D avid Blitzer is an American billionaire investor and a senior executive at the private equity giant, The Blackstone Group. His primary business is in finance, where he is the Global Head of Blackstone's Tactical Opportunities group, which makes opportunistic investments across various asset classes. His success in this role has been a major source of his wealth.

Blitzer is also one of the most prolific and high-profile investors in professional sports teams. He is a co-founder and managing partner of Harris Blitzer Sports & Entertainment (HBSE), alongside his business partner Josh Harris. HBSE is the holding company for a valuable portfolio of teams, including the NBA's Philadelphia 76ers and the NHL's New Jersey Devils. He also holds stakes in numerous other sports franchises globally, including the NFL's Pittsburgh Steelers, MLB's Cleveland Guardians, and the English Premier League soccer club, Crystal Palace. His career is a powerful combination of high finance and big-league sports ownership.