America's 10 Fastest Growing Private Companies

Aaron Bell (center in blue); Courtesy Company
6 of 11

Bluefin Payment Systems

John Perry, CEO

No. 6
2011 Revenue: $55.5 million
Three-Year Growth: 11,676%

Bluefin Payment Systems' in-store payment business bottomed out during the recession. But the company, formerly Capital Payments, pivoted to help software companies build online payment solutions and became one of the fastest growing businesses in the nation. The company now handles 80,000 transactions daily for its 15,000 customers, adding an average of 250 per month. But CEO John Perry has no plans to stop growing; Bluefin is developing a mobile point of sale solution due out this fall and hopes to compete with Square and PayPal.