Private Foundation

THE WOLLENBERG FOUNDATION

THE WOLLENBERG FOUNDATION is a Private Foundation headquartered in MENLO PARK, CA. Financial data from the 2024 filing: $2.3M revenue, $2.8M expenses, $31.9M total assets. IRS filings disclose 534 grants awarded by this foundation, totaling roughly $14.9M.

EIN: 946072264 MENLO PARK, CA Latest filing: 2024

Total Revenue$2.3M

Total Expenses$2.8M

Total Assets$31.9M

Grants Given534

Grant Total$14.9M

Filing Years2019–2024

Sample Grants Given

REED COLLEGE

PORTLAND, OR · 2024

RESTRICTED

$450,000

OREGON MUSEUM OF SCIENCE & INDUSTRY

PORTLAND, OR · 2024

UNRESTRICTED

$210,000

FILOLI HISTORIC HOUSE & GARDEN

WOODSIDE, CA · 2024

UNRESTRICTED

$151,000

COLUMBIA THEATRE FOR THE PERFORMING ARTS

LONGVIEW, WA · 2024

UNRESTRICTED

$125,000

SMITH COLLEGE

NORTHAMPTON, MA · 2024

RESTRICTED

$125,000

Showing up to 5 of 534 total records — full history available with membership.

Officers & Directors

TRUSTEE Christopher Wollenberg

TRUSTEE David A Wollenberg

TRUSTEE Richard H Wollenberg

Officer compensation and complete director data available with membership.

Top Grant Purposes

UNRESTRICTED

$10,611,380 483 grants

RESTRICTED

$4,237,500 49 grants

UNRESTRICTEDUNRESTRICTEDUNRESTRICTED

$3,000 2 grants

Financial Trends

Year	Revenue	Expenses	Assets
2024	$2.3M	$2.8M	$31.9M
2023	$1.0M	$2.1M	$32.7M
2022	$1.6M	$2.5M	$33.7M
2020	$-1.2M	$2.4M	$33.7M
2019	$2.0M	$2.5M	$37.4M

Between 2019 and 2024, reported annual revenue grew from $2.0M to $2.3M (+11%), with total assets most recently reported at $31.9M.

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

Grant Geography

Grants from this foundation were reported to recipients in AK, AR, CA, CO, DC, HI, and 4 other states.

AKARCACODCHIIALAMAMD

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

See the full picture for THE WOLLENBERG FOUNDATION

Complete financials, all 534 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