Harold and Libby Ziff Foundation
Private foundation · Carlsbad, CA · EIN 95-2383366 · reported 2023–2025 · files as Harold & Libby Ziff Foundation
16grants reported
$23Kmedian award
$2,500lower quartile
$360smallest grant
$456Ktotal paid
2states reached
3years giving
This foundation funds faith-based organizations. 13 of its 16 reported grants went to churches, ministries or other religious organizations, $423K in total. That is what it paid, not what it says in a policy.
Gives every year. This foundation reported grants in 2023, 2024, 2025. A funder that shows up year after year is worth a letter even if this year is a no.
Where to write
5780 Fleet St Ste 310
Carlsbad, CA 92008-4714
Address as registered with the IRS. Most foundations this size have no website and no application form, which is not a dead end: a short letter to this address is the whole process, and almost nobody sends one.
Who they funded
| Recipient and stated purpose | Where | Amount |
|---|---|---|
| Jewish Family and Children's Service Inc | San Francisco, CA | $100,000 |
| The Center for Jewish Campus Life | Stanford, CA | $70,000 |
| The Center for Jewish Campus Life | Stanford, CA | $70,000 |
| Ronald C Wornick Jewish Day School | Foster City, CA | $37,500 |
| Ronald C Wornick Jewish Day School | Foster City, CA | $37,500 |
| Friends of the Israel Defense Forces | New York, NY | $30,000 |
| Oshman Family Jewish Community Center | Palo Alto, CA | $25,000 |
| Jewish Family and Children's Service Inc | San Francisco, CA | $25,000 |
| Oshman Family Jewish Community Center | Palo Alto, CA | $21,600 |
| Ronald C Wornick Jewish Day School | Foster City, CA | $15,400 |
| Oshman Family Jewish Community Center | Palo Alto, CA | $15,045 |
| Jewish Community Relations Council | San Francisco, CA | $5,045 |
| The Central Fund of Israel | Cedarhurst, NY | $2,500 |
| Jewish Funders Network | New York, NY | $910 |
| American Friends of the Israel Museum | New York, NY | $500 |
| Jewish Funders Network | New York, NY | $360 |
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