Mr. Boone Pickens, founder of BP Capital. Mr. Pickens is active in the management of the BP Capital Equity Fund and Commodity Fund. Founder of Pickens Fuel Corp., in 1997; predecessor company to Clean Energy. Mr. Pickens, was also Founder of Mesa Petroleum, and was CEO and Chairman for 40 years.

Recently retired as Chairman and President of Southern California Gas Company (SoCal), as well as San Diego Gas & Electric, Mr. Mitchell had day-to-day responsibilities for both the gas and electric utilities. Mr. Mitchell's career spanned 42 years at SoCal where he served in varying capacities. Mr. Mitchell served as Chairman of the Natural Gas Vehicle Coalition as well as Chairman of the Pacific Coast Gas Association

David R. Demers of West Vancouver, British Columbia, is a founder of Westport and has been CEO since the company was formed in March of 1995. Mr. Demers is also a member of the board of directors of Cummins Westport Inc.

Mr. Herrington served as the U.S. Secretary of Energy during the Reagan Administration from 1985 to 1989. Previously, he was the Director of Presidential Personnel and Assistant Secretary of the Navy. After government service, Mr. Herrington was the Chairman of Harcourt, Brace, Jovanovich, Inc. Mr. Herrington is active in politics in California, owns a nationally recognized steakhouse and continues developing real estate. Prior to his government service, Mr. Herrington practiced law in San Francisco.

Andrew J. Littlefair, President and CEO, of Clean Energy. Mr. Littlefair is Chairman of the Natural Gas Vehicle America (ngvamerica.org) and has been a Board Member and Officer for 10 years. Mr. Littlefair was an officer at Mesa Inc., and served in various capacities for 10 years. Mr. Littlefair served in the Reagan White House from 1983–1987.

Former Director of the U.S. Office of Management and Budget, Mr. Miller currently serves as Chairman of the Board of Governors of the United States Postal Service (USPS.) Previously, he was Chairman of the CapAnalysis Group, an economic, financial and regulatory consulting firm associated with the international law firm Howrey, LLP. During the Reagan Administration, from 1981-1985, Mr. Miller chaired the U.S. Federal Trade Commission.

Kenneth M. Socha, Senior Managing Director, joined Perseus in 1991. Mr. Socha practiced corporate and securities law and was a founder of The Clarion Securities Group Incorporated. Mr. Socha was a partner of Lane and Edson and, thereafter, of Dewey Ballantine. Mr. Socha also serves as a director of Beacon Power, Inc., Biometric Access, Chroma Energy, Inc., and Perseus Books.