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Explore Breanna Stewart's sponsors, brand deals, and ownership ventures — across all partnership categories.
Breanna Stewart is one of 74 investors in Factory Holdings' $4.7 million cultural capital investment into Kalshi, the world's largest prediction market, as part of their Series E financing round valued at approximately $11 billion. Stewart said: "Kalshi is building a new kind of financial infrastructure around how people engage with information and markets. Through Factory, a group of us were able to participate as owners -- not just observers."
Breanna Stewart left Nike to sign with Puma in 2021, receiving her own signature shoe, the Puma Stewie 1, in 2022.
Explore Breanna Stewart's equity stakes, business, and community ventures
Unrivaled was co-founded in 2023 by WNBA players Napheesa Collier and Breanna Stewart and tipped off in 2025. Players get paid $200k+ in salary and equity. Notable early investors include former ESPN president John Skipper and David Levy, the former president of Turner. Current and former athletes like Alex Morgan, Megan Rapinoe, Michelle Wie West, Billie Jean King, Stephen Curry, Giannis Antetokounmpo and Michael Phelps are also among those backing the league. Unrivaled was valued at US$340 million last after closing an oversubscribed Series B investment round led by private equity firm Bessemer Venture Partners. Other notable investors in the round included tennis legend Serena Williams through her Serena Ventures venture capital firm. Previous investors Warner Bros Discovery (WBD) and Morgan’s investment vehicle Trybe Ventures returned for the round. https://www.si.com/sportsperson/napheesa-collier-breanna-stewart-2025-innovators-of-the-year-unrivaled
All endorsement information is collected from publicly available sources and may not represent the full scope of a player's partnerships. Values are estimated where not publicly disclosed.
