Mark Young is the chief legal officer for the ATP World Tour (formerly the Association of Tennis Professionals), the governing body for the global men’s professional tennis circuit. He serves as chief executive officer of ATP Americas, the tour’s arm in North and South America, and oversees daily operations at U.S. headquarters in Ponte Vedra Beach, Fla. The circuit features the world’s top male tennis players, including Roger Federer and Rafael Nadal, in 63 tournaments in 31 countries. ATP sanctions the minor league Challenger Series, with more than 100 tournaments worldwide. The not-for-profit membership organization includes male professional tennis players and entities that operate tournaments sanctioned by ATP.

World headquarters is in London with additional outposts in Monaco and Sydney, Australia. Company revenues are about $50 million. ATP employs approximately 90 people.