Ross’ Related Companies has been a force in the industry since its inception. In 2008, he purchased 50 percent of the Miami Dolphins and the stadium for $550 million, and followed that up in 2009 by becoming 95 percent owner. Ross’ mobile technology company FanVision is developing a smartphone-compatible version of instant replay. Formerly known …

This tycoon inherited his father’s jewelry business at age 15 and later became the president of the property firm First Allied Corporation, which owns shopping centers in 15 states. Now he owns both the professional soccer team Manchester United and the Tampa Bay Buccaneers. The rumors that Manchester United was going to be sold by …