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Euclidean Capital
Euclidean Capital was founded in 2009 by James Simons after his career building Renaissance Technologies. Marilyn Simons serves as co-chair of the Simons...
Euclidean Capital
Euclidean Capital was founded in 2009 by James Simons after his career building Renaissance Technologies. Marilyn Simons serves as co-chair of the Simons Foundation, the primary philanthropic vehicle tied to the family. The wealth originated from quantitative trading returns at Renaissance Technologies. The firm deploys capital across hedge funds, private equity, venture capital, and infrastructure. Asset classes include Energy Transition & Renewables, FinTech, Digital Health, and PropTech. Confirmed co-investors include Viking Global Investors and Team8. Geographies covered are North America, Europe, Asia, and Oceania. Investment stages range from Series A through buyouts. The team size remains undisclosed. Offices sit at 160 Fifth Avenue and 149 Fifth Avenue in New York. Adjacent vehicles include the Simons Foundation and Math for America. No operational events from the last 24 months appear in available records. Euclidean Capital maintains separation between investment activities and the Simons Foundation's grant-making. This structure routes philanthropic commitments through dedicated entities rather than direct family-office balance sheet allocations.
General information
Firm type
Single Family Office
Year founded
2009
AUM
21.6B (Altss estimate)
Location
Region
North America
Country
United States
City
New York
Corporate office
New York, NY, United States
Principals
James H. Simons
Founder
Marilyn Simons
Co-chair of the Simons Foundation
Sector focus
Frequently asked questions
Who runs investment decisions at Euclidean Capital?
Marilyn Simons holds oversight through her role as co-chair of the Simons Foundation. Day-to-day investment management details are not publicly disclosed.
Where does the underlying wealth come from?
The capital originated from James Simons' founding of Renaissance Technologies, the quantitative hedge fund.
Does Euclidean Capital participate in fund commitments or only direct deals?
The firm uses both fund commitments and direct co-investments. Confirmed co-investors include Viking Global Investors.
What investment stages does Euclidean Capital typically target?
Stages include Series A, Series B, Series C, growth equity, and buyouts.
How is Euclidean Capital related to the Simons Foundation?
The foundation serves as the family's primary philanthropic vehicle and shares leadership with Marilyn Simons.
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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