Private Foundation

GREENSIDE FOUNDATION C/O GARY VANDEWEGHE

GREENSIDE FOUNDATION C/O GARY VANDEWEGHE is a private foundation categorized as Private Foundation based in SAN JOSE, CA. Its most recent IRS filing (2025) reports revenue of $141K, expenses of $85K, total assets of $1.3M. Imperigo tracks 290 reported grants from this foundation totaling approximately $482K.

EIN: 770388999 SAN JOSE, CA Latest filing: 2025

Total Revenue$141K

Total Expenses$85K

Total Assets$1.3M

Grants Given290

Grant Total$482K

Filing Years2021–2025

Sample Grants Given

PLANNED PARENTHOOD

SAN JOSE, CA · 2025

GENERAL OPERATIONS

$15,000

CAMP DEL CORAZON

NO HOLLYWOOD, CA · 2025

GENERAL OPERATIONS

$10,000

SILICON VALLEY INDEPENDENT LIVING CENTER

SAN JOSE, CA · 2025

GENERAL OPERATIONS

$5,000

KQED

SAN FRANCISCO, CA · 2025

GENERAL OPERATIONS

$4,000

THE BISHOP'S SCHOOL

LA JOLLA, CA · 2025

GENERAL OPERATIONS

$3,000

Showing up to 5 of 290 total records — full history available with membership.

Officers & Directors

TRUSTEE Barbara M Vandeweghe

TRUSTEE Gary S Vandeweghe

TRUSTEE Tiffany A Vandeweghe Cleary

TRUSTEE Tracy A Vandeweghe Balsdon

Officer compensation and complete director data available with membership.

Top Grant Purposes

GENERAL OPERATIONS

$473,624 284 grants

GENERAL OPERATION

$8,050 6 grants

Financial Trends

Year	Revenue	Expenses	Assets
2025	$141K	$85K	$1.3M
2024	$148K	$81K	$1.3M
2023	$85K	$87K	$1.2M
2022	$93K	$97K	$1.2M
2021	$171K	$87K	$1.2M

Between 2021 and 2025, reported annual revenue declined from $171K to $141K (-18%), with total assets most recently reported at $1.3M.

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

Grant Geography

Grants from this foundation were reported to recipients in CA, CO, DC, MA, MD, NC, and 4 other states.

CACODCMAMDNCNHNYTNWA

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

See the full picture for GREENSIDE FOUNDATION C/O GARY VANDEWEGHE

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