Updated:
Terrasias Capital
Terrasias Capital was established in 2012 by Ikuko Yamanaka. The firm serves as the dedicated vehicle for the Yamanaka family's multigenerational wealth.
Terrasias Capital
Terrasias Capital was established in 2012 by Ikuko Yamanaka. The firm serves as the dedicated vehicle for the Yamanaka family's multigenerational wealth. Its headquarters sit in central Tokyo. The office concentrates on alternative investments. Confirmed exposures include private equity, hedge funds, private credit, real estate, natural resources and intellectual property. Investment stages span buyout and growth. The firm executes through direct co-investments and SPVs. Geographic reach centers on Asia with additional natural resources holdings held globally. Real estate assets consist of mixed-use portfolios in Tokyo and Okinawa. Team size remains undisclosed. Stefan Nilsson serves as co-founder and director. Ikuko Yamanaka holds the roles of CEO and CIO. No additional offices appear in public records. The firm maintains board participation in the Japan-Sweden Society, the Swedish Chamber of Commerce and Industry in Japan, and the Tokyo American Club. Terrasias Capital operates as a pure single-family office without external capital vehicles. Governance ties directly to the Yamanaka family principals and their long-standing relationships in investment banking and asset management.
General information
Firm type
Single Family Office
Year founded
2012
Location
Region
Asia
Country
Japan
City
Tokyo
Corporate office
Level 27, Shiroyama Trust Tower 4-3-1 Toranomon, Minato-ku, Tokyo 105-6027, Japan
Principals
Ikuko Yamanaka
CEO and CIO
Stefan Nilsson
Co-Founder and Director
Sector focus
Frequently asked questions
Who runs investment decisions at Terrasias Capital?
Ikuko Yamanaka serves as CEO and CIO. Stefan Nilsson acts as co-founder and director with oversight responsibilities.
What asset classes does Terrasias Capital deploy into?
The firm allocates across private equity, hedge funds, private credit, real estate, natural resources and intellectual property royalties.
Does Terrasias Capital make fund commitments or direct investments?
It executes through direct co-investments and SPVs in addition to hedge fund and private equity fund exposure.
Where does the underlying wealth originate?
The office manages the multigenerational wealth of the Yamanaka family.
Which regions does Terrasias Capital target?
Primary focus remains Asia with additional global natural resources exposure.
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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