{{Short description|American businessman (born 1964)}} {{Use mdy dates|date=January 2025}} {{Infobox person | name = Mark Ein | image = Mark Ein (2025 DC Open) 02.jpg | alt = | caption = Ein at the 2025 DC Open | birth_date = {{birth date and age|1964|12|31}} | birth_place = Chevy Chase, Maryland, U.S. | birth_name = Mark David Ein | education = {{ubl|University of Pennsylvania (BS)|Harvard University (MBA)}} | occupation = {{hlist|Venture capitalist|sports entrepreneur}} | organizations = {{ubl|Federal City Council|World Economic Forum|Gridiron Club|President's Export Council}} | title = {{ubl|'''Owner'''|Washington Kastles (WTT)|''Washington City Paper''|'''CEO'''|Venturehouse Group|Capitol Investment|DC Open|'''Limited partner'''|Washington Commanders (NFL)}} | boards = {{ubl|Kastle Systems|United States Tennis Association (USTA)}} | spouse = {{marriage|Sally Stiebel|2013}} | children = | awards = {{ubl|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 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.<ref name="Politico">{{cite web |author1=Politico Staff |date=December 31, 2018 |title=BIRTHDAY OF THE DAY: Mark Ein, founder and CEO of Capitol Investment Corp and Venturehouse Group |url=https://www.politico.com/story/2018/12/31/playbook-birthday-mark-ein-1077176 |access-date=July 23, 2023 |website=Politico}}</ref><ref>{{cite web |title=Mark Ein ATP Tour profile |url=https://www.atptour.com/en/players/mark-ein/e797/bio |access-date=July 23, 2023 |website=ATP Tour}}</ref><ref name="Bethesda">{{cite news |last=Elfin |first=David |date=July 6, 2015 |title=Q&A with the Owners of the Philadelphia 76ers, New Jersey Devils and Washington Kastles |url=https://moco360.media/2015/07/06/bethesda-interview-josh-harris-mark-ein/ |url-status=live |archive-url=https://web.archive.org/web/20230322212422/https://moco360.media/2015/07/06/bethesda-interview-josh-harris-mark-ein/ |archive-date=March 22, 2023 |access-date=March 22, 2023 |website=MoCo360}}</ref> 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. <ref name="HBS">{{cite web |title=Dinner and Discussion w/Mark Ein |url=https://hcdc.clubs.harvard.edu/article.html?aid=422 |access-date=July 23, 2023 |website=Harvard Club of Washington DC}}</ref>

==Career== Ein worked for The Carlyle Group, Brentwood Associates, and Goldman Sachs before founding Venturehouse Group in 1999.<ref name="Kastle">{{cite web |title=Mark Ein - Chairman |url=https://www.kastle.com/leadership/mark-d-ein/ |website=kastle.com |access-date=July 23, 2023}}</ref><ref name="Ventures">{{cite web |last1=Kangarloo |first1=Kasra |title=The many lives of Mark Ein (Video) |url=https://www.bizjournals.com/washington/print-edition/2015/07/24/the-many-lives-of-mark-ein.html |website=American City Business Journals |publisher=Washington Business Journal |access-date=July 30, 2023}}</ref> 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).<ref name="Kastle" /> He earned an ATP ranking of 1098 at age 46 after playing in a few ATP doubles tennis tournaments.<ref name="Politico" /><ref name="TheDP">{{cite web |last1=Lynn |first1=Carter |title=Wharton grad Mark Ein continues to make impact in D.C. sports world |url=https://www.thedp.com/article/2021/02/mark-ein-dc-sports-penn-washington-justice |website=The Daily Pennsylvanian |access-date=July 27, 2023}}</ref> Ein bought the ''Washington City Paper'' in 2017 and became chairman and CEO of the DC Open tennis tournament in 2019.<ref>{{cite news |last1=Gregg |first1=Aaron |title=Local businessman Mark Ein to buy Washington City Paper for undisclosed sum |url=https://www.washingtonpost.com/news/capital-business/wp/2017/12/21/local-businessman-mark-ein-to-buy-washington-city-paper-for-undisclosed-sum/ |newspaper=The Washington Post |access-date=July 23, 2023}}</ref><ref name="Open">{{cite web |title=Citi Open Spotlight with Mark Ein |url=https://www.usta.com/en/home/stay-current/midatlantic/citi-open-spotlight-with-mark-ein.html |website=usta.com |access-date=July 23, 2023}}</ref> He is the chairman of the board for Kastle Systems, a security company, and CEO of Capitol Investment Corp.<ref name="Ventures" /> Ein founded the Washington Justice of the esports Overwatch League in 2018.<ref>{{Cite web|url=http://www.espn.com/esports/story/_/id/24579713/sources-overwatch-league-add-dc-hangzhou-china-teams|title=Sources: Overwatch League to add D.C. and Hangzhou, China, teams|last=Wolf|first=Jacob|date=September 4, 2018|website=ESPN|access-date=December 3, 2018}}</ref> Ein became a Washington Business Hall of Fame laureate in 2018.<ref>{{cite web |last1=Milk |first1=Leslie |date=November 19, 2018 |title=Here Are the Washington Business Hall of Fame Laureates for 2018 |url=https://washingtonian.com/2018/11/19/here-are-the-washington-business-hall-of-fame-laureates-for-2018/ |access-date=August 7, 2023 |website=Washingtonian}}</ref>

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.<ref>{{cite web |title=President Biden Announces Key Appointments to Boards and Commissions |url=https://bidenwhitehouse.archives.gov/briefing-room/statements-releases/2023/02/28/president-biden-announces-key-appointments-to-boards-and-commissions-18/ |website=The White House |date=February 28, 2023 |access-date=July 23, 2023}}</ref> He is also a member of the Federal City Council, World Economic Forum, and the Gridiron Club.<ref name="Kastle" /><ref>{{cite news |title=Current Members |url=https://www.federalcitycouncil.org/about-us/membership/current-members/ |access-date=August 7, 2023 |website=Federal City Council}}</ref> 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.<ref>{{cite news |last1=Maske |first1=Mark |last2=Jhabvala |first2=Nicki |title=NFL owners approve sale of Commanders from Daniel Snyder to Josh Harris |url=https://www.washingtonpost.com/sports/2023/07/20/washington-commanders-sale/ |newspaper=The Washington Post |access-date=July 21, 2023 |date=July 20, 2023}}</ref><ref>{{cite press release |author=<!--Not stated--> |title=Josh Harris Announces Acquisition of Washington Commanders |url=https://www.commanders.com/news/josh-harris-announces-acquisition-of-washington-commanders |location= |publisher=Washington Commanders |agency= |date=July 21, 2023 |access-date=July 21, 2023}}</ref><ref>{{cite news |last1=Jhabvala |first1=Nicki |title=The Commanders sale was so complicated, it was 'like 20 deals in one' |url=https://www.washingtonpost.com/sports/2023/07/20/josh-harris-rales-commanders-owners/ |newspaper=The Washington Post |access-date=July 23, 2023 |date=July 20, 2023}}</ref> 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.<ref name="DC Roots">{{cite news |last1=Jhabvala |first1=Nicki |date=July 23, 2023 |title=How Josh Harris's Washington roots inspired him to buy the Commanders |url=https://www.washingtonpost.com/sports/2023/07/23/josh-harris-commanders-owner/ |access-date=July 23, 2023 |newspaper=The Washington Post}}</ref><ref name="Bethesda" /><ref name="TheDP" /> Ein became an investment partner in the English football club Leeds United in May 2024 and the Baltimore Orioles of Major League Baseball (MLB) in September 2025.<ref>{{cite tweet |user = Markein |number = 1791854088646234217 |title = Excited to announce my investment in Leeds United! |date = May 18, 2024 |access-date = September 25, 2025}}</ref><ref>{{cite web |last1=Diallo |first1=Aysha |title=Baltimore Orioles Sell Minority Stake to Investor Mark Ein |url=https://www.bloomberg.com/news/articles/2025-09-25/baltimore-orioles-sell-minority-stake-to-investor-mark-ein |website=Bloomberg |access-date=September 25, 2025 |date=September 25, 2025}}</ref>

{| class="wikitable sortable" width="auto" |+ Notable properties owned ! scope="col"|Team ! scope="col"|Notes |- ! scope=rowgroup | Washington Kastles | World TeamTennis team |- ! scope=rowgroup | ''Washington City Paper'' | Alternative newspaper |- ! scope=rowgroup | Washington Justice | Overwatch League team; league folded in 2023 |- ! scope=rowgroup | DC Open | Tennis tournament; chairman and CEO |- ! scope=rowgroup | Washington Commanders | National Football League team; limited partner |}

==Personal life== [[File:Commanders Harvest Feast (53347709034).jpg|thumb|right|Ein with Maryland lieutenant governor Aruna Miller at a Washington Commanders charity event for Thanksgiving, 2023]] Ein is Jewish; his mother is a Holocaust survivor.<ref name="TycoonWP">{{cite news |last1=Schwartzman |first1=Paul |date=January 30, 2018 |title=A tennis team, mansions and now an alt-newsweekly: A tycoon's new project |url=https://www.washingtonpost.com/local/dc-politics/a-tennis-team-mansions-and-now-an-alt-newsweekly-a-tycoons-new-project/2018/01/29/e315e944-feff-11e7-9d31-d72cf78dbeee_story.html |access-date=July 23, 2023 |newspaper=The Washington Post}}</ref> He was an executive producer of the 2008 documentary film ''Kicking It''.<ref name="HBS"/> In 2001, he purchased the home of Katharine Graham in the Georgetown district of Washington, D.C. for $8 million following her death. He never resided in it and put up for sale in 2024.<ref>{{Cite news |last=Williamson |first=Elizabeth |date=July 23, 2024 |title=Why Katharine Graham's Washington Home Has Sat Vacant for 22 Years |url=https://www.nytimes.com/2024/07/23/us/politics/katharine-graham-house-georgetown.html |access-date=July 25, 2024 |work=The New York Times |language=en-US |issn=0362-4331}}</ref>

Ein married Sally Stiebel in September 2013.<ref name="Wedding">{{cite news |title=Mark Ein weds Sally Stiebel: An A-list bachelor finally finds his bride |url=https://www.washingtonpost.com/news/reliable-source/wp/2013/09/22/mark-ein-weds-sally-stiebel-the-a-list-bachelor-finally-finds-his-bride/ |newspaper=The Washington Post |date=September 22, 2013}}</ref> 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.<ref name="Wedding" /> They spent their honeymoon at Lake Como in Italy and reside in Georgetown.<ref name="Wedding" />

In 2009, D.C. mayor Adrian Fenty presented Ein with the key to the city for his success with the Washington Kastles.<ref>{{cite web |last1=Bland |first1=Jacque |date=August 26, 2009 |title=Key-sponsored team given key to the city |url=https://www.washingtonexaminer.com/key-sponsored-team-given-key-to-the-city |access-date=July 23, 2023 |website=Washington Examiner}}</ref> 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.<ref>{{cite web |title=Usta Mid-Atlantic Award Winners |url=https://www.usta.com/en/home/about-usta/usta-awards/midatlantic/USTA-Mid-Atlantic-Award-Winners.html |access-date=July 30, 2023 |website=United States Tennis Association}}</ref><ref>{{cite web |date=June 19, 2013 |title=Jefferson Awards Announces Strategic Alliance with the NFL Player Engagement, Charles Fazzino and IvyConnect, While Celebrating 41 Years of Honoring Service to Others |url=https://www.prweb.com/releases/2013/6/prweb10849501.htm |archive-url=https://web.archive.org/web/20130626005344/http://www.prweb.com/releases/2013/6/prweb10849501.htm |url-status=dead |archive-date=June 26, 2013 |access-date=July 23, 2023 |website=PRWeb |publisher=Jefferson Awards Foundation}}</ref>

==References== {{Reflist}}

==External links== {{commons category}} * {{Twitter|Markein}} * {{URL|https://venturehousegroup.com/mark-d-ein/|Venturehouse Group profile}} * {{URL|https://www.dcpolicycenter.org/people/mark-ein/|D.C. Policy Center profile}}

{{Washington Commanders owners}} {{Washington Justice}} {{Jefferson Award Winners}} {{Authority control}} {{Portal bar|American football|Biography|Business|Tennis|Washington, D.C.|border=n}}

{{DEFAULTSORT:Ein, Mark}} Category:1964 births Category:20th-century American businesspeople Category:20th-century American Jews Category:20th-century American sportsmen Category:21st-century American businesspeople Category:21st-century American Jews Category:21st-century American philanthropists Category:21st-century American sportsmen Category:American business executives Category:American chairpersons of corporations Category:American chief executives of professional sports organizations Category:American company founders Category:American financial company founders Category:American male tennis players Category:American newspaper executives Category:American sports executives and administrators Category:American venture capitalists Category:Baltimore Orioles owners Category:Businesspeople from Washington, D.C. Category:The Carlyle Group people Category:Esports team owners Category:Goldman Sachs people Category:Harvard Business School alumni Category:Jewish American sports executives and administrators Category:Jewish American tennis players Category:Jews from Washington, D.C. Category:Leeds United F.C. Category:Living people Category:People from Chevy Chase, Maryland Category:Philanthropists from Washington, D.C. Category:Tennis executives Category:Tennis players from Washington, D.C. Category:Washington Commanders owners Category:Washington Justice Category:Wharton School alumni Category:World TeamTennis owners