9 NFL Players Turned Successful Entrepreneurs

6. Ryan Diem (Estimated net worth: $13 million)

A former offensive tackle for the Indianapolis Colts, Ryan Diem was part of the team that gave the franchise the Super Bowl XLI title. He played for the same franchise from 2001 to 2011. Diem was one of the participants in the NFL business program where he was part of the program at the Kellogg School of Management, specializing in brand development and selling including evaluating franchise opportunities.

In 2007, Diem founded the Modern Muscle, a car shop known for restorations and building performance engines. Aside from being a hot-rod enthusiast, he is also a tech geek. Diem is part of the board of directors of CloudOne, a tech-firm in Indianapolis specializing in bringing software apps to the cloud.