Image of Jeffery W. Yabuki
With Fiserv since 2005

Jeffery W. Yabuki is the President, Chief Executive Officer and a Director of Fiserv, Inc. (NASDAQ: FISV). Headquartered in Brookfield, Wisconsin, Fiserv is a leading global provider of financial services technology solutions. The company reported $5.7 billion in revenues in 2017, with nearly 24,000 associates serving more than 12,000 clients. In 2018, Fiserv was recognized among FORTUNE® magazine's World's Most Admired Companies for a fifth consecutive year, and in 2015 was named to Forbes magazine's America's Best Employers. 

With more than 25 years of experience in the financial services industry, Yabuki joined Fiserv and its Board of Directors in 2005. Under his leadership, the company announced a long-term strategic platform transforming Fiserv from its traditional holding company model into an integrated operating company focused on providing best-in-class financial software, systems and services that enable people to move and manage money at the point of thought.

Prior to joining Fiserv, Yabuki was Executive Vice President and Chief Operating Officer at H&R Block for more than six years. Before H&R Block, Yabuki held a progression of leadership positions during 12 years at American Express, culminating with President and Chief Executive Officer of American Express Tax and Business Services.

FORTUNE and The World's Most Admired Companies are registered trademarks of Time Inc. and are used under license. From FORTUNE Magazine, February 1, 2018, March 1, 2017, March 1, 2016, March 1, 2015, and March 17, 2014 ©2018, 2017, 2016, 2015 and 2014. Time Inc. Used under license. FORTUNE and Time Inc. are not affiliated with, and do not endorse products or services of Fiserv, Inc

Image of James W. Cox
With Fiserv since 2017

James W. Cox is Executive Vice President of Corporate Development for Fiserv, Inc., responsible for driving the company’s merger, acquisition and divestiture strategy. Cox rejoined Fiserv in this role in 2017, having previously served in this role from 2006 through 2013. Cox has led the company through acquisitions that have driven differentiation in key solution areas and expanded its capabilities and scale, as well as divestitures that aligned the company with its strategic objectives. Key acquisitions he has spearheaded include CheckFree Corporation, Open Solutions, Inc. and CashEdge, each of which furthered the company’s delivery of solutions in step with the way people live and work today.

Previously, Cox served as EVP, Group President of Fiserv Health Solutions. He joined Fiserv in 2001 through the acquisition of Trewit and has 30 years of financial services experience. Prior to joining Fiserv, Cox was managing partner of Lund Koehler Cox & Arkema, LLP, now part of Baker Tilley Virchow Krause. While a practicing CPA, Cox frequently advised clients on their merger and acquisition programs.

Cox earned a bachelor’s degree in accounting at the University of Minnesota and practiced as a licensed CPA until 2000.

James W. Cox   281.5 KB
Image of Mark A. Ernst
With Fiserv since 2011

Mark A. Ernst is Chief Operating Officer at Fiserv, Inc. In this role, Ernst provides oversight leadership in several key strategic areas including integrated product delivery, service quality, business insights and optimization and the achievement of the company's operational effectiveness objectives.

Ernst was most recently deputy commissioner for Operations Support for the Internal Revenue Service, where he was responsible for technology, operations, shared services, human resources, and the chief financial office. Prior to that, he was chief executive officer of Bellevue Capital LLC, a private investment firm. Ernst led a transformation of tax and financial services at H&R Block, Inc., where he served as chief operating officer for three years and as chairman, president and chief executive officer from 2001 through 2007. His background includes more than 25 years of senior management positions in the financial services industry.

Image of Jim Grech
With Fiserv since 2016

Jim Grech is Chief Information Officer at Fiserv, Inc. He oversees information technology infrastructure and operations, corporate systems, enterprise architecture, technology governance, and leads the company’s strategic focus on next generation technology platforms.

Grech has spent nearly three decades in the financial services technology industry. He joined Fiserv from BNY Mellon, where he was executive vice president of the Technology Services Group. In that role Grech had global responsibility for all technology infrastructure platforms, including the firm’s move toward cloud-enablement. Prior to joining BNY Mellon in 2013, Grech spent six years leading infrastructure services across the enterprise at American Express. His prior career experience includes nearly seven years as chief technology officer at TD Waterhouse National Bank, preceded by roles at Merrill Lynch, Comdisco, Smith Barney, and JCPenney.

Image of Kevin P. Gregoire
With Fiserv since 2002

Kevin P. Gregoire is Group President of the Financial Institutions Group at Fiserv, Inc. In this role, Gregoire oversees the company's Card Services and Investment Services businesses.

Gregoire previously served as president of the Card Services Division at Fiserv, with responsibility for solutions including debit, credit, prepaid, and ATM processing, and the Accel™ network. Gregoire joined Fiserv in 2002 as part of the acquisition of EDS Consumer Network Services, which he joined in 1996. During his tenure, he has served in a number of diverse leadership roles including product development and management, settlement operations, risk management and security and compliance.

Gregoire has more than 17 years of experience in the financial services industry.

Gregoire started his career with the United States Army, Corps of Engineers. He holds a master's degree from the Babson Graduate School of Business in Wellesley, Mass., and a bachelor's degree from the United States Military Academy in West Point, N.Y.

Image of Robert W. Hau
With Fiserv since 2016

Robert (Bob) Hau is Chief Financial Officer and Treasurer at Fiserv, Inc. and provides oversight for all financial functions of the company.

Hau has nearly 30 years of experience in business and financial leadership roles. Prior to joining Fiserv, he was executive vice president and chief financial officer of TE Connectivity Ltd., a $12 billion global product technology company. At TE Connectivity, Hau was responsible for developing and implementing financial strategy, as well as creating the financial infrastructure necessary to drive the company’s financial direction, vision and compliance initiatives.

Previously, Hau served as chief financial officer for Lennox International Inc. Hau also spent 22 years at Honeywell International Inc. in a variety of progressive financial and operations leadership roles, including serving as chief financial officer of its Aerospace Business Group, Specialty Materials Business Group and Aerospace Electronic Systems Unit.

Hau holds a master’s degree in business administration from the USC Marshall School of Business and a bachelor’s degree in business administration from Marquette University.

Image of Lynn S. McCreary
With Fiserv since 2010

Lynn S. McCreary is Chief Legal Officer and Secretary at Fiserv, Inc. In this position, McCreary is responsible for all the legal functions of the corporation, including mergers, acquisitions and divestitures, commercial contracts, vendor negotiations, employment matters, intellectual property, litigation and government compliance. McCreary joined the company as Deputy General Counsel in March 2010. 

Prior to Fiserv, McCreary spent over 16 years in private practice, representing commercial, retail, financial and insurance companies.

Image of Devin McGranahan
With Fiserv since 2016

Devin McGranahan is Group President of Billing and Payments at Fiserv, Inc. He oversees the company’s Biller, Lending, Output Solutions and Financial Risk Management Solutions businesses.

McGranahan most recently served as a senior partner at McKinsey and Company, engaging with leading financial services companies on a broad range of strategy, payments and business-building opportunities. He also held a variety of management roles at the firm, including leader of the Global Insurance Practice and co-chair of the Global Senior Partner Election Committee. In addition, McGranahan served as co-leader of the North America Financial Services Practice. Prior to McKinsey, Devin worked in finance at Pepsico and in product engineering at General Motors.

McGranahan has more than 25 years of business and leadership experience. 

Image of Mark Paulek
With Fiserv since 2017

As Chief Human Resources Officer at Fiserv, Inc., Mark Paulek oversees human resources strategy and operations for the company. With a focus on deepening associate engagement and reinforcing the employer brand, Paulek helps ensure the 23,000 associates of Fiserv are prepared to enable best-in-class results for clients through the delivery of technology that is in step with the way people live and work today.

Paulek joined Fiserv after having served as interim Chief Human Resources Officer at The Chamberlain Group, Inc. Prior to that, he spent 15 years in senior human resource leadership positions at Honeywell International. In his most recent role at Honeywell, Paulek served as Vice President, Human Resources and Communications for its $16 billion Automation and Control Solutions business. With 25 years of human resources experience, his background also includes roles at Andersen Consulting, CNH Industrial and General Electric.

Image of Kevin P. Pennington
With Fiserv since 2012


Kevin P. Pennington is Executive Vice President at Fiserv, Inc. His focus is on acquisition integration, and he leads the real estate function for the company. 

Pennington joined Fiserv in 2012 and served for five years as Chief Human Resources Officer, establishing a foundation for organizational transformation in support of the company’s emphasis on innovation, quality and a strong employer brand.   

Prior to coming to Fiserv, Pennington served as Chief Human Resources Officer at Rogers Communications, one of Canada's largest communications companies with more than 30,000 associates and over $12 billion in annual revenue. He joined Rogers in 2005 as the Corporate Human Resources leader and was tasked with developing the HR infrastructure as the company migrated from a holding company to an integrated operating business model.



Image of Kevin J. Schultz

With Fiserv since 2014

Kevin Schultz is Group President of the Digital Banking Group at Fiserv, Inc. In this role, Schultz oversees the company’s consumer-focused electronic payment platforms and digital channel solutions.

Schultz most recently served as president of global financial services at First Data Corporation with oversight of payment processing services to financial institutions worldwide. Prior to First Data, Schultz served as global head of processing services at Visa Inc., where he managed its U.S. third party processing business, global risk products and domestic processing business expansion across all regions. Schultz began his career in 1982 at TYME Corporation, a pioneering regional ATM network, and later spent 13 years in senior leadership roles at Visa. He served as executive vice president, sales and marketing, at Global Payments Inc., prior to rejoining Visa in 2006.

Schultz has more than 30 years of experience in the payments and financial services industry. He holds a master's degree from Columbia University and a bachelor’s degree from the University of Wisconsin Milwaukee.

Image of Steve Tait
With Fiserv since 2009

Steve Tait is Chief Sales Officer at Fiserv, Inc. In this role, Tait leads the Global Sales Organization.

Previously, Tait served as Group President of International at Fiserv, leading all sales, service and delivery functions outside the U.S. Before that role, he was Group President of Depository Institution Services at Fiserv, leading Bank Solutions, Credit Union Solutions and Item Processing Solutions. He joined Fiserv in 2009 as Executive Vice President.

Prior to joining Fiserv, Tait was President and Chief Executive Officer of RSM McGladrey, an accounting, tax and consulting services firm in the U.S. and a subsidiary of H&R Block. He has also held roles at Gartner Group and Xerox Corp.

Image of Byron C. Vielehr
With Fiserv since 2013

Byron C. Vielehr is Group President of the Depository Institution Services Group at Fiserv, Inc. In this role Vielehr oversees the company’s domestic account processing businesses, which serve banks, thrifts and credit unions. 

Vielehr has more than 25 years of technology and financial services experience. Prior to joining Fiserv in 2013, he served as President of International and Global Operations for Dun & Bradstreet (D&B), where he was responsible for all D&B businesses outside of North America and led operations globally. During his tenure at D&B, which began as Chief Information Officer in 2005, Vielehr held a succession of senior executive positions, including leadership of its North American business, Global Risk Management Solutions, and D&B Sales and Marketing Solutions.

Vielehr has also held executive positions at Northstar Systems, Merrill Lynch Asset Management and Merrill Lynch Global Private Client, as well as Strong Mutual Funds, Thrivent Capital Management Corp., and Systems & Software Technology, Inc.