The Argyros Family Foundation concentrates large, philanthropy-scale gifts in Southern California across medical research and hospitals, arts and performing-arts institutions, and education. Their funding pattern favors a small number of high-value grants — often multi-grant relationships — to regionally prominent institutions, with a clear emphasis on health care (pediatric and cancer), cultural anchors, and education initiatives in Orange County and surrounding areas.
A defining feature of the Argyros Family Foundation is its repeated support for City of Hope, including $5,117,661 in 2025 and $5,179,139 in 2024 for medical work in Duarte. That pattern sits within a broader portfolio of large grants to Southern California institutions in health care, arts, and education. The foundation also backed Segerstrom Center for the Arts with $5,064,401 in 2025, pointing to a strong interest in both medical causes and cultural institutions. Across the recent grants list, its giving reaches hospitals, cancer research, pediatric health, universities, and performing-arts organizations, with several recipients appearing year after year. The largest grants are often directed to established institutions in Orange County and nearby Southern California cities, while a smaller set of awards extends to organizations in Texas, Idaho, Virginia, Washington, and Canada. The mix suggests a funder that favors sizable institutional support and long-running relationships rather than scattered, one-time gifts. Its portfolio includes both public-charity support and project-oriented grants, with education and health care appearing alongside arts and community-serving organizations.
Health care is a central thread in the Argyros Family Foundation’s recent giving. It awarded $3,029,082 in 2025 to Choc Children's Foundation for medical purposes and $2,005,260 to Eisenhower Health Foundation. Hospital support also appears in grants to Hoag Hospital Foundation and Eisenhower Medical Center, both of which received multiple awards. In education, the foundation backed the University of Southern California with $2,072,932 in 2025 and $2,521,604 in 2024, and it gave $1,108,050 to Chapman University in 2024. Arts funding is another visible line of support: South Coast Repertory received $1,103,781 in 2024, while Sun Valley Performing Arts Center received $1,075,000 in 2025. The foundation also supported public-charity organizations such as the Milken Institute and the George W Bush Foundation.
Typical grant size sits at $10,000 at the 25th percentile, $23,000 at the median, and $50,000 at the 75th percentile, but the recent grants list also shows a set of much larger institutional awards in the millions. Several recipients appear in multiple years, including City of Hope, Choc Children's Foundation, Hoag Hospital Foundation, South Coast Repertory, Chapman University, and Eisenhower Medical Center, which points to recurring relationships rather than isolated gifts. The foundation is a regular funder, not a DAF, and it does not fund individuals or make program-related investments. The available data does not show an application process, so the giving pattern is best read as relationship-driven institutional philanthropy.
$33.8M
$311.7M
$21.3M
$36.5M
Most grants fall between $10K and $50K, with a median of $23K.
25th Percentile
$10K
Median
$23K
75th Percentile
$50K
Top 2 recipient countries by grant volume for Argyros Family Foundation.
| Rank | Country | Grants | Total | Share |
|---|---|---|---|---|
| 1 | United StatesDomestic | 477 | $102.1M | 99.6% |
| 2 | Canada |
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Concentrated giving: few very large grants account for most dollars, with repeat multi-grant relationships to flagship regional institutions rather than many small awards.
Notable grantees: City of Hope, University of Southern California, CHOC Children's Foundation, Segerstrom Center for the Arts, Orange County School of the Arts Foundation
Grantmaking is concentrated in California, which accounts for 71% of grants to recipients in the HQ state, and the foundation gives most often in Washington by count. Recent recipients cluster in Duarte, Orange, Costa Mesa, Rancho Mirage, Newport Beach, Santa Monica, Santa Ana, Los Angeles, and Irvine. Outside the United States, the recipient distribution includes 2 grants to Canada. The small number of non-U.S. grants sits alongside a strongly regional U.S. pattern, with most awards landing in Southern California.
The recent grants data shows support for hospitals and medical institutions, arts organizations, and universities. Named recipients include City of Hope, Segerstrom Center for the Arts, Choc Children's Foundation, Hoag Hospital Foundation, University of Southern California, and Chapman University.
Yes. Several recipients appear across multiple years, including City of Hope in 2024 and 2025, Choc Children's Foundation in 2024 and 2025, Hoag Hospital Foundation in 2023, 2024, and 2025, and South Coast Repertory in 2023, 2024, and 2025.
The typical grant size distribution is $10,000 at the 25th percentile, $23,000 at the median, and $50,000 at the 75th percentile. The recent grants list also shows much larger awards in the million-dollar range for major institutions.
The foundation gives most often in Washington by grant count, while 71% of grants go to recipients in California, the HQ state. Recent California recipients include Duarte, Orange, Costa Mesa, Rancho Mirage, Newport Beach, and Los Angeles.
No. The foundation does not fund individuals and does not make program-related investments, according to the profile data.
2026
Source: IRS Form 990-PF, fiscal year 2026.
| 2 |
| $1M |
0.4% |
Recipient country reflects the grantee's headquarters per IRS 990-PF and Schedule F filings, not the program's implementation country.
Most recent grants reported to the IRS.
| Recipient | Location | Amount | Year | Purpose |
|---|---|---|---|---|
| CITY OF HOPE | DUARTE, CA | $6,266,371 | 2026 | MEDICAL |
| UNIVERSITY OF SOUTHERN CALIFORNIA | LOS ANGELES, CA | $4,015,451 | 2026 | EDUCATION |
| CHILENO BAY FOUNDATION INC | SCOTTSDALE, AZ | $3,005,278 | 2026 | PUBLIC CHARITY |
| MILKEN INSTITUTE | SANTA MONICA, CA | $2,551,156 | 2026 | PUBLIC CHARITY |
| EISENHOWER MEDICAL CENTER | RANCHO MIRAGE, CA | $2,009,594 | 2026 | MEDICAL |
| SUN VALLEY PERFORMING ARTS CENTER | KETCHUM, ID | $1,752,009 | 2026 | ARTS |
| HOAG HOSPITAL FOUNDATION | NEWPORT BEACH, CA | $1,727,513 | 2026 | MEDICAL |
| CHAPMAN UNIVERSITY | ORANGE, CA | $1,050,227 | 2026 | EDUCATION |
| GEORGE W BUSH PRESIDENTIAL CENTER | DALLAS, TX | $1,048,596 | 2026 | PUBLIC CHARITY |
| LOS ANGELES FIRE DEPARTMENT FOUNDATION | LOS ANGELES, CA | $1,000,000 | 2026 | PUBLIC CHARITY |
| UC IRVINE FOUNDATION | IRVINE, CA | $758,530 | 2026 | EDUCATION |
| BLAIR HOUSE FOUNDATION | WASHINGTON, DC | $700,000 | 2026 | PUBLIC CHARITY |
| ALZHEIMER'S ASSOCIATION ORANGE COUNTY CHAPTER | ORANGE, CA | $570,148 | 2026 | MEDICAL |
| AFTER SCHOOL ALL STARS | LOS ANGELES, CA | $559,270 | 2026 | EDUCATION |
| HORATIO ALGER ASSOC OF DISTING AMERICAN | ALEXANDRIA, VA | $539,660 | 2026 | PUBLIC CHARITY |
| SHERMAN LIBRARY & GARDENS | CORONA DEL MAR, CA | $500,409 | 2026 | PUBLIC CHARITY |
| HOUSE OF VICTORY - USC NIL FUNDS | OAKLAND, CA | $500,000 | 2026 | PUBLIC CHARITY |
| USC-SCHOOL OF DRAMATIC ARTS | LOS ANGELES, CA | $500,000 | 2026 | PUBLIC CHARITY |
| USC-MARSHALL SCHOOL OF BUSINESS | LOS ANGELES, CA | $500,000 | 2026 | EDUCATION |
| HOOVER INSTITUTION | STANFORD, CA | $499,289 | 2026 | EDUCATION |
| SOUTH COAST REPERTORY | COSTA MESA, CA | $267,329 | 2026 | ARTS |
| LAURA'S HOUSE | LADERA RANCH, CA | $250,111 | 2026 | PUBLIC CHARITY |
| ELEPHANT CLUB | SAN CLEMENTE, CA | $190,000 | 2026 | PUBLIC CHARITY |
| BLAINE COUNTY 4-H LEADERS | HAILEY, ID | $162,000 | 2026 | PUBLIC CHARITY |
| RONALD REAGAN PRESIDENTIAL FOUNDATION | SIMI VALLEY, CA | $125,000 | 2026 | PUBLIC CHARITY |
| AMERICAN RED CROSS | WASHINGTON, DC | $105,000 | 2026 | MEDICAL |
| PEDIATRIC CANCER RESEARCH FOUNDATION | IRVINE, CA | $101,509 | 2026 | PUBLIC CHARITY |
| CROSWELL OPERA HOUSE & FINE ARTS ASSOCIATION | ADRIAN, MI | $100,000 | 2026 | ARTS |
| JOHN TRACY CENTER | LOS ANGELES, CA | $100,000 | 2026 | MEDICAL |
| UNLIMITED POSSIBILITIES | IRVINE, CA | $100,000 | 2026 | PUBLIC CHARITY |
| FILM INDEPENDENT INC | LOS ANGELES, CA | $100,000 | 2026 | ARTS |
| STARS AND STRIPES CHILDREN'S FOUNDATION | LAGUNA NIGUEL, CA | $83,500 | 2026 | PUBLIC CHARITY |
| BOYS AND GIRLS CLUB OF CENTRAL ORANGE COAST | IRVINE, CA | $75,000 | 2026 | PUBLIC CHARITY |
| BALBOA ISLAND MUSEUM & HISTORICAL SOCIETY | BALBOA ISLAND, CA | $65,000 | 2026 | PUBLIC CHARITY |
| HUDSON RIVER MARITIME MUSEUM | KINGSTON, NY | $53,473 | 2026 | PUBLIC CHARITY |
| WORD OF HONOR FUND | BELLEVUE, ID | $53,473 | 2026 | PUBLIC CHARITY |
| MUSICAL THEATRE ACADEMY OF ORANGE COUNTY | NEWPORT BEACH, CA | $50,250 | 2026 | ARTS |
| PACIFIC BATTLESHIP CENTER - BATTLESHIP USS IOWA MUSEUM | LOS ANGELES, CA | $50,000 | 2026 | PUBLIC CHARITY |
| TROJAN SIG FOUNDATION | LOS ANGELES, CA | $50,000 | 2026 | PUBLIC CHARITY |
| MISSING PERSONS FOUNDATION | LAKE FOREST, CA | $50,000 | 2026 | PUBLIC CHARITY |
| PACIFIC MARINE MAMMAL CENTER | LAGUNA BEACH, CA | $50,000 | 2026 | PUBLIC CHARITY |
| KRISTIN CHENOWETH ARTS & EDUCATION FUND | WOODLAND HILLS, CA | $50,000 | 2026 | ARTS |
| NEWPORT BEACH FIRE DEPARTMENT FOUNDATION | NEWPORT BEACH, CA | $50,000 | 2026 | PUBLIC CHARITY |
| LOS ANGELES POLICE FOUNDATION | LOS ANGELES, CA | $50,000 | 2026 | PUBLIC CHARITY |
| NEWPORT BEACH CHAMBER FOUNDATION | NEWPORT BEACH, CA | $50,000 | 2026 | PUBLIC CHARITY |
| UNIVERSITY OF LA VERNE | LA VERNE, CA | $50,000 | 2026 | EDUCATION |
| SUN VALLEY WRITERS CONFERENCE | SUN VALLEY, ID | $40,000 | 2026 | PUBLIC CHARITY |
| ACT OUT THEATRE COMPANY | SIGNAL HILL, CA | $40,000 | 2026 | ARTS |
| PACIFIC SYMPHONY ASSOCIATION | IRVINE, CA | $35,000 | 2026 | PUBLIC CHARITY |
| SUN VALLEY SYMPHONY | SUN VALLEY, ID | $31,120 | 2026 | ARTS |
SUN VALLEY PERFORMING ARTS CENTER
$1,752,009ARTS
ALZHEIMER'S ASSOCIATION ORANGE COUNTY CHAPTER
$570,148MEDICAL
HORATIO ALGER ASSOC OF DISTING AMERICAN
$539,660PUBLIC CHARITY
SHERMAN LIBRARY & GARDENS
$500,409PUBLIC CHARITY
HOUSE OF VICTORY - USC NIL FUNDS
$500,000PUBLIC CHARITY
USC-SCHOOL OF DRAMATIC ARTS
$500,000PUBLIC CHARITY
USC-MARSHALL SCHOOL OF BUSINESS
$500,000EDUCATION
SOUTH COAST REPERTORY
$267,329ARTS
LAURA'S HOUSE
$250,111PUBLIC CHARITY
RONALD REAGAN PRESIDENTIAL FOUNDATION
$125,000PUBLIC CHARITY
CROSWELL OPERA HOUSE & FINE ARTS ASSOCIATION
$100,000ARTS
UNLIMITED POSSIBILITIES
$100,000PUBLIC CHARITY
BALBOA ISLAND MUSEUM & HISTORICAL SOCIETY
$65,000PUBLIC CHARITY
MUSICAL THEATRE ACADEMY OF ORANGE COUNTY
$50,250ARTS
TROJAN SIG FOUNDATION
$50,000PUBLIC CHARITY
MISSING PERSONS FOUNDATION
$50,000PUBLIC CHARITY
KRISTIN CHENOWETH ARTS & EDUCATION FUND
$50,000ARTS
NEWPORT BEACH FIRE DEPARTMENT FOUNDATION
$50,000PUBLIC CHARITY
NEWPORT BEACH CHAMBER FOUNDATION
$50,000PUBLIC CHARITY
SUN VALLEY WRITERS CONFERENCE
$40,000PUBLIC CHARITY
ACT OUT THEATRE COMPANY
$40,000ARTS
PACIFIC SYMPHONY ASSOCIATION
$35,000PUBLIC CHARITY
SUN VALLEY SYMPHONY
$31,120ARTS