Location: Provo, Utah

2006 Revenue: $17.9 million

2007 Estimated Revenue: $23.1 million

Employees: 80

Founded: 1990

What he does: Through a combination of research, training, and consulting, VitalSmarts helps companies in more than 30 different industries improve performance by influencing the behavior of their employees. The company was named to the Inc. 500 list in both 2005 and 2006. In addition to advising leaders in a professional setting, Grenny co-founded a group called Unitus to help communities around the world conquer their own social problems. Unitus works with approximately 3 million clients in developing nations gain access to loans and start small businesses in order to improve the lives of their families.

Why he's successful: "Entrepreneurs have the potential to have a more positive impact on the world's most important problems than any other group out there. If business leaders are active about that, then the world is going to be better off."

Read his nomination