The Gig: Founder/CEO, Rostrum Records

In an age where majors continue to take a beating, Grinberg keeps scoring for the minors with his Pittsburg, PA-based indie label. With a mean roster including Wiz Khalifa, Mac Miller and Boaz, and having had success with their Under the Influence tour, Grinberg refuses to sell out as he continues to command respect amongst his fellow industry Goliaths.