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Samuel H. Armacost Leslie G. Denend, Ph.D. Michael R. Gaulke Paul R. Johnston, Ph.D. Jon R. Katzenbach Stephen C. Riggins John B. Shoven, Ph.D.     Samuel H. Armacost Age: 70 Director Since: 1989 Principal Occupation: Chairman of the Board of SRI International since July 1998 Recent Business Experience: Mr. Armacost was a Principal of Weiss, Peck & Greer, L.L.C., an investment firm, from 1990 to 1997. In 1997, he was appointed Managing Director until his departure in June 1998. He was Managing Director of Merrill Lynch Capital Markets of Merrill, Lynch, Pierce, Fenner & Smith, Incorporated, from 1987 to August 1990, and he was Director, President, and Chief Executive Officer of Bank America Corporation from 1981 to 1986. Other Directorships: Member of the Boards of Callaway Golf Company, Chevron Corporation, Del Monte Foods Company, Franklin Resources, Inc., Sarnoff Corp., and SRI International.         Leslie G. Denend, Ph.D. Age: 68 Director Since: 2009 Principal Occupation: Director of McAfee, Inc., VeriFone, Inc. and the United Services Automobile Association Recent Business Experience: Dr. Denend was previously a member of the Board of Directors of the Company from 2001 to 2007. In addition, Dr. Denend was Chairman of the Board of the Company from June 2005 until May 2007. Dr. Denend was President of McAfee, Inc., from December 1997 until May 1998, President and CEO of Network General, Inc. from February 1993 until December 1997 and Chairman, President and CEO of Vitalink Communications Corporation from October 1990 until its acquisition by Network Systems Corp. in June 1991. Dr. Denend remained as a business unit president at Network Systems Corp. until December 1992. He was Executive Vice President at 3Com Corporation from January 1989 until October 1990. He was also a partner in McKinsey & Company until January 1989. Other Directorships: Member of the Boards of McAfee, Inc., VeriFone, Inc. and the United States Automobile Association         Michael R. Gaulke Age: 63 Director Since: 1994 Principal Occupation: Executive Chairman since 2009 Recent Business Experience: Mr. Gaulke joined the Company in September 1992, as Executive Vice President and Chief Financial Officer. He was named President in March 1993, and he was appointed as a member of the Board of Directors of the Company in January 1994. He assumed his current role of Chief Executive Officer in June 1996. He was named Chairman in May of 2007, and Executive Chairman in 2009. Prior to 1992, he held senior executive positions at Raynet Corporation and Spectra Physics. Other Directorships: Member of the Board of Cymer, Inc. and the Board of Trustees of the Palo Alto Medical Foundation.           Paul R. Johnston, Ph.D. Age: 55 Director Since: 2009 Principal Occupation: Chief Executive Officer of the Company since 2009 and President of the Company since 2007 Recent Business Experience: Dr. Johnston joined the Company in 1981 and has assumed increasingly responsible positions over time, most recently being named Chief Operating Officer in 2003, President in 2007, and Chief Executive Officer in 2009. In these roles, Dr. Johnston was initially responsible for Exponent’s Health and Environmental businesses before assuming management of all of the Company’s consulting groups. He has also managed the Company’s network of offices. He is a Registered Professional Civil Engineer in the State of California.         Jon R. Katzenbach Age: 76 Director Since: 1997 Principal Occupation: Founding Partner of Katzenbach Partners, L.L.C., a consulting firm, since 1999 Recent Business Experience: Mr. Katzenbach was with McKinsey & Company from 1959 until January 1999. During his 39 years of service, Mr. Katzenbach managed several of their offices, including McKinsey & Company's San Francisco and New York offices for five years each. Mr. Katzenbach served as Chairman of several governance committees and was elected to the Shareholders' Committee in 1972, which he served on for nearly 20 years. Authorships: Authored: Teams at the Top; Peak Performance; and Why Pride Matters More Than Money Co-authored: The Wisdom of Teams; Real Change Leaders; and The Discipline of Teams         Stephen C. Riggins Age: 64 Director Since: 2003 Recent Business Experience: Mr. Riggins spent 30 years with KPMG LLP where he practiced as a certified public accountant and was in a number of senior leadership positions including being a member of KPMG's Board of Directors and its Management Committee. Other roles included serving as Western Area Managing Partner-Assurance; Managing Partner-Information, Communication, and Entertainment; Managing Partner-Silicon Valley office and Los Angeles Office.         John B. Shoven, Ph.D. Age: 62 Director Since: 2007 Principal Occupation: Professor of Economics, Stanford University since 1973 Recent Business Experience: Dr. Shoven is currently the Charles R. Schwab Professor of Economics at Stanford University, where he has taught since 1973. He is also the Wallace R. Hawley Director of the Stanford Institute for Economics Policy Research, a position he has held since November 1999 and earlier served in that capacity from 1989 to 1993. He served as Chairman of the Economics Department at Stanford University from 1986 to 1989 and as Dean of the School of Humanities and Sciences from 1993 to 1998. Dr. Shoven earned his Ph.D. in economics from Yale University and his bachelor’s degree in physics from University of California, San Diego. Dr. Shoven is a Fellow of the American Academy of Arts and Sciences, a recipient of the Paul A. Samuelson Award for Outstanding Scholarly Writing on Lifelong Financial Security, an award winning teacher at Stanford, and has published more than one hundred professional articles and twenty books. He is also Chairman of the Board of Cadence Design Systems and a member of the Board of American Century Funds.