Dealer.com: Mark Bonfigli
2009 revenue: $51.3 million
CEO: Mark Bonfigli
Provides online marketing services for auto dealers, auto manufacturers, and media companies.
Dealer.com is a training machine. Employees use uFuel, the company's online learning system, for tasks as varied as mastering software basics and deepening the expertise needed to further their careers. Dealer.com also offers top performers 52 weeks of M.B.A.-level course work, designed specifically for the company and taught by business professors from a local college.