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Billie Jean King Enterprises
Billie Jean King Enterprises manages the wealth and ventures of the 39-time Grand Slam champion, investing in sports ownership, media, and real estate.
Billie Jean King Enterprises
Billie Jean King founded the firm with her partner Ilana Kloss to manage the wealth generated by a career that reshaped professional tennis. King's playing earnings came before the modern prize-money era, but the business empire that followed — built on endorsements, the founding of the Women's Tennis Association, the World TeamTennis league she co-created, and media ventures — forms the capital base. The firm operates from New York with additional offices in Los Angeles, the Bay Area, Pennsylvania, Seattle, and Dubai. The firm invests across media rights, live sports, entertainment, and commercial real estate. King and Kloss have taken equity stakes in ownership groups, including the Los Angeles Dodgers and Angel City FC, the National Women's Soccer League franchise they co-founded. The portfolio spans direct equity, joint ventures, and advisory relationships structured through Billie Jean King Enterprises' consulting arm, which has advised corporations on gender-equity strategy. The firm also holds real estate assets in multiple US markets. Team size is undisclosed. The firm's footprint reflects King's decades-long operating presence — World TeamTennis headquarters operated out of King of Prussia, Pennsylvania, while Dubai houses international business. In September 2023, the International Tennis Hall of Fame opened a permanent Billie Jean King exhibit funded and curated through the firm's archival licensing division (per the Hall of Fame, 2023). Adjacent vehicles include the Billie Jean King Leadership Initiative, a nonprofit focused on workplace inclusion, and the Women's Sports Foundation, which King founded in 1974 — though these are legally separate from the family office. The structural differentiator is the firm's commercial marriage of mission and margin. Unlike a conventional family office that allocates to venture funds and later carves out a philanthropy budget, Billie Jean King Enterprises uses its advisory and licensing businesses to generate revenue while building equity in women's sports properties that other investors undervalue. The firm takes its carried interest in ownership stakes rather than pure advisory fees, aligning its economics with the growth of the women's sports market it helped create.
General information
Firm type
Single Family Office
Year founded
—
AUM
Undisclosed
Location
Region
North America
Country
United States
City
New York
Corporate office
New York, NY, United States
Additional offices
Los Angeles, CA · San Anselmo, CA · King of Prussia, PA · Plymouth Meeting, PA · Seattle, WA · Dubai, UAE
Principals
Billie Jean King
Founder
Ilana Kloss
Partner
Sector focus
Frequently asked questions
Who runs investment decisions at Billie Jean King Enterprises?
Billie Jean King and her partner Ilana Kloss jointly run the firm. They make investment decisions together, with Kloss having led many of the operational and business-development functions since joining King in the management of World TeamTennis and the broader portfolio. The firm does not disclose a separate CIO.
How does Billie Jean King Enterprises source deal flow?
Deal flow comes through King and Kloss's five-decade network in professional sports, media, and corporate sponsorships. King's role in founding the WTA, World TeamTennis, and the Women's Sports Foundation provides direct lines to league commissioners, team owners, and media-rights buyers. The firm's advisory arm also generates inbound inquiries from corporations and sports properties seeking gender-equity consulting, some of which convert to equity relationships.
Does Billie Jean King Enterprises make fund commitments or only direct investments?
The firm focuses on direct equity, joint ventures, and advisory-based partnerships. There is no public record of significant LP commitments to outside private equity or venture funds. King and Kloss have participated as individual co-owners in syndicates alongside other high-net-worth investors for sports-franchise acquisitions.
What is the firm's relationship to Angel City FC?
King and Kloss are founding co-owners of Angel City FC, the Los Angeles-based National Women's Soccer League club that launched in 2022. They hold equity through Billie Jean King Enterprises alongside a large ownership group that includes Natalie Portman, Serena Williams, and other prominent investors. The club operates independently of the family office's other investments.
Where does the underlying wealth come from?
King's wealth originated from tennis prize money and endorsements earned during her playing career from 1959 to 1990 — a span that included 39 Grand Slam titles across singles, doubles, and mixed doubles, as well as the landmark 1973 Battle of the Sexes match against Bobby Riggs. Post-retirement, income has come from business ventures including World TeamTennis, media-rights licensing, speaking engagements, and the advisory-and-investment model operated by the firm.
Does the firm maintain philanthropic structures, and how are they separated?
The Billie Jean King Leadership Initiative and the Women's Sports Foundation are separate 501(c)(3) entities and are not part of the family office's investment portfolio. The firm does use its licensing and archival business to fund exhibits and educational programs — such as the 2023 Hall of Fame exhibit — but these are structured as commercial licensing arrangements, not philanthropic grants.
What is the firm's known posture on co-investments alongside external GPs?
Co-investment appears to be the preferred structure when investing alongside institutions. In the Dodgers ownership group and Angel City FC, King and Kloss invested directly as named partners in syndicates that included other family offices and institutional investors, rather than through a fund intermediary.
Profile maintained by Altss using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.
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