Executive Leadership

Click on each image to read staff biographies or scroll down to learn more about our group leaders and business and corporate development team.

Frank Abramcheck	Douglas Beck	Gerald Croan	Ellen Glover	Sudhakar Kesavan

Candice Mendenhall	Sandra Murray	Philip Mihlmester	Sergio Ostria	Isabel Reiff

Jeanne Townend	Ronald Vargo	John Wasson	Donald Zimmerman

Sudhakar Kesavan
Chairman & Chief Executive Officer

Sudhakar Kesavan serves as the Chairman and CEO of ICF International. In 1997, he was named President of the ICF Consulting Group when it was a subsidiary of ICF Kaiser. In 1999, the Group was divested from Kaiser and became a wholly owned subsidiary of the Company through a joint effort of the management and CM Equity Partners, and ICF International was launched as an independent company.

Mr. Kesavan received his Master of Science degree from the Technology and Policy Program at the Massachusetts Institute of Technology (MIT), his postgraduate diploma in Management from the Indian Institute of Management, Ahmedabad, and his Bachelor of Technology degree (chemical engineering) from the Indian Institute of Technology, Kanpur. Mr. Kesavan serves on the Board of the Rainforest Alliance, a New York based nonprofit environmental organization committed to protecting ecosystems by transforming land-use practices, business practices, and consumer behavior. 

Mr. Kesavan received the Executive of the Year award in the 2009 Greater Washington Government Contractor Awards in the large-sized firm category. In 2007, Washington SmartCEO honored him as one of the Future 50, the magazine’s honor to chief executives of the Washington metropolitan area's fastest growing companies. Learn more about Mr. Kesavan and ICF International.

John Wasson
President & Chief Operating Officer

John Wasson, President and COO, has been with ICF International since 1987. He provides day-to-day leadership of the company’s operating groups in the execution of strategies for client relationships, business growth, and development and recruiting. He holds a M.S. in Technology and Policy from the Massachusetts Institute of Technology and a B.S. in Chemical Engineering from the University of California, Davis.

Ronald Vargo
Chief Financial Officer

Ronald Vargo joined ICF International in 2010 as Chief Financial Officer. Prior to joining ICF, Mr. Vargo was executive vice president and chief financial officer of EDS, a $22 billion global technology services company that was acquired by Hewlett-Packard Company in 2008. He brings 30 years of experience as a financial and business executive to ICF International. Mr. Vargo graduated from Dartmouth College and received an MBA in Finance and General Management from Stanford University. He currently serves on the Board of Directors of Ferro Corporation.

Candice Mendenhall
Senior Vice President

Candice Mendenhall joined ICF International in 2008 as Senior Vice President of Human Resources. Prior to ICF, Ms. Mendenhall served as senior vice president of human resources and shared services at Ratner Companies and has held senior leadership positions with Performance Choice Consulting, Freddie Mac, Manchester, Inc., and Mellon Financial Corporation. She holds a B.S. from Brigham Young University.

Sandra Murray
Senior Vice President

Sandra Murray joined ICF International in 2009 as Senior Vice President of Administration and Contracts. Prior to ICF, Ms. Murray served as Senior Vice President—Finance and Business Operations at Science Applications International Corporation (SAIC), and has held leadership positions at ARINC, Honeywell Technology Solutions, and Atlantic Research Corporation. She holds an M.B.A. in Finance from Loyola College and a B.S. in Accounting from the University of Baltimore.

Business & Corporate Development

Dr. Douglas Beck
Senior Vice President

Douglas Beck has been with ICF International since 1995. He is the Director of Corporate Development. Prior to joining ICF International, he held executive positions at DRI/McGraw-Hill. Mr. Beck has a Ph.D. and M.A. in Political Science from the University of Rochester, M.B.A. in International Business from Columbia University, and B.A. in Economics and Political Science from the University of Michigan.

Gerald Croan
Executive Vice President
Corporate Strategy

Jerry Croan is the former founder and president of Caliber Associates, which was acquired by ICF International in 2005. A leader in the design and assessment of effective human services program, he has been recognized for his innovative, client-focused work by the U.S. Departments of Defense, Justice, and Health and Human Services. He holds a B.S. and a M.C.P. (city planning) from the Massachusetts Institute of Technology (MIT).

Isabel Reiff
Executive Vice President

Isabel Reiff joined ICF in 1989 and has more than 30 years of experience in public policy and program consulting. She leads the firm's business development and marketing. At ICF she has managed client engagements in housing and community development, environment, and transportation. She has also held positions with federal and local governments. She holds a B.A. from Mount Holyoke College and an M.A. in Architecture and Urban Planning from the University of California, Los Angeles.

Chairs & Group Leaders

Philip Mihlmester
Senior Vice President
Energy, Environment, & Transportation

Philip Mihlmester joined ICF International in 1999 and has 30 years of experience in the technical and management direction of engagements in the energy, environmental, and quantitative analysis areas. He also has held executive positions at Aspen Systems and Applied Management Sciences. Mr. Mihlmester has an M.S. in Operations Research from George Washington University and an A.B. in History from Columbia.