UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

(RULE 14a-101)

INFORMATION REQUIRED IN PROXY STATEMENT

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

(Amendment No.     )

Filed by the Registrant  ☒                             Filed by a Party other than the Registrant  ☐

Check the appropriate box:

ENDURANCE INTERNATIONAL GROUP HOLDINGS, INC.

(Name of Registrant as Specified in its Charter)

(Name of Person(s) Filing Proxy Statement, if Other Than the Registrant)

Payment of Filing Fee (Check the appropriate box):

ENDURANCE INTERNATIONAL GROUP HOLDINGS, INC.

10 Corporate Drive, Suite 300

Burlington, Massachusetts 01803

NOTICE OF ANNUAL MEETING OF STOCKHOLDERS

To Be Held on May 23, 2018

The 2018 Annual Meeting of Stockholders of Endurance International Group Holdings, Inc. will be held on Wednesday, May 23, 2018 at 2:00 p.m., Eastern time, at Boston Marriott Burlington at One Burlington Mall Road, Burlington, Massachusetts 01803. At the Annual Meeting, stockholders will consider and act upon the following matters:

1. To elect three Class II directors nominated by our Board of Directors, each to serve for a term ending in 2021, or until his successor has been duly elected and qualified;

2. To approve, in a non-binding advisory “say-on-pay” vote, the compensation of our named executive officers, as described in the “Compensation Discussion and Analysis,” executive compensation tables and accompanying narrative disclosures in this proxy statement;

3. To ratify the appointment of BDO USA, LLP, an independent registered public accounting firm, as our independent auditors for the year ending December 31, 2018; and

4. To transact such other business as may properly come before the Annual Meeting or any adjournment or postponement thereof.

Stockholders of record on our books at the close of business on March 26, 2018, the record date for the Annual Meeting, are entitled to notice of, and to vote at, the Annual Meeting or any adjournment thereof.

If you are a stockholder of record, please vote over the internet at www.proxyvote.com, by telephone at (800) 690-6903 or, if you elected to receive printed materials, by mail. If your shares are held in “street name,” that is, held for your account by a broker or other nominee, you will receive instructions from the holder of record that you must follow for your shares to be voted.

Whether or not you plan to attend the Annual Meeting in person, we urge you to take the time to vote your shares.

You may obtain directions to the location of the Annual Meeting on our website at http://ir.endurance.com/events-and-presentations. We intend to limit attendance at the Annual Meeting to stockholders or their legal proxies. To be admitted, you must bring photo identification and—if you are a beneficial owner of shares held in “street name”—proof of stock ownership on the record date. If you plan on attending, please RSVP by Friday, May 18, 2018 to Angela White at 781-852-3250, or by e-mail to ir@endurance.com.

By Order of the Board of Directors,

DAVID C. BRYSON

Secretary

April 13, 2018

TABLE OF CONTENTS

ENDURANCE INTERNATIONAL GROUP HOLDINGS, INC.

10 Corporate Drive, Suite 300

Burlington, Massachusetts 01803

PROXY STATEMENT

For the 2018 Annual Meeting of Stockholders on May 23, 2018

This proxy statement and the accompanying proxy card are being furnished in connection with the solicitation of proxies by our Board of Directors for use at the 2018 Annual Meeting of Stockholders, to be held on Wednesday, May 23, 2018 at 2:00 p.m., Eastern time, at Boston Marriott Burlington at One Burlington Mall Road, Burlington, Massachusetts 01803, and at any adjournment or postponement thereof.

All proxies will be voted in accordance with the instructions contained in those proxies. If no choice is specified, the proxies will be voted in favor of the matters set forth in the accompanying Notice of Annual Meeting of Stockholders.

This proxy statement, the accompanying proxy card and our 2017 Annual Report to Stockholders were first made available to stockholders on or about April 13, 2018.

IMPORTANT NOTICE REGARDING AVAILABILITY OF PROXY MATERIALS

For the 2018 Annual Meeting of Stockholders on May 23, 2018

This proxy statement and the 2017 Annual Report to Stockholders are available for viewing, printing and downloading at www.proxyvote.com.

A copy of our Annual Report on Form 10-K (including financial statements and schedules) for the year ended December 31, 2017, as filed with the Securities and Exchange Commission, or SEC, except for exhibits, will be furnished without charge to any stockholder upon written or oral request to:

Endurance International Group Holdings, Inc.

Attn: Investor Relations

10 Corporate Drive, Suite 300

Burlington, Massachusetts 01803

Telephone: (781) 852-3250

This proxy statement and our Annual Report on Form 10-K for the year ended December 31, 2017 are also available on the SEC’s website, www.sec.gov.

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IMPORTANT INFORMATION ABOUT THE ANNUAL MEETING AND VOTING

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MANAGEMENT AND CORPORATE GOVERNANCE

Board of Directors

The following table sets forth the name, age and position of each of our directors as of March 26, 2018.

Jeffrey H. Fox has served as a director and president and chief executive officer of our company since August 2017. Mr. Fox is a principal of The Circumference Group LLC, an investment and advisory firm which he founded in 2009. He was president and chief executive officer of Convergys Corporation, a customer management company, from 2010 to November 2012, and has served as chairman of its board of directors since 2012. Prior to that, Mr. Fox held multiple senior leadership roles at Alltel Corporation over a 13 year period, including chief operating officer, Group President—Shared Services, and Group President—Alltel Information Services. In addition to his board position at Convergys Corporation, Mr. Fox currently serves on the board of Avis-Budget, Inc., and within the last five years, he has served on the board of Blackhawk Network Holdings, Inc. We believe Mr. Fox is qualified to serve on our Board due to his extensive experience leading strategy and operations for public companies in the technology, information services and telecom industries.

James C. Neary has served as our chairman since December 2011. Mr. Neary is a managing director and partner at Warburg Pincus and joined the firm in 2000. Mr. Neary is head of the firm’s industrial and business services group and a member of the firm’s executive management group. From 2010 to 2013, he led the firm’s late-stage efforts in the technology and business services sectors. From 2004 to 2010, he was co-head of the firm’s technology, media and telecommunications investment efforts. From 2000 to 2004, he led the firm’s capital markets activities. Prior to joining Warburg Pincus, Mr. Neary was a managing director at Chase Securities and worked in the leveraged finance group at Credit Suisse First Boston. Currently, he is a director of Wex Inc., and within the last five years, Mr. Neary has served on the board of Fidelity National Information Services, Inc. We believe Mr. Neary is qualified to serve on our Board due to his extensive knowledge of strategy and business development, wide-ranging experience as a director and as chairman of other companies and his deep familiarity with our company.

Dale Crandall has served as a director of our company since June 2013. Mr. Crandall founded Piedmont Corporate Advisors, Inc., a private financial consulting firm, in 2003 and currently serves as its president. Mr. Crandall also serves as a director of Bridgepoint Education, Inc. Previously, Mr. Crandall served as lead trustee of The Dodge & Cox Mutual Funds, and as a director of Ansell Limited, Coventry Health Care, Inc. and Metavante Technologies, Inc. We believe Mr. Crandall is qualified to serve on our Board due to his strong foundation in financial reporting and accounting matters for complex organizations and his extensive executive leadership and management experience.

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Joseph P. DiSabato has served as a director of our company since December 2011. Mr. DiSabato worked for Goldman Sachs from 1988 to 1991, rejoined Goldman Sachs in 1994 and has served as managing director in its Principal Investment Area since 2000. We believe Mr. DiSabato is qualified to serve on our Board due to his extensive knowledge of financial and accounting matters and his familiarity with our company.

Tomas Gorny has served as a director of our company since 2007. Mr. Gorny also co-founded and served as chief executive officer and chairman of iPower, Inc. from 2001 to 2007 and, following our acquisition of iPower in 2007, he remained in a senior leadership role at iPower until 2010. Mr. Gorny is the chief executive officer and chairman of Unitedweb, Inc., a company that invests in internet and technology companies, where he has served since 2008 when he co-founded the company. We believe Mr. Gorny is qualified to serve on our Board due to his extensive experience in our industry and detailed knowledge of our company and our business.

Michael D. Hayford has served as a director of our company since June 2013. From October 2009 until his retirement in June 2013, Mr. Hayford served as the chief financial officer at Fidelity National Information Services, Inc. Prior to joining Fidelity National Information Services, Mr. Hayford was with Metavante Technologies, Inc., a bank technology processing company, from 1992 through September 2009. He served as the chief operating officer at Metavante Technologies from May 2006 through September 2009 and as the president from November 2008 through September 2009. From November 2007 through October 2009, Mr. Hayford served on the board of Metavante Technologies. Mr. Hayford is a member of the board of directors and chairman of the audit committee of West Bend Mutual Insurance Company. We believe Mr. Hayford is qualified to serve on our Board due to his extensive executive leadership and management experience, as well as his background in financial reporting and accounting matters.

Peter J. Perrone has served as a director of our company since December 2011. Mr. Perrone is the chief financial officer at AtScale, Inc., a business intelligence and big data analytics company, where he has served since September 2017. Previously, Mr. Perrone served as the chief financial officer of Percolate Industries, Inc., a marketing technology company, from December 2015 to August 2017, and was with Limelight Networks, Inc., a digital presence management company, where he served as its chief financial officer from November 2013 to December 2015, and as its senior vice president from August 2013 to November 2013. Mr. Perrone also served as a director of Limelight Networks from 2006 to August 2013. From 1999 to August 2013, Mr. Perrone was with Goldman Sachs, where he had served as managing director in its Principal Investment Area since 2007. We believe Mr. Perrone is qualified to serve on our Board due to his experience evaluating and providing guidance and strategic advice to technology and software companies, as well as his deep familiarity with our company.

Chandler J. Reedy has served as a director of our company since December 2011. Mr. Reedy is a managing director and partner at Warburg Pincus, where he has also served as an associate and as a principal, and joined the firm in 2004. Mr. Reedy leads the firm’s late-stage investments in the technology and business services sectors. Prior to joining Warburg Pincus, he worked in UBS’ Investment Banking Division where he advised corporations and financial sponsors on mergers and acquisitions and leveraged financings. We believe Mr. Reedy is qualified to serve on our Board due to his extensive knowledge of strategy and business development, wide-ranging experience as a director and deep familiarity with our company.

Justin L. Sadrian has served as a director of our company since December 2011. Mr. Sadrian is a managing director and partner at Warburg Pincus and joined the firm in 2000. Mr. Sadrian focuses on the firm’s media, internet and information investments. Prior to joining the firm, Mr. Sadrian worked at JP Morgan in its investment banking and private equity groups. Within the last five years, Mr. Sadrian has served on the board of Grubhub Inc. We believe Mr. Sadrian is qualified to serve on our Board due to his extensive knowledge of strategy and business development, wide-ranging experience as a director and deep familiarity with our company.

There are no family relationships among any of our directors or executive officers.

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Composition of the Board of Directors

Our Board currently consists of nine members. The current members of our Board were elected in compliance with the provisions of a stockholders agreement among our company and certain holders of our common stock. See page 15 under “Related Person Transactions—Stockholders Agreement.” In particular, investment funds and entities affiliated with Warburg Pincus designated Messrs. Neary, Reedy and Sadrian, and may designate up to one additional director, for election to our Board, and investment funds and entities affiliated with Goldman Sachs designated Mr. DiSabato, for election to our Board. Our directors hold office until their successors have been elected and qualified or until the earlier of their resignation or removal.

In accordance with the terms of our restated certificate of incorporation and amended and restated bylaws, our Board is divided into three classes, each of whose members will serve for staggered three year terms. The members of the classes are divided as follows:

Our stockholders agreement provides that investment funds and entities affiliated with Warburg Pincus are entitled to designate up to:

In addition, our stockholders agreement provides that investment funds and entities affiliated with Goldman Sachs are entitled to designate one director to our Board for so long as investment funds and entities affiliated with Goldman Sachs hold an aggregate of at least 5,213,194 shares of our common stock, which represents 25% of the shares of our common stock that they held immediately following the closing of our IPO.

Our restated certificate of incorporation provides that the authorized number of directors may be changed only by our Board, subject to the rights of any holders of any series of our preferred stock; provided that the authorized number of directors may not exceed ten as long as investment funds and entities affiliated with either Warburg Pincus or Goldman Sachs are entitled to designate at least one director. Any additional directorships resulting from an increase in the number of directors will be distributed among the three classes so that, as nearly as possible, each class will consist of one-third of the directors. This classification of our Board may have the effect of delaying or preventing changes in our control or management.

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Our stockholders agreement provides that any director designated by investment funds and entities affiliated with either Warburg Pincus or Goldman Sachs may be removed with or without cause only by investment funds and entities affiliated with either Warburg Pincus or Goldman Sachs, respectively. In addition, our restated certificate of incorporation and our amended and restated bylaws provide that our directors may be removed only for cause by the affirmative vote of the holders of at least 75% of the votes that all our stockholders would be entitled to cast in an annual election of directors.

Upon the expiration of the term of a class of directors, directors in that class will be eligible to be elected for a new three-year term at the annual meeting of stockholders in the year in which their term expires. Under our majority vote standard for the election of directors, in an uncontested election, a nominee for election as a director will only be elected if the votes cast “FOR” such nominee exceed the number of votes cast “AGAINST” such nominee.

Director Independence

Our common stock is listed on the Nasdaq Global Select Market. Rule 5605 of the Nasdaq Listing Rules requires a majority of a listed company’s board of directors to be comprised of independent directors. In addition, the Nasdaq Listing Rules require that, subject to specified exceptions, each member of a listed company’s audit, compensation and nominating and corporate governance committees be independent and that audit committee members also satisfy independence criteria set forth in Rule 10A-3 under the Securities Exchange Act of 1934, as amended, or the Exchange Act. Under Rule 5605(a)(2), a director will only qualify as an “independent director” if, in the opinion of our Board, that person does not have a relationship that would interfere with the exercise of independent judgment in carrying out the responsibilities of a director. In order to be considered independent for purposes of Rule 10A-3, a member of an audit committee of a listed company may not, other than in his or her capacity as a member of the audit committee, the board of directors, or any other board committee, accept, directly or indirectly, any consulting, advisory or other compensatory fee from the listed company or any of its subsidiaries or otherwise be an affiliated person of the listed company or any of its subsidiaries.

Our Board has undertaken a review of the composition of the Board and its committees and the independence of each director. Based upon information requested from and provided by each director concerning his background, employment and affiliations, including family relationships, our Board has determined that each of our directors, with the exception of Messrs. Fox and Gorny, is an “independent director” as defined under Rule 5605(a)(2) of the Nasdaq Listing Rules. Our Board also determined that Messrs. Crandall, Hayford and Perrone, who are members of our Audit Committee, Messrs. DiSabato, Neary and Sadrian, who comprise our Compensation Committee, and Messrs. DiSabato, Neary and Reedy, who comprise our Nominating and Corporate Governance Committee, satisfy the respective independence standards for such committees established by the SEC and the Nasdaq Listing Rules, as applicable. In making such determinations, our Board considered the relationships that each such non-employee director has with our company and all other facts and circumstances our Board deemed relevant in determining independence, including the beneficial ownership of our capital stock by each non-employee director.

Board Leadership Structure

Our corporate governance guidelines provide that the roles of chairman of the Board and chief executive officer may be separated or combined. Our Board has considered its leadership structure and determined that at this time, the roles of chairman of the Board and chief executive officer should be separate. Separating the chairman and the chief executive officer positions allows our chief executive officer, Mr. Fox, to focus on running the business, while the chairman of our Board, Mr. Neary, leads the Board in its fundamental role of providing advice to and oversight of management. Mr. Neary has been an integral part of the leadership of our company and our Board since December 2011, and our Board believes that he is well situated to lead the Board in these responsibilities. Our Board believes this leadership structure is appropriate at the current time because it balances independent oversight and operational execution.

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Board Committees

Our Board has established Audit, Compensation, and Nominating and Corporate Governance Committees, each of which operates under a charter that has been approved by our Board. A copy of each committee’s charter has been posted on the corporate governance section of our website, www.endurance.com.

Audit Committee

The Audit Committee’s responsibilities include:

All audit services and all non-audit services, other than de minimis non-audit services, to be provided to us by our independent registered public accounting firm must be approved in advance by our Audit Committee.

The members of our Audit Committee are Messrs. Crandall, Hayford and Perrone. The Audit Committee met thirteen times during 2017 and acted by written consent twice.

Our Board has determined that Mr. Crandall is an “audit committee financial expert” as defined by applicable SEC rules.

Compensation Committee

The Compensation Committee’s responsibilities include:

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The members of our Compensation Committee are Messrs. DiSabato, Neary and Sadrian. The Compensation Committee met five times during 2017 and acted by written consent nine times. For additional information about the role and responsibilities of our Compensation Committee, see page 26 under “Executive Compensation—Compensation Discussion and Analysis—Setting Executive Compensation—Oversight of Executive Compensation Program.”

Nominating and Corporate Governance Committee

The Nominating and Corporate Governance Committee’s responsibilities include:

The members of our Nominating and Corporate Governance Committee are Messrs. DiSabato, Neary and Reedy. The Nominating and Corporate Governance Committee met three times during 2017 and acted by written consent once.

Compensation Committee Interlocks and Insider Participation

None of our executive officers serves, or served during 2017, as a member of the board of directors or compensation committee, or other committee serving an equivalent function, of any entity that has one or more executive officers who serve as members of our Board or our Compensation Committee. None of the members of our Compensation Committee is an officer or employee of our company, nor has any member ever been an officer or employee of our company.

Code of Business Conduct and Ethics

We have adopted a written code of business conduct and ethics that applies to our directors, officers and employees, including our principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions. We have posted a current copy of the code on our website, www.endurance.com. In addition, we intend to post on our website all disclosures that are required by law or the Nasdaq Listing Rules concerning any amendments to, or waivers from, any provision of the code.

Director Nomination Process

The process followed by our Nominating and Corporate Governance Committee to identify and evaluate director candidates (other than directors appointed by Warburg Pincus and Goldman Sachs pursuant to our stockholders agreement) includes requests to Board members and others for recommendations, meetings from time to time to evaluate biographical information and background material relating to potential candidates and interviews of selected candidates by members of the Nominating and Corporate Governance Committee and our Board.

In considering whether to recommend any particular candidate for inclusion in the Board’s slate of recommended director nominees, the Nominating and Corporate Governance Committee applies the criteria

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specified in our corporate governance guidelines. These criteria include the candidate’s integrity, business acumen, commitment to understanding our business and industry, experience, conflicts of interest and ability to act in the interests of stockholders. The Nominating and Corporate Governance Committee does not assign specific weights to particular criteria and no particular criterion is a prerequisite for any prospective nominee.

Our Board does not have a formal policy with respect to diversity, but our corporate governance guidelines provide that the backgrounds and qualifications of the directors considered as a group should provide a significant breadth of experience, knowledge and abilities that will assist the Board in fulfilling its responsibilities.

The director biographies on pages 7 to 8 indicate each director nominee’s experience, qualifications, attributes and skills that led the Board to conclude that each should continue to serve as a member of our Board. Our Board believes that each of the director nominees has had substantial achievement in his professional and personal pursuits, and possesses talents and experience that will contribute to our success.

Stockholder Nominations

Stockholders may recommend individuals to our Nominating and Corporate Governance Committee for consideration as potential director candidates by submitting their names, together with appropriate biographical information and background materials and a statement as to whether the stockholder or group of stockholders making the recommendation has beneficially owned more than 5% of our common stock for at least a year as of the date such recommendation is made, to Nominating and Corporate Governance Committee, c/o Corporate Secretary, Endurance International Group Holdings, Inc., 10 Corporate Drive, Suite 300, Burlington, MA 01803. Assuming that appropriate biographical and background material has been provided on a timely basis, the Nominating and Corporate Governance Committee will evaluate stockholder-recommended candidates by following substantially the same process, and applying the same criteria, as it follows for candidates submitted by others.

Stockholders also have the right under our bylaws to directly nominate director candidates, without any action or recommendation on the part of the Nominating and Corporate Governance Committee or the Board, by following the procedures set forth under “Stockholder Proposals for 2019 Annual Meeting.” If the Board determines to nominate a stockholder-recommended candidate and recommends his or her election, then his or her name will be included in our proxy statement and proxy card for the next annual meeting. Otherwise, candidates nominated by stockholders in accordance with the procedures set forth in the bylaws will not be included in our proxy statement and proxy card for the next annual meeting.

Board Meetings and Attendance

Our Board met, either in person or telephonically, ten times during 2017 and acted by written consent twelve times. During 2017, each incumbent director attended at least 75% of the aggregate of the number of Board meetings held while he was a member of the Board and the number of meetings held by all committees on which he then served.

Our directors are invited to attend our annual meetings of stockholders, but are not required to do so. None of our current directors attended our 2017 annual meeting of stockholders. Mr. Fox did not join us as president, chief executive officer and a member of our Board until after our 2017 annual meeting of stockholders.

Communicating with the Independent Directors

Our Board will give appropriate attention to written communications that are submitted by stockholders, and will respond if and as appropriate. The chairman of the Board, with the assistance of our chief legal officer, is primarily responsible for monitoring communications from stockholders and for providing copies or summaries to the other directors as he considers appropriate.

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Communications are generally forwarded to all directors, or to specified individual directors, if applicable, if they relate to important substantive matters and include suggestions or comments that our chief legal officer considers to be important for the directors to know. In general, communications relating to corporate governance and corporate strategy are more likely to be forwarded than communications relating to ordinary business affairs, personal grievances and matters as to which we receive repetitive or duplicative communications.

Stockholders who wish to send communications to our Board should address such communications to Board of Directors, c/o Corporate Secretary, Endurance International Group Holdings, Inc., 10 Corporate Drive, Suite 300, Burlington, MA 01803.

Executive Officers Who Are Not Directors

The following table sets forth the name, age and position of each of our executive officers who are not also directors as of March 26, 2018.

Marc Montagner has served as our chief financial officer since September 2015. From May 2017 to February 2018, Mr. Montagner also served as our interim chief operating officer. Mr. Montagner was previously chief financial officer at LightSquared, Inc. (now Ligado Networks) from January 2012 until August 2015. Previously, he had been executive vice president of sales, marketing and strategy at LightSquared from 2009 to 2010. On May 14, 2012, LightSquared filed for reorganization under Chapter 11 of the U.S. Bankruptcy Code. From June 2010 to December 2011, Mr. Montagner served as managing partner of DuPont Circle Partners LLC. Prior to joining LightSquared in February of 2009, Mr. Montagner was managing director and co-head of the Global Telecom, Media and Technology Merger and Acquisition Group at Banc of America Securities. Until 2006, he was senior vice president, corporate development and M&A with the Sprint Nextel Corporation. Prior to 2002, Mr. Montagner was a managing director in the Media and Telecom Group at Morgan Stanley.

John Orlando has served as our chief marketing officer since August 2016. Prior to joining Endurance, Mr. Orlando held several positions at Constant Contact, Inc., which we acquired in February 2016. Mr. Orlando served as chief marketing officer of Constant Contact from January 2016 to August 2016, vice president of customer and product marketing from October 2014 to January 2016 and vice president of product marketing from September 2013 to October 2014. From 2012 to 2013, Mr. Orlando was general manager and chief operating officer of RoundBuzz, a subsidiary of Sixth Sense Media, and from 2010 to 2012 he served as executive vice president of worldwide marketing and business development of Sixth Sense Media.

David C. Bryson has served as our chief legal officer since July 2013. He served as an executive vice president from May 2011 until July 2013 and as our general counsel from April 2005 until July 2013, as well as from 2000 to 2002. From 2002 to 2004, Mr. Bryson served as chief regulatory counsel at FleetBoston Financial Corporation.

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RELATED PERSON TRANSACTIONS

Other than compensation arrangements for our directors and named executive officers, which are described elsewhere in the “Executive Compensation” section of this proxy statement, below we describe transactions since January 1, 2017 to which we were a party or will be a party, in which:

Commercial Arrangements with Related Parties

Tregaron India Holdings, LLC, dba GlowTouch Technologies, provides us with a range of India-based outsourced services, including email- and chat-based customer and technical support, billing support, compliance monitoring, domain registrar support, marketing support, network monitoring, engineering and development support and web design and web building services. Certain of these services are provided to us by GlowTouch Technologies through its affiliates, including Diya Systems (Mangalore) Private Limited, or Diya, Glowtouch Technologies Pvt. Ltd, or Glowtouch, and Touch Web Designs, LLC, or Touch Web.

Diya provides outsourced sales and support services, as well as electricity and associated IT systems, to certain of our India-based businesses. Diya also leases office space to us pursuant to a deed of lease which extends through March 31, 2022, although we may terminate the lease early subject to payment of specified termination fees. Currently, rent under the lease is approximately $15,000 per month based on current exchange rates and increases by 5% annually through the end of the term.

Vidya Ravichandran and Indira Ravichandran, the sister and mother, respectively, of Hari Ravichandran, our former chief executive officer and current holder of more than 5% of our capital stock, together with Vidya Ravichandran’s spouse, are collectively majority owners of GlowTouch Technologies. Dr. V. Ravichandran, the father of Hari Ravichandran, is director of both Diya and Glowtouch and Indira Ravichandran is managing director of Diya and director of Glowtouch. Dr. V. Ravichandran and Indira Ravichandran are both members of the boards of directors of Diya and Glowtouch. Vidya Ravichandran is president of GlowTouch Technologies and Touch Web. In 2017, we recorded expenses of $14.8 million for the services provided to us and office space leased to us by GlowTouch Technologies and its affiliates.

Interactive Business Services, LLC, or IBS, provides website security and performance products that we and IBS offer to our customer base. Mr. Ravichandran and our director Mr. Gorny own a majority of IBS. Under our primary agreement with IBS, we pay IBS $675,000 per year for specified website security products provided to our customers. The agreement also involves revenue share arrangements between the parties, a minimum sales commitment by IBS and an agreement by us to use IBS as the exclusive external sales organization for a designated set of website security products for our major U.S. operated brands. The agreement has an initial term of five years ending in November 2019, although we may terminate it early subject to payment of specified termination fees. We may also terminate the agreement without penalty if IBS does not meet its minimum sales commitment for specified periods or in certain other specified circumstances. We also have two much smaller agreements with IBS relating to our India business and a small non-strategic web hosting brand, respectively, pursuant to which we pay IBS a revenue share for sales of IBS products and services and exclusively offer IBS for website security solutions to customers of these businesses. In 2017, we recorded expenses of $4.3 million in connection with our relationship with IBS, including these two smaller agreements.

Nextiva, Inc., or Nextiva, provides voice over internet protocol, or VOIP, phone services to several of our office locations including Burlington, Massachusetts and Tempe, Arizona. Mr. Gorny is the chief executive officer, a director and the majority owner of Nextiva. In 2017, we paid Nextiva approximately $145,000 for VOIP phone services.

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Registration Rights Agreement

We entered into a second amended and restated registration rights agreement, dated October 25, 2013, or the 2013 registration rights agreement, with certain holders of our common stock, including our principal stockholders, pursuant to which we have agreed to register the sale of shares of our common stock under specified circumstances. As of March 26, 2018, holders of a total of 65,693,919 shares of our common stock have the right to require us to register these shares under the Securities Act of 1933, as amended, or the Securities Act, under specified circumstances. After registration pursuant to these rights, these shares will become freely tradable without restriction under the Securities Act.

We may be required by investment funds and entities affiliated with Warburg Pincus or Goldman Sachs to register all or part of their shares of common stock in accordance with the Securities Act and the 2013 registration rights agreement. The net aggregate offering price of shares that investment funds and entities affiliated with Warburg Pincus or Goldman Sachs propose to sell in any underwritten offering must be at least $50 million, or such holder must propose to sell all of such holder’s shares if the net aggregate offering price of such shares is less than $50 million. We are not obligated to effect more than three demand registrations at the request of investment funds and entities affiliated with Warburg Pincus and one demand registration at the request of investment funds and entities affiliated with Goldman Sachs, or effect more than one marketed underwritten offering in any consecutive 90-day period without the consent of investment funds and entities affiliated with either Warburg Pincus or Goldman Sachs. There is no limitation on the number of unmarketed underwritten offerings that we may be obligated to effect at the request of investment funds and entities affiliated with either Warburg Pincus or Goldman Sachs. We have specified rights to delay the filing or initial effectiveness of, or suspend the use of, any registration statement filed or to be filed in connection with an exercise of a holder’s demand registration rights.

In addition, if we propose to file a registration statement under the Securities Act with respect to specified offerings of shares of our common stock, we must allow holders of registration rights to include their shares in that registration. These registration rights are subject to specified conditions and limitations, including the right of the underwriters to limit the number of shares to be registered and our right to delay a registration statement under specified circumstances. Pursuant to the 2013 registration rights agreement, we are required to pay all registration expenses and indemnify each participating holder with respect to each registration of registrable shares that is completed.

Stockholders Agreement

We entered into a stockholders agreement, dated October 24, 2013, which we refer to as the stockholders agreement, with certain holders of our common stock, including investment funds and entities affiliated with Warburg Pincus and Goldman Sachs. The stockholders agreement contains agreements among the parties with respect to the election of our directors, certain restrictions on the issuance and transfer of shares and certain corporate governance matters. The material terms of the stockholders agreement are described below.

Director Designees; Chairman

Under the terms of the stockholders agreement, investment funds and entities affiliated with Warburg Pincus are entitled to designate up to:

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In addition, investment funds and entities affiliated with Goldman Sachs are entitled to designate up to one director to our Board for so long as investment funds and entities affiliated with Goldman Sachs hold an aggregate of at least 5,213,194 shares of our common stock, which represents 25% of the shares of our common stock that they held immediately following the closing of our IPO.

For so long as investment funds and entities affiliated with Warburg Pincus are entitled to designate at least three directors to our Board, the directors designated by investment funds and entities affiliated with Warburg Pincus will be entitled to designate the chairman of our Board.

Removal of Directors

Any director designated by investment funds and entities affiliated with Warburg Pincus or Goldman Sachs may be removed with or without cause only by investment funds and entities affiliated with Warburg Pincus or Goldman Sachs, as applicable.

Quorum

For so long as investment funds and entities affiliated with Warburg Pincus have the right to designate at least one director for election to our Board and for so long as investment funds and entities affiliated with Goldman Sachs have the right to designate at least one director for election to our Board, in each case, a quorum of our Board will not exist without at least one director designee of each of Warburg Pincus and Goldman Sachs present at such meeting; provided that if a meeting of our Board fails to achieve a quorum due to the absence of a director designee of Warburg Pincus or Goldman Sachs, as applicable, the presence of at least one director designee of Warburg Pincus or Goldman Sachs, as applicable, will not be required in order for a quorum to exist at the next meeting of our Board.

Approval Rights

For so long as investment funds and entities affiliated with Warburg Pincus have the right to designate at least three directors for election to our Board, in addition to any other vote required by applicable law, certain actions required or permitted to be taken by our stockholders and certain specified corporate transactions may be effected only with the affirmative vote of 75% of our Board, including:

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For so long as investment funds and entities affiliated with Goldman Sachs have the right to designate one director for election to our Board, the approval of the director designated by investment funds and entities affiliated with Goldman Sachs will be required for amendments to certain agreements with us if such amendments are disproportionately favorable to investment funds and entities affiliated with Warburg Pincus as compared to investment funds and entities affiliated with Goldman Sachs.

Corporate Opportunities

To the fullest extent permitted by law, we have, on behalf of ourselves, our subsidiaries and our and their respective stockholders, renounced any interest or expectancy in, or in being offered an opportunity to participate in, any business opportunity that may be presented to Warburg Pincus, Goldman Sachs or any of their respective affiliates, partners, principals, directors, officers, members, managers, employees or other representatives, and no such person has any duty to communicate or offer such business opportunity to us or any of our subsidiaries. Further, no such person shall be liable to us or any of our subsidiaries or any of our or its stockholders for breach of any duty, as a director or officer or otherwise, by reason of the fact that such person pursues or acquires such business opportunity, directs such business opportunity to another person or fails to present such business opportunity, or information regarding such business opportunity, to us or our subsidiaries. This exculpation from liability does not apply in the case of any such person who is a director or officer of ours, where such business opportunity is expressly offered to such director or officer in writing solely in his or her capacity as a director or officer of ours.

Indemnification Agreements

Our restated certificate of incorporation provides that we will indemnify our directors and officers to the fullest extent permitted by Delaware law. In addition, we have entered into indemnification agreements with all of our directors and executive officers. These indemnification agreements require us, among other things, to indemnify each such director and executive officer for some expenses, including attorneys’ fees, judgments, fines and settlement amounts incurred by him or her in any action or proceeding arising out of his or her service as one of our directors or executive officers, as applicable.

Although directors designated for election to our Board by investment funds and entities affiliated with either Warburg Pincus or Goldman Sachs may have certain rights to indemnification, advancement of expenses or insurance provided or obtained by investment funds and entities affiliated with either Warburg Pincus or Goldman Sachs, respectively, we have agreed in our stockholders agreement that we will be the indemnitor of first resort, will advance the full amount of expenses incurred by each such director and, to the extent that investment funds and entities affiliated with either Warburg Pincus or Goldman Sachs or their insurers make any payment to, or advance any expenses to, any such director, we will reimburse those investment funds and entities and their insurers for such amounts.

Transactions with Goldman Sachs

Certain affiliates of The Goldman Sachs Group, Inc., including GS Capital Partners VI Fund, L.P., GS Capital Partners VI Offshore Fund, L.P. and related entities, or the Goldman Sachs Funds, beneficially own

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approximately 10.9 % of our outstanding capital stock, and Mr. DiSabato, one of our directors, is a managing director at Goldman Sachs. See page 48 under “Principal Stockholders” and page 7 under “Management and Corporate Governance.”

In December 2015, we entered into a three-year interest rate cap with a subsidiary of Goldman Sachs & Co. which limits our exposure to interest rate increases on $500.0 million of our outstanding debt. In 2016, we paid approximately $3.0 million to a subsidiary of Goldman Sachs & Co. as a premium for this interest rate cap. No further premiums are payable under this interest rate cap.

Concurrently with our acquisition of Constant Contact, Inc. in February 2016, we entered into a $735 million first lien incremental term loan facility, or the Incremental Term Loan Facility, and a $165 million revolving credit facility, or the New Revolving Facility (which replaced our previously existing $125 million revolving credit facility). Our wholly owned subsidiary EIG Investors Corp. also issued 10.875% senior notes, or the Notes, in the aggregate principal amount of $350.0 million due 2024. An affiliate of Goldman Sachs & Co. provided loans in the aggregate principal amount of $312.4 million under the Incremental Term Loan Facility and a commitment in the aggregate principal amount of $57.6 million under the New Revolving Facility, and Goldman Sachs & Co. purchased approximately $148.8 million worth of the Notes. In connection with the issuance of the Notes, we agreed to assist the initial purchasers, including Goldman Sachs & Co., in marketing the Notes and Goldman Sachs & Co. sold their portion of the Notes in 2016.

In connection with the issuance of the Notes, we entered into a registration rights agreement with the initial purchasers of the Notes, including Goldman Sachs & Co. Pursuant to this registration rights agreement, in November 2016, we filed an exchange offer registration statement with respect to a registered offer, or the Exchange Offer, to exchange the Notes for substantially identical notes, or the Exchange Notes, except that the Exchange Notes are registered under the Securities Act and the transfer restrictions and registration rights and related additional interest provisions applicable to the Notes do not apply to the Exchange Notes. The Exchange Offer was consummated on January 30, 2017.

In November 2016, we also filed a registration statement providing for the registration of certain secondary transactions in the Exchange Notes by Goldman Sachs & Co. and its affiliates. This registration statement remains effective.

In June 2017, we refinanced our then outstanding term loans, including the Incremental Term Loan Facility, or the 2017 Refinancing. The 2017 Refinancing repaid both our term loan facilities and replaced them with a new $1,697.3 million first lien term loan facility with a maturity date of February 9, 2023. In connection with the 2017 Refinancing, a subsidiary of Goldman Sachs & Co., Goldman Sachs Lending Partners LLC, served in a group of joint bookrunners and joint lead arrangers. In that capacity, we paid Goldman Sachs Lending Partners LLC an arrangement fee of $0.5 million and reimbursements for an immaterial amount of expenses.

Arrangements with Executive Officers and Directors

For a description of the compensation arrangements we have with our executive officers and directors, see page 40 under “Executive Compensation—Employment and Compensation Arrangements with Named Executive Officers” and page 46 under “Executive Compensation—Director Compensation.”

Policies and Procedures for Related Person Transactions

Our Board has adopted written policies and procedures for the review of any transaction, arrangement or relationship in which our company is a participant, the amount involved exceeds $120,000, and one of our executive officers, directors, director nominees or 5% stockholders (or their immediate family members), each of whom we refer to as a “related person,” has a direct or indirect material interest.

If a related person proposes to enter into such a transaction, arrangement or relationship, which we refer to as a “related person transaction,” the related person must report the proposed related person transaction to our

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chief legal officer. The policy calls for the proposed related person transaction to be reviewed and, if deemed appropriate, approved by the Audit Committee. Whenever practicable, the reporting, review and approval will occur prior to entry into the transaction. If advance review and approval is not practicable, the Audit Committee will review, and, in its discretion, may ratify the related person transaction. The policy also permits the chairman of the Audit Committee to review and, if deemed appropriate, approve proposed related person transactions that arise between Audit Committee meetings, subject to ratification by the Audit Committee at its next meeting. Any related person transactions that are ongoing in nature will be reviewed annually.

A related person transaction reviewed under the policy will be considered approved or ratified if it is authorized by the Audit Committee after full disclosure of the related person’s interest in the transaction. As appropriate for the circumstances, the Audit Committee will review and consider:

The Audit Committee may approve or ratify the transaction only if it determines that, under all of the circumstances, the transaction is in or is not inconsistent with our company’s best interests. The Audit Committee may impose any conditions on the related person transaction that it deems appropriate.

In addition to the transactions that are excluded by the instructions to the SEC’s related person transaction disclosure rule, our Board has determined that transactions that are specifically contemplated by provisions of our restated certificate of incorporation and amended and restated bylaws do not create a material direct or indirect interest on behalf of related persons and, therefore, are not related person transactions for purposes of this policy.

The policy provides that transactions involving compensation of executive officers shall be reviewed and approved by the Compensation Committee in the manner specified in its charter.

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REPORT OF THE AUDIT COMMITTEE

The Audit Committee of the Board of Directors has reviewed the audited financial statements of Endurance International Group Holdings, Inc. (the “Company”) for the fiscal year ended December 31, 2017 and discussed them with the Company’s management and BDO USA, LLP, the Company’s independent registered public accounting firm.

The Audit Committee has also received from, and discussed with, the Company’s independent registered public accounting firm various communications that the Company’s independent registered public accounting firm is required to provide to the Audit Committee, including the matters required to be discussed by Public Company Accounting Oversight Board Auditing Standard No. 1301 (Communications with Audit Committees).

The Audit Committee has received the written disclosures and the letter from the Company’s independent registered public accounting firm required by applicable requirements of the Public Company Accounting Oversight Board regarding the independent registered public accounting firm’s communications with the Audit Committee concerning independence, and has discussed with the Company’s independent registered public accounting firm its independence.

Based on the review and discussions referred to above, the Audit Committee recommended to the Company’s Board of Directors that the audited financial statements be included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 for filing with the Securities and Exchange Commission.

By the Audit Committee of the Board of Directors of Endurance International Group Holdings, Inc.

Dale Crandall, Chairman

Michael Hayford

Peter J. Perrone

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EXECUTIVE COMPENSATION

Compensation Discussion and Analysis

Our Compensation Discussion and Analysis describes our executive compensation program, including the 2017 compensation of our named executive officers, or NEOs, who are listed below:

Executive Overview

Business Overview and 2017 Performance Highlights

We are a leading provider of cloud-based platform solutions designed to help small- and medium-sized businesses, or SMBs, succeed online. We serve approximately 5.051 million subscribers globally with a range of products and services that help SMBs get online, get found and grow their businesses. All of our products and services fall into one of our three reportable segments, as follows:

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Our 2017 financial results reflected a year of transition as we turned our focus to attracting subscribers with higher long-term revenue potential and on improving the product, customer support and user experience for key strategic brands. Changes in revenue, net loss and net cash provided by operating activities are summarized below (in thousands):

Our total subscriber base decreased during 2017, due primarily to subscriber attrition in our non-strategic brands, which we are managing to optimize cash flow rather than to acquire new subscribers. These brands had a negative impact on cash billings, changes in deferred revenue, revenue, and subscriber growth in 2017. We expect total subscribers to continue to decrease for the foreseeable future.

In 2018, we plan to make engineering investments across our web presence, email marketing and domain businesses. We expect that these investments will focus primarily on enhancing our product capabilities and user experience. We also intend to invest in simplifying and integrating our operations in order to allow us to operate more effectively and efficiently.

Please see our Annual Report on Form 10-K filed with the SEC on February 22, 2018, particularly “Management’s Discussion and Analysis” and “Risk Factors,” for further discussion of our 2017 results and the risks affecting our business.

Factors Influencing 2017 Executive Compensation

2017 was also a year of transition in our management team. Our Compensation Committee made its 2017 compensation decisions in a framework that involved several challenges, including the following:

More specifically, in April 2017, we announced that our Board and Mr. Ravichandran had adopted a CEO transition plan, which provided that Mr. Ravichandran would remain chief executive officer and continue to serve as a member of our Board while we conducted a search to identify his successor. Mr. Ravichandran resigned as CEO on August 22, 2017, when Mr. Fox joined us as our president and CEO. Mr. Ravichandran left

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the company on November 20, 2017 following a brief transition period, as contemplated by the transition and separation agreement (which we refer to as the “transition agreement”) that we entered into with him upon the adoption of the CEO transition plan. With the exception of a one-year extension of Mr. Ravichandran’s exercise period for vested options, the severance provided under the transition agreement was consistent with what he was entitled to receive under his employment agreement and his 2015 performance-based restricted stock agreement in the event of his termination without cause. Please see “2017 Executive Compensation—Hari Ravichandran” starting on page 29 below.

In September 2015, Mr. Ravichandran received a performance-based restricted stock award which provided him the opportunity to earn up to 3,693,754 shares of our common stock based on the company’s attainment of an adjusted free cash flow per share measure, as described below on page 29 under “Hari Ravichandran—Performance-Based Restricted Stock Award”. This award (referred to as the “PRSA”) was a multi-year award designed to incentivize growth in free cash flow, and reflected Mr. Ravichandran’s contributions as a founder and executive of the company since its inception in 1997. Mr. Ravichandran forfeited 55% of the shares subject to the award in connection with his departure from the company. The PRSA is not indicative of our expected future executive compensation. The Compensation Committee expects that future executive long-term equity incentive compensation will be based on its evaluation of several factors, including the company’s performance, the relevant executive’s performance, and benchmarking data from then-relevant peer companies.

In addition to Mr. Ravichandran’s departure, Ms. Andreasen ceased serving as chief administrative officer and chief people officer on September 1, 2017 and left the company on November 1, 2017.

In August 2017, we hired Jeffrey H. Fox as our president and chief executive officer. The Board selected Mr. Fox due to his extensive experience leading strategy and operations for public companies in the technology, information services and telecom industries, including his track record of successfully simplifying complex organizations. Please see “2017 Executive Compensation—Jeffrey H. Fox” starting on page 27 below for information on Mr. Fox’s compensation.

Key Features of Executive Compensation Program

Our executive compensation is designed to deliver compensation in accordance with company and individual performance. Our executive compensation programs are intended to:

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The key elements, compensation objectives and principles of our overall 2017 executive compensation program, and information on how these relate to company and individual performance, are summarized in the table below.

Executive Compensation Best Practices

Our executive compensation program features a number of best practices that are designed to focus our NEOs on our long-term performance and to align their interests with those of our stockholders generally:

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Setting Executive Compensation

Oversight of Executive Compensation Program

Our Compensation Committee is responsible for overseeing our executive compensation program. Our Compensation Committee reviews and approves the compensation of our chief executive officer and our other executive officers after taking into account such factors as our financial and operational performance, the chief executive officer’s recommendations with respect to the compensation of his direct reports, the input of our human resources leadership, its own assessment of the performance of each executive officer, market data for comparable positions and prevailing industry compensation trends and practices. Our Compensation Committee has full discretion to approve, modify or reject any compensation change recommended by our chief executive officer for other executive officers.

The Compensation Committee has the ability to delegate certain of its responsibilities to subcommittees. The Compensation Committee may also delegate to executive officers the ability to approve grants under our stock incentive plans to employees who are not executive officers or directors.

Our Compensation Committee has engaged Exequity, LLP, or Exequity, an independent compensation consulting firm, to advise it on executive compensation, equity plan design and related corporate governance matters. In 2017, Exequity advised our Compensation Committee with respect to Mr. Fox’s compensation, the composition of our executive compensation peer group, evaluating and benchmarking our executive compensation programs in relation to peer group practices, and benchmarking our stock incentive plan utilization and overhang rates in relation to peer group practices. The Compensation Committee has assessed Exequity’s independence from management as required by the Nasdaq Listing Rules and has concluded that Exequity’s engagement does not present a conflict of interest.

Benchmarking of Executive Compensation for 2017

The Compensation Committee evaluates our executive compensation program based on our business and talent development strategies, the Committee members’ business judgment and a group of peer companies. For 2017, this group consisted of the following 18 companies that were in similar or complementary industries, had comparable market capitalizations and revenue, and/or were competitors for key executive talent:

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The Compensation Committee reviewed compensation data from this peer group as a reference to provide context for setting 2017 target pay opportunities for our executive officers.

The Compensation Committee also reviewed data from the 2016 Radford Global Technology Survey from companies with $500 million to $1 billion in revenue and companies with $1 billion to $3 billion in revenue for the same purpose.    

We do not target a specific, relative percentile positioning for total direct compensation, or the elements of total direct compensation, for NEO pay levels. Instead, we review total direct compensation for each position and the mix of elements to ensure that compensation is adequate to attract and retain key NEOs.

Compensation Risk

We believe that risks arising from our compensation policies and practices are not reasonably likely to have a material adverse effect on our company, as we believe we have allocated compensation among base salary and short- and long-term compensation opportunities in a manner that does not encourage excessive risk taking. We have reached this conclusion based on the following factors:

2017 “Say-On-Pay” Vote

More than 99% of the votes cast at our 2017 Annual Meeting of Stockholders held on April 26, 2017 voted to approve the compensation of our NEOs. The Compensation Committee considered these results when making decisions on 2017 executive compensation; however, other factors, particularly our management transitions described on page 23 under “Factors Influencing 2017 Executive Compensation,” had a greater impact on our executive compensation program during 2017.

2017 Executive Compensation

This section describes the key components of 2017 compensation of Mr. Fox, Mr. Ravichandran and our other NEOs.

Jeffrey H. Fox

2017 Base Salary and Bonus

Mr. Fox’s base salary was $750,000 during 2017. Since Mr. Fox joined us on August 22, 2017, he was not eligible to earn an annual cash bonus under our 2017 MIP, but is eligible to participate in our annual MIP for 2018 and thereafter with a target bonus percentage of 100% of base salary paid for the applicable year.

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2017 Long-Term Equity Incentives

In connection with Mr. Fox joining the company, our Compensation Committee and Board granted him an equity award under our Amended and Restated 2013 Stock Incentive Plan with a total value of $10,375,000 as of August 11, 2017. This award, or the “Initial Equity Award,” was split between an award of 1,032,500 restricted stock units (referred to as the “RSU Award”) and an option to purchase 612,419 shares of our common stock (referred to as the “Stock Option Grant”). Two Hundred Eighty-Two Thousand Five Hundred (282,500) of the restricted stock units subject to the RSU Award vested immediately upon Mr. Fox’s hire date, but are subject to a requirement that Mr. Fox hold the shares underlying such restricted stock units until August 22, 2020, his death or disability (as defined in his employment agreement), or a change in control of the company (as defined in his employment agreement). The remaining 750,000 restricted stock units subject to the RSU Award vest over a three-year period, with 250,000 of such restricted stock units vesting annually on August 22, the anniversary of his hire date. The Stock Option Grant vests over a three-year period, with one-third of the total number of shares subject to the Stock Option Grant vesting on August 22, 2018 and the remainder vesting in equal monthly installments thereafter.

The Compensation Committee designed the Initial Equity Award in part as an inducement for Mr. Fox, an experienced public company chief executive officer, to join the company during a time of significant strategic and operational transition. Our Board considered Mr. Fox’s professional background particularly well suited to our needs, specifically his extensive operational and relevant industry experience and his track record of successfully simplifying complex corporate operations. See “Management and Corporate Governance—Board of Directors” for additional information about Mr. Fox’s background. In addition, due to its mid-year 2017 timing, the Initial Equity Award was intended to cover a period of 18 months.

Perquisites

In addition to the benefits that we provide to all employees generally (which are further discussed on page 34 under “Other NEOs—Benefits and Perquisites”), we reimburse Mr. Fox for a portion of his expenses for use of his private aircraft to travel between his home in Arkansas and our headquarters in Massachusetts. Mr. Fox is a long-time resident of Little Rock, Arkansas, and performs his duties for the company from various locations, including his home in Little Rock, our corporate headquarters in Burlington, and our other corporate locations. We believe Mr. Fox’s travel by private aircraft benefits the company by allowing Mr. Fox to use his time efficiently and conduct company business confidentially during flights. In 2017, we reimbursed Mr. Fox for approximately $248,000 in private aircraft expenses for travel between Arkansas and our Massachusetts headquarters. In 2018, the Compensation Committee and Mr. Fox agreed that reimbursements for flights between Arkansas and Massachusetts will be limited to $225,000 per year. Mr. Fox does not receive any gross-up payments for personal taxes he incurs on these reimbursements.

2018 Developments

On February 9, 2018, our Compensation Committee and Board increased Mr. Fox’s base salary from $750,000 to $800,000 and approved an award of 137,931 restricted stock units to Mr. Fox. The restricted stock units will vest over three years, with one-third vesting each year on the anniversary of the grant date. In approving this base salary increase and RSU award, our Compensation Committee and Board took into account Mr. Fox’s progress in driving operational improvements and his agreement to limit to $225,000 the annual amount of reimbursable expenses relating to travel between his residence in Arkansas and our headquarters in Massachusetts, as discussed above under “Perquisites.”

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Hari Ravichandran

Base Salary and Bonus

Mr. Ravichandran’s base salary was $200,000 during 2017. He was not eligible for a bonus in 2017, consistent with an amendment to his employment agreement effective October 1, 2015. Mr. Ravichandran left the company on November 20, 2017.

Performance-Based Restricted Stock Award

In September 2015, our Compensation Committee and Board approved the grant of a performance-based restricted stock award, or PRSA, to Mr. Ravichandran. The PRSA provided an opportunity for Mr. Ravichandran to earn up to 3,693,754 shares of our common stock, or the Award Shares, over a three-year period beginning on July 1, 2015 and ending on June 30, 2018, or the Performance Period. Mr. Ravichandran earned 1,661,439 Award Shares, or 45% of the total possible Award Shares, for the period beginning on July 1, 2015 and ending on December 31, 2017, the last date of the quarter in which his employment terminated, and forfeited the remaining 2,032,315 Award Shares.

Under the PRSA, Mr. Ravichandran could earn Award Shares during each calendar quarter during the Performance Period (each, a “Performance Quarter”) if the company achieved a pre-established threshold, target or maximum level of free cash flow per share for the Performance Quarter. Free cash flow per share was defined in the award agreement as Unlevered Free Cash Flow (as reported), as defined in our Form 8-K filed on August 4, 2015, less interest paid¹, divided by the number of outstanding shares of our common stock (excluding the Award Shares) at the end of the applicable Performance Quarter or Performance Year, each as defined below. The threshold, target and maximum levels of free cash flow per share were designed to be reasonably attainable, difficult but attainable, and challenging, respectively. The award structure was specifically designed to incentivize performance in excess of the target level by accelerating the number of Award Shares Mr. Ravichandran would have received for results above target.

If our free cash flow per share was less than the threshold level for a Performance Quarter, no Award Shares would be earned during that Performance Quarter, otherwise approximately 139,915 shares, 195,881 shares or 307,812 shares would be earned for achievement of the threshold, target or maximum level, respectively, for a Performance Quarter, with linear interpolation used to determine the number of Award Shares between threshold and target or target and maximum. Award Shares that were not earned during a Performance Quarter could be earned later during the then current twelve month period from July 1^st to June 30^th during the Performance Period (each, a Performance Year) at a threshold, target or maximum level of free cash flow per share for the Performance Year. If free cash flow per share was less than the threshold level for a Performance Year, no Award Shares would be earned during that Performance Year, otherwise approximately 559,660 shares, 783,524 shares or 1,231,251 shares would be earned for achievement of the threshold, target or maximum level, respectively, for a Performance Year, with linear interpolation used to determine the number of Award Shares between threshold and target or target and maximum. Award Shares earned due to meeting quarterly performance goals for Performance Quarters during a Performance Year counted towards the Award Shares that could be earned due to meeting an annual performance goal for that Performance Year.

Mr. Ravichandran’s last day of employment was November 20, 2017. His departure was treated as a termination without cause under his PRSA agreement, and accordingly Mr. Ravichandran was entitled to receive any Award Shares he earned for previous Performance Quarters, together with the number of Award Shares that he earned for the Performance Quarter in which his employment ended (but no less than the target number of

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Award Shares for such Performance Quarter). Because the company’s free cash flow per share exceeded the maximum level for the Performance Quarter ended December 31, 2017, Mr. Ravichandran earned 307,812 Award Shares for that Performance Quarter.

The following table summarizes Award Shares that were earned by Mr. Ravichandran under the PRSA:

Other 2017 Compensation

In addition to his base salary, Mr. Ravichandran received approximately $51,000 in severance payments for 2017, as further described on page 43 under “Employment and Compensation Arrangements with Named Executive Officers—Hari Ravichandran.” Mr. Ravichandran did not receive any perquisites or benefits during 2017, other than the benefits that we provide to all employees generally and umbrella liability insurance coverage that we provide to our executives (both of which are further discussed on page 34 under “Other NEOs—Benefits and Perquisites”).

Other NEOs

Base Salary

During 2017, the base salaries for Messrs. Montagner, Orlando and Bryson were increased as shown in the table below. The increase for Mr. Montagner primarily reflected expanded duties and responsibilities, and the increases for Messrs. Orlando and Bryson were primarily adjustments to align with internal peers and peer group benchmarking data for target cash compensation for similar positions. Ms. Andreasen’s base salary remained unchanged from 2016.

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The chart below shows the 2016 and 2017 base salaries as of the end of each year for our NEOs other than Messrs. Fox and Ravichandran:

2017 Management Incentive Plan (MIP)

Our annual bonuses are granted under the MIP, a non-equity incentive plan which is designed to reward our NEOs for our achievement of designated performance targets for a fiscal year. Mr. Ravichandran did not participate in the 2017 MIP. Mr. Fox was not eligible to participate in the 2017 MIP, but will participate in future MIPs, beginning with 2018.

For 2017, the MIP had two pre-established targets: a GAAP revenue target weighted at 50% and an adjusted EBITDA target weighted at 50%. These targets were defined in the 2017 MIP as follows:

Adjusted EBITDA for the purposes of the 2017 MIP also excluded an $8 million reserve for two SEC investigations that we accrued and began to exclude from our adjusted EBITDA metric in the fourth quarter of 2017. This reserve relates to our ongoing discussions with the Boston Regional Office of the SEC regarding a potential resolution of its investigations of Endurance and our subsidiary Constant Contact, which is further discussed in our Annual Report on Form 10-K filed with the SEC on February 22, 2018.

The 2017 MIP provided that the company’s percentage achievement of the target for each of the GAAP revenue and adjusted EBITDA metrics would be evaluated separately, and the payout percentage under each metric would be weighted and added to the weighted payout percentage for the other metric to determine the level of bonus pool funding. The company was required to reach a minimum of 88% achievement of each metric

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target before that metric would contribute to the bonus pool funding, at which point the payout for that metric would be as follows:

Metric target payouts would be determined using linear interpolation between the stated percentages. If the percentage achievement of the target for a metric were equal to or greater than 106%, the maximum payout percentage for that metric would be 175%.

If the bonus pool was funded, individual bonuses would be calculated based upon the combined payout percentage and each individual’s eligible earnings, target bonus percentage, and individual performance.

The 2017 MIP provided that all payments and bonus pool funding were at the discretion of the Board or the Compensation Committee, and that the Board or the Compensation Committee could make adjustments to achievement of performance metrics and payout levels under the 2017 MIP to address the impact of any mergers, acquisitions or other unexpected activities, developments, trends or events. In addition, achievement of the performance metrics could include or exclude any of the following events that occur during the performance year: any reorganization or restructuring transactions; extraordinary nonrecurring items; and significant acquisitions or divestitures.

The 2017 targets, actual achievement, percentage achievement of target and payout percentages for each of GAAP revenue and adjusted EBITDA were as follows:

Our actual achievement as a percentage of the target for each of the GAAP revenue and adjusted EBITDA metrics was evaluated separately and mapped to a payout percentage, using linear interpolation as described above. Each resulting payout factor (shown in the “Payout Percentage—Unweighted” column in the table directly above) was then given a weight of 0.5, and added to the weighted payout percentage for other metric to arrive at a combined company payout factor of 97.5%.

The company payout factor of 97.5% resulted in 97.5% funding of the bonus pool, such that bonuses for the NEOs who participated in the 2017 MIP and were employed by us at the time the MIP determinations were made by our Compensation Committee in February 2018 (which consisted of Messrs. Montagner, Orlando and Bryson) were calculated by multiplying each person’s eligible earnings by his target bonus percentage and 97.5%. The output of this calculation for each participating NEO was then reviewed by the Compensation Committee for increase or decrease based upon its subjective assessment of each individual’s performance, including input and recommendations from Mr. Fox. The Committee then applied an individual performance multiplier, which could be less than, equal to or greater than 100%, to adjust the bonuses based on individual performance. The

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Committee selected a 100% performance multiplier for all participating NEOs for 2017, reflecting its assessment that our 2017 results reflected strong efforts by each of these individuals.

The following table provides further detail about the 2017 annual bonus as calculated under the MIP for each participating NEO:

During 2017, the target bonus percentages for Messrs. Montagner and Orlando were increased effective July 1, 2017, from 75% to 100% of annual eligible earnings for Mr. Montagner and from 40% to 75% of annual eligible earnings for Mr. Orlando. Annual eligible earnings under the MIP are calculated as actual base salary paid for the year, and therefore reflect changes in base salary during the year. The target bonus percentage increase for Mr. Montagner primarily reflected expanded duties and responsibilities, and the increase for Mr. Orlando was primarily an adjustment to align with internal peers and peer group benchmarking data for similar positions. Mr. Bryson’s target bonus percentage remained at 60%.

Discretionary Bonuses

In May 2017, the Compensation Committee approved discretionary bonuses to Messrs. Montagner and Bryson in the amounts of $200,000 and $70,000, respectively, in recognition of their significant efforts with respect to the SEC investigations of Endurance and Constant Contact.

2017 Long-Term Equity Incentives

In May 2017, for NEOs other than Messrs. Fox and Ravichandran, we granted annual long-term incentives in the form of restricted stock units. Our Compensation Committee chose to use RSUs (rather than a split between RSUs or restricted stock awards and stock options as we had done in past years) in order to promote retention during the management transition period beginning with our announcement of the CEO transition plan, as well as to reduce the impact of our annual grants on the number of shares subject to outstanding awards.

The following table shows the RSU awards granted to our NEOs in 2017. The number of shares subject to these RSUs was determined by dividing the “2017 LTI Value” shown below by the closing price of a share of our common stock on the grant date of the relevant award.

RSUs granted to Messrs. Orlando and Bryson and Ms. Andreasen vest over three years, with one-third vesting on each anniversary of the grant date.

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RSUs granted to Mr. Montagner vest over two years, with one-half vesting on each anniversary of the grant date. The Compensation Committee approved a two-year vesting schedule for Mr. Montagner’s grant in light of the additional management responsibilities he took on following the adoption of the CEO transition plan discussed above, including his assumption of the role of interim chief operating officer following the departure of our prior COO.

Upon Ms. Andreasen’s departure from the company on November 1, 2017, the vesting of 27,336 of the RSUs shown in the table above was accelerated in recognition of her contributions to the company during her tenure, which began in 2012.

Benefits and Perquisites

For 2017, we provided our NEOs with the same benefits that are provided to all employees generally, including medical, dental and vision benefits, group term life and long-term disability insurance and participation in our 401(k) plan. We also provided our NEOs with umbrella liability insurance coverage, at our expense. In addition, we reimbursed Mr. Fox for certain private airplane expenses, as described more fully on page 28 under “Jeffrey H. Fox—Perquisites.”

Other 2017 Compensation

Ms. Andreasen also received approximately $86,000 in severance payments for 2017, as further described on page 43 under “Employment and Compensation Arrangements with Named Executive Officers—Kathy Andreasen.”

2018 Developments

On February 9, 2018, our Compensation Committee and Board approved an award of 75,000 restricted stock units to Mr. Montagner in recognition of his contribution to the company in the role of interim chief operating officer during the CEO transition process discussed above. These restricted stock units will vest over three years, with one-third vesting each year on the anniversary of the grant date.

Severance and Change in Control Benefits

We believe that severance protections can play a valuable role in attracting and retaining key executive officers. In addition, severance protections in a change in control context help ensure leadership continuity and continued commitment during a time of transition, including a sustained focus on the best interests of stockholders and our company. Accordingly, we provide severance and change in control protection to our NEOs pursuant to their respective employment agreements and equity award agreements.

For detailed information about severance and change in control arrangements for our NEOs, see “Employment and Compensation Arrangements with Named Executive Officers” and “Potential Payments upon Termination or Change in Control” below.

Deductibility of Executive Compensation

Section 162(m) of the Internal Revenue Code of 1986, as amended, or the Code, generally disallows a tax deduction to public companies for compensation in excess of $1 million paid to each of the company’s chief executive officer and the three most highly compensated executive officers (other than the chief executive officer and chief financial officer). Pursuant to tax legislation signed into law on December 22, 2017 (the “Tax Act”), for taxable years beginning after December 31, 2017, the Section 162(m) deduction limitation is expanded so that it also applies to compensation in excess of $1 million paid to a public company’s chief financial officer. Historically, compensation that qualified under Section 162(m) as performance-based compensation was exempt

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from the deduction limitation. However, subject to certain transition rules, the Tax Act eliminated the qualified performance-based compensation exception. As a result, for taxable years beginning after December 31, 2017, all compensation in excess of $1 million paid to each of the executives described above (other than certain grandfathered compensation or compensation paid pursuant to certain equity awards granted during the transition period following our IPO) will not be deductible by us.

Compensation Committee Report

Our Compensation Committee has reviewed and discussed the Compensation Discussion and Analysis required by Item 402(b) of Regulation S-K with our management. Based on this review and discussion, the Compensation Committee recommended to our Board that the Compensation Discussion and Analysis be included in this proxy statement.

By the Compensation Committee of the Board of Directors of Endurance International Group Holdings, Inc.

James C. Neary, Chairman

Joseph P. DiSabato

Justin L. Sadrian

Summary Compensation Table

The following table summarizes the total compensation paid or earned by our NEOs during the years indicated.

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2017 Grants of Plan-Based Awards

The following table sets forth information regarding grants of plan-based awards made to our NEOs during the year ended December 31, 2017.

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Outstanding Equity Awards at 2017 Fiscal Year-End

The following table sets forth information regarding outstanding stock awards held as of December 31, 2017 by our NEOs.

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2017 Option Exercises and Stock Vested

The following table sets forth information regarding stock acquired upon vesting by our NEOs during the year ended December 31, 2017.

Employment and Compensation Arrangements with Named Executive Officers

Jeffrey H. Fox

Employment Agreement

We are party to an employment agreement with Mr. Fox dated August 11, 2017. Mr. Fox’s employment commenced on August 22, 2017; his employment is at-will and may be terminated by either us or Mr. Fox for any reason, at any time. The material terms of Mr. Fox’s employment agreement are summarized below.

Base Salary and Bonuses; Airplane Usage

Mr. Fox’s base salary was $750,000 during 2017 and was increased to $800,000 effective February 2018, and he is eligible to earn an annual bonus starting in 2018 in accordance with the MIP, with a target opportunity of 100% of his base salary. Pursuant to his employment agreement, Mr. Fox is also entitled to reimbursement for expenses for use of his private aircraft for company business purposes at a rate of $4,125 per hour. In 2018, the Compensation Committee and Mr. Fox agreed that reimbursements for flights between his home in Arkansas and our headquarters in Massachusetts will be limited to $225,000 per year. Mr. Fox does not receive any gross-up payments for personal taxes he incurs on reimbursement for these flights. Please see page 28 for additional discussion of Mr. Fox’s compensation, including aircraft reimbursements.

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Payments upon Termination of Employment

In the event Mr. Fox is terminated without cause or he resigns his employment for good reason (as such terms are defined in his employment agreement), he will be entitled to the following severance payments:

In order to receive these severance payments, Mr. Fox must sign a general release in favor of us and our affiliates and abide by specified restrictive covenants, including two year non-competition and non-solicitation covenants, as well as confidentiality and non-disparagement obligations.

If Mr. Fox’s employment is terminated due to death or disability, he (or his estate or beneficiaries) will be entitled, subject to specified restrictive covenants, to payment of his annual bonus for the year of termination based on the company’s actual performance against the performance goals established under the MIP for such year, prorated based on the portion of the year during which Mr. Fox provided services to the company. In addition, to the extent Mr. Fox holds any vested stock options upon such a termination, the vested options will remain exercisable for a period of three years (or the remainder of the option term, if shorter) following the termination date.

Equity Acceleration upon a Change in Control

Pursuant to Mr. Fox’s employment agreement and the award agreements governing his equity awards, in the event that, within nine months prior to a change in control (provided that negotiations related to the change in control are ongoing on the termination date) or within two years after a change in control, Mr. Fox is terminated without cause (other than due to disability or death) or he resigns his employment for good reason, he will be entitled to full acceleration of all unvested equity awards he holds as of his termination date, on the later to occur of the completion of the change in control and his termination date. Furthermore, in the event the acquiring or succeeding corporation in a change in control does not agree to assume Mr. Fox’s outstanding equity awards as of immediately prior to the change in control, or to substitute substantially equivalent awards for the outstanding equity awards, then all of Mr. Fox’s then outstanding but unvested equity awards will vest in full immediately prior to the change in control, and any such awards subject to performance standards will vest at the target amount associated with their grant, unless the Board or Compensation Committee determines that a higher level of vesting is appropriate.

Marc Montagner

Employment Agreement

We are party to an employment agreement with Mr. Montagner dated August 3, 2015. Mr. Montagner’s employment agreement had an initial term of two years, beginning on September 15, 2015, and automatically renews for successive one-year terms, unless either we or Mr. Montagner provides written notice of non-renewal to the other party at least 90 days prior to the expiration of the then-current term, or if it is terminated earlier in accordance with its terms. The material terms of Mr. Montagner’s employment agreement are summarized below.

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Base Salary and Bonus

Mr. Montagner’s annual base salary is $500,000 and he is eligible to earn an annual bonus in accordance with the MIP, with a target opportunity of 100% of his base salary.

Payments upon Termination of Employment

In the event Mr. Montagner is terminated without cause or he resigns his employment for good reason (as such terms are defined in his employment agreement), he will be entitled to continued payment of his base salary for a period of 12 months, or if the termination occurs within the one-year period following a change in control (as such terms are defined in his employment agreement), 24 months; payment of his annual bonus at target over a period of 12 months, or if the termination occurs within the one-year period following a change in control, over a period of 24 months; and reimbursement on a monthly basis for the COBRA premiums that he would be required to pay to continue group health insurance coverage for a period of up to 18 months following his termination. In order to receive these severance payments, Mr. Montagner must sign a general release in favor of us and our affiliates and abide by specified restrictive covenants, including 18-month non-competition and non-solicitation covenants, as well as confidentiality and non-disparagement obligations.

Equity Acceleration upon a Change in Control

The award agreements governing Mr. Montagner’s equity awards provide that in the event we undergo a change in control and Mr. Montagner’s employment is terminated without cause by us within the one-year period following the change in control, any remaining unvested portion of his equity awards will vest in full as of his termination date.

John Orlando and David C. Bryson

Employment Agreement

We are party to an employment agreement with Mr. Orlando dated March 27, 2017 and an employment agreement with Mr. Bryson dated March 7, 2016. With the exception of base salary and target bonus percentage, which are summarized in the table below, both of the employment agreements have substantially identical terms.

Base Salary and Bonus

Term

Each of the employment agreements has an initial term of two years and then automatically renews for successive one-year terms, unless either we or the executive provides written notice of non-renewal to the other party at least 90 days prior to the expiration of the then-current term, or if it is terminated earlier in accordance with its terms. Mr. Orlando’s initial term began on February 14, 2017 and Mr. Bryson’s initial term began on February 22, 2016.

Payments upon Termination of Employment

In the event the executive is terminated without cause or resigns his employment for good reason (as such terms are defined in the applicable employment agreement), the executive will be entitled to continued payment

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of his base salary for a period of 12 months, or if the termination occurs within the one-year period following a change in control (as defined in the applicable employment agreement), 18 months; payment of annual bonus at target over a period of 12 months, or if the termination occurs within the one-year period following a change in control, over a period of 18 months; and reimbursement on a monthly basis for the COBRA premiums that the executive would be required to pay to continue group health insurance coverage for a period of up to 18 months following his termination. In order to receive these severance payments, the executive must sign a general release in favor of us and our affiliates and abide by specified restrictive covenants, including 18-month non-competition and non-solicitation covenants, as well as confidentiality and non-disparagement obligations.

Equity Acceleration upon a Change in Control

Except for Mr. Orlando’s RSUs described in footnotes 7 and 8 to the “Outstanding Equity Awards at 2017 Fiscal Year-End” table above, which do not provide for any acceleration, the award agreements governing each executive’s equity awards provide that in the event we undergo a change in control and the executive’s employment is terminated without cause by us within the one-year period following the change in control (as such terms are defined in the applicable award agreement), any remaining unvested portion of his equity awards will vest in full as of his termination date.

Hari Ravichandran

In April 2017, we announced that we entered into a Transition, Separation and Release of Claims Agreement with Mr. Ravichandran, or the transition agreement, whereby Mr. Ravichandran would remain as chief executive officer and a member of our Board while we conducted a search to identify his successor. Mr. Ravichandran ceased serving as our chief executive officer as of August 22, 2017 and his employment with us terminated effective November 20, 2017. Under the transition agreement, Mr. Ravichandran is entitled to continued payment of his base salary for a period of 24 months after his employment termination date, as well as a lump sum payment in an amount (after applicable taxes) equal to the monthly COBRA premium that he would be required to pay to continue group health insurance coverage for a period of 18 months, or approximately $32,000. In addition, the transition agreement provided that Mr. Ravichandran’s equity awards would continue to vest in accordance with their existing terms through his departure date, and extended by one year the period in which he may exercise his vested stock options. See “Potential Payments Upon Termination or Change in Control” table below.

With the exception of the additional year to exercise his vested stock options, these severance benefits are consistent with terms of Mr. Ravichandran’s employment agreement that was in effect prior to the execution of the transition agreement. In order to receive these severance payments, Mr. Ravichandran signed a general release in favor of us and our affiliates and must abide by specified restrictive covenants, including two-year non-competition and non-solicitation covenants, as well as confidentiality and non-disparagement obligations.

See page 29 under “Hari Ravichandran—Performance-Based Restricted Stock Award” for a discussion of the treatment of his PRSA upon termination of employment.

Kathy Andreasen

Ms. Andreasen ceased serving as our chief administrative officer and chief people officer as of September 1, 2017 and her employment with us terminated effective November 1, 2017. In connection with the termination of Mr. Andreasen’s employment, our employment agreement with Ms. Andreasen terminated and we entered into a separation agreement that provided for continued payment of Ms. Andreasen’s base salary for a period of 12 months, payment of her target bonus for 2017, reimbursement on a monthly basis for the COBRA premiums that she would be required to pay to continue group health insurance coverage for a period of up to 18 months following her termination, and accelerated vesting of a total of 83,200 shares of restricted stock and restricted stock units. See “Potential Payments Upon Termination or Change in Control” table below.

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In order to receive these severance payments, Ms. Andreasen signed a general release in favor of us and our affiliates and must abide by specified restrictive covenants, including 18-month non-competition and non-solicitation covenants, as well as confidentiality and non-disparagement obligations.

Potential Payments Upon Termination or Change in Control

The table below shows the benefits potentially payable to each of our NEOs if his or her employment were terminated by us without cause or by the NEO for good reason, if there were a change in control of our company (regardless of whether the NEO was terminated), if a termination without cause or for good reason took place in connection with a change in control, or in the event of the NEO’s death or disability. These amounts are calculated on the assumption that the employment termination and change in control both took place on December 31, 2017, except for the figures shown for Mr. Ravichandran and Ms. Andreasen, which reflect actual amounts paid or payable to them in connection with their separation from the company.

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Pay Ratio

Under the Dodd-Frank Wall Street Reform and Consumer Protection Act, we are required to disclose the median of the annual total compensation of our employees, the annual total compensation of our chief executive officer, and the ratio of these amounts, which are shown for the year ended December 31, 2017 in the table below:

The CEO to median employee pay ratio represents a reasonable estimate calculated in accordance with SEC regulations and guidance. Because SEC rules for identifying the median employee and calculating the pay ratio permit companies to use various methodologies and assumptions, to apply certain exclusions and to make reasonable estimates that reflect their employee populations and compensation practices, the pay ratio reported by other companies may not be comparable with the pay ratio that we have reported.

We used December 31, 2017 as the date of determination for the median employee. As of that date, our total employee population consisted of approximately 3,642 individuals, of which 2,747 were employed in the United States and 895 were employed abroad, including in India, Brazil, the Netherlands and the United Kingdom. As permitted by SEC rules, for purposes of identifying the median employee, we excluded approximately 0.6% of our non-U.S. employee population consisting of approximately 5 individuals employed in the United Kingdom, resulting in an adjusted employee population of approximately 3,637 individuals.

We identified the median employee from our adjusted employee population based on gross income for 2017 as reported on an IRS Form W-2 or foreign equivalent. We converted compensation paid to our India, Brazil and Netherlands employees to U.S. dollars using the applicable exchange rate based on the noon buying rate set forth by the Federal Reserve Board for December 29, 2017: $1.00 U.S. dollar to INR 63.8300 Indian rupees; $1.00 U.S. dollar to BRL 3.3121 Brazilian real; $1.00 U.S. dollar to €0.8318 Euro. We did not annualize the reported gross income of employees as of December 31, 2017 who joined us during 2017.

Using this methodology, we determined that the median employee was a full-time, salaried employee located in the United States with gross income for 2017 in the amount of $35,101. We then identified and calculated the elements of such employee’s compensation for 2017 pursuant to the requirements for the Summary Compensation Table set forth in Item 402(c)(2)(x) of Regulation S-K, resulting in annual total compensation of $35,471.

Since we had two chief executive officers during the year, SEC rules permit us to determine annual total CEO compensation by either combining the 2017 compensation of the former and current CEO, or using the compensation of the CEO serving as of the date we selected to identify the median employee, which was December 31, 2017. We chose the latter method, and therefore used annualized 2017 compensation for Mr. Fox, our CEO as of December 31, 2017. The total compensation reported for Mr. Fox in the Summary Compensation Table is $10,951,000, which includes a partial year’s salary and no annual bonus because Mr. Fox joined the company on August 22, 2017. To calculate the pay ratio, we annualized Mr. Fox’s salary to $750,000 and assumed a target bonus of $750,000, resulting in annual total compensation of $12,194,269, which exceeds the amount reported for him in the Summary Compensation Table by $1,243,269. In accordance with SEC rules, Mr. Fox’s annual total compensation used to calculate the pay ratio includes the full grant date fair value of his Initial Equity Award, which was intended to cover 18 months, as discussed on page 28 under “Jeffrey H. Fox—2017 Long-Term Equity Incentives.”

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Director Compensation

We compensate our directors who are neither employees of our company nor affiliates of Warburg Pincus or Goldman Sachs, or our eligible directors, for their service as directors. Accordingly, Mr. Fox, our chief executive officer, and Mr. Ravichandran, our former chief executive officer, did not receive any additional compensation for their service as a director. In addition, neither Messrs. Neary, Reedy and Sadrian, each of whom is affiliated with Warburg Pincus, nor Mr. DiSabato, who is affiliated with Goldman Sachs, receive any compensation for their service as directors.

Cash Retainers. Our eligible directors are entitled to receive cash retainer fees in consideration of their Board service as follows:

Per-Meeting Fees. In the event the Board holds more than five Board meetings in a calendar year (including special meetings held in person but excluding all telephonic Board meetings and all committee meetings), each eligible director will receive a per-meeting attendance fee of $5,000 for each Board meeting in excess of five that he attends in person during that calendar year. In 2017, the Board did not hold more than five in-person meetings, and therefore we did not pay any per-meeting fees to our directors.

Equity Compensation. On May 12, 2017, we granted each eligible director an award of 22,293 restricted stock units under our Amended and Restated 2013 Stock Incentive Plan. The shares underlying these RSUs vest on the first anniversary of the grant date. We do not have a formal policy regarding director equity awards, and we may grant each eligible director additional equity grants during 2018.

Each member of our Board is entitled to reimbursement for reasonable travel and other expenses incurred in connection with attending Board meetings and meetings for any committee on which he serves.

2017 Eligible Director Compensation

The following table sets forth information regarding the compensation of our eligible directors for their service on our Board in 2017:

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Equity Compensation Plan Information

The following table provides information as of December 31, 2017 about the securities authorized for issuance under our equity compensation plans.

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PRINCIPAL STOCKHOLDERS

The following table sets forth information with respect to the beneficial ownership of our common stock, as of March 26, 2018, by:

The number of shares beneficially owned by each stockholder is determined under SEC rules and includes voting or investment power with respect to securities. Under these rules, beneficial ownership includes any shares as to which the individual or entity has sole or shared voting power or investment power. In computing the number of shares beneficially owned by an individual or entity and the percentage ownership of that person, shares of common stock subject to options, warrants or other rights held by such person that are currently exercisable or will become exercisable within 60 days after March 26, 2018 are considered outstanding, although these shares are not considered outstanding for purposes of computing the percentage ownership of any other person. Unless otherwise indicated, the address of all listed stockholders is c/o Endurance International Group Holdings, Inc., 10 Corporate Drive, Suite 300, Burlington, Massachusetts 01803. Each of the stockholders listed has sole voting and investment power with respect to the shares beneficially owned by the stockholder unless noted otherwise, subject to community property laws where applicable. Beneficial ownership representing less than 1% is denoted with an asterisk (*).

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Section 16(a) Beneficial Ownership Reporting Compliance

Section 16(a) of the Exchange Act requires our directors, officers and beneficial owners of more than 10% of our common stock to file reports of ownership and changes of ownership with the SEC on Forms 3, 4 and 5. We believe that during 2017, our directors, officers and beneficial owners of more than 10% of our common stock timely complied with all applicable filing requirements, except that two Forms 4 were filed late on behalf of John Orlando for the sale of shares on January 4, 2017 and July 3, 2017 to satisfy tax withholding obligations in connection with the vesting of restricted stock units. In making these disclosures, we relied solely on a review of copies of such reports filed with the SEC and furnished to us and written representations that no other reports were required.

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PROPOSAL 1

ELECTION OF DIRECTORS

Our certificate of incorporation provides for a classified board. This means our Board is divided into three classes, with each class having as nearly as possible an equal number of directors. The term of service of each class of directors is staggered so that the term of one class expires at each annual meeting of the stockholders.

Our Board currently consists of nine members, divided into three classes as follows:

At each annual meeting of stockholders, directors are elected for a full term of three years to succeed those directors whose terms are expiring. Messrs. Crandall, Gorny and Sadrian are current directors whose terms expire at the Annual Meeting. Messrs. Crandall, Gorny and Sadrian are each nominated for re-election as a Class II director, with a term ending in 2021.

Unless otherwise instructed in the proxy, all proxies will be voted “FOR” the election of all of the Class II nominees identified above to a three-year term ending in 2021, each such nominee to hold office until his successor has been duly elected and qualified. Each of the nominees has indicated his willingness to serve on our Board, if elected. If any nominee should be unable to serve, the person acting under the proxy may vote the proxy for a substitute nominee designated by our Board. We do not expect that any of the nominees will be unable to serve if elected.

The Annual Meeting will be uncontested with respect to the election of directors. An uncontested election means that there are as many candidates standing for election as there are vacancies on the Board. As a result, each nominee for Class II director will only be elected if the number of votes cast “FOR” such nominee exceeds the number of votes cast “AGAINST” that nominee. See page 2 under “Important Information about the Annual Meeting and Voting” above for more information about our majority voting standard.

OUR BOARD RECOMMENDS THAT STOCKHOLDERS VOTE “FOR” THE ELECTION OF MESSRS. CRANDALL, GORNY AND SADRIAN.

PROPOSAL 2

ADVISORY VOTE ON EXECUTIVE COMPENSATION

We are providing our stockholders the opportunity to vote to approve, on a non-binding advisory basis, the compensation of our NEOs as disclosed in this proxy statement in accordance with the SEC’s rules. This proposal, which is commonly referred to as “say-on-pay,” is required by Section 14A of the Exchange Act. Section 14A of the Exchange Act also requires that stockholders have the opportunity, at least once every six years, to cast a non-binding advisory vote with respect to whether future executive compensation advisory votes will be held every one, two or three years, which is commonly referred to as “say-on-frequency.” The stockholders voted “every year” at our 2016 annual meeting of stockholders, which was adopted by our Board. As such, the next required non-binding advisory vote regarding say-on-frequency will be at our 2022 annual meeting of stockholders.

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Our executive compensation program is designed to attract, retain and reward the best possible executive talent and to align our executives’ incentives with our business goals, the creation of stockholder value, and the long-term growth of our company. Key features of our executive compensation program include:

We encourage stockholders to closely read the “Executive Compensation” section of this proxy statement beginning with the “Compensation Discussion and Analysis” on page 22, which describes in detail our executive compensation program, certain best practices that it features, factors affecting our 2017 executive compensation and the decisions made by our Compensation Committee and our Board with respect to 2017 executive compensation.

Our Board is asking stockholders to approve, on a non-binding advisory basis, the following resolution:

RESOLVED, that the compensation paid to the named executive officers of Endurance International Group Holdings, Inc., as disclosed pursuant to the compensation disclosure rules of the SEC, including the Compensation Discussion and Analysis, the compensation tables and any related material disclosed in the proxy statement of Endurance International Group Holdings, Inc., is hereby approved.

As an advisory vote, this proposal is not binding. The outcome of this advisory vote will not overrule any decision by us or our Board (or any committee thereof). However, our Compensation Committee and Board value the opinions expressed by our stockholders in their vote on this proposal and will consider the outcome of the vote when making future compensation decisions for NEOs.

OUR BOARD RECOMMENDS THAT STOCKHOLDERS VOTE TO APPROVE THE COMPENSATION OF OUR NAMED EXECUTIVE OFFICERS BY VOTING “FOR” PROPOSAL 2.

PROPOSAL 3

RATIFICATION OF APPOINTMENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

The Audit Committee has appointed the firm of BDO USA, LLP, or BDO, an independent registered public accounting firm, to audit our books, records and accounts for the year ending December 31, 2018. This appointment is being presented to the stockholders for ratification at the Annual Meeting. BDO has served as our auditor since 2008.

BDO has no direct or indirect material financial interest in our company or our subsidiaries. Representatives of BDO are expected to be present at the Annual Meeting and will be given the opportunity to make a statement on the firm’s behalf if they so desire. The representatives also will be available to respond to questions as appropriate.

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The following table summarizes BDO’s fees billed to us for each of the last two fiscal years. For the fiscal year ended December 31, 2017, audit fees include amounts not yet billed of approximately $742,333.

Our Audit Committee has adopted policies and procedures relating to the approval of all audit and non-audit services that are to be performed by our independent registered public accounting firm. This policy generally provides that we will not engage our independent registered public accounting firm to render audit or non-audit services unless the service is specifically approved in advance by our Audit Committee or the engagement is entered into pursuant to one of the pre-approval procedures described below.

From time to time, our Audit Committee may pre-approve specified types of services that are expected to be provided to us by our independent registered public accounting firm during the next 12 months. Any such pre-approval is detailed as to the particular service or type of services to be provided and is also generally subject to a maximum dollar amount.

Our Audit Committee has also delegated to the chairman of our Audit Committee the authority to approve any audit or non-audit services to be provided to us by our independent registered public accounting firm. Any approval of services by the chairman of our Audit Committee pursuant to this delegated authority is reported on at the next meeting of our Audit Committee.