Helen and Sanford Diller Family Foundation
Invitation OnlySan Mateo, California · EIN 81-3945624 · Private foundation
Grants paid (2024)$44.8M
Organizations funded7
Typical grant$5,000,000
Total assets$788K
Half of its grants to organizations were between $250,000 and $6,950,000.
From the return
How to apply
On its return for tax year 2024 the foundation checked the box saying it only makes contributions to preselected charitable organizations and does not accept unsolicited requests for funds.
What it funds
Share of grant lines on the latest return, classified from the purpose each grant states.
Where it gives
14% of grants went outside California.
Grants paid in tax year 2024
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| University of California - San Francisco | San Francisco, CA | Helen diller medical center | $25,000,000 |
| Helen Diller Family Foundation | San Francisco, CA | Diller teen fellows program and general support | $6,950,000 |
| Helen Diller Family Foundation | San Francisco, CA | Diller teen fellows program and general support | $6,600,000 |
| American Society for Technion | New York, NY | Helen diller quantum center | $5,000,000 |
| Congregation Emanu-El | San Francisco, CA | Investing in the future campaign | $950,000 |
| Jewish Community Federation | San Francisco, CA | Transformation fund | $250,000 |
| Congregation Emanu-El | San Francisco, CA | Investing in the future campaign | $19,050 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2024 | $44,769,050 | 7 |
| 2023 | $11,648,307 | 5 |
Sources
- IRS Form 990-PF, tax year 2024, filed Nov 13, 2025 - IRS e-file batch, object ID 202513179349101031
- IRS Tax Exempt Organization Search for EIN 81-3945624
- Profile updated Nov 8, 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.