Mercury Foundation
Historical FunderRedwood City, California · EIN 81-4466525 · Private foundation
Half of its grants to organizations were between $2,000,000 and $3,000,000.
How to apply
The foundation filed the following application information (Form 990-PF Part XV, tax year 2024):
| Contact | PETER W GROUSBECK TRUSTEE |
|---|---|
| Address | PO BOX 29129, LOS ANGELES CA 90029 |
| Phone | 4153922123 |
| Form and materials | APPLICATIONS SHOULD BE SUBMITTED ELECTRIONICALLY AND INCLUDE PROOF OF IRC 501(C)(3) STATUS. UNSOLICITED GRANT REQUESTS MAY NOT RECEIVE ACKNOWLEDGEMENT. |
| Deadlines | NO DEADLINE HAVE BEEN ESTABLISHED AT THIS TIME. |
| Restrictions | GRANTS ARE LIMITED TO IRC SECTION 501(C)(3) DEFINED PURPOSE AND CHARITIES. |
Copied as filed. Deadlines on a tax return describe the foundation's usual process; they are not confirmation of a current open cycle.
What it funds
Share of grant lines on the latest return, classified from the purpose each grant states.
Where it gives
83% of grants went outside California.
Grants paid in tax year 2024
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Rockefeller Philanthropy Advisors | New York, NY | General | $15,000,000 |
| Planned Parenthood Federation of America | New York, NY | General | $3,000,000 |
| Panthera | New York, NY | General | $3,000,000 |
| Vanguard Charitable Fund - Daf | Warwick, RI | General | $3,000,000 |
| Nrdc | New York, NY | General | $2,000,000 |
| Planned Parenthood Los Angeles | Los Angeles, CA | General | $2,000,000 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2024 | $28,000,000 | 6 |
| 2023 | $26,545,000 | 11 |
| 2022 | $22,500,000 | 5 |
Sources
- IRS Form 990-PF, tax year 2024, filed Apr 5, 2026 - IRS e-file batch, object ID 202600959349100100
- IRS Tax Exempt Organization Search for EIN 81-4466525
- Profile updated Nov 6, 2026
Facts on this page come from the foundation's own IRS Form 990-PF filings as published by the IRS. Grantvello does not know whether a foundation is accepting proposals right now: a past grant is not an open opportunity. Always confirm current guidelines with the funder before applying.