Sponsor a PurposeHome / California / The Maxwellhanrahan Foundation
The Maxwellhanrahan Foundation
Grantmaking profile built from public IRS Form 990 filings.
| Location | Portola Valley, California |
| Grants on file | 435 |
| Total giving on file | $57.4M |
| Typical grant size | $132K |
| Most recent filing year | 2025 |
| Cause focus | General grantmaking |
What they fund
- 2021 Environmental Fellows Program
- 2021 Field Biology Award
- 2021 Field Biology Individual Award
- 2021 Summer Camp scholarship fund
- 2022 Field Biology Award
Largest recipients on file
| Recipient | State | Grants | Total |
|---|---|---|---|
| Grant Paid - See Attachment a | CA | 4 | $44.5M |
| United States Artists Inc | IL | 3 | $2.1M |
| Rhode Island School of Design | RI | 4 | $1.4M |
| National Geographic Society | DC | 5 | $630K |
| Sf Botanical Garden Society at Strybing Arboretum | CA | 2 | $500K |
| Philanthropic Ventures Foundation | CA | 5 | $445K |
| California Institute of the Arts | CA | 2 | $400K |
| Peninsula Open Space Trust | CA | 3 | $350K |
| Uc San Diego Foundation | CA | 4 | $280K |
| Nature Conservancy - California Chapter | CA | 4 | $230K |
Other general grantmaking funders in California
The William & Flora Hewlett FoundationGordon E and Betty I Moore FoundationThe California EndowmentSergey Brin Family FoundationThe David and Lucile Packard FoundationGood Ventures Foundation
See more foundations in California or general grantmaking funders nationwide.
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