Randall Stephenson

CEO
AT&T

Stephenson was appointed to the position in 2007, running the world's largest telecommunications company at a time when carriers are under assault from tech companies, and AT&T's gamble on the iPhone is paying off. Born in Oklahoma City, he is a longtime phone guy. He began his career with Southwestern Bell Telephone in 1982 and progressed through a series of leadership positions, including an assignment in Mexico City as SBC International's director of finance, overseeing SBC's ownership interest in Teléfonos de México. In 1996, he was named controller for SBC Communications.