James "Jamie" Dimon

Chairman and CEO
JPMorgan Chase & Co.

Jamie Dimon became chairman of the board of JPMorgan Chase & Co., in 2007, after having been the company's president since 2004. In 2011, Chase replaced the Bank of America as the nation's largest bank by assets. Dimon began his career at American Express Co., serving as an assistant to the president from 1982-85. Other corporate leadership roles have included president and chief operating officer at Travelers Group and chairman and CEO of Travelers' Smith Barney Inc. subsidiary. With the merger of Smith Barney and Salomon Brothers, he became co-chairman and co-CEO of the combined firm. Travelers Group and Citicorp combined in 1998, and Dimon became the president of Citigroup Inc., the global financial services company. In 2000 he was named chairman and CEO of Bank One, where he remained until 2004.