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39. Geesung Choi
39. Geesung Choi
CEO, Samsung Electronics

The freshman CEO has ambitious plans to grow Samsung's annual revenue from $116 billion to $400 billion by 2020. For that to happen, Choi will have to hit big on all of his recent bets, including flat screens, memory chips, and mobile phones. The early results appear promising. Samsung has been increasing its share of the mobile phone market at the expense of industry leader Nokia, and reviewers are praising the new iPad-challenging Galaxy tablet.


NEXT: 40. Rex Tillerson
Last updated November 19 2010: 10:47 AM ET
An earlier version of this story incorrectly stated that Samsung's projected revenue is from $36 billion to $400 billion by 2020. The correct revenue projection is from $116 billion to $400 billion.
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