18. Procter & Gamble The consumer-products giant posted $8.7 billion in earnings last year, up 20% from the previous year. The company bulked up its offerings in 2005 with its $57 billion acquisition of Gillette, whose brands included its signature razors, Duracell batteries and Oral-B dental care products. | 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) |