Thomas F. Stephenson was sworn in as Ambassador of the United States of America to the Portuguese Republic on November 21, 2007. He served until June, 2009.
He was born and raised in Wilmington, Delaware, and attended Harvard College, where he received an AB in Economics. He received his MBA from Harvard Business School and a JD from Boston College Law School.
Ambassador Stephenson has been a partner at Sequoia Capital, a Silicon Valley venture capital firm, since 1988, and focused on a broad array of information technology and healthcare companies. He has served on dozens of private and public corporate boards in his 40 plus years as a venture capitalist. Ambassador Stephenson worked as a securities analyst at Fidelity Management Company beginning in 1966 and helped found Fidelity Ventures in 1969. In 1977 he became President of Fidelity Ventures and ran that very successful venture capital operation until he left Fidelity at the end of 1987 to join Sequoia Capital.
Ambassador Stephenson has been very active in the affairs of Harvard University over the years and currently serves as a member of the Board of Overseers and its Executive Committee. He is also a member of the Executive Committee of the Board of Overseers of the Hoover Institution at Stanford University, is the co-founder and a member of the Shultz-Stephenson Energy Task Force at Hoover, and is a member of the Board of Advisors of the Stanford Institute for Economic Policy Research. Previously he has served on the Board of Directors of Conservation International, the Wilson Center Council, and as a Corporate Fund Vice Chairman of the Kennedy Center. While living in Boston, he served for many years on boards and committees of the Tufts New England Medical Center.
Ambassador Stephenson currently resides in Atherton, California with his wife, Barbara, and their son, Alexander.
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