Aemetis Management


Our management team consists of an experienced team of leaders who understand the difficult challenges involved in developing and commercializing innovative technologies in rapidly growing markets. They possess vast knowledge of and passion for solving the world’s dependence on petroleum through the development of renewable chemical and fuel alternatives. The management team of Aemetis is ideally suited to solve the challenges present in the emerging industrial biotechnology industry. Please find out more about our management team by reading their individual biographies.

Eric McAfee

Eric A. McAfee, Chairman and CEO

Founder of Aemetis in 2006. Silicon Valley entrepreneur and venture capitalist with lifelong commitment to agriculture and renewable energy. Founding shareholder of $1.6 billion revenues Pacific Ethanol (now Alto Ingredients) funded by $85 million from Bill Gates’ Cascade Fund and a $150 million PIPE raised at a $1 billion valuation. Founding shareholder of several publicly-held energy companies: Evolution Petroleum, Pacific Asia Petroleum, Particle Drilling Technologies, World Waste Technologies, and Solargen Energy. Has funded more than twenty-five companies as principal investor, and has founded seven public companies with a combined high market value of $4 billion. Founder McAfee Farms organic almonds and Organic Pastures Dairy Company, the world’s largest raw milk and cheese producer, creamery, bottler and distributor. Appointed GlobalScot by President of Scotland in 2012, and has served 26 years as elected board member of the California Manufacturers and Technology Association. Graduated from Harvard Business School Private Equity and Venture Program, Stanford Graduate School of Business Fast Growing Company Executive Program, and served as Entreprenuer in Residence at the Wharton MBA Program. Holds a B.S. in Management with Statistics emphasis from California State University Fresno.


Todd Waltz, EVP and CFO

Joined Aemetis in 2007 as Corporate Controller and became CFO in 2010. Previously held senior financial management roles with Apple, Inc. for 12 years. Prior to Apple, worked with Ernst & Young and Litton Industries.


Andy Foster, EVP and President, Aemetis Advanced Fuels

Since joining Aemetis in 2006, Andy Foster has held senior leadership positions including Senior Vice President, Chief Operating Officer and his current role as President of the renewable fuels business of the company. Previously, he served as an executive at Marimba, Cadence Design Systems, and eSilicon Corporation. From 1989 to 1992, he served in the George H.W. Bush White House, and was Deputy Chief of Staff for Illinois Governor Edgar.


Sanjeev Gupta, President, Aemetis International

Joined Aemetis in 2007 as head of Biofuels Marketing and became Executive Vice President of Universal Biofuels subsidiary in India in 2009. Experienced global marketer of specialized chemicals and oils. Previously head of petrochemical trading company with about $250 million of annual revenues and offices on several continents. Previously General Manager of International Marketing for Britannia Industries, a subsidiary of Nabisco Brands, in India.