Theodore Roosevelt IV is a Managing Director in Investment Banking at Barclays, based in New York. He is Chairman of the firm’s Clean Tech Initiative. Currently, he spends most of his time with the firm’s Energy Transition Group. He started his investment banking career at Lehman Brothers in 1972.

Mr. Roosevelt is Board Member of the Center for Climate and Energy Solutions (C2ES), he was a Board Chair for (C2ES) from June 1, 2003 until June 1, 2023, a Trustee of The Climate Reality Project, a member of the Governing Council of the Wilderness Society, and a Trustee for the American Museum of Natural History.