Arrillaga Foundation
Preselected recipients only
Arrillaga Foundation is a private foundation in Palo Alto, California. In tax year 2024 it gave $9.5 million in 53 grants; the typical grant was $50,000 and the largest $3.5 million. It only gives to organizations it selects itself and does not accept unsolicited applications.
From its IRS Form 990-PF for tax year 2024.
- Grants paid, 2024$9.5 million
- Number of grants53
- Typical grant$50,000
- Largest grant$3.5 million
- Assets$50.9 million
- New grantees98%
Giving in 2024 was up from $3.4 million the year before.
98% of its 2024 grantees had not received a grant from it the year before, a sign it is open to new organizations.
Giving by year
| Tax year | Grants paid | Number of grants | Assets |
|---|---|---|---|
| 2023 | $3.4 million | 12 | $31.8 million |
| 2024 | $9.5 million | 53 | $50.9 million |
How to apply
Arrillaga Foundation says in its IRS filing that it only makes contributions to preselected organizations, so unsolicited applications are unlikely to be considered. Organizations it funds are usually invited.
What Arrillaga Foundation funds
Where it gives
Its grants went to recipients in 9 states, the most to California.
| State | Grants | Amount |
|---|---|---|
| California | 24 | $6.0 million |
| New York | 10 | $1.5 million |
| Rhode Island | 1 | $500,000 |
| Hawaii | 9 | $485,000 |
| Massachusetts | 3 | $410,000 |
| Virginia | 2 | $289,000 |
| Texas | 2 | $147,000 |
| Pennsylvania | 1 | $100,000 |
| Washington | 1 | $50,000 |
Grants paid in 2024
| Recipient | Purpose | Amount |
|---|---|---|
| San Mateo County Sheriff's Office Foundation | Construction of the new san mateo county sheriff's office | $3.5 million |
| The Teak Fellowship | The marc e. Becker endowment for leadership and professional development | $1.0 million |
| Brown University | Paid student learning opportunities | $500,000 |
| Lucile Packard Foundation for Children's Health | Dr. Jenny frankovich's pans infection research | $500,000 |
| Cambodian Children's Fund | Educational programming | $400,000 |
| President and Fellows of Harvard College | Harvard t.h. Chan school of public health - food allergy study & research | $350,000 |
| Caf America - McA Australia Mehretu Exhibition | General support | $264,000 |
| West Maui Improvement Foundation | Olowalu firestation fundraiser | $250,000 |
| The UCLA Foundation | The rape treatment center - general support | $250,000 |
| Ready to Succeed | Ready to succeed alumni and early career engagement program | $200,000 |
| Vision to Learn | General support | $200,000 |
| Silicon Valley Social Venture Fund - SV2 | General operating | $150,000 |
| Questbridge | Feasibility study program | $150,000 |
| The Teak Fellowship | Cats and swim programs | $100,000 |
| Downtown Women's Center | General support | $100,000 |
| Israel Tennis Centers Foundation Inc | General support | $100,000 |
| Loyola Marymount University | Loyola project for the innocent program | $100,000 |
| Maccabi USA Inc | Financial aid endowment | $100,000 |
| Storycorps | General support | $100,000 |
| Ballroom Marfa | General support | $100,000 |
| Silicon Valley Social Venture Fund - SV2 | General operating | $85,000 |
| Al Wooten Jr Youth Center | General support | $50,000 |
| Association to Benefit Children | General support | $50,000 |
| Boston Children's Hospital | Research for gut brain interaction | $50,000 |
| Cedars-Sinai Medical Center | Research in gut microbiome | $50,000 |
| Gigi's Playhouse NYC | General support | $50,000 |
| Harvard-Westlake School | Financial aid program | $50,000 |
| Hawai'i Foodbank | Keiki school pantry program | $50,000 |
| Kapi'olani Health Foundation | Abbie vara pediatric services fund | $50,000 |
| Pacific American Foundation | Nalu studies program | $50,000 |
| The Peninsula Bridge Program | General support | $50,000 |
| University of Washington Foundation | Uw medicine family planning fund | $50,000 |
| Ballroom Marfa | General support | $47,000 |
| Ronald McDonald House Charities of Hawaii | General support | $35,000 |
| San Francisco General Hospital Foundation | General operating | $25,000 |
| Cerebral Palsy Soccer Inc | General support | $25,000 |
| Determined to Succeed | General support | $25,000 |
| Food Allergy Research & Education | Food allergy research | $25,000 |
| The John Thomas Dye School | Financial assistance program | $25,000 |
| Legal Outreach Inc | General support | $25,000 |
Officers and trustees
- Laura Arrillaga-Andreessen
- John Arrillaga Jr
- Marc Andreessen
- Justine Stamen Arrillaga
Questions people ask
Does Arrillaga Foundation accept grant applications?
No. Its IRS filing says it only makes contributions to preselected organizations.
How much does Arrillaga Foundation give?
$9.5 million in tax year 2024, across 53 grants, with a typical grant of $50,000.
Who runs Arrillaga Foundation?
Its 2024 filing lists Laura Arrillaga-Andreessen (Co-President), John Arrillaga Jr (Co-President), Marc Andreessen (Treasurer) and Justine Stamen Arrillaga (Secretary).
What does Arrillaga Foundation fund?
Based on its grants, mainly education, youth programs and health.