AUM
~$2.4 billion in assets (2023)
Principals
6
Principal Net Worth
$2.0B
Founded
2007
Data Flags
Foundation assets ~$2.4B (2023); Liz Simons daughter of Jim Simons (d. May 2024); Giving Pledge 2012 confirmed; leadership transition (Brian Eule CEO Jan 2026); team verified via LinkedIn
Heising-Simons Foundation Research
Private foundation (operates as philanthropic vehicle for Liz Simons and Mark Heising)High Confidence2550 Sand Hill Road, Suite 190, Menlo Park, CA 94025
Last verified: Jan 17, 2026
Details
- Website
- hsfoundation.org
- Phone
- (650) 814-5100
- Source of Wealth
- Renaissance Technologies (Liz Simons - inherited from father Jim Simons); Intel (Mark Heising - early Intel product manager)
- Assets Under Management
- ~$2.4 billion in assets (2023)
- Source File
- research/organizations/heising-simons-foundation.md
- UID
- fo-heising-simons-foundation
Also Known As
Heising-Simons FoundationHSFHeising FoundationSimons-Heising Foundation
Principals (6)
Team Members (4)
Related Entities (1)
Known Associates (5)
Relationship Strength
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Sources (5)
- Heising-Simons Foundation Official Website
- Giving Pledge - Liz Simons and Mark Heising
- Inside Philanthropy - Heising-Simons Foundation Profile
- Chronicle of Philanthropy - Heising-Simons Coverage
- Euclidean Capital Research: euclidean-capital.md
Changelog
- 2026-01-17Added Verification Status section (High confidence - foundation assets ~$2.4B; leadership transition to Brian Eule Jan 2026)
- 2025-12-11Initial research file created. Liz Simons is daughter of Jim Simons (Renaissance Technologies, d. May 2024). Foundation focuses on science, climate, education, and human rights. Giving Pledge signatories 2012. Estimated $2.4B in assets, ~$300-450M annual grantmaking.
- 2025-12-26Added comprehensive team with LinkedIn: Leadership transition (Brian Eule becomes CEO Jan 2026, Jennifer Shipp Acting CEO), Program Directors (Barbara Chow Education, Devra Wang Climate, Angie J. Human Rights, Jorge Cino Communications), 10+ Program Officers across all four program areas with LinkedIn URLs, Grants team (Afreyea Tolbert, Jenny Calixto Quigley).