Yamauchi-No.10 Family Office

Yamauchi-No.10 Family Office

Yamauchi-No.10 Family Office was established to manage wealth originating from the Yamauchi family, founders of Nintendo. The office operates from Tokyo and allocates across public markets, private equity, and venture capital with a horizon extending to 100 years. The strategy mixes activist campaigns in listed Japanese companies, direct venture investments, and selective fund commitments. Asset classes include public equities, venture capital, and private equity. Confirmed positions include Astroscale, SmartNews, WorkIndia, Paradromics, and Astranis. Geographic reach covers Japan, the United States, India, the United Kingdom, and Australia. In 2021 the office acquired 100% of Taiyo Pacific Partners, a U.S. manager focused on Japanese and Indian equities. The office employs a professional investment team and maintains a portfolio page listing more than fifteen holdings. Additional activity includes an LP commitment to K2P Film Fund I in May 2025 and a capital partnership with K2 Pictures in June 2025. In August 2025 the firm exited its 28.53% stake in Toyo Construction via tender offer to Taisei Corporation. A structural feature is the combination of activist engagement in public companies with incubation-style venture investments. The office has executed board replacement campaigns and platform acquisitions to integrate external teams, creating an internal capability for both governance interventions and technology deployment.