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Board of Directors

Charles Drucker
Executive Chairman and CEO


Charles Drucker serves as Worldpay’s Executive Chairman and CEO, positions he has held since January 2018. Charles joined the company in 2004 as President of Vantiv where he was named CEO in 2009. Charles was selected to serve on our board of directors due to his service as Chief Executive Officer and President at Vantiv, extensive senior management experience at a number of large corporations in the payments industry, deep industry experience and intimate knowledge of the operational, financial and strategic development of our company.

Lee Adrean

Lee served as Corporate Vice President and Chief Financial Officer of Equifax, Inc. from October 2006 through May 2014. Prior to joining Equifax, he served as CFO of several other public companies in the transaction processing, internet services, and financial services industries, and served as a strategy consultant for 11 years with Bain & Company. Lee holds a B.S. in Accounting from Bucknell University and an M.B.A. from Harvard Business School. Lee’s executive experience with public companies and background in finance, accounting, risk management and corporate strategy provides insight that is beneficial to the board of directors.

Kevin Costello

Kevin has served as Executive Chairman and Chief Executive Officer of Top Tech Holdings, Inc., the parent company of HotSchedules, Inc., a provider of mobile, cloud based technology, since 2016. Previously, he was President of Ariba, Inc. from 2007 until its acquisition by SAP in 2012, and President of Ariba, an SAP Company, from 2012 until 2014. Before joining Ariba in 2002, Kevin served in various senior management positions during his 18-year career with Andersen Business Consulting. Kevin is currently a director of FinancialForce, The Rainmaker Group, KH Acquisition, LLC and PRGX Global, Inc., and was formerly a director of Rackspace Inc. and Cbeyond, Inc. Kevin holds a B.S. from the University of Illinois and is a CPA.

Mark Heimbouch
President and Chief Operating Officer


As President and Chief Operating Officer of Worldpay, Inc., Mark Heimbouch leads the company’s corporate strategy as well as mergers and acquisitions functions. He also is responsible for the centralized technology infrastructure, technology development, and security and operations teams. Mark was appointed COO of Vantiv, Inc. in April 2016 and remained in that role when the Cincinnati-based public company acquired Worldpay Group plc in January 2018. He previously served as CFO of Vantiv from 2009-2016. As CFO, Mark helped lead the company’s separation from Fifth Third Bancorp in 2009 and build its finance, accounting, audit and compliance departments. Prior to Vantiv, Mark was CFO of Trow Global Holdings and held senior positions at Jackson Hewitt Tax Service, Cendant Corporation, First Data Corporation, The Western Union Company and Deloitte.

Lisa A. Hook


Lisa most recently served as Chief Executive Officer and President of NeuStar from October 2010 to July 2018, and she is currently a director of the company. Prior to joining NeuStar, Lisa served as President and CEO of Sunrocket from 2006 to 2007. She has also held executive level posts at America Online, served in executive and special advisory roles at Time Warner, was legal adviser to the Chairman of the FCC, and was a senior attorney at Viacom International. Lisa has served as a director of Philip Morris International, Inc. since May 2018. Lisa is a graduate of Duke University and holds a J.D. from the Dickinson School of Law at Pennsylvania State University. Lisa’s leadership experience and service as a director at several public companies have provided her with insights of issues facing boards and management.

Gary L. Lauer

Since July 2017, Gary has been Executive Director and co-founder of the Eminent Series Group. Before this role, he served as Chief Executive Officer of eHealth, a position he maintained from 1999 to 2016, and Chairman of the Board of Directors from 2002 to 2016. Prior to eHealth, Gary was the CEO of MetaCreations Corporation from 1998 to December 1999, and Chairman from 1998 to 2000. In addition to senior executive positions, he began his career at International Business Machines Corp. He holds a B.S. in finance and marketing from the University of Southern California Business School. Gary’s operational and leadership experience as well as his senior executive roles at several technology companies provides beneficial insight to the board of directors.

Karen Richardson


Before being appointed as a director of Worldpay, Karen was an independent non-executive director and member of the Audit and Nomination Committees of Worldpay Group PLC. Karen has held a range of senior sales and marketing roles in technology companies, including Collabra Software between 1992 and 1994, Netscape Communications between 1994 and 1998, and Epiphany between 1998 and 2006, where she was CEO from 2003. Her experience includes global multinationals and Silicon Valley startups and she is currently a director of Exponent, Inc. Karen is a former non-executive director of BT Group and was an adviser to Silver Lake Partners.

Boon Sim

Boon most recently served as Head of the Markets Group, President, Americas, and Head of the Credit Portfolio at Temasek International (Private) Limited, an investment company based in Singapore from June 2012 to April 2016. Prior to joining Temasek, Boon held several senior positions of increasing responsibility at Credit Suisse for 20 years where he was most recently the Global Head of Mergers and Acquisitions at Credit Suisse based in New York. Boon received a Bachelor of Engineering degree from the National University of Singapore, an M.S. in Mechanical Engineering from Massachusetts Institute of Technology and a Master of Public and Private Management degree from Yale University. Boon’s experience as a strategic leader within several multinational companies provides important perspective on the global M&A and investment landscape that is beneficial to the board of directors.

Jeffrey Stiefler
Lead Director

Jeffrey currently serves on the board of directors of LogicSource. He also served on the boards of LPL Financial Corporation and VeriFone Systems. Jeffrey was Lead Director of Taleo Corporation until April 2012, served as a Venture Partner with Emergence Capital Partners from 2008 to 2013 and was the Chairman, President and CEO of Digital Insight from 2003 until 2007. Jeffrey has held a variety of positions at American Express, including President and Director. He received a B.A. from Williams College and an M.B.A. from Harvard Business School. As a former software company CEO, Jeffrey’s operational and strategic experiences are relevant to issues regularly faced by the board and also exposed him to best practices and approaches in business.