30 Years of No. 1 Companies

Timothy Rice
21 of 29

2002: The Outsource Group Walnut
Creek, Calif.

2001 Revenue: $294.5 million
Three-Year Growth: 54,331%

"I absolutely detested being told what to do if it didn't make sense,” Kevin Grauman, CEO of The Outsource Group, told Inc. in 2002. After a short stint in the corporate world, Grauman went on to found The Outsource Group which “helps clients comply with the thicket of state and federal employment laws.” In June 2006, the company was purchased by a private equity firm, General Atlantic Partners, for an undisclosed sum.