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7. Berkshire Hathaway
Berkshire Hathaway
Fortune 500 rank: 11
2007 profit: $13.21 billion

With a $200 billion market value, Warren Buffett's Berkshire Hathaway is still making the right picks.

2007 profits rose 20% on sales of $118 billion. That's off slightly from the previous year, when earnings grew by 29%. Still, the investment management company managed to skate past the market downturn that roiled Wall Street.

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Last updated April 24 2008: 11:07 AM ET
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