Global 500: The top 25

Wal-Mart retakes the lead on Fortune's annual list of the world's biggest companies. See which other outfits top our list.

American International Group
23. American International Group
Global 500 rank: 23 (Previous rank: 20)
2006 Revenues (millions): $113,194
Headquarters: New York, NY
Country: U.S.
Get quote: AIG

A year after Katrina and Wilma cost AIG $1.6 billion, a 20% drop in property and casualty claims helped push profits up 34%. But its annuity and asset-management businesses saw slow sales. Total revenues grew by only 3.9%.

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