Argyros Family Foundation
At a glance
Key takeaways
- Argyros Family Foundation, based in Costa Mesa, CA, funds medical organisations, educational institutions and arts bodies, alongside a broad mix of other public charities, so a small nonprofit whose work sits in one of these areas has a plausible fit.
- Most of its grants fall between $5,000 and $550,000, and half of its grants to organisations are about $24,500 or less, so a modest request is the realistic starting point; its largest grant was about $6,250,000, so that figure is not a ceiling.
- The filings say grants are typically paid for special projects and situations, so frame the request around a specific project rather than general running costs.
- Submissions are due by 1 June and should include your organisation's identity and historical background, the intended use of the contribution, your federal identification number, and a copy of your IRS determination letter showing 501(c)(3) exemption.
- Repeat funding is a strong feature, since 90% of its grant dollars to organisations went to groups it had also funded in earlier filings, so a first approach should be made with care and a clear link to its existing areas of giving.
Overview
Argyros Family Foundation is a US private foundation based in Costa Mesa, CA.
What they fund
Profile based on the foundation's IRS Form 990-PF filings (TY2024, TY2023, TY2022) only: no website or other web source for the foundation was found. Every statement is checked against the filings. Sources read on 12 October 2026.
Priority Areas
The foundation's recorded giving reaches medical organisations, educational institutions and arts bodies, as well as a broad mix of other public charities. Its grantees include hospitals, universities, performing arts organisations and museums, alongside youth and community groups and religious organisations. The filings say grants are typically paid for special projects and situations. Giving is strongly concentrated in California, although grants also reach other states and recipients outside the United States. Recorded purposes include medical care, education, arts and religious giving, alongside grants described as public charity.
Geographic Focus
No geographic focus is stated; the filings show grants mainly in California and Idaho.
How to apply
Provide the requesting organisation's identity and historical background, intended use of the contribution, federal identification number, and a copy of the IRS determination letter showing 501(c)(3) exemption.
Deadlines: Submissions are due by 1 June.
Application success factors
- Repeat giving: In its TY2024 filing, 90% of its grant dollars to organisations went to organisations it had also funded in its TY2022 or TY2023 filing.
- Grant size: Across its TY2022, TY2023 and TY2024 filings, half of its 380 grants to organisations were about $24,500 or less.
What the foundation says:
- The foundation typically pays grants for special projects and situations.
Where grants go
From grants to organisations in the foundation’s filings for tax years 2022–2024.
Grant dollars by state
6 other states: <1%
Outside the US or with no state on the filing: 1%
- The largest single recipient received 19% of grant dollars to organisations.
- In tax year 2024, 90% of grant dollars went to organisations Argyros Family Foundation had funded in earlier filings.
- 1% of grant dollars went directly to organisations outside the US (Canada).
- 4% of grant dollars went to intermediaries that regrant to other organisations.
Grants
How much do they typically give?
Share of 132 grants in tax year 2024 by size
Median $25,000 (tax year 2024)
The largest grants to organisations in the foundation’s latest filing:
- City of Hope · Medical$6,266,3712024 tax year
- University of Southern California · Education$4,015,4512024 tax year
- Chileno Bay Foundation · Public charity$3,005,2782024 tax year
- Milken Institute · Public charity$2,551,1562024 tax year
- Eisenhower Medical Center · Medical$2,009,5942024 tax year
- Sun Valley Performing Arts Center · Arts$1,752,0092024 tax year
- Hoag Hospital Foundation · Medical$1,727,5132024 tax year
- Chapman University · Education$1,050,2272024 tax year
Grants to organisations listed in the foundation’s Form 990-PF filings. Grants to individuals are not shown.
Officers and directors
- Varden Amloyan — CFO & Treasurer
- Melissa Argyros — Co-CEO & Director
- Stephanie Argyros — Co-CEO & Director
- Brent Law — Secretary, CIO & Director
- Kevin Hauber — President
From the latest Form 990-PF filing
3 years of tax filings
| Year | Total expenses | Grants paid | Assets | Filing document |
|---|---|---|---|---|
| 2022 tax year | $22,597,503 | $20,952,017 | $297,948,466 | Filing for 2022 tax year |
| 2023 tax year | $37,989,800 | $34,402,506 | $467,182,840 | Filing for 2023 tax year |
| 2024 tax year | $36,547,026 | $33,774,256 | $493,298,577 | Filing for 2024 tax year |
Figures from the foundation’s IRS Form 990-PF filings. Assets are at fair market value at year end. The document icon links to each year’s filing on ProPublica Nonprofit Explorer.
Sources
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At a glance
Applying to Argyros Family Foundation?
Hinchilla drafts your answers around this funder's priorities, using your organisation's own documents.
No credit card required
Contact
- (714) 481-5000
- Costa Mesa, CA
Applying to Argyros Family Foundation?
Hinchilla drafts your answers around this funder's priorities, using your organisation's own documents.
No credit card required
Contact
- (714) 481-5000
- Costa Mesa, CA