Private foundation · EIN 95-2383366 · Carlsbad, California

Harold and Libby Ziff Foundation

Should you approach them?

Don't send a cold proposal. The foundation reports that it only gives to preselected organizations; an introduction through a current grantee or board member is the realistic route.

From the 2025 Form 990-PF: 4 grants paid, $233K total, median $54K. 100% of grants stayed in California.

Accepts applications
No
per 990-PF Part XV
Grants paid, 2025
4
$233K
Median grant
$54K
Stays in CA
100%
of grants
Deadline
—
Assets
$3.4M

Grants paid in 2025

4 grants, all shown · from Form 990-PF Part XV

RecipientPurposeAmount
Jewish Family and Children's Service IncSan Francisco, CAGeneral SUpport$100K
The Center for Jewish Campus LifeStanford, CAGeneral Support$70K
Ronald C Wornick Jewish Day SchoolFoster City, CAGeneral Support$38K
Oshman Family Jewish Community CenterPalo Alto, CAGeneral Support$25K

About this foundation

Harold and Libby Ziff Foundation is a private grantmaking foundation in Carlsbad, California, administered in care of Withumsmithbrown Pc, tax-exempt since 1966. Private foundations must pay out roughly 5% of their assets each year, mostly as grants to 501(c)(3) public charities.

All filings on ProPublica

Does Harold and Libby Ziff Foundation accept grant applications?

No. On its 2025 Form 990-PF the foundation checked that it only makes contributions to preselected organizations. Look for an introduction through a current grantee.

How much does Harold and Libby Ziff Foundation give each year?

In tax year 2025 it paid $233K across 4 grants, a median of $54K.

Where does Harold and Libby Ziff Foundation give?

California (4 grants), per its latest filing.

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