Mark Ein
American venture capitalist and sports entrepreneur
About Mark Ein
Born 1964.
Mark David Ein (born December 31, 1964) is an American venture capitalist and sports entrepreneur. He is a limited partner of the National Football League (NFL) team Washington Commanders and is an investment partner in the English football club Leeds United and the Major League Baseball (MLB) team Baltimore Orioles. Ein founded the World TeamTennis (WTT) team Washington Kastles in 2008 and has chaired the DC Open tournament since 2019. He also owns the Washington City Paper, serves as chairman of the President's Export Council, and is a member of the Federal City Council, World Economic Forum, and Gridiron Club.
Early life Ein was born on December 31, 1964, in Chevy Chase, Maryland. He earned a degree in economics from the Wharton School in 1987 and an MBA from Harvard Business School in 1992. Ein is a member of the Phi Delta Theta fraternity.
Career Ein worked for The Carlyle Group, Brentwood Associates, and Goldman Sachs before founding Venturehouse Group in 1999. A lifelong enthusiast of tennis, Ein founded the Washington Kastles of World TeamTennis (WTT) in 2008 and is a board member of the United States Tennis Association (USTA). Ein bought the Washington City Paper in 2017 and became chairman and CEO of the DC Open tennis tournament in 2019. He is the chairman of the board for Kastle Systems, a security company, and CEO of Capitol Investment Corp. Ein became a Washington Business Hall of Fame laureate in 2018.
In 2023, president Joe Biden appointed Ein to chair the President's Export Council, a group within the International Trade Administration that serves as a national trade advisory committee. He is also a member of the Federal City Council, World Economic Forum, and the Gridiron Club. The same year, he was a part of an investment group led by Josh Harris that bought the Washington Commanders of the National Football League (NFL) for $6.05 billion. He and Harris have been close friends since elementary school; they attended Wharton and Harvard Business School together and shared beach houses during their time on Wall Street.
+ Notable properties ownedTeamNotes Washington Kastles World TeamTennis team Washington City Paper Alternative newspaper Washington Justice Overwatch League team; league folded in 2023 DC Open Tennis tournament; chairman and CEO Washington Commanders National Football League team; limited partner
Personal life
Ein is Jewish; his mother is a Holocaust survivor. He was an executive producer of the 2008 documentary film Kicking It.
Ein married Sally Stiebel in September 2013. The wedding included a live performance of Y.M.C.A. by the Village People and was attended by over 350 guests, including Mark Warner, Ted Leonsis, Raul Fernandez, Vernon Jordan, Valerie Jarrett, Debra Lee, Gene Sperling, Larry Summers, David Bradley, Adrian Fenty, Jack Evans, Murphy Jensen, Sam Kass, Capricia Marshall, and Mitchell Rales. He was inducted into the USTA Mid-Atlantic Tennis Hall of Fame in 2012 and received the "Outstanding Public Service in Professional Sports" award by the Jefferson Awards Foundation in 2013.
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Important facts
People in Mark Ein's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped Mark Ein's
Frequently asked questions
Who is Mark Ein?
American venture capitalist and sports entrepreneur
When was Mark Ein born?
Mark Ein was born on 31 December 1964 in Chevy Chase.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Mark Ein. https://biography.guide/mark-ein/
MLA: "Mark Ein." Biography.guide, https://biography.guide/mark-ein/.
Chicago: "Mark Ein." Biography.guide. https://biography.guide/mark-ein/.
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