United States Billie Jean King Cup team, Washington Kastles
American tennis player (born 1981)
Intelligence Brief
Williams’ business strategy extends athlete influence into capital allocation, franchise ownership and media production rather than relying solely on endorsement fees. Her Toronto Tempo role explicitly connects ownership with merchandise development, while the 2026 Starfire fund expands her investment platform beyond its original athlete-branded identity. Fund capital and franchise valuations should not be treated as Williams’ personal investment amounts or the value of her individual stakes. (wnba.com)
Sources checked 2026-10-23
Ownership & equity map
Serena Ventures and Starfire
Documented stake
2014–2026; Starfire announced in 2026
Williams founded Serena Ventures, which closed a $111 million institutional fund in 2022. Reporting in August 2026 identifies Williams and Beth Ferreira as leaders of the new Starfire fund, while Serena Ventures continues managing her angel investments and Fund I portfolio. ([inc.com](https://www.inc.com/amie-sheridan/serena-williams-new-starfire-venture-fund-invest/91385189))
The article does not disclose Williams’ ownership percentage, personal capital commitment, or Starfire’s total capital raised; the $111 million is fund capital, not her personal investment.
The WNBA announced Williams’ entry into the Toronto Tempo ownership group alongside Larry Tanenbaum in March 2025. Her ownership role includes contributing to jersey designs and merchandise collaborations. ([wnba.com](https://www.wnba.com/news/serena-williams-toronto-tempo-ownership-stake))
The announcement does not disclose her ownership percentage, investment amount or transaction valuation.
Serena and Venus Williams purchased a small ownership stake in the Miami Dolphins as limited partners. ([nfl.com](https://www.nfl.com/news/williams-sisters-become-latest-celebrities-to-buy-part-of-dolph-09000d5d812254b7))
The acquisition report does not disclose the price, either sister’s individual percentage, or subsequent changes to their holdings.
Ownership and production activity documented in 2026
Associated Press identifies Nine Two Six Productions as Williams’ company and reports that she executive-produced the Prime Video docuseries The CEO Club through it. This documents a production-business role beyond her on-screen participation. ([apnews.com](https://apnews.com/article/ce4a485c38cb25a07e51867c104caf5a))
The article does not disclose her ownership percentage, production budget, compensation, distribution-deal value or rights ownership.
2024 launch; uncertainty reported in September 2025
WYN Beauty was developed through SW-Sanghvi Beauty USA, a joint venture between Williams and The Good Glamm Group. September 2025 reporting described the brand’s future as uncertain after Good Glamm shuttered in July. ([beautyindependent.com](https://www.beautyindependent.com/fate-serena-williams-makeup-brand-wyn-beauty-uncertain-strategic-partner/))
Ownership percentages and investment amounts are undisclosed. The report does not establish a completed sale, Williams’ exit, or WYN’s closure, so the partner’s collapse should not be treated as a confirmed exit.
Evidence boundaries. Net-worth estimates, private deal terms and undisclosed equity percentages are excluded by design. A documented group membership proves participation—never the size of an individual’s equity, control rights or returns.
