13. Wal-Mart Stores The house that Sam Walton built tops this year's Fortune 500 and ranks as the 13th most profitable company, with $11.3 billion in earnings for 2006. Total revenues of $351 billion were up 11%, despite the fact that the chain's same-store sales saw a slowdown. |  Wal-Mart retakes the No. 1 slot on the Fortune 500 this year. See where America's largest corporations rank, and why. (more)  See the 37 companies that made both the Fortune 1000 and Best Companies to Work For lists this year. (more) |
