was $5.1 million, reflecting our net loss of $32.0 m illion, adjusted by non-cash charges including share-based compensation expense of $12.8 million, depreciation and amortization of $4.5 million, and changes in our operating assets and liabilities . The changes in our operating assets and liabilities were p rimarily attributable to an increase in deferred revenue of $9.6 million due to the growth in sales of our subscription services and the timing of customer billings , an increase in accrued compensation and related benefits of $3.4 million due to the increase in headcount and timing of the last payroll of the three month period ended June 30, 2014, an increase of $0.9 million in accrued liabilities due to timing of payments and a higher level of expenses consistent with the overall growth of our business, and an increase in other assets and liabilities of $0.5 million due to increased deferred rent related to our newly leased office facilities. These sources of cash flow were partially offset by an increase in prepaid expense s and other current assets of $2.6 million primarily due to increases in prepaid insurance premiums and prepaid subscriptions for software used in our operations.  The sources of cash flow were also offset by an increase in accounts receivable of $1.9 mill ion due to timing of customer billing.
Investing Activities
Net cash used in investing activities in the six months ended June 30, 2015 of $12.8 million was primarily attributable to purchases of property and equipment of $7.4 million mainly associated with our hosting equipment to build out our self-managed colocation data centers, capitalized software development costs of $2.4 million associated with the development of additional features and functionality of our platform, purchases of marketable securities of $2.5 million, net of sales and maturities, and a payment of $0.5 million in purchase consideration held back in connection with the acquisition of Zopim.
Net cash used in investing activities in the six months ended June 30, 2014 of $19.1 million was primarily attributable to purchases of property and equipment of $13.1 million associated with our newly leased office facilities and hosting equipment to build out our self-managed colocation data centers, capitalized software development costs of $3.9 million associated with the development of additional features and functionality of our platform, and payments of $1.9 million for the acquisition of Zopim, net of cash acquired.
Financing Activities
Net cash provided by financing activities in the six months ended June 30, 2015 of $193.0 million was primarily attributable to proceeds from the follow-on public offering, net of issuance costs, of $190.1 million, proceeds from exercise of stock options of $5.0 million, and proceeds from issuance of common stock from employee equity plans of $4.9 million, partially offset by repayment of the outstanding balance under our credit facility of $7.0 million in connection with the termination of our credit facility with Silicon Valley Bank on June 29, 2015.
During the six months ended June 30, 2014, cash provided by financing activities of $90.5 million was primarily attributable to proceeds from the IPO, net of issuance costs, of $104.4 million, borrowings under our credit facility of $3.9 million and proceeds from exercise of stock options of $3.4 million, partially offset by repayment of the outstanding balance under our revolving line of credit of $20.0 million, and payments for withholding taxes related to the net share settlement of our equity awards of $1.0 million
Critical Accounting Polices and Estimates
We prepare our condensed consolidated financial statements in accordance with GAAP. In the preparation of these condensed consolidated financial statements, we are required to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenue, costs and expenses, and related disclosures. To the extent that there are material differences between these estimates and actual results, our financial condition or results of operations would be affected. We base our estimates on past experience and other assumptions that we believe are reasonable under the circumstances, and we evaluate these estimates on an ongoing basis. We refer to accounting estimates of this type as critical accounting policies and estimates.
There have been no significant changes in our critical accounting policies and estimates during the six months ended June 30, 2015 as compared to the critical accounting policies and estimates disclosed in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” included in our Annual Report on Form 10-K filed with the SEC in February 2015.
Recently Issued and Adopted Accounting Pronouncements
In April 2015, the FASB issued ASU 2015-05 “Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement ”, which amended the existing accounting standards for intangible assets. The amendments provide explicit guidance to customers in determining the accounting for fees paid in a cloud computing arrangement, wherein the arrangements that do not convey a software license to the customer are accounted for as service contracts. We plan to adopt this guidance in our first quarter of 2016. The adoption of this new standard is not expected to have a material impact on our financial statements.
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In April 2015, the FASB issued ASU 2015-03 “Simplifying the Presentation of Debt Issuance Costs” , which simplifies the presentation of debt issuance costs by requiring that debt issuance costs be presented in the balance sheet as a direct deduction from the carrying amount of the debt liability, consistent with discounts or premiums. We plan to adopt this guidance in the first quarter of 2016 . The adoption of this new standard is not expected to have a material impact on our financial statements .
In May 2014, the FASB issued ASU 2014-09 regarding ASC Topic 606 “ Revenue from Contracts with Customers .” This standard provides principles for recognizing revenue to which an entity expects to be entitled for the transfer of promised goods or services to customers. It is expected to be effective for our fiscal year beginning January 1, 2018. Early adoption is not permitted.  We are currently evaluating the accounting, transition and disclosure requirements of the standard and cannot currently estimate the financial statement impact of adoption.
Contractual Obligations and Other Commitments
Except as set forth in Note 7 to our unaudited condensed consolidated financial statements included elsewhere in this Quarterly Report on Form 10-Q, there were no material changes in our commitments under contractual obligations, as disclosed in the Company’s audited consolidated financial statements for the year ended December 31, 2014.
Our principal commitments consist of obligations under our credit facility, operating leases for office space, and contractual commitments for hosting and other support services.
Off-Balance Sheet Arrangements
Through June 30, 2015, we did not have any relationships with unconsolidated organizations or financial partnerships, such as structured finance or special purpose entities that would have been established for the purpose of facilitating off-balance sheet arrangements or other contractually narrow or limited purposes.
 
 Item 3. Qualitative and Quantitative Disclosures About Market Risk
Foreign Currency Exchange Risk
We conduct transactions, particularly intercompany transactions, in foreign currencies, primarily the British Pound Sterling, Euro, Australian Dollar, Danish Krone, Singapore Dollar, Japanese Yen, Philippine peso, and Brazilian Real. Except for our Singapore subsidiary, our international subsidiaries maintain certain current asset and current liability balances that are denominated in currencies other than the functional currencies of these entities, which is the U.S. dollar. Our Singapore subsidiary’s functional currency is the Singapore Dollar. Changes in the value of foreign currencies relative to the U.S. dollar can affect our revenue and results of operations due to transactional and translational remeasurement that is reflected in our earnings. While we have primarily transacted with customers in the U.S. dollar, we have also historically transacted in foreign currencies for subscriptions to our customer service platform and expect to significantly expand the number of transactions with customers that are denominated in foreign currencies in the near future.
Foreign currency gains and losses were not significant for each of the three months ended June 30, 2015 and 2014. While we have not engaged in hedging of our foreign currency transactions to date, we are currently evaluating the costs and benefits of initiating such a program and may, in the future, hedge selected significant transactions denominated in currencies other than the U.S. dollar.
Interest Rate Sensitivity
We had cash, cash equivalents and marketable securities totaling $309.2 million at June 30, 2015, of which $72.9 million was invested in corporate securities, money market funds, asset-backed securities, and U.S. treasury and agency securities. The cash and cash equivalents are held for working capital purposes. Our investments are made for capital preservation purposes. We do not enter into investments for trading or speculative purposes.
Our cash equivalents and our portfolio of marketable securities are subject to market risk due to changes in interest rates. Fixed rate securities may have their market value adversely affected due to a rise in interest rates. Due in part to these factors, our future investment income may fall short of our expectations due to changes in interest rates or we may suffer losses in principal if we are forced to sell securities that decline in market value due to changes in interest rates. However because we classify our debt securities as “available for sale,” no gains or losses are recognized due to changes in interest rates unless such securities are sold prior to maturity or declines in fair value are determined to be other-than-temporary.
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As of June 30, 2015, we do not believe that an increase or decrease in interest rates of ten percent (10%) would have a material effect on the value of our cash equivalents and portfolio of marketa ble securities. Fluctuations in the value of our cash equivalents and portfolio of marketable securities caused by a change in interest rates (gains or losses on the carrying value) are recorded in other comprehensive income, and are realized only if we se ll the underlying securities prior to maturity.
 
 Item 4. Controls and Procedures
Evaluation of Disclosure Controls and Procedures
Our management, with the participation of our Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of our disclosure controls and procedures (as defined in Rules 13a- 15(e) and 15d- 15(e) under the Securities Exchange Act of 1934, as amended, or the Exchange Act, as of the end of the period covered by this Quarterly Report on Form 10-Q. In designing and evaluating our disclosure controls and procedures, management recognizes that any disclosure controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives. In addition, the design of disclosure controls and procedures must reflect the fact that there are resource constraints and that management is required to apply its judgment in evaluating the benefits of possible controls and procedures relative to their costs. Based on management’s evaluation as of the end of the period covered by this Quarterly Report on Form 10-Q, our principal executive officer and principal financial officer have concluded that as of such date, our disclosure controls and procedures were effective to provide reasonable assurance that information required to be disclosed by us in the reports that we file or submit under the Exchange Act is recorded, processed, summarized, and reported within the time periods specified in the SEC's rules and forms and to provide reasonable assurance that such information is accumulated and communicated to our management, including our principal executive officer and principal financial officer, as appropriate, to allow timely decisions regarding required disclosures.
Changes in Internal Control over Financial Reporting
There were no changes in our internal control over financial reporting during our most recent fiscal quarter that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

PART II — OTHER INFORMATION
 
 Item 1. Legal Proceedings
From time to time, we may be subject to legal proceedings, claims, investigations, and government inquires in the ordinary course of business. We have received, and may in the future continue to receive, claims from third parties asserting, among other things, claims related to the infringement of their intellectual property rights, defamation, privacy, and contractual rights. Legal risk is enhanced in certain jurisdictions outside the United States where our protection from liability for content added to our customer service platform by third parties may be unclear and where we may be less protected under local laws than we are in the United States. Future litigation may be necessary to defend ourselves, our partners and our customers by determining the scope, enforceability, and validity of third-party proprietary rights, or to establish our proprietary rights. The results of any current or future litigation cannot be predicted with certainty, and regardless of the outcome, litigation can have an adverse impact on us because of defense and settlement costs, diversion of management resources, and other factors.
 
 Item 1A. Risk Factors
A description of the risks and uncertainties associated with our business is set forth below. You should carefully consider such risks and uncertainties, together with the other information contained in this report, and in our other public filings. If any of such risks and uncertainties actually occurs, our business, financial condition or operating results could differ materially from the plans, projections and other forward-looking statements included in the section titled “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and elsewhere in this report and in our other public filings. In addition, if any of the following risks and uncertainties, or if any other risks and uncertainties, actually occurs, our business, financial condition or operating results could be harmed substantially, which could cause the market price of our stock to decline, perhaps significantly.

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Risks Related to Our Business
We derive, and expect to continue to derive, substantially all of our revenue and cash flows from our customer service platform. If we fail to adapt this platform to changing market dynamics and customer preferences or to achieve increased market acceptance of our customer service platform, our business, results of operations, financial condition, and growth prospects would be harmed.
We derive, and expect to continue to derive, substantially all of our revenue and cash flows from sales of subscriptions to our customer service platform. As such, the market acceptance of this platform is critical to our success. Demand for our customer service platform is affected by a number of factors, many of which are beyond our control, such as continued market acceptance of our platform by customers for existing and new use cases, the timing of development and release of new products, features, and functionality introduced by our competitors, technological change, and growth or contraction in our addressable market. We expect that an increasing focus on customer satisfaction and the growth of various communications channels will profoundly impact the market for customer support software and blur distinctions between traditionally separate systems for customer support, marketing automation, and customer relationship management, enabling new competitors to emerge. If we are unable to meet customer demands to manage customer experiences through flexible solutions designed to address all these needs or otherwise achieve more widespread market acceptance of our customer service platform, our business, results of operations, financial condition, and growth prospects will be adversely affected.
We have a history of losses and we expect our revenue growth rate to decline. As our costs increase, we may not be able to generate sufficient revenue to achieve and sustain our profitability.
We have incurred net losses in each year since our inception, including net losses of $21.5 million and $21.7 million for the three months ended June 30, 2015 and 2014, respectively, and net losses of $40.7 million and $32.0 million for the six months ended June 30, 2015 and 2014, respectively. We had an accumulated deficit of $172.5 million at June 30, 2015. For the three months ended June 30, 2015 and 2014, our revenue was $48.3 million and $29.5 million, respectively, representing a 64% growth rate. For the six months ended June 30, 2015 and 2014, our revenue was $90.5 million and $54.6 million, respectively, representing a 66% growth rate. We expect that our revenue growth rate will decline over time. We may not be able to generate sufficient revenue to achieve and sustain profitability as we also expect our costs to increase in future periods. We expect to continue to expend substantial financial and other resources on:
●	development of our customer service platform, including investments in our research and development team, the development or acquisition of new products, features and functionality, and improvements to the scalability, availability, and security of our customer service platform;	
●	our technology infrastructure, including expansion of our activities in third-party data centers in which we lease space and where we manage our own hosting and network equipment, or self-managed colocation data centers, enhancements to our network operations and infrastructure, and hiring of additional employees for our operations team;	
●	sales and marketing, including a significant expansion of our direct sales organization;	
●	additional international expansion in an effort to increase our customer base and sales; and	
●	general administration, including legal, accounting, and other expenses related to being a public company.	
These investments may not result in increased revenue or growth of our business. If we fail to continue to grow our revenue, our operating results, and business would be harmed.
We have a limited operating history, which makes it difficult to evaluate our prospects and future operating results.
We incorporated and first launched our customer service platform in 2007. As a result of our limited operating history, our ability to forecast our future operating results is limited and subject to a number of uncertainties, including our ability to plan for and model future growth. Our historical revenue growth has been inconsistent, and should not be considered indicative of our future performance. Further, in future periods, our revenue could decline for a number of reasons, including any reduction in demand for our customer service platform or live chat software, increased competition, contraction of our overall market, or our failure, for any reason, to capitalize on growth opportunities. We have encountered and will encounter risks and uncertainties frequently experienced by growing companies in rapidly changing industries, such as the risks and uncertainties described herein. If our assumptions regarding these risks and uncertainties, which we use to plan our business, are incorrect or change, or if we do not address these risks successfully, our operating and financial results could differ materially from our expectations, and our business could suffer.
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If we are not able to develop enhancements to our customer service platfo rm or live chat software that achieve market acceptance and that keep pace with technological developments, our business would be harmed.
Our ability to attract new customers and increase revenue from existing customers depends in large part on our ability to enhance and improve our customer service platform and live chat software and to introduce new products and services. In order to grow our business, we must develop products and services that reflect the changing nature of customer service, and expand beyond customer service to other areas of managing relationships with customers. The success of any enhancement to our customer service platform or live chat software depends on several factors, including timely completion, adequate quality testing, and market acceptance. Any new product or service that we develop may not be introduced in a timely or cost-effective manner, may contain defects, or may not achieve the market acceptance necessary to generate sufficient revenue. If we are unable to successfully develop new products or services, enhance our existing customer service platform and live chat software to meet customer requirements or otherwise gain market acceptance, our business and operating results will be harmed.
Because our customer service platform and live chat software are available over the Internet, we need to continuously modify and enhance them to keep pace with changes in Internet-related hardware, software, communications, and database technologies and standards. If we are unable to respond in a timely and cost-effective manner to these rapid technological developments and changes in standards, our customer service platform and live chat software may become less marketable, less competitive, or obsolete, and our operating results will be harmed.
If we fail to effectively manage our growth and organizational change in a manner that preserves the key aspects of our culture, our business and operating results could be harmed.
We have experienced and may continue to experience rapid growth and organizational change, which has placed, and may continue to place, significant demands on our management, operational, and financial resources. For example, our headcount has grown from 712 employees as of June 30, 2014 to 1,017 employees on June 30, 2015. In addition, we have established subsidiaries in Denmark, the United Kingdom, Australia, Ireland, Japan, the Philippines, Brazil, and Germany since our inception in 2007, and, as a result of the acquisition of Zopim, we also have a subsidiary in Singapore. We may continue to expand our international operations into other countries in the future. We have also experienced significant growth in the number of customers, end users, transactions, and data that our customer service platform and our associated hosting infrastructure support. Finally, our organizational structure is becoming more complex and we may need to scale and adapt our operational, financial, and management controls, as well as our reporting systems and procedures to manage this complexity. We will require significant capital expenditures and the allocation of valuable management resources to grow and change in these areas without undermining our corporate culture of rapid innovation, simplicity in design, and attention to customer satisfaction that has been critical to our growth so far. If we fail to manage our anticipated growth and change in a manner that preserves the key aspects of our culture, the quality of our products and services may suffer, which could negatively affect our brand and reputation and harm our ability to retain and attract customers.
The market in which we participate is intensely competitive, and if we do not compete effectively, our operating results could be harmed.
The market for customer service solutions is fragmented, rapidly evolving, and highly competitive, with relatively low barriers to entry. Among the small to medium sized organizations that make up a large proportion of our customers, we often compete with general use computer applications and other tools, which these organizations use to provide support and which can be deployed for little or no cost. These include shared accounts for email communication, phone banks for voice communication, and pen and paper, text editors, and spreadsheets for tracking and management. With respect to larger organizations and enterprises seeking to deploy a customer service software system, we have many competitors that are larger and which have greater name recognition, much longer operating histories, more established customer relationships, larger marketing budgets, and significantly greater resources than we do.
Our competitors may be able to respond more quickly and effectively than we can to new or changing opportunities, technologies, standards, or customer requirements. With the introduction of new technologies, the evolution of our platform, and new market entrants, we expect competition to intensify in the future. Pricing pressures and increased competition generally could result in reduced sales, reduced margins, losses, or the failure of our platform to achieve or maintain more widespread market acceptance, any of which could harm our business.
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We face competition from in-house software systems, large integrated s ystems vendors, and smaller companies offering alternative SaaS applications. Our competitors vary in size and in the breadth and scope of the products and services they offer. We face substantial competition from salesforce.com, Inc., Oracle Corporation, Verint Systems, Inc., and Microsoft Corporation, each of which can bundle competing products and services with other software offerings, or offer them at a low price as part of a larger sale. In addition, we compete with a number of other SaaS providers wi th focused customer support applications, including desk.com (a salesforce.com service), Kayako Helpdesk Pvt. Ltd., Freshdesk, Inc., Brightwurks, Inc. (Help Scout), SupportBee, Inc., and Tenmiles Technologies Pvt. Ltd. (Happy Fox), many of which offer free or significantly discounted prices for their services. For organizations seeking software to support employee service and other internal use cases, we compete with companies such as ServiceNow, Inc., BMC Software, Inc., Atlassian Pty Ltd, and Hewlett-Pack ard Company.  We also compete with a number of providers of live chat software, including Live Person, Inc, BoldChat (a LogMeIn, Inc. service), Velaro, Inc. Snap Engage, LLC, Habla, Inc. (Olark), and LiveChat, Inc.  Further, other established SaaS provider s not currently focused on customer support or live chat software may expand their services to compete with us. Many of our current and potential competitors have established marketing relationships, access to larger customer bases, pre-existing customer r elationships, and major distribution agreements with consultants, system integrators, and resellers. Additionally, some potential customers, particularly large organizations, have elected, and may in the future elect, to develop their own internal customer support software system. Certain of our competitors have partnered with, or have acquired, and may in the future partner with or acquire, other competitors to offer services, leveraging their collective competitive positions, which makes, or would make, i t more difficult to compete with them. For all of these reasons, we may not be able to compete successfully against our current and future competitors, which would harm our business.
If the market for SaaS business software applications develops more slowly than we expect or declines, our business would be adversely affected.
The market for SaaS business software applications is less mature than the market for on-premise business software applications, and the adoption rate of SaaS business software applications may be slower among subscribers in industries with heightened data security interests or business practices requiring highly customizable application software. Our success will depend to a substantial extent on the widespread adoption of SaaS business applications in general, and of SaaS customer service applications in particular. Many organizations have invested substantial personnel and financial resources to integrate traditional on-premise business software applications into their businesses, and therefore may be reluctant or unwilling to migrate to SaaS applications. It is difficult to predict customer adoption rates and demand for our customer service platform and live chat software, the future growth rate and size of the SaaS business applications market or the entry of competitive applications. The expansion of the SaaS business applications market depends on a number of factors, including the cost, performance, and perceived value associated with SaaS, as well as the ability of SaaS providers to address data security and privacy concerns. Additionally, government agencies have adopted, or may adopt, laws and regulations regarding the collection, use, and transfer of personal information obtained from consumers and other individuals, or may seek to access information on our platform, either of which may reduce the overall demand for our platform. If we or other SaaS providers experience data security incidents, loss of customer data, disruptions in delivery, or other problems, the market for SaaS business applications, including our customer service platform and live chat software, may be negatively affected. If SaaS business applications do not continue to achieve market acceptance, or there is a reduction in demand for SaaS business applications caused by a lack of customer acceptance, technological challenges, weakening economic conditions, data security or privacy concerns, governmental regulation, competing technologies and products, or decreases in information technology spending, it would result in decreased revenue and our business would be adversely affected.
If we are not successful in selling our live chat software as a standalone service or more fully integrating our Zopim live chat software with our customer service platform, our business could be harmed.
As a result of the acquisition of Zopim, we now sell our live chat software as a standalone service. Our live chat software can also be integrated with our customer service platform as a means to enable live chat functionality for agents and this integration is now the primary means by which we offer chat functionality on our customer service platform.
We have limited experience selling separate products in general or live chat software in particular, and as a result, our live chat software may not gain acceptance with our customers and potential customers.
Our reliance on our live chat software as a primary means of enabling chat functionality in connection with our customer service platform may not be successful. In particular, we currently charge a separate subscription fee per chat-enabled agent. While we believe our live chat software represents a substantial upgrade in functionality over the chat functionality historically embedded in our customer service platform, our current or prospective customers may resist paying for functionality that, to some degree, was previously available to all agents under a single subscription to our customer service platform. If our customers do not purchase our live chat software as a standalone service or as integrated with our customer service platform, our business, revenue, and operating results could be harmed.
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If our network or computer systems are breached or unauthorized access to customer data is otherwise obtained, our customer service platform and live chat software may be perceived as insecure, we may lose existing customers or fail to attract new customers, and we may incur significant liabilities.
Use of our customer service platform and live chat software involve the storage, transmission, and processing of our customers’ proprietary data, including personal or identifying information regarding their customers or employees. Unauthorized access to or security breaches of our customer service platform or live chat software could result in the loss of data, loss of intellectual property or trade secrets, loss of business, severe reputational damage adversely affecting customer or investor confidence, regulatory investigations and orders, litigation, indemnity obligations, damages for contract breach, penalties for violation of applicable laws or regulations, or contractual obligations, and significant costs for remediation that may include liability for stolen assets or information and repair of system damage that may have been caused, incentives offered to customers or other business partners in an effort to maintain business relationships after a breach, and other liabilities.  Notifications related to a security breach regarding or pertaining to any of such service providers could impact our reputation, harm customer confidence, hurt our sales and expansion into new markets, or cause us to lose existing customers. We have incurred and expect to incur significant expenses to prevent, investigate, and remediate, security breaches and vulnerabilities, including deploying additional personnel and protection technologies, training employees, and engaging third-party experts and consultants. Our errors and omissions insurance coverage covering certain security and privacy damages and claim expenses may not be sufficient to compensate for all liability.
We have experienced significant breaches and identified significant vulnerabilities of our security measures and the security measures deployed by third-party vendors upon which we rely and our customer service platform and live chat software are at risk for future breaches as a result of third-party action, employee, vendor, or contractor error, malfeasance, or other factors. For example, in February 2013, we experienced a security breach involving unauthorized access to three of our customers’ accounts and personal information of consumers maintained in those customer accounts.
We have only been offering our live chat software since the completion of our acquisition of Zopim in March 2014.  The systems, networks, personnel, equipment, and vendors utilized to provide our live chat software have historically been separate from those utilized in connection with our customer service platform and have not been subject to the same security reviews and assessments as those used to provide our customer service platform. Our failure to complete these assessments and implement improvements to the security measures deployed to protect our live chat software in a timely manner could increase our risk of a security breach with respect to this service, which would harm our business as a whole.
Because the techniques used and vulnerabilities exploited to obtain unauthorized access or to sabotage systems change frequently and generally are not identified until they are launched against a target, we may be unable to anticipate these techniques or vulnerabilities or to implement adequate preventative measures. We may also experience security breaches that may remain undetected for an extended period.
Because data security is a critical competitive factor in our industry, we make numerous statements in our privacy policies, terms of service and data processing agreements, through our certifications to privacy standards, and in our marketing materials, providing assurances about the security of our customer service platform and live chat software including detailed descriptions of security measures we employ. Should any of these statements be untrue or become untrue, even through circumstances beyond our reasonable control, we may face claims of misrepresentation or deceptiveness by the U.S. Federal Trade Commission, state and foreign regulators, and private litigants.
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Interruptions or performance problems associated with our technology and infrastructure may adversel y affect our business and operating results.
Our continued growth depends in part on the ability of our existing and potential customers to access our customer service platform and live chat software at any time and within an acceptable amount of time. Our customer service platform and live chat software are proprietary, and we rely on the expertise of members of our engineering, operations, and software development teams for their continued performance. We have experienced, and may in the future experience, disruptions, outages, and other performance problems due to a variety of factors, including infrastructure changes, introductions of new functionality, human or software errors, capacity constraints due to an overwhelming number of users accessing our customer service platform or live chat software simultaneously, distributed denial of service attacks, or other security related incidents. In some instances, we may not be able to identify the cause or causes of these performance problems within an acceptable period of time. It may become increasingly difficult to maintain and improve our performance, especially during peak usage times and as our customer service platform and live chat software become more complex and our user traffic increases. If our customer service platform or live chat software is unavailable or if our users are unable to access our customer service platform or live chat software within a reasonable amount of time or at all, our business would be negatively affected. In addition, our infrastructure does not currently support the real-time mirroring of data. Therefore, in the event of any of the factors described above, or certain other failures of our infrastructure, customer data may be permanently lost. Moreover, some of our customer agreements and certain subscription plans include performance guarantees and service level standards that obligate us to provide credits or termination rights in the event of a significant disruption in our platform. To the extent that we do not effectively address capacity constraints, upgrade our systems as needed, and continually develop our technology and network architecture to accommodate actual and anticipated changes in technology, our business and operating results may be adversely affected.
Real or perceived errors, failures, or bugs in our customer service platform or live chat software could adversely affect our operating results and growth prospects.
Because our customer service platform and live chat software are complex, undetected errors, failures, vulnerabilities, or bugs may occur, especially when updates are deployed. Our customer service platform and live chat software are often used in connection with large-scale computing environments with different operating systems, system management software, equipment, and networking configurations, which may cause errors or failures of our customer service platform, our live chat software, or other aspects of the computing environment into which they are deployed. In addition, deployment of our customer service platform or live chat software into complicated, large-scale computing environments may expose undetected errors, failures, vulnerabilities, or bugs in our customer service platform or live chat software. We have discovered and expect will continue to discover software errors, failures, vulnerabilities, and bugs in our customer service platform and live chat software, some of which have or may only be discovered and remediated after deployment to customers. Real or perceived errors, failures, vulnerabilities, or bugs in our customer service platform or live chat software could result in negative publicity, loss of or delay in market acceptance of our customer service platform or live chat software, loss of competitive position, or claims by customers for losses sustained by them. In such an event, we may be required, or may choose, for customer relations or other reasons, to expend additional resources in order to help correct the problem.
Incorrect or improper implementation or use of our customer service platform or live chat software could result in customer dissatisfaction and negatively affect our business, results of operations, financial condition, and growth prospects.
Our customer service platform and live chat software are deployed in a wide variety of technology environments and into a broad range of complex workflows. Increasingly, our customer service platform and live chat software have been integrated into large-scale, complex technology environments, and specialized use cases, and we believe our future success will depend on our ability to increase use of our customer service platform and live chat software in such deployments. We often assist our customers in implementing our customer service platform and live chat software, but many customers attempt to implement even complex deployments themselves. If we or our customers are unable to implement our customer service platform or live chat software successfully, or unable to do so in a timely manner, customer perceptions of our customer service platform, our live chat software, and company may be impaired, our reputation and brand may suffer, and customers may choose not to renew or expand the use of our customer service platform or live chat software.
Our customers and third-party partners may need training in the proper use of our customer service platform or live chat software to maximize its potential. If our customer service platform or live chat software is not implemented or used correctly or as intended, inadequate performance may result. Because our customers rely on our customer service platform to manage a wide range of operations, the incorrect or improper implementation or use of our customer service platform, our failure to train customers on how to efficiently and effectively use our customer service platform, or our failure to provide adequate product support to our customers, may result in negative publicity or legal claims against us. Also, as we continue to expand our customer base, any failure by us to properly provide these services will likely result in lost opportunities for additional subscriptions to our customer service platform and live chat software.
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Any failure to offer high-quality product support may adversely affect our relationships with our customers and our financial results.
In deploying and using our customer service platform and live chat software, our customers depend on our product support team to resolve complex technical and operational issues. We may be unable to respond quickly enough to accommodate short-term increases in customer demand for product support. We also may be unable to modify the nature, scope, and delivery of our product support to compete with changes in product support services provided by our competitors. Increased customer demand for product support, without corresponding revenue, could increase costs and adversely affect our operating results. Our sales are highly dependent on our business reputation and on positive recommendations from our existing customers. Any failure to maintain high-quality product support, or a market perception that we do not maintain high-quality product support, could adversely affect our reputation, our ability to sell our customer service platform and live chat software to existing and prospective customers, our business, operating results, and financial position.
We depend on our executive officers and other key employees and the loss of one or more of these employees or an inability to attract and retain highly skilled employees could adversely affect our business.
Our success depends largely upon the continued services of our executive officers and other key employees. We rely on our leadership team in the areas of research and development, operations, security, marketing, sales, support, general and administrative functions, and on individual contributors in our research and development and operations. From time to time, there may be changes in our executive management team resulting from the hiring or departure of executives, which could disrupt our business. We do not have employment agreements with our executive officers or other key personnel that require them to continue to work for us for any specified period and, therefore, they could terminate their employment with us at any time. The loss of one or more of our executive officers, especially our Chief Executive Officer, or key employees could have an adverse effect on our business.
In addition, to execute our growth plan, we must attract and retain highly qualified personnel. Competition for these personnel in the San Francisco Bay Area, where our headquarters is located, and in other locations where we maintain offices, is intense, especially for engineers experienced in designing and developing software and SaaS applications and experienced sales professionals. We have, from time to time experienced, and we expect to continue to experience, difficulty in hiring and retaining employees with appropriate qualifications. Many of the companies with which we compete for experienced personnel have greater resources than we have. If we hire employees from competitors or other companies, their former employers may attempt to assert that these employees or we have breached their legal obligations, resulting in a diversion of our time and resources. In addition, job candidates and existing employees often consider the value of the equity awards they receive in connection with their employment. If the perceived value of our equity awards declines, it may adversely affect our ability to recruit and retain highly skilled employees. If we fail to attract new personnel or fail to retain and motivate our current personnel, our business and future growth prospects could be adversely affected.
We are highly dependent upon free trials of our customer service platform and live chat software and other inbound lead generation strategies to drive our sales and revenue. If these strategies fail to continue to generate sales opportunities or do not convert into paying customers, our business and results of operations would be harmed.
We are highly dependent upon our marketing strategy of offering free trials of our customer service platform and our live chat software and other inbound lead generation strategies to generate sales opportunities. These strategies may not be successful in continuing to generate sufficient sales opportunities necessary to increase our revenue. Many early users never convert from the trial version to a paid version of our customer service platform or live chat software. Further, we often depend on individuals within an organization who initiate the trial versions of our customer service platform and live chat software being able to convince decision makers within their organization to convert to a paid version. Many of these organizations have complex and multi-layered purchasing requirements. To the extent that these users do not become, or are unable to convince others to become, paying customers, we will not realize the intended benefits of this marketing strategy and our ability to grow our revenue will be adversely affected.
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We face a number of risks in our strategy to increasingly target larger organizations for sales of our customer service platform and live chat software and, i f we do not manage these efforts effectively, our business and results of operations could be adversely affected.
As we target more of our sales efforts to larger organizations, we expect to incur higher costs and longer sales cycles and we may be less effective at predicting when we will complete these sales. In this market segment, the decision to subscribe to our customer service platform or live chat software may require the approval of more technical personnel and management levels within a potential customer’s organization than we have historically encountered, and if so, these types of sales would require us to invest more time educating these potential customers. In addition, larger organizations may demand more features and integration services. We have limited experience in developing and managing sales channels and distribution arrangements for larger organizations. As a result of these factors, these sales opportunities may require us to devote greater research and development, sales, product support, and professional services resources to individual customers, resulting in increased costs and reduced profitability, and would likely lengthen our typical sales cycle, which could strain our resources. Additionally, we may be required to increase our investments in our field sales and marketing efforts in order to target these larger organizations, increasing the costs associated with sales. Moreover, these transactions may require us to delay recognizing the associated revenue we derive from these customers until any technical or implementation requirements have been met, and larger customers may demand discounts to the subscription prices they pay for our customer service platform or live chat software. Furthermore, because we have limited experience selling to larger organizations, our investment in marketing our customer service platform to these potential customers may not be successful, which could harm our results of operations and our overall ability to grow our customer base. Following sales to larger organizations, we may have fewer opportunities to expand usage of our customer service platform or sell additional functionality, and we may experience increased subscription terminations as compared to our experience with smaller organizations, any of which could harm our results of operations.
Failure to effectively expand our sales capabilities could harm our ability to increase our customer base and achieve broader market acceptance of our platform.
Increasing our customer base and achieving broader market acceptance of our customer service platform and live chat software will depend, to a significant extent, on our ability to effectively expand our sales and marketing operations and activities. We are substantially dependent on our online marketing efforts and on our direct sales force to obtain new customers. From June 30, 2014 to June 30, 2015, our sales and marketing organization increased from 240 to 356 employees. We plan to continue to expand our direct sales force both domestically and internationally and to increase the proportion of our sales professionals that have experience in selling to larger organizations. There is significant competition for experienced sales and marketing professionals with the skills and technical knowledge that we require. Our ability to achieve significant revenue growth in the future will depend, in part, on our success in recruiting, training, and retaining a sufficient number of experienced sales and marketing professionals. New hires require significant training and time before they achieve full productivity, particularly in new sales segments and territories. Our recent hires and planned hires may not become as productive as quickly as we expect, and we may be unable to hire or retain sufficient numbers of qualified individuals in the future in the markets where we do business. We cannot predict whether, or to what extent, our sales will increase as we expand our sales and marketing functions or how long it will take for new personnel to become productive. Our business will be harmed if our sales and marketing efforts do not generate a significant increase in revenue.
We employ a pricing model that subjects us to various challenges that could make it difficult for us to derive sufficient value from our customers.
We generally charge our customers for their use of our customer service platform based on the number of users they enable as “agents” to provide customer service under their customer account. At the same time, we provide features and functionality within our customer service platform that enable our customers to promote customer self-service and otherwise efficiently and cost-effectively address product support requests without the need for substantial human interaction. As a result of these features, customer agent staffing requirements may be minimized and our revenue may be adversely impacted.
We separately charge for the use of our live chat software. Historically, we provided limited chat functionality within our customer service platform for no additional charge. With the integration of our live-chat software into our customer service platform, we now generally require a separate subscription to enable chat functionality in connection with our customer service platform. We do not know whether our customers or the market in general will accept this change in our pricing model and if it fails to gain acceptance our business and results of operations could be harmed.
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Our terms of service prohibit the sharing of user logins and passwords. These restrictions may be improperly circumvented or otherwise bypassed by certain users and, if they are, we may not be able to capture the full value for the use of our customer serv ice platform. We license access and use of our customer service platform and live chat software exclusively for our customers’ internal use only. If customers improperly resell or otherwise make our customer service platform or live chat software available to their customers, it may cannibalize our sales or commoditize our customer service platform and live chat software in the market. Additionally, if a customer that has received a volume discount from us offers our customer service platform to its custome rs in violation of our terms of service, we may experience price erosion and be unable to capture sufficient value from the use of our customer service platform or live chat software by those customers.
While our terms of service provide us the ability to enforce our terms, our customers may resist or refuse to allow us to audit their usage, in which case we may have to pursue legal recourse to enforce our rights. Any such enforcement action would require us to spend money, distract management, and potentially adversely affect our relationship with our customers.
We do not have the history with our subscription or pricing models necessary to accurately predict optimal pricing necessary to attract new customers and retain existing customers.
We have limited experience with respect to determining the optimal prices for our customer service platform and live chat software and as a result, we have in the past and expect in the future that we will need to change our pricing model from time to time. As the market for our customer service platform and live chat software matures, or as new competitors introduce new products or services that compete with ours, we may be unable to attract new customers at the same price or based on the same pricing models as we have used historically. Pricing decisions may also impact the mix of adoption among our subscription plans and negatively impact our overall revenue. Moreover, larger organizations, which are a primary focus of our direct sales efforts, may demand substantial price concessions. As a result, in the future we may be required to reduce our prices, which could adversely affect our revenue, gross margin, profitability, financial position, and cash flow.
Our financial results may fluctuate due to increasing variability in our sales cycles.
We plan our expenses based on certain assumptions about the length and variability of our sales cycle. These assumptions are based upon historical trends for sales cycles and conversion rates associated with our existing customers, many of whom to date have been small to medium-sized organizations that make purchasing decisions with limited interaction with our sales or other personnel. As we continue to focus on and become more dependent on sales to larger organizations, we expect our sales cycles to lengthen and become less predictable. This may adversely affect our financial results. Factors that may influence the length and variability of our sales cycle include:
●	the need to educate prospective customers about the uses and benefits of our customer service platform and live chat software;	
●	the discretionary nature of purchasing and budget cycles and decisions;	
●	the competitive nature of evaluation and purchasing processes;	
●	evolving functionality demands;	
●	announcements or planned introductions of new products, features, or functionality by us or our competitors; and	
●	lengthy purchasing approval processes.	
Our increasing dependence on sales to larger organizations may increase the variability of our financial results. If we are unable to close one or more expected significant transactions with these customers in a particular period, or if an expected transaction is delayed until a subsequent period, our operating results for that period, and for any future periods in which revenue from such transaction would otherwise have been recognized, may be adversely affected.
Our quarterly results may fluctuate for various other reasons, and if we fail to meet the expectations of analysts or investors, our stock price and the value of an investment in our common stock could decline substantially.
Our quarterly financial results may fluctuate as a result of a variety of other factors, many of which are outside of our control. If our quarterly financial results fall below the expectations of investors or any securities analysts who follow our stock, the price of our common stock could decline substantially. Some of the important factors that may cause our revenue, operating results, and cash flows to fluctuate from quarter to quarter include:
●	our ability to attract new customers, retain and increase sales to existing customers, and satisfy our customers’ requirements;	
●	the number of new employees added;	
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●	the rate of expansion and productivity of our sales force;	
●	changes in our or our competitors’ pricing policies;	
●	the amount and timing of operating costs and capital expenditures related to the operations and expansion of our business;	
●	new products, features, or functionalities introduced by our competitors;	
●	significant security breaches, technical difficulties, or interruptions to our customer service platform or live chat software;	
●	the timing of customer payments and payment defaults by customers;	
●	general economic conditions that may adversely affect either our customers’ ability or willingness to purchase additional subscriptions, delay a prospective customer’s purchasing decision, reduce the value of new subscription contracts, or affect customer retention;	
●	changes in the relative and absolute levels of professional services we provide;	
●	changes in foreign currency exchange rates;	
●	extraordinary expenses such as litigation or other dispute-related settlement payments;	
●	the impact of new accounting pronouncements; and	
●	the timing of the grant or vesting of equity awards to employees.	
Many of these factors are outside of our control, and the occurrence of one or more of them might cause our revenue, operating results, and cash flows to vary widely. As such, we believe that quarter-to-quarter comparisons of our revenue, operating results, and cash flows may not be meaningful and should not be relied upon as an indication of future performance.
Unfavorable conditions in our industry or the global economy or reductions in information technology spending could limit our ability to grow our business and negatively affect our operating results.
Our operating results may vary based on the impact of changes in our industry or the global economy on us or our customers. The revenue growth and potential profitability of our business depend on demand for business software applications and services generally and for customer service systems in particular. In addition, our revenue is entirely dependent on the number of users of our customer service platform or live chat software at each of our customers, which in turn is influenced by the employment and hiring patterns of our customers. To the extent that weak economic conditions cause our customers and prospective customers to freeze or reduce their hiring for personnel providing service and support, demand for our customer service platform and live chat software may be negatively affected. Historically, during economic downturns there have been reductions in spending on information technology and customer service systems as well as pressure for extended billing terms and other financial concessions. If economic conditions deteriorate, our customers and prospective customers may elect to decrease their information technology and customer service budgets, which would limit our ability to grow our business and negatively affect our operating results.
Our business depends substantially on our customers renewing their subscriptions and purchasing additional subscriptions from us. Any decline in our customer retention or expansion would harm our future operating results.
In order for us to maintain or improve our operating results, it is important that our customers renew their subscriptions when the initial contract term expires and add additional authorized agents to their customer accounts. Even though the majority of our revenue is derived from subscriptions to our customer service platform that have terms longer than one month, a significant portion of the subscriptions to our customer service platform have monthly terms. Our customers have no obligation to renew their subscriptions, and our customers may not renew subscriptions with a similar contract period or with the same or a greater number of agents. Some of our customers have elected not to renew their agreements with us and we do not have enough history to accurately predict long-term customer retention.
Our customer retention may decline or fluctuate as a result of a number of factors, including our customers’ satisfaction with our customer service platform or live chat software, our product support, our prices, the prices of competing software systems, mergers and acquisitions affecting our customer base, the effects of global economic conditions, or reductions in our customers’ spending levels. Our future success is also substantially dependent on our ability to sell more subscriptions to our current customers. If our customers do not renew their subscriptions, renew on less favorable terms or fail to add more agents, our revenue may decline, and we may not realize improved operating results from our customer base.
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If we are unable to develop and ma intain successful relationships with channel partners, our business, operating results, and financial condition could be adversely affected.
To date, we have been primarily dependent on word-of-mouth, online marketing, and our direct sales force to sell subscriptions to our customer service platform and live chat software. Although we have developed certain channel partners, such as referral partners, resellers, and integration partners, these channels have resulted in limited revenue to date. We believe that continued growth in our business is dependent upon identifying, developing, and maintaining strategic relationships with additional channel partners that can drive substantial revenue. Our agreements with our existing channel partners are non-exclusive, meaning our channel partners may offer customers the products of several different companies, including products that compete with ours. They may also cease marketing our customer service platform and live chat software with limited or no notice and with little or no penalty. We expect that any additional channel partners we identify and develop will be similarly non-exclusive and not bound by any requirement to continue to market our customer service platform or live chat software. If we fail to identify additional channel partners, in a timely and cost-effective manner, or at all, or are unable to assist our current and future channel partners in independently selling and deploying our customer service platform or live chat software, our business, results of operations, and financial condition could be adversely affected. Additionally, customer retention and expansion attributable to customers acquired through our channel partners may differ significantly from customers acquired through our direct sales efforts. If our channel partners do not effectively market and sell our customer service platform or live chat software, or fail to meet the needs of our customers, our reputation and ability to grow our business may also be adversely affected.
Sales by channel partners are more likely than direct sales to involve collectability concerns, in particular sales by our channel partners into developing markets, and accordingly, variations in the mix between revenue attributable to sales by channel partners and revenue attributable to direct sales may result in fluctuations in our operating results.
If we are not able to maintain and enhance our brand, our business, operating results, and financial condition may be adversely affected.
We believe that maintaining and enhancing our reputation as a differentiated and category-defining company in customer service is critical to our relationships with our existing customers and to our ability to attract new customers. The successful promotion of our brand attributes will depend on a number of factors, including our marketing efforts, our ability to continue to develop high-quality software, and our ability to successfully differentiate our customer service platform from competitive products and services. We are highly dependent upon “consumer” tactics, including an emphasis on simplicity and a sense of humor in our advertising, to build our brand and develop brand loyalty. We do not have sufficient history to know if such brand promotion activities will ultimately be successful or yield increased revenue relative to traditional enterprise software marketing strategies. In addition, independent industry analysts often provide reviews of our customer service platform, as well as products and services offered by our competitors, and perception of our platform in the marketplace may be significantly influenced by these reviews. If these reviews are negative, or less positive as compared to those of our competitors’ products and services, our brand may be adversely affected. It may also be difficult to maintain and enhance our brand in connection with sales through channel or strategic partners.
The promotion of our brand requires us to make substantial expenditures, and we anticipate that the expenditures will increase as our market becomes more competitive, as we expand into new markets, and as more sales are generated through our channel partners. To the extent that these activities yield increased revenue, this revenue may not offset the increased expenses we incur. If we do not successfully maintain and enhance our brand, our business may not grow, we may have reduced pricing power relative to competitors, and we could lose customers or fail to attract potential customers, all of which would adversely affect our business, results of operations, and financial condition.
Our international sales and operations subject us to additional risks that can adversely affect our business, operating results, and financial condition.
In the three months ended June 30, 2015 and 2014, we derived 44 % and 43% of our revenue from customers located outside of the United States, respectively, and in the six months ended June 30, 2015 and 2014, we derived 45% and 42% of our revenue from customers outside of the United States, respectively.  We are continuing to expand our international operations as part of our growth strategy. We currently have sales personnel and sales and product support operations in the United States and certain countries across Europe, Australia, Asia, and South America. Our sales organization outside the United States is substantially smaller than our sales organization in the United States and to date a very limited portion of our sales has been driven by resellers or other channel partners. We believe our ability to convince new customers to subscribe to our platform or to convince existing customers to renew or expand their use of our platform is directly correlated to the level of engagement we obtain with the customer. To the extent we are unable to effectively engage with non-U.S. customers due to our limited sales force capacity and limited channel partners, we may be unable to effectively grow in international markets.
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Our international operations subject us to a variety of additional risks and challenges, including:
●	increased management, travel, infrastructure, and legal compliance costs associated with having multiple international operations;	
●	longer payment cycles and difficulties in enforcing contracts, collecting accounts receivable, or satisfying revenue recognition criteria, especially in emerging markets;	
●	increased financial accounting and reporting burdens and complexities;	
●	requirements or preferences for domestic products;	
●	differing technical standards, existing or future regulatory and certification requirements and required features and functionality;	
●	economic conditions in each country or region and general economic uncertainty around the world;	
●	compliance with foreign privacy and security laws and regulations and the risks and costs of non-compliance;	
●	compliance with laws and regulations for foreign operations, including anti-bribery laws (such as the U.S. Foreign Corrupt Practices Act of 1977, as amended, the U.S. Travel Act, and the U.K. Bribery Act 2010), import and export control laws, tariffs, trade barriers, economic sanctions, and other regulatory or contractual limitations on our ability to sell our customer service platform or live chat software in certain foreign markets, and the risks and costs of non-compliance;	
●	heightened risks of unfair or corrupt business practices in certain geographies and of improper or fraudulent sales arrangements that may impact our financial results and result in restatements of our consolidated financial statements;	
●	fluctuations in currency exchange rates and related effect on our operating results;	
●	difficulties in repatriating or transferring funds from or converting currencies in certain countries;	
●	communication and integration problems related to entering new markets with different languages, cultures, and political systems;	
●	differing labor standards, including restrictions related to, and the increased cost of, terminating employees in some countries;	
●	the need for localized software and licensing programs;	
●	the need for localized language support;	
●	reduced protection for intellectual property rights in some countries and practical difficulties of enforcing rights abroad; and	
●	compliance with the laws of numerous foreign taxing jurisdictions, including withholding obligations, and overlapping of different tax regimes.	
Any of these risks could adversely affect our international operations, reduce our international revenue, or increase our operating costs, adversely affecting our business, operating results, financial condition, and growth prospects.
Compliance with laws and regulations applicable to our international operations substantially increases our cost of doing business in foreign jurisdictions. We may be unable to keep current with changes in government requirements as they change from time to time. Failure to comply with these regulations could have adverse effects on our business. In many foreign countries it is common for others to engage in business practices that are prohibited by our internal policies and procedures or U.S. or other regulations applicable to us. Although we have implemented policies and procedures designed to ensure compliance with these laws and policies, there can be no assurance that all of our employees, contractors, partners, and agents will comply with these laws and policies. Violations of laws or key control policies by our employees, contractors, partners, or agents could result in delays in revenue recognition, financial reporting misstatements, enforcement actions, disgorgement of profits, fines, civil and criminal penalties, damages, injunctions, other collateral consequences, or the prohibition of the importation or exportation of our platform and services and could adversely affect our business and results of operations.
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We are subject to governmental export and import controls that could impair our ability to compete in international markets or subject us to liability if we violate the controls.
We are subject to U.S. export controls, and we incorporate encryption technology into our customer service platform and live chat software that is enabled through mobile applications and other software we may be deemed to export. These encryption products and the underlying technology may be exported outside of the United States only with the required export authorizations, including by license, a license exception or other appropriate government authorizations, including the filing of an encryption registration. We previously deployed mobile applications prior to obtaining the required export authorizations. Accordingly, we have not fully complied with applicable encryption controls in U.S. export administration regulations. As discussed further below, in 2013, we filed final voluntary disclosures to relevant U.S. enforcement authorities regarding our failure to obtain required export authorizations.
Furthermore, U.S. export control laws and economic sanctions prohibit the shipment of certain products and services to countries, governments, territories, and persons targeted by U.S. sanctions. While we are currently taking precautions to prevent our customer service platform and live chat software from being enabled by persons targeted by U.S. sanctions, including IP blocking and periodic customer screening against U.S. government lists of prohibited persons, such measures may be circumvented.  Given the technical limitations in developing measures that will prevent access to internet based services from particular geographies or by particular individuals, we have previously identified and expect we will continue to identify customer accounts for our customer service platform and live chat software that we suspect originate from countries which are subject to U.S. embargoes.
We are aware that trials of and subscriptions to our customer service platform and live chat software have been initiated by persons and organizations in countries that are the subject of U.S. embargoes. Our provision of service in these instances was likely in violation of U.S. export control and sanctions laws. We have terminated the accounts of such organizations as we have become aware of them, implemented certain measures designed to prevent future unauthorized access by such persons and organizations and filed voluntary self disclosures with the U.S. Department of Commerce’s Bureau of Industry and Security, or BIS, and the U.S. Department of Treasury’s Office of Foreign Assets Control, or OFAC, concerning prior potential violations. BIS and OFAC have completed their investigations of U.S. export controls laws and U.S. sanctions laws and have issued, in the case of OFAC, cautionary letters, and in the case of BIS, warning letters. No monetary penalties or other sanctions were imposed by either agency in connection with their investigations.
If we are found to be in violation of U.S. sanctions or export control laws, it could result in fines or penalties for us and for individuals, including civil penalties of up to $250,000 or twice the value of the transaction, whichever is greater, per violation, and in the event of conviction for a criminal violation, fines of up to $1 million and possible incarceration for responsible employees and managers for willful and knowing violations. Each instance in which we provide service through our customer service platform or live chat software or in which unlicensed encryption functionality software is downloaded may constitute a separate violation of these laws.
If our channel partners fail to obtain appropriate import, export or re-export licenses or permits, we may also be adversely affected, through reputational harm as well as other negative consequences including government investigations and penalties. We presently incorporate sanctions compliance requirements in our channel partner agreements for our customer service platform and live chat software. Complying with export control and sanctions regulations for a particular sale may be time-consuming and may result in the delay or loss of sales opportunities. Failure to comply with export control and sanctions regulations for a particular sale may expose us to government investigations and penalties, which could have an adverse effect on our business, operating results, and financial condition.
In addition, various countries regulate the import of certain encryption technology, including import permitting and licensing requirements, and have enacted laws that could limit our ability to offer our platform or distribute our platform or could limit our customers’ ability to implement our platform in those countries. Changes in our customer service platform or live chat software or future changes in export and import regulations may create delays in the introduction of our customer service platform or live chat software in international markets or prevent our customers with international operations from deploying our platform globally. Any change in export or import regulations, economic sanctions or related legislation, or change in the countries, governments, persons, or technologies targeted by such regulations, could result in decreased use of our customer service platform or live chat software by, or in our decreased ability to export or sell our customer service platform or live chat software to, existing or potential customers with international operations. Any decreased use of our customer service platform or live chat software or limitation on our ability to export or sell our customer service platform or live chat software would likely adversely affect our business operations and financial results.
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We recognize revenue over the term of our customer contracts. Consequently, downturns or upturns in new sales may not be immediately reflected in our operating results and may be difficult to discern.
We generally recognize subscription revenue from customers ratably over the terms of their contracts and a majority of our revenue is derived from subscriptions that have terms longer than one month. As a result, a portion of the revenue we report in each quarter is derived from the recognition of deferred revenue relating to subscriptions entered into during previous quarters. Consequently, a decline in new or renewed subscriptions with terms that are longer than monthly in any single quarter may have a small impact on our revenue results for that quarter. However, such a decline will negatively affect our revenue in future quarters. Accordingly, the effect of significant downturns in sales and market acceptance of our customer service platform or live chat software, and potential changes in our pricing policies or rate of expansion or retention, may not be fully reflected in our results of operations until future periods. We may also be unable to reduce our cost structure in line with a significant deterioration in sales. In addition, because we believe a substantial percentage of subscriptions to our customer service platform and live chat software are shorter than most comparable SaaS companies and because we have many variations of billing cycles, our deferred revenue may be a less meaningful indicator of our future financial results than for other SaaS companies. In addition, a significant majority of our costs are expensed as incurred, while revenue is recognized over the life of the agreement with our customer. As a result, increased growth in the number of our customers could continue to result in our recognition of more costs than revenue in the earlier periods of the terms of our agreements. Our subscription model also makes it difficult for us to rapidly increase our revenue through additional sales in any period, as revenue from new customers must be recognized over the applicable subscription term.
Certain of our operating results and financial metrics may be difficult to predict as a result of seasonality.
Although we have not historically experienced significant seasonality in terms of the number of subscriptions for our customer service platform throughout the year, we may be impacted by seasonal trends in the future, particularly as our business matures. We do not have sufficient experience in selling our live chat software to determine if demand for this service is or will be subject to material seasonality. Since a large percentage of our subscriptions are monthly, customers are able to rapidly increase and decrease the number of authorized agents for whom they require a subscription quickly and easily, thereby potentially increasing the impact of seasonality on our revenue. This seasonality may be reflected to a much lesser extent, and sometimes may not be immediately apparent, in our revenue, due to the fact that we recognize subscription revenue over the term of our agreement. To the extent we experience this seasonality, it may cause fluctuations in our operating results and financial metrics, and make forecasting our future operating results and financial metrics difficult.
Our ongoing and planned investments in self-managed colocation data centers are expensive and complex, have resulted, and will result, in a negative impact on our cash flows and may negatively impact our financial results.
We have made and will continue to make substantial investments in new equipment for use in our self-managed colocation data centers to support our growth and provide enhanced levels of service to our customers. We made capital expenditures relating to hosting equipment for use in these data centers of $3.0 million and $1.3 million in the three months ended June 30, 2015 and 2014, respectively, and $6.0 million and $4.9 million in the six months ended June 30, 2015 and 2014, respectively. We have transitioned from primarily a managed-service hosting model, where a third party manages most aspects of our hosting operations, to a self-managed colocation model, where we have more direct control over the hosting infrastructure and its operation. This has and may continue to have a negative impact on our cash flows and gross profit as we invest in capital assets to establish and expand our use of these self-managed colocation data centers and scale these facilities to expected demand. If we are required to make larger investments in our self-managed colocation data centers than we anticipated or if we require significant managed hosting services to support our growth, the negative impact on our operating results would likely exceed our initial expectations.
Our business and growth depend in part on the success of our strategic relationships with third parties, including technology partners, channel partners, and professional services partners.
We depend on, and anticipate that we will continue to depend on, various third-party relationships in order to sustain and grow our business. We are highly dependent upon third-party technology partners for certain critical features and functionality of our platform. For example, the advanced analytics features of the higher end subscription plans of our customer service platform are highly dependent on our technology integration with GoodData, Inc. Failure of this or any other technology provider to maintain, support, or secure its technology platforms in general, and our integrations in particular, or errors or defects in its technology, could materially and adversely impact our relationship with our customers, damage our reputation and brand, and harm our business and operating results. Any loss of the right to use any of this hardware or software could result in delays or difficulties in our ability to provide our platform until equivalent technology is either developed by us or, if available, identified, obtained, and integrated.
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For deployments of our customer service platform into complex technology environments and workflows, we are highly dependent on third-party implementation consultants to provide professional services to our customers. The failure of these third-party consulta nts to perform their services adequately may disrupt or damage the relationship between us and our customer, damage our brand, and harm our business.
Identifying, negotiating, and documenting relationships with strategic third parties such as technology partners and implementation providers require significant time and resources. In addition, integrating third-party technology is complex, costly, and time-consuming. Our agreements with technology partners and implementation providers are typically limited in duration, non-exclusive, and do not prohibit them from working with our competitors or from offering competing services. Our competitors may be effective in providing incentives to third parties to favor their products or services or to prevent or reduce subscriptions to our platform.
If we are unsuccessful in establishing or maintaining our relationships with these strategic third parties, our ability to compete in the marketplace or to grow our revenue could be impaired and our operating results would suffer. Even if we are successful, we cannot assure you that these relationships will result in improved operating results.
If we fail to integrate our customer service platform and live chat software with a variety of operating systems, software applications, and hardware that are developed by others, our customer service platform and live chat software may become less marketable, less competitive, or obsolete, and our operating results would be harmed.
Our customer service platform and live chat software must integrate with a variety of network, hardware, and software platforms, and we need to continuously modify and enhance our customer service platform and live chat software to adapt to changes in cloud-enabled hardware, software, networking, browser, and database technologies. In particular, we have developed our platform to be able to easily integrate with third-party SaaS applications, including the applications of software providers that compete with us, through the interaction of application platform interfaces, or APIs. In general, we rely on the fact that the providers of such software systems, including salesforce.com, continue to allow us access to their APIs to enable these customer integrations. To date, we have not relied on a long-term written contract to govern our relationship with these providers. Instead, we are subject to the standard terms and conditions for application developers of such providers, which govern the distribution, operation, and fees of such software systems, and which are subject to change by such providers from time to time. Our business may be harmed if any provider of such software systems:
●	discontinues or limits our access to its APIs;	
●	modifies its terms of service or other policies, including fees charged to, or other restrictions on us or other application developers;	
●	changes how customer information is accessed by us or our customers;	
●	establishes more favorable relationships with one or more of our competitors; or	
●	otherwise favors its own competitive offerings over ours.	
We believe a significant component of our value proposition to customers is the ability to optimize and configure our customer service platform to communicate with these third-party SaaS applications through our respective APIs. If we are not permitted or able to integrate with these and other third-party SaaS applications in the future, demand for our customer service platform could be adversely impacted and business and operating results would be harmed. In addition, an increasing number of individuals within organizations are utilizing mobile devices to access the Internet and corporate resources and to conduct business. We have designed mobile applications to provide access to our customer service platform through these devices. If we cannot provide effective functionality through these mobile applications as required by organizations and individuals that widely use mobile devices, we may experience difficulty attracting and retaining customers. Failure of our customer service platform or live chat software to operate effectively with future infrastructure platforms and technologies could also reduce the demand for our platform, resulting in customer dissatisfaction and harm to our business. If we are unable to respond to changes in a cost-effective manner, our platform may become less marketable, less competitive, or obsolete and our operating results may be negatively impacted.
We may acquire or invest in companies, which may divert our management’s attention and result in additional dilution to our stockholders. We may be unable to integrate acquired businesses and technologies successfully or achieve the expected benefits of such acquisitions.
We may evaluate and consider potential strategic transactions, including acquisitions of, or investments in, businesses, technologies, services, products, and other assets in the future. We also may enter into relationships with other businesses to expand our products and services, which could involve preferred or exclusive licenses, additional channels of distribution, discount pricing, or investments in other companies.
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Any acquisition, including our acquisition of Zopim, investment or business relationship may result in unforeseen operating difficulties and expenditures. In particular, we may encounter difficulties assimilating or integrating the businesses, technologies, products, personnel, or operations of the acquired companies, particularly if the key personnel of t he acquired company choose not to work for us, their software is not easily adapted to work with our platform, or we have difficulty retaining the customers of any acquired business due to changes in ownership, management, or otherwise. For example, we onl y recently completed our acquisition of Zopim, and substantially all of the acquisition and integration risks remain. Acquisitions, including our acquisition of Zopim, may also disrupt our business, divert our resources, and require significant management attention that would otherwise be available for development of our existing business. Moreover, the anticipated benefits of any acquisition, investment, or business relationship may not be realized or we may be exposed to unknown risks or liabilities.
Negotiating these transactions can be time-consuming, difficult, and expensive, and our ability to complete these transactions may often be subject to approvals that are beyond our control. Consequently, these transactions, even if announced, may not be completed. For one or more of those transactions, we may:
●	issue additional equity securities that would dilute our existing stockholders;	
●	use cash that we may need in the future to operate our business;	
●	incur large charges or substantial liabilities;	
●	incur debt on terms unfavorable to us or that we are unable to repay;	
●	encounter difficulties retaining key employees of the acquired company or integrating diverse software codes or business cultures; and	
●	become subject to adverse tax consequences, substantial depreciation, or deferred compensation charges.	
Because our customer service platform and live chat software can be used to collect and store personal information, domestic and international privacy and data security concerns could result in additional costs and liabilities to us or inhibit sales of our customer service platform or live chat software.
Personal privacy and data security have become significant issues in the United States, Europe, and in many other jurisdictions where we offer our customer service platform or live chat software. The regulatory framework for privacy and security issues worldwide is rapidly evolving and is likely to remain uncertain for the foreseeable future. Many federal, state, and foreign government bodies and agencies have adopted, or are considering adopting, laws and regulations regarding the collection, use, and disclosure of personal information. In the United States, these include rules and regulations promulgated under the authority of federal agencies and state attorneys general and consumer protection agencies. Internationally, virtually every jurisdiction in which we operate has established its own data security and privacy legal framework with which we or our customers must comply, including Directive 95/46/EC on the protection of individuals with regard to the processing of personal data and on the free movement of such data established in the European Union, or the Data Protection Directive, and data protection legislation of the individual member states subject to the Data Protection Directive. The Data Protection Directive will likely be replaced in time with the pending European General Data Protection Regulation which may impose additional obligations and risk upon our business. In many jurisdictions enforcement actions and consequences for non-compliance are also rising.
Zendesk, Inc. certifies adherence to the U.S. Department of Commerce’s Safe Harbor Privacy Principles and complies with the U.S.-EU and U.S.-Swiss Safe Harbor Frameworks with respect to our customer service platform, however, it is not clear whether or for how long applicable data protection authorities in the European Union will continue to recognize such certification as a valid method of compliance with restrictions set forth in the Data Protection Directive and data protection legislation of individual member states restricting the transfer of data outside of the European Economic Area. Since our live chat software is provided by Zopim, a company organized under the laws of Singapore, certification to the U.S. Department of Commerce’s Safe Harbor Privacy Principles and compliance with the U.S.-EU and U.S.-Swiss Safe Harbor Frameworks with respect to our live chat software is not available (to the extent such safe harbor processes are still recognized). The inability to certify such compliance means that the EU Privacy Directive and other privacy regimes may impose additional obligations to obtain consent from data subjects to transfer personally identifiable information, or PII, outside of the European Union on the part of our EU-based customers that use our live chat software. Additionally, the inability to certify such compliance or otherwise provide acceptable privacy assurances may inhibit the sale and use of our live chat software in the European Union and certain other markets, which could, were it to occur, harm our business and operating results.
In addition to government regulation, privacy advocates and industry groups may propose new and different self-regulatory standards that either legally or contractually apply to us. Further, our customers may require us to comply with more stringent privacy and data security contractual requirements.
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Because the interpretation and application of many privacy and data protection laws, co mmercial frameworks and standards are uncertain, it is possible that these laws, frameworks, and standards may be interpreted and applied in a manner that is inconsistent with our existing data management practices or the features of our customer service p latform or live chat software. If so, in addition to the possibility of fines, lawsuits, breach of contract claims, and other claims and penalties, we could be required to fundamentally change our business activities and practices or modify our customer se rvice platform or live chat software, which could have an adverse effect on our business. Any inability to adequately address privacy and security concerns, even if unfounded, or comply with applicable privacy and security or data security laws, regulation s and policies, could result in additional cost and liability to us, damage our reputation, inhibit sales, and adversely affect our business.
Furthermore, the costs of compliance with, and other burdens imposed by, the laws, regulations, and policies that are applicable to the businesses of our customers may limit the use and adoption of, and reduce the overall demand for, our customer service platform or live chat software. Privacy and data security concerns, whether valid or not valid, may inhibit market adoption of our customer service platform or live chat software, particularly in certain industries and foreign countries.
We may be sued by third parties for alleged infringement of their proprietary rights.
There is considerable patent and other intellectual property development activity in our industry. Our future success depends in part on not infringing upon the intellectual property rights of others. From time to time, our competitors or other third parties may claim that we are infringing upon their intellectual property rights, and we may be found to be infringing upon such rights. We may receive claims from third parties, including our competitors, that our customer service platform or live chat software and underlying technology infringe or violate a third party’s intellectual property rights, and we may be found to be infringing upon such rights. We may be unaware of the intellectual property rights of others that may cover some or all of our technology. Any claims or litigation could cause us to incur significant expenses and, if successfully asserted against us, could require that we pay substantial damages or ongoing royalty payments, prevent us from offering our customer service platform or live chat software, or require that we comply with other unfavorable terms. We may also be obligated to indemnify our customers or business partners in connection with any such litigation and to obtain licenses, modify our customer service platform or live chat software, or refund subscription fees, which could further exhaust our resources. In addition, we may incur substantial costs to resolve claims or litigation, whether or not successfully asserted against us, which could include payment of significant settlement, royalty or license fees, modification of our customer service platform or live chat software, or refunds to customers of subscription fees. Even if we were to prevail in the event of claims or litigation against us, any claim or litigation regarding our intellectual property could be costly and time-consuming and divert the attention of our management and other employees from our business operations. Such disputes could also disrupt our customer service platform or live chat software, adversely impacting our customer satisfaction and ability to attract customers.
Indemnity provisions in various agreements potentially expose us to substantial liability for intellectual property infringement and other losses.
Our agreements with customers and other third parties may include indemnification or other provisions under which we agree to indemnify or otherwise be liable to them for losses suffered or incurred as a result of claims of intellectual property infringement, damages caused by us to property or persons, or other liabilities relating to or arising from our customer service platform or live chat software or other acts or omissions. The term of these contractual provisions often survives termination or expiration of the applicable agreement. Large indemnity payments or damage claims from contractual breach could harm our business, operating results, and financial condition. From time to time, customers require us to indemnify or otherwise be liable to them for breach of confidentiality or failure to implement adequate security measures with respect to their data stored, transmitted, or processed by our customer service platform or live chat software. Although we normally contractually limit our liability with respect to such obligations, we may still incur substantial liability related to them. Any dispute with a customer with respect to such obligations could have adverse effects on our relationship with that customer and other current and prospective customers, reduce demand for our customer service platform, and harm our business and operating results.
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Our use of “open source” software could negatively affect our ability to sell our customer service platform and live chat software and subject us to possible litigation.
We use open source software in our customer service platform and live chat software and expect to continue to use open source software in the future. We may face claims from others claiming ownership of, or seeking to enforce the terms of, an open source license, including by demanding release of the open source software, derivative works or our proprietary source code that was developed using such software. These claims could also result in litigation, require us to purchase a costly license or require us to devote additional research and development resources to change our customer service platform or live chat software, any of which would have a negative effect on our business and operating results. In addition, if the license terms for the open source software we utilize change, we may be forced to reengineer our customer service platform or live chat software or incur additional costs. Although we have implemented policies to regulate the use and incorporation of open source software into our customer service platform and live chat software, we cannot be certain that we have not incorporated open source software in our customer service platform or live chat software in a manner that is inconsistent with such policies.
Any failure to protect our intellectual property rights could impair our ability to protect our proprietary technology and our brand.
Our success and ability to compete depend in part upon our intellectual property. We currently have one issued patent and have a limited number of patent applications, none of which may result in an issued patent. We primarily rely on copyright, trade secret and trademark laws, trade secret protection, and confidentiality or license agreements with our employees, customers, partners, and others to protect our intellectual property rights. However, the steps we take to protect our intellectual property rights may be inadequate.
In order to protect our intellectual property rights, we may be required to spend significant resources to monitor and protect these rights. Litigation brought to protect and enforce our intellectual property rights could be costly, time-consuming, and distracting to management, and could result in the impairment or loss of portions of our intellectual property. Furthermore, our efforts to enforce our intellectual property rights may be met with defenses, counterclaims, and countersuits attacking the validity and enforceability of our intellectual property rights. Our failure to secure, protect, and enforce our intellectual property rights could adversely affect our brand and adversely impact our business.
We may not be able to secure additional financing on favorable terms, or at all, to meet our future capital needs.
We have funded our operations since inception primarily through sales of equity securities, capital lease arrangements, loans for equipment, and subscription payments by our customers for use of our customer service platform and live chat software. We do not know when or if our operations will generate sufficient cash to fund our ongoing operations. In the future, we may require additional capital to respond to business opportunities, challenges, acquisitions, a decline in the level of subscriptions for our customer service platform, or unforeseen circumstances. We may not be able to timely secure additional debt or equity financing on favorable terms, or at all. Any debt financing obtained by us could involve restrictive covenants relating to financial and operational matters, which may make it more difficult for us to obtain additional capital and to pursue business opportunities, including potential acquisitions. Additionally, we may not be able to generate sufficient cash to service any debt financing obtained by us, which may force us to reduce or delay capital expenditures or sell assets or operations. If we raise additional funds through further issuances of equity, convertible debt securities or other securities convertible into equity, our existing stockholders could suffer significant dilution in their percentage ownership of our company, and any new equity securities we issue could have rights, preferences and privileges senior to those of holders of our common stock. If we are unable to obtain adequate financing or financing on terms satisfactory to us, when we require it, our ability to continue to grow or support our business and to respond to business challenges could be significantly limited.
We face exposure to foreign currency exchange rate fluctuations.
As our international operations expand, our exposure to the effects of fluctuations in currency exchange rates grows. While we have primarily transacted with customers and vendors in U.S. dollars historically, we expect to continue to expand the number of transactions with our customers that are denominated in foreign currencies in the future. Fluctuations in the value of the U.S. dollar and foreign currencies may make our subscriptions more expensive for international customers, which could harm our business. Additionally, we incur expenses for employee compensation and other operating expenses at our non-U.S. locations in the local currency for such locations. Fluctuations in the exchange rates between the U.S. dollar and other currencies could result in an increase to the U.S. dollar equivalent of such expenses. These fluctuations could cause our results of operations to differ from our expectations or the expectations of our investors. Additionally, such foreign currency exchange rate fluctuations could make it more difficult to detect underlying trends in our business and results of operations.
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Our international subsidiaries maintain net assets that are denominated in currencies other than the functional operating currencies of these entities. Accordingly, changes in the value of foreign currencies relative to the U.S. dollar can affect our opera ting results due to transactional and translational remeasurements that are reflected in our results of operations. To the extent that fluctuations in currency exchange rates cause our results of operations to differ from our expectations or the expectatio ns of our investors, the trading price of our common stock could be adversely affected.
We do not currently maintain a program to hedge transactional exposures in foreign currencies. However, in the future, we may use derivative instruments, such as foreign currency forward and option contracts, to hedge certain exposures to fluctuations in foreign currency exchange rates. The use of such hedging activities may not offset any or more than a portion of the adverse financial effects of unfavorable movements in foreign exchange rates over the limited time the hedges are in place. Moreover, the use of hedging instruments may introduce additional risks if we are unable to structure effective hedges with such instruments.
Taxing authorities may successfully assert that we should have collected or in the future should collect sales and use, value added or similar taxes, and we could be subject to liability with respect to past or future sales, which could adversely affect our results of operations.
We do not collect sales and use, value added and similar taxes in all jurisdictions in which we have sales, based on our understanding that such taxes are not applicable. Sales and use, value added, and similar tax laws and rates vary greatly by jurisdiction. Certain jurisdictions in which we do not collect such taxes may assert that such taxes are applicable, which could result in tax assessments, penalties, and interest, and we may be required to collect such taxes in the future. Such tax assessments, penalties, and interest, or future requirements may adversely affect our results of operations.
Our international operations subject us to potentially adverse tax consequences.
We generally conduct our international operations through subsidiaries and report our taxable income in various jurisdictions worldwide based upon our business operations in those jurisdictions. Our intercompany relationships and transactions are subject to complex regulations, including transfer pricing regulations administered by taxing authorities in various jurisdictions.  Our tax returns are generally subject to examination by taxing authorities and the relevant taxing authorities may disagree with our determinations as to the value of assets sold or acquired or income and expenses attributable to specific jurisdictions or transactions. If such a disagreement were to occur, and our position were not sustained, we could be required to pay additional taxes, interest and penalties, which could result in one-time tax charges, higher effective tax rates, reduced cash flows, and lower overall profitability of our operations. We believe that our financial statements reflect adequate reserves to cover such a contingency, but there can be no assurances in that regard and any one-time charges associated with any disagreement may exceed the amount of our reserves and adversely affect our results of operations.
If our goodwill or intangible assets become impaired, we may be required to record a significant charge to earnings.
We review our intangible assets for impairment when events or changes in circumstances indicate the carrying value may not be recoverable. Goodwill is required to be tested for impairment at least annually. As of June 30, 2015, we had recorded a total of $13.0 million of goodwill and intangible assets related to our acquisition of Zopim. An adverse change in market conditions, particularly if such change has the effect of changing one of our critical assumptions or estimates, could result in a change to the estimation of fair value that could result in an impairment charge to our goodwill or intangible assets. Any such charges may have a material negative impact on our operating results.
Our ability to use our net operating losses to offset future taxable income may be subject to certain limitations.
As of December 31, 2014, we had federal and state net operating loss carryforwards, or NOLs, of $133.0 million and $47.5 million, respectively, due to prior period losses. In general, under Section 382 of the Internal Revenue Code of 1986, as amended, or the Code, a corporation that undergoes an “ownership change” is subject to limitations on its ability to utilize its NOLs to offset future taxable income. Our existing NOLs may be subject to limitations arising from previous ownership changes, including in connection with our IPO or our follow-on public offering. Future changes in our stock ownership, some of which are outside of our control, could result in an ownership change under Section 382 of the Code. Furthermore, our ability to utilize NOLs of companies that we may acquire in the future may be subject to limitations. There is also a risk that due to regulatory changes, such as suspensions on the use of NOLs, or other unforeseen reasons, our existing NOLs could expire or otherwise be unavailable to offset future income tax liabilities. For these reasons, we may not be able to realize a tax benefit from the use of our NOLs, whether or not we attain profitability.
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Our estimates of market opportunity and forecasts of market growth may prove to be inaccurate, and even if the market in which we compete achieves the forecasted growth, our business could fail to grow at similar rates, if at all.
Market opportunity estimates and growth forecasts are subject to significant uncertainty and are based on assumptions and estimates that may not prove to be accurate. Our estimates and forecasts relating to the size and expected growth of the customer relationship management market may prove to be inaccurate. Even if the market in which we compete meets our size estimates and forecasted growth, our business could fail to grow at similar rates, if at all.
 
We depend and rely upon SaaS technologies from third parties to operate our business and interruptions or performance problems with these technologies may adversely affect our business and operating results.
We rely heavily on hosted SaaS applications from third parties in order to operate critical functions of our business, including billing and order management, enterprise resource planning, and financial accounting services. If these services become unavailable due to extended outages, interruptions, or because they are no longer available on commercially reasonable terms, our expenses could increase, our ability to manage finances could be interrupted and our processes for managing sales of our platform and supporting our customers could be impaired until equivalent services, if available, are identified, obtained, and implemented, all of which could adversely affect our business.
Changes in laws and regulations related to the Internet or changes in the Internet infrastructure itself may diminish the demand for our platform, cause us to incur additional expenses or otherwise have a negative impact on our business.
The future success of our business depends upon the continued use of the Internet as a primary medium for commerce, communication, and business applications. Federal, state, or foreign government bodies or agencies have in the past adopted, and may in the future adopt, laws or regulations affecting the use of the Internet as a commercial medium. Changes in these laws or regulations could require us to modify our platform in order to comply with these changes or substantially increase costs associated with the operation of our customer service platform and live chat software. Additionally, the adoption of any laws, regulations, or practices limiting Internet neutrality, could allow Internet service providers to block, degrade or interfere with our products or services. These laws, regulations, or practices could decrease the demand for, or the usage of, our products and services, increase our cost of doing business and adversely affect our operating results. In addition, government agencies or private organizations have imposed and may impose additional taxes, fees, or other charges for accessing the Internet or commerce conducted via the Internet. These laws or charges could limit the growth of Internet-related commerce or communications generally, or result in reductions in the demand for Internet-based platforms and services such as ours. In addition, the use of the Internet as a business tool could be adversely affected due to delays in the development or adoption of new standards and protocols to handle increased demands of Internet activity, security, reliability, cost, ease-of-use, accessibility, and quality of service. The performance of the Internet and its acceptance as a business tool has been adversely affected by “viruses,” “worms,” and similar malicious programs and the Internet has experienced a variety of outages and other delays as a result of damage to portions of its infrastructure.
Catastrophic events may disrupt our business.
Our corporate headquarters are located in San Francisco, California and we operate in or utilize data centers that are located in North America, Europe, and Asia. Key features and functionality of our customer service platform are enabled by third parties that are headquartered in California and operate in or utilize data centers in the United States and Europe. Additionally, we rely on our network and third-party infrastructure and enterprise applications, internal technology systems, and our website for our development, marketing, operational support, hosted services, and sales activities.  In the event of a major earthquake, hurricane, or catastrophic event such as fire, power loss, telecommunications failure, cyber-attack, war, or terrorist attack, we may be unable to continue our operations and may endure system interruptions, reputational harm, delays in our application development, lengthy interruptions in our platform, breaches of data security, and loss of critical data, all of which could have an adverse effect on our future operating results.
Risks Related to Ownership of Our Common Stock
Our stock price has been, and may continue to be, volatile or may decline regardless of our operating performance resulting in substantial losses for our stockholders.
The trading price of our common stock has been, and may continue to be, volatile and could fluctuate widely regardless of our operating performance. The market price of our common stock may fluctuate significantly in response to numerous factors, many of which are beyond our control, including:
●	actual or anticipated fluctuations in our operating results;	
●	the financial projections we may provide to the public, any changes in these projections or our failure to meet these projections;	
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●	failure of securities analysts to initiate or maintain coverage of our company, changes in financial estimates and publication of other news by any securities analysts who follow our company, or our failure to meet these estimates or the expectations of investors;	
●	ratings changes by any securities analysts who follow our company;	
●	announcements by us or our competitors of significant technical innovations, acquisitions, strategic partnerships, joint ventures, or capital commitments;	
●	changes in operating performance and stock market valuations of other technology companies generally, or those in our industry in particular;	
●	price and volume fluctuations in the overall stock market from time to time, including as a result of trends in the economy as a whole;	
●	changes in accounting standards, policies, guidelines, interpretations, or principles;	
●	actual or anticipated developments in our business or our competitors’ businesses or the competitive landscape generally;	
●	developments or disputes concerning our intellectual property or our products, or third-party proprietary rights;	
●	announced or completed acquisitions of businesses or technologies by us or our competitors;	
●	new laws or regulations or new interpretations of existing laws, or regulations applicable to our business;	
●	any major change in our board of directors or management;	
●	sales of shares of our common stock by us or our stockholders;	
●	lawsuits threatened or filed against us; and	
●	other events or factors, including those resulting from war, incidents of terrorism, or responses to these events.	
In addition, the stock markets have experienced extreme price and volume fluctuations that have affected and continue to affect the market prices of equity securities of many technology companies. Stock prices of many technology companies have fluctuated in a manner unrelated or disproportionate to the operating performance of those companies. In the past, stockholders have instituted securities class action litigation following periods of market volatility. If we were to become involved in securities litigation, it could subject us to substantial costs, divert resources and the attention of management from operating our business, and adversely affect our business, results of operations, financial condition, and cash flows.
Our directors, officers, and principal stockholders beneficially own a significant percentage of our stock and will be able to exert significant control over matters subject to stockholder approval.
As of June 30, 2015, our directors, officers, five percent or greater stockholders, and their respective affiliates beneficially owned in the aggregate approximately 44.2% of our outstanding common stock. As a result, these stockholders have the ability to influence us through this ownership position. These stockholders may be able to determine all matters requiring stockholder approval. For example, these stockholders may be able to control elections of directors, amendments of our organizational documents, and approval of any merger, sale of assets, or other major corporate transaction. This may prevent or discourage unsolicited acquisition proposals or offers for our common stock that you may feel are in your best interest as one of our stockholders.
Substantial future sales of shares of our common stock could cause the market price of our common stock to decline.
The market price of our common stock could decline as a result of substantial sales of our common stock, particularly sales by our directors, executive officers and significant stockholders or the perception in the market that holders of a large number of shares intend to sell their shares.
Additionally, the shares of common stock subject to outstanding options and restricted stock unit awards under our equity incentive plans and the shares reserved for future issuance under our equity incentive plans will become eligible for sale in the public market in the future, subject to certain legal and contractual limitations.
Certain holders of our common stock have rights, subject to some conditions, to require us to file registration statements covering their shares or to include their shares in registration statements that we may file for ourselves or our stockholders.
48

Anti-takeover provisions in our charter documents and under Delaware law could make an acquisition of our company more difficult, limit attempts by our stockholders to replace or remove our current management and limit the market price of our common stock.
Provisions in our certificate of incorporation and bylaws may have the effect of delaying or preventing a change of control or changes in our management. Our certificate of incorporation and bylaws include provisions that:
●	authorize our board of directors to issue, without further action by the stockholders, shares of undesignated preferred stock with terms, rights, and preferences determined by our board of directors that may be senior to our common stock;	
●	require that any action to be taken by our stockholders be effected at a duly called annual or special meeting and not by written consent;	
●	specify that special meetings of our stockholders can be called only by our board of directors, the Chair of our board of directors, or our Chief Executive Officer;	
●	establish an advance notice procedure for stockholder proposals to be brought before an annual meeting, including proposed nominations of persons for election to our board of directors;	
●	establish that our board of directors is divided into three classes, Class I, Class II, and Class III, with each class serving three-year staggered terms;	
●	prohibit cumulative voting in the election of directors;	
●	provide that our directors may be removed only for cause;	
●	provide that vacancies on our board of directors may be filled only by a majority of directors then in office, even though less than a quorum; and	
●	require the approval of our board of directors or the holders of at least seventy-five percent (75%) of our outstanding shares of capital stock to amend our bylaws and certain provisions of our certificate of incorporation.	
These provisions may frustrate or prevent any attempts by our stockholders to replace or remove our current management by making it more difficult for stockholders to replace members of our board of directors, which is responsible for appointing the members of our management. In addition, because we are incorporated in Delaware, we are governed by the provisions of Section 203 of the Delaware General Corporation Law, which generally prohibits a Delaware corporation from engaging in any of a broad range of business combinations with any “interested” stockholder for a period of three years following the date on which the stockholder became an “interested” stockholder. Any delay or prevention of a change of control transaction or changes in our management could cause the market price of our common stock to decline.
We are an “emerging growth company” and we cannot be certain if the reduced disclosure requirements applicable to emerging growth companies will make our common stock less attractive to investors.
We are an “emerging growth company,” as defined in the federal securities laws, and we may take advantage of certain exemptions from various reporting requirements that are applicable to other public companies that are not “emerging growth companies” including, but not limited to, not being required to comply with the auditor attestation requirements of Section 404 of the  Sarbanes-Oxley Act, reduced disclosure obligations regarding executive compensation in our periodic reports and proxy statements, and exemptions from the requirements of holding a nonbinding advisory vote on executive compensation and stockholder approval of any golden parachute payments not previously approved. We cannot predict if investors will find our common stock less attractive because we may rely on these exemptions. If some investors find our common stock less attractive as a result, there may be a less active trading market for our common stock and our stock price may be more volatile. We will remain an “emerging growth company” until the last day of the fiscal year following the five-year anniversary of the completion of our IPO, although if the market value of our common stock that is held by non-affiliates exceeds $700 million as of the end of the second quarter of a fiscal year prior to the five-year anniversary, we would cease to be an “emerging growth company” as of the following December 31. We anticipate that, as of December 31, 2015, we will no longer be an "emerging growth company" as defined in the federal securities laws.
49

The requirements of being a public company may strain our resources, divert management’s attention, and affect our ability to attract and retain executive management and qualified board members.
As a public company, we are subject to the reporting requirements of the Exchange Act, the Sarbanes-Oxley Act, the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010, the listing requirements of the exchanges and other markets upon which our common stock is listed, and other applicable securities rules and regulations. Compliance with these rules and regulations increase our legal and financial compliance costs, make some activities more difficult, time-consuming, or costly, and increase demand on our systems and resources, particularly after we are no longer an “emerging growth company.” The Exchange Act requires, among other things, that we file annual, quarterly and current reports with respect to our business and operating results. The Sarbanes-Oxley Act requires, among other things, that we maintain effective disclosure controls and procedures and internal control over financial reporting. In order to maintain and, if required, improve our disclosure controls and procedures and internal control over financial reporting to meet this standard, significant resources and management oversight may be required. We are required to disclose changes made in our internal control and procedures on a quarterly basis and we are required to furnish a report by management on, among other things, the effectiveness of our internal control over financial reporting for the first fiscal year beginning after the effective date of our IPO. However, our independent registered public accounting firm is not required to formally audit and attest to the effectiveness of our internal control over financial reporting pursuant to Section 404 until the later of the year following our first annual report required to be filed with the SEC, or the date we are no longer an “emerging growth company.” As a result of the complexity involved in complying with the rules and regulations applicable to public companies, our management’s attention may be diverted from other business concerns, which could adversely affect our business and operating results. Although we have already hired additional employees to assist us in complying with these requirements, we may need to hire more employees in the future or engage outside consultants, which will increase our operating expenses. We anticipate that, as of December 31, 2015, we will no longer be an "emerging growth company" as defined in the federal securities laws.
In addition, changing laws, regulations, and standards relating to corporate governance and public disclosure are creating uncertainty for public companies, increasing legal and financial compliance costs, and making some activities more time consuming. These laws, regulations, and standards are subject to varying interpretations, in many cases due to their lack of specificity, and, as a result, their application in practice may evolve over time as new guidance is provided by regulatory and governing bodies. This could result in continuing uncertainty regarding compliance matters and higher costs necessitated by ongoing revisions to disclosure and governance practices. We intend to invest substantial resources to comply with evolving laws, regulations, and standards, and this investment may result in increased general and administrative expenses and a diversion of management’s time and attention from business operations to compliance activities. If our efforts to comply with new laws, regulations and standards differ from the activities intended by regulatory or governing bodies due to ambiguities related to their application and practice, regulatory authorities may initiate legal proceedings against us and our business may be adversely affected.
Being a public company and these new rules and regulations have made it more expensive for us to obtain director and officer liability insurance, and in the future we may be required to accept reduced coverage or incur substantially higher costs to obtain coverage. These factors could also make it more difficult for us to attract and retain qualified members of our board of directors, particularly to serve on our audit committee and compensation committee, and qualified executive officers.
As a result of disclosure of information in our filings with the SEC, our business and financial condition have become more visible, which we believe may result in threatened or actual litigation, including by competitors and other third parties. If such claims are successful, our business and operating results could be adversely affected, and even if the claims do not result in litigation or are resolved in our favor, these claims, and the time and resources necessary to resolve them, could divert the resources of our management and adversely affect our business and operating results.
We do not intend to pay dividends on our common stock so any returns will be limited to changes in the value of our common stock.
We have never declared or paid any cash dividends on our common stock. We currently anticipate that we will retain future earnings for the development, operation, and expansion of our business, and do not anticipate declaring or paying any cash dividends for the foreseeable future. In addition, our ability to pay cash dividends on our common stock may be prohibited or limited by the terms of our future debt financing arrangements. Any return to stockholders will therefore be limited to the increase, if any, of our stock price, which may never occur.
50

If securities or industry analysts do not continue to publish research or publish inaccurate or unfavorable research about our business, our stock price and trading volume could decline.
The trading market for our common stock depends in part on the research and reports that securities or industry analysts publish about us or our business. If industry analysts cease coverage of us, the trading price for our common stock would be negatively affected. If one or more of the analysts who cover us downgrade our common stock or publish inaccurate or unfavorable research about our business, our common stock price would likely decline. If one or more of these analysts cease coverage of us or fail to publish reports on us regularly, demand for our common stock could decrease, which might cause our common stock price and trading volume to decline.
Our charter documents designate the Court of Chancery of the State of Delaware as the sole and exclusive forum for certain types of actions and proceedings that may be initiated by our stockholders, which could limit our stockholders’ ability to obtain a favorable judicial forum for disputes with us or our directors, officers, or other employees.
Our certificate of incorporation and bylaws provide that, unless we consent in writing to the selection of an alternative forum, the Court of Chancery of the State of Delaware shall be the sole and exclusive forum for (A) any derivative action or proceeding brought on our behalf, (B) any action asserting a claim of breach of a fiduciary duty owed by any of our directors, officers or other employees to us or our stockholders, (C) any action asserting a claim arising pursuant to any provision of the Delaware General Corporation Law, our certificate of incorporation or our bylaws, or (D) any action asserting a claim against us governed by the internal affairs doctrine. Any person or entity purchasing or otherwise acquiring any interest in shares of our capital stock shall be deemed to have notice of and consented to the provisions of our certificate of incorporation described above. This choice of forum provision may limit a stockholder’s ability to bring a claim in a judicial forum that it finds favorable for disputes with us or our directors, officers, or other employees, which may discourage such lawsuits against us and our directors, officers, and other employees. Alternatively, if a court were to find these provisions of our certificate of incorporation inapplicable to, or unenforceable in respect of, one or more of the specified types of actions or proceedings, we may incur additional costs associated with resolving such matters in other jurisdictions, which could adversely affect our business, financial condition, or results of operations.

 Item 2. Unregistered Sales of Equity Securities

None.
 
 Item 6. Exhibits.
The exhibits listed in the accompanying Exhibit Index are filed or incorporated by reference as part of this Quarterly Report.

 SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
 
 	Zendesk, Inc.	
Date: August 6, 2015	 
By:	 	/s/ Alan Black	
 	 	 	Alan Black	
 	 	 	Senior Vice President and Chief Financial Officer
(Principal Financial and Accounting Officer)	
 
51

EXHIBIT
INDEX
 
Exhibit	 	 	 	Incorporated by Reference	
Number	 	Exhibit Description	 	Form	 	File No.	 	Exhibit	 	Filing Date	
10.1	 	Zendesk, Inc. Change in Control Acceleration Plan.	 	8-K	 	001-36456	 	10.1	 	May 15, 2015	
31.1	 	Certification of the Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act.	 	Filed herewith	 	 	 	 	 	 	
31.2	 	Certification of the Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act.	 	Filed herewith	 	 	 	 	 	 	
32.1*	 	Certification of the Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act.	 	Furnished herewith	 	 	 	 	 	 	
32.2*	 	Certification of the Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act.	 	Furnished herewith	 	 	 	 	 	 	
101.INS	 	XBRL Instance Document	 	Filed herewith	 	 	 	 	 	 	
101.SCH	 	XBRL Taxonomy Extension Schema Document	 	Filed herewith	 	 	 	 	 	 	
101.CAL	 	XBRL Taxonomy Extension Calculation Linkbase Document	 	Filed herewith	 	 	 	 	 	 	
101.DEF	 	XBRL Taxonomy Extension Definition Linkbase Document	 	Filed herewith	 	 	 	 	 	 	
101.LAB	 	XBRL Taxonomy Extension Label Linkbase Document	 	Filed herewith	 	 	 	 	 	 	
101.PRE	 	XBRL Taxonomy Extension Presentation Linkbase Document	 	Filed herewith	 	 	 	 	 	 	
________________
*	The certifications furnished in Exhibits 32.1 and 32.2 hereto are deemed to accompany this Quarterly Report on Form 10-Q and will not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, except to the extent that the Registrant specifically incorporates it by reference.	

52

Exhibit 31.1
CERTIFICATION OF CHIEF EXECUTIVE OFFICER
PURSUANT TO EXCHANGE ACT RULE 13a-14(a) OR 15d-14(a),
AS ADOPTED PURSUANT TO
SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002
 
I, Mikkel Svane, certify that:
1.        I have reviewed this quarterly report on Form 10-Q of Zendesk, Inc.;
2.        Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.        Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
4.        The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:
(a)        Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
(b)        Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
(c)        Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
5.        The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):
(a)        All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
(b)        Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: August 6, 2015	 	 	 	By:	 	/s/ Mikkel Svane	
 	 	 	 	 	 	Mikkel Svane	
 	 	 	 	 	 	Chief Executive Officer
(Principal Executive Officer)	

Exhibit 31.2
CERTIFICATION OF CHIEF FINANCIAL OFFICER
PURSUANT TO EXCHANGE ACT RULE 13a-14(a) OR 15d-14(a),
AS ADOPTED PURSUANT TO
SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002
 
I, Alan Black, certify that:
1.        I have reviewed this quarterly report on Form 10-Q of Zendesk, Inc.;
2.        Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.        Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
4.        The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:
(a)        Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
(b)        Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
(c)        Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
5.        The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):
(a)        All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
(b)        Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: August 6, 2015	 	 	 	By:	 	/s/ Alan Black	
 	 	 	 	 	 	Alan Black	
 	 	 	 	 	 	Senior Vice President and Chief Financial Officer
(Principal Financial Officer)	

 
Exhibit 32.1
CERTIFICATION OF CHIEF EXECUTIVE OFFICER
PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
 
In connection with the Quarterly Report on Form 10-Q of Zendesk, Inc. for the quarterly period ended June 30, 2015 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), Mikkel Svane, as Chief Executive Officer of Zendesk, Inc., hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of his knowledge, the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, and the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Zendesk, Inc.

Date: August 6, 2015	 	 	 	By:	 	/s/ Mikkel Svane	
 	 	 	 	 	 	Mikkel Svane	
 	 	 	 	 	 	Chief Executive Officer
(Principal Executive Officer)	

 
Exhibit 32.2
CERTIFICATION OF CHIEF FINANCIAL OFFICER
PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
 
In connection with the Quarterly Report on Form 10-Q of Zendesk, Inc. for the quarterly period ended June 30, 2015 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), Alan Black, as Chief Financial Officer of Zendesk, Inc., hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of his knowledge, the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, and the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Zendesk, Inc.

Date: August 6, 2015	 	 	 	By:	 	/s/ Alan Black	
 	 	 	 	 	 	Alan Black	
 	 	 	 	 	 	Senior Vice President and Chief Financial Officer
(Principal Financial Officer)