Larry Ellison is arguably the first Silicon Valley tech entrepreneur to live large and fast. He never met his biological father and was raised in a middle-class Chicago home by his great aunt. After building databases for the CIA, Ellison founded database software firm Oracle in 1977 and has overseen its tremendous growth–revenues in fiscal 2014 grew to $38.3 billion. In September 2014, Ellison shocked the business world by announcing plans to step down as CEO; he is staying on as Oracle’s chairman and chief technology officer.
A sailing fanatic, he’s the main backer of America’s Cup winner Oracle Team USA. Ellison has continued to gobble up properties on the Hawaiian island of Lanai, which he bought for a reported $300 million in 2012, and is said to own every hotel room on the island. His daughter Megan Ellison has found success as a film producer; her Annapurna Pictures produced hits like Zero Dark Thirty and American