Private foundation · EIN 94-3306221 · San Francisco, California · Philanthropy & grantmaking

William E and Aenid R Weisgerber 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: 10 grants paid, $361K total, median $5,000. 90% of grants stayed in California.

Accepts applications
No
per 990-PF Part XV
Grants paid, 2025
10
$361K
Median grant
$5,000
Stays in CA
90%
of grants
Deadline
—
Assets
$4.0M

Grants paid in 2025

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

RecipientPurposeAmount
California Pacific Medical Center FoundationSan Francisco, CASupport the Weisgerber Cardiology Support Fund, SPF No. 20530$160K
Lucile Packard Foundation for Children's HealthPalo Alto, CASupport "Physical Activity and Exercise in Youth with Type 1 Diabetes" research project$86K
Diabetes Youth FamiliesConcord, CAGeneral support$60K
American Red CrossSan Francisco, CASupport the Emergency Response Fund for victims of the Southern California wildfires$25K
Classical California KdfcLos Angeles, CAGeneral support$5,000
Dream VolunteersMountain View, CASupport funding of scholarships for students in Guatemala, Costa Rica, Ghana, Vietnam and India who have limited access to education$5,000
KqedCity of Industry, CAGeneral support$5,000
Partners in HealthFrederick, MDSupport for children in Haiti suffering from malnutrition$5,000
San Francisco Chamber of Commerce FoundationSan Francisco, CASupport the Job Forum program$5,000
San Francisco Chamber of Commerce FoundationSan Francisco, CASupport the Job Forum program$5,000

By state: California 9 · Maryland 1

About this foundation

William E and Aenid R Weisgerber Foundation is a private grantmaking foundation in San Francisco, California, administered in care of Pillsbury Madison & Sutro, tax-exempt since 1999. 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 William E and Aenid R Weisgerber 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 William E and Aenid R Weisgerber Foundation give each year?

In tax year 2025 it paid $361K across 10 grants, a median of $5,000.

Where does William E and Aenid R Weisgerber Foundation give?

California (9 grants), Maryland (1 grants), per its latest filing.

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