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15. Intel
15. Intel
Fortune 500 rank: 56
2010 profit: $11.5 billion

The chip giant was late getting into tablets. But a booming market for microprocessors used in cloud computing servers more than made up for any shortfall in 2010--driving a 162% jump in Intel's earnings. It highlighted what critics have missed about the world's biggest chipmaker: even though it's not in the iPad, its chips power many of the games and tasks used on tablets.

NEXT: 16. ConocoPhillips
Last updated May 10 2011: 8:38 AM ET
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