Mark Ein

Mark Ein
Ein in 2023
Born	Mark David Ein (1964-12-31) December 31, 1964 (age 59) Chevy Chase, Maryland, U.S.
Education	Wharton School (BS, 1987) Harvard Business School (MBA, 1992)
Occupations	Venture capitalist sports team owner
Organizations	Federal City Council World Economic Forum Gridiron Club President's Export Council
Title	Owner Washington Kastles (WTT) Washington Justice (OWL) Washington City Paper CEO Venturehouse Group Capitol Investment DC Open Limited partner Washington Commanders (NFL)
Board member of	Kastle Systems United States Tennis Association (USTA)
Spouse	Sally Stiebel ​ (m. 2013)​
Awards	Key to D.C. Mid-Atlantic Tennis Hall of Fame Outstanding Public Service in Professional Sports Washington Business Hall of Fame

Mark David Ein (born December 31, 1964) is an American venture capitalist and sports team owner. He was born in Chevy Chase, Maryland, and earned a degree in economics from the Wharton School and a MBA from Harvard Business School. Ein worked for The Carlyle Group, Brentwood Associates, and Goldman Sachs before founding Venturehouse Group in 1999. He is a lifelong enthusiast of tennis who played in a few Association of Tennis Professionals (ATP) tournaments, chairs the DC Open tournament, and founder of the World TeamTennis (WTT) team Washington Kastles.

Ein additionally owns the Washington City Paper, the Washington Justice of the Overwatch League (OWL), and is a limited partner of the Washington Commanders of the National Football League (NFL). Ein is a member of the Federal City Council, World Economic Forum, Gridiron Club, and chair of the President's Export Council since 2023. In 2013, he was honored for Outstanding Public Service in Professional Sports by the Jefferson Awards Foundation.