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The Heising-Simons Foundation
Grantmaking profile built from public IRS Form 990 filings.
| Location | Los Altos, California |
| Grants on file | 5,376 |
| Total giving on file | $1.2B |
| Typical grant size | $218K |
| Most recent filing year | 2025 |
| Cause focus | General grantmaking |
What they fund
- 2024 & 2025 MEMBERSHIP DUES
- CLIMATE & CLEAN ENERGY - COMMUNICATIONS
- CLIMATE & CLEAN ENERGY - INTELLECTUAL FOUNDATION
- CLIMATE & CLEAN ENERGY - INTELLECTUAL FOUNDATION, SCIENCE - CLIMATE CHANGE SCIENCE
- CLIMATE & CLEAN ENERGY - REGULATORY INTERVENTIONS - NATIONAL
Largest recipients on file
| Recipient | State | Grants | Total |
|---|---|---|---|
| New Venture Fund | DC | 68 | $39.0M |
| Environmental Defense Fund Inc | CA | 14 | $34.1M |
| Natural Resources Defense Council | CA | 18 | $29.1M |
| Regents of the University of California at Berkeley | CA | 77 | $23.4M |
| California Institute of Technology | CA | 94 | $22.4M |
| The Board of Trustees of the Leland Stanford Junior University | CA | 25 | $21.7M |
| Tides Foundation | CA | 78 | $19.1M |
| Tides Center | CA | 63 | $17.1M |
| Regents of the University of California Santa Cruz | CA | 92 | $15.8M |
| Alliance for Early Success | KS | 13 | $15.2M |
See more foundations in California or general grantmaking funders nationwide.
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