Private Foundation

ARRILLAGA FOUNDATION

ARRILLAGA FOUNDATION is a private foundation categorized as Private Foundation based in PALO ALTO, CA. Its most recent IRS filing (2024) reports revenue of $28.7M, expenses of $9.8M, total assets of $50.9M. Imperigo tracks 100 reported grants from this foundation totaling approximately $35.6M.

EIN: 942460896 PALO ALTO, CA Latest filing: 2024

Total Revenue$28.7M

Total Expenses$9.8M

Total Assets$50.9M

Grants Given100

Grant Total$35.6M

Filing Years2019–2024

Sample Grants Given

SAN MATEO COUNTY SHERIFF'S OFFICE FOUNDATION

REDWOOD CITY, CA · 2024

CONSTRUCTION OF THE NEW SAN MATEO COUNTY SHERIFF'S OFFICE

$3,500,000

THE TEAK FELLOWSHIP

NEW YORK, NY · 2024

THE MARC E. BECKER ENDOWMENT FOR LEADERSHIP AND PROFESSIONAL DEVELOPMENT

$1,000,000

LUCILE PACKARD FOUNDATION FOR CHILDREN'S HEALTH

PALO ALTO, CA · 2024

DR. JENNY FRANKOVICH'S PANS INFECTION RESEARCH

$500,000

BROWN UNIVERSITY

PROVIDENCE, RI · 2024

PAID STUDENT LEARNING OPPORTUNITIES

$500,000

CAMBODIAN CHILDREN'S FUND

SANTA MONICA, CA · 2024

EDUCATIONAL PROGRAMMING

$400,000

Showing up to 5 of 100 total records — full history available with membership.

Officers & Directors

CO-PRESIDENT John Arrillaga Jr

SECRETARY Justine Stamen Arrillaga

CO-PRESIDENT Laura Arrillaga-Andreessen

TREASURER Marc Andreessen

Officer compensation and complete director data available with membership.

Top Grant Purposes

FIGHTING CHANCE CAPITAL CAMPAIGN

$10,000,000 1 grant

BUILDING NEW STUDENT CENTER

$5,000,000 1 grant

CONSTRUCTION OF THE NEW SAN MATEO COUNTY SHERIFF'S OFFICE

$3,500,000 1 grant

DORMITORY CONSTRUCTION PROJECT

$3,478,071 1 grant

STAMEN ARRILLAGA ASSOCIATE DEANSHIP FOR FINANCIAL ADVISING

$2,000,000 1 grant

Financial Trends

Year	Revenue	Expenses	Assets
2024	$28.7M	$9.8M	$50.9M
2023	$2.3M	$3.5M	$31.8M
2022	$30.4M	$25.7M	$38.0M
2020	$1.1M	$1.7M	$26.5M
2019	$1.5M	$949K	$27.0M

Between 2019 and 2024, reported annual revenue grew from $1.5M to $28.7M (+1786%), with total assets most recently reported at $50.9M.

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

Grant Geography

Grants from this foundation were reported to recipients in CA, HI, MA, NY, PA, RI, and 3 other states.

CAHIMANYPARITXVAWA

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

See the full picture for ARRILLAGA FOUNDATION

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