Private Foundation

G W WILLIAMS FOUNDATION

G W WILLIAMS FOUNDATION is a private foundation categorized as Private Foundation based in SAN MATEO, CA. Its most recent IRS filing (2025) reports revenue of $76K, expenses of $52K, total assets of $440K. Imperigo tracks 88 reported grants from this foundation totaling approximately $269K.

EIN: 946095718 SAN MATEO, CA Latest filing: 2025

Total Revenue$76K

Total Expenses$52K

Total Assets$440K

Grants Given88

Grant Total$269K

Filing Years2021–2025

Sample Grants Given

SAN MATEO COUNTY HISTORICAL ASSOC

REDWOOD CITY, CA · 2024

EDUCATION

$30,000

MILLS PENINSULA FOUNDATION

BURLINGAME, CA · 2024

MEDICAL SUPPORT

$5,000

COASTSIDE LAND TRUST

HALF MOON BAY, CA · 2024

ENVIRONMENT

$5,000

MISSION HOSPICE & HOME CARE

SAN MATEO, CA · 2024

HUMAN SERVICES

$3,000

JOBTRAIN

MENLO PARK, CA · 2024

EDUCATION

$1,000

Showing up to 5 of 88 total records — full history available with membership.

Officers & Directors

VICE PRESIDE Charles E Rosebrook

SECRETARY Kathryn Williams

PRESIDENT Robert P Berryman Jr

TREASURER Zane Fischer

Officer compensation and complete director data available with membership.

Top Grant Purposes

EDUCATION

$46,000 9 grants

MEDICAL IMPROVEMENT

$34,000 14 grants

HISTORICAL EDUCATION

$31,345 6 grants

DISASTER RELIEF

$24,400 2 grants

HOME CARE

$24,000 6 grants

Financial Trends

Year	Revenue	Expenses	Assets
2025	$76K	$52K	$440K
2024	$60K	$29K	$408K
2023	$17K	$24K	$372K
2022	$55K	$24K	$380K
2021	$1K	$25K	$325K

Between 2021 and 2025, reported annual revenue grew from $1K to $76K (+7252%), with total assets most recently reported at $440K.

Interactive year-over-year charts and full filing details available with membership.

Grant Geography

Grants from this foundation were reported to recipients in CA, CT, FL, MA, NY, TN, and 1 other state.

CACTFLMANYTNWA

Full geographic grant map with state-by-state breakdown available with membership.

See the full picture for G W WILLIAMS FOUNDATION

Complete financials, all 88 grant records, officer compensation, year-over-year trend charts, a geographic grant map, and data exports — across 498,000+ organizations.

Full Financial History Complete Grant Activity Officer Compensation Year-over-Year Charts Geographic Grant Map Data Exports