The Kellen Foundation concentrates very large, long-term gifts to major New York-based cultural and medical institutions, with secondary national giving to top-tier hospitals and research centers. Their support skews toward flagship museums, performing arts organizations, and elite medical/research hospitals, often via multi-grant commitments to the same organizations. Grants are highly concentrated in New York City but include notable national health and research beneficiaries (e.g., Mayo Clinic). The foundation also makes targeted gifts to conservation, media, and specialized arts training programs.
Anna-maria and Stephen Kellen Foundation Inc C/o Joel E Sammet & Co LLP makes unusually large, repeated gifts to a small circle of major institutions, especially New York hospitals, museums, and research organizations. The recent record shows multi-year support for Hospital for Special Surgery, Weill Cornell Medical Center, and the Metropolitan Museum of Art, with each receiving seven-figure grants across multiple years. That pattern points to sustained institutional backing rather than one-off awards. Medical giving is a major thread. The foundation gave $12,666,665 to Hospital for Special Surgery in 2023, $10,535,000 to Weill Cornell Medical Center in 2025, and $10,800,000 to Mayo Clinic in 2024. Cultural support is similarly concentrated, with $7,847,659 to the Metropolitan Museum of Art in 2025 and $3,350,000 to the Frick Collection in 2024. It also extends to organizations such as Carnegie Hall Society, Rockefeller University, and American Academy in Berlin. Most grants are tied to general tax-exempt purposes, indicating flexible support for institutions rather than tightly restricted project funding. The foundation’s grantmaking is regional in scope but reaches beyond New York to a smaller set of national and international beneficiaries.
In health and biomedical research, the foundation backs major hospitals and research centers with large general-purpose awards. Examples include $4,833,333 to Hospital for Special Surgery in 2025, $5,100,000 to Rockefeller University in 2024, and $2,000,000 to Melanoma Research Alliance Foundation in 2025. Arts and culture are another clear focus. The foundation gave $3,220,000 to Carnegie Hall Society in 2025 and $2,045,000 to Carnegie Hall Society in 2024, showing repeated support for performing arts infrastructure. It also provided $2,200,000 to Wnetorg in 2025, adding media and public broadcasting to its cultural giving. Beyond New York institutions, the foundation funds exchange and conservation work. It awarded $2,986,268 to American Academy in Berlin in 2025 and $2,500,000 to Winnakee Land Trust in 2024, linking its portfolio to international cultural exchange and local land conservation.
$36.5M
$55.5M
$4.2M
$36.9M
Most grants fall between $25K and $200K, with a median of $58K.
25th Percentile
$25K
Median
$58K
75th Percentile
$200K
Top 4 recipient countries by grant volume for Anna-Maria and Stephen Kellen Foundation Inc C/O Joel E Sammet & Co Llp.
| Rank | Country | Grants | Total | Share |
|---|---|---|---|---|
| 1 | United StatesDomestic | 720 | $4.7B | 98.2% |
| 2 |
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Concentrated, high-value grants with repeated multi-grant relationships; a relatively small number of large institutional beneficiaries dominate giving, primarily NYC-based cultural and medical organizations, with occasional strategic national gifts.
Notable grantees: Hospital for Special Surgery, Weill Cornell Medical Center, Metropolitan Museum of Art, Mayo Clinic, Carnegie Hall
Typical grant size is $25,000 at the 25th percentile, $58,150 at the median, and $200,000 at the 75th percentile, but the recent grants list shows a much larger upper tier for institutional awards. The pattern is recurrent: several recipients appear in multiple years, including Hospital for Special Surgery, Metropolitan Museum of Art, Mayo Clinic, Rockefeller University, and Carnegie Hall Society. The foundation is a regular funder, not a DAF, and it does not fund individuals or make program-related investments. The grant descriptions are overwhelmingly broad-purpose, using general tax-exempt or general charitable language.
Grantmaking is highly concentrated in New York: 77% of grants go to recipients in the HQ state, and New York is also the top state by grant count. New York City organizations dominate the recent list, including the Metropolitan Museum of Art, Weill Cornell Medical Center, Frick Collection, Carnegie Hall Society, and Columbia University. Outside New York, major recipients include Mayo Clinic in Rochester, Minnesota; Melanoma Research Alliance Foundation in Washington, DC; and American Academy in Berlin in Berlin, Germany.
It concentrates on major New York cultural and medical institutions, especially museums, performing arts groups, hospitals, and biomedical research centers. Recent grants include large support for institutions such as the Metropolitan Museum of Art, Weill Cornell Medical Center, Rockefeller University, and Carnegie Hall Society.
Recurring support is a clear pattern. Several organizations appear in multiple years, including Hospital for Special Surgery, Metropolitan Museum of Art, Mayo Clinic, Rockefeller University, and Carnegie Hall Society. The repeated grants suggest ongoing institutional relationships.
The reported distribution is $25,000 at the 25th percentile, $58,150 at the median, and $200,000 at the 75th percentile. The recent grants list also includes much larger institutional awards in the millions, showing a two-tier pattern between smaller grants and major commitments.
Most grants go to New York recipients: 77% of grants are to organizations in the HQ state, and New York is the top state by grant count. Recent recipients are heavily concentrated in New York City, with additional grants going to Rochester, Minnesota; Washington, DC; and Berlin, Germany.
2026
Source: IRS Form 990-PF, fiscal year 2026.
| Germany |
| 5 |
| $10.3M |
0.7% |
| 3 | France | 5 | $710K | 0.7% |
| 4 | United Kingdom | 3 | $75K | 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 |
|---|---|---|---|---|
| AMERICAN ACADEMY IN BERLIN | BERLIN GERMANY | $2,251,913 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| WINNAKEE LAND TRUST | RHINEBECK, NY | $2,000,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| COLUMBIA BUSINESS SCHOOL | NEW YORK, NY | $1,750,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| RAS AI FOUNDATION | LOS ANGELES, CA | $1,500,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| AMERICAN ACADEMY IN BERLIN | BERLIN | $1,051,833 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| THE METROPOLITAN MUSEUM OF ART | NEW YORK, NY | $1,000,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| NUVANCE HEALTH | DANBURY, CT | $1,000,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| MELANOMA RESEARCH ALLIANCE FOUNDATION | WASHINGTON, DC | $1,000,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| NEW YORK PHILLHARMONIC | NEW YORK, NY | $815,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| FIDELITY CHARITABLE FUND | BOSTON, MA | $598,633 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| THIRD STREET MUSIC SCHOOL SETTLEMENT | NEW YORK, NY | $580,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| CANCER RESEARCH INSTITUTE | NEW YORK, NY | $550,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| BARD COLLEGE | ANNANDALEONHUDSON, NY | $550,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| EAST HILL SYNAGOGUE CHESSED FUND | ENGLEWOOD, NJ | $500,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| ACT OF CONNECTICUT INC | RIDGEFIELD, CT | $500,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| GUGGENHEIM MUSEUM | NEW YORK, NY | $425,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| ETON COLLEGE AMERICAN FRIENDS OF ETON COLLEGE | MCLEAN, VA | $400,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| COLUMBIA UNIVERSITYDEPT OF OPHTHALMOLOGY | NEW YORK, NY | $400,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| WOMEN IN NEED | NEW YORK, NY | $377,050 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| SCULPTURECENTER | LONG ISLAND CITY, NY | $350,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| SILVER HILL HOSPITAL | NEW CANAAN, CT | $300,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| METROPOLITAN OPERA ASSOCIATION INC | NEW YORK, NY | $250,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| NEW YORK STEM CELL FOUNDATION | NEW YORK, NY | $250,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| ART21 INC | NEW YORK, NY | $250,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| SANDY HOOK PROMISE | NEWTOWN, CT | $250,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| PARSONSNEW SCHOOL | NEW YORK, NY | $200,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| CENTRAL PARK CONSERVANCY | NEW YORK, NY | $200,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| CONVENT OF THE SACRED HEART SCHOOL OF NEW YORK | NEW YORK, NY | $200,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| CHALKBEAT | NEW YORK, NY | $200,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| SCENIC HUDSON | POUGHKEEPSIE, NY | $200,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| ROCKEFELLER UNIVERSITY | NEW YORK, NY | $200,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| WHITNEY MUSEUM OF AMERICAN ART | NEW YORK, NY | $200,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| CENTER OF THEOLOGICAL INQUIRY | PRINCETON, NJ | $200,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| RIDGEFIELD ACADEMY | RIDGEFIELD, CT | $200,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| AMERICAN MUSEUM OF NATURAL HISTORY | NEW YORK, NY | $200,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| GEORGETOWN UNIVERSITY | WASHINGTON, DC | $200,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| FRIENDS OF FONDATION DE FRANCE | NEW YORK, NY | $200,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| HARLEM SCHOOL OF THE ARTS | NEW YORK, NY | $175,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| LOUNSBURY HOUSE | RIDGEFIELD, CT | $151,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| CITY HARVEST INC | LONG ISLAND CITY, NY | $150,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| CANDLELIGHTERS NYC INC | NEW YORK, NY | $150,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| PURSUIT | LONG ISLAND CITY, NY | $150,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| HOOVER INSTITUTION | STANFORD, CA | $150,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| PETERSON INSTITUTE FOR INTERNATIONAL ECONOMICS | WASHINGTON, DC | $150,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| ENTERTAINMENT 2 AFFECT CHANGE | LOS ANGELES, CA | $150,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| WOODSTOCK FARM ANIMAL SANCTUARY | HIGH FALLS, NY | $130,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| SKIDMORE COLLEGE | SARATOGA SPRINGS, NY | $125,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| FOOD BANK FOR NEW YORK CITY | NEW YORK, NY | $125,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| FRIENDS OF THE UNITED HATZALAH | NEW YORK, NY | $120,000 | 2026 | GENERAL TAX EXEMPT PURPOSES |
| CAF AMERICA (SEALIFE TRUST ICELAND) | ALEXANDRIA, VA | $108,333 | 2026 | GENERAL TAX EXEMPT PURPOSES |
AMERICAN ACADEMY IN BERLIN
$2,251,913GENERAL TAX EXEMPT PURPOSES
COLUMBIA BUSINESS SCHOOL
$1,750,000GENERAL TAX EXEMPT PURPOSES
RAS AI FOUNDATION
$1,500,000GENERAL TAX EXEMPT PURPOSES
AMERICAN ACADEMY IN BERLIN
$1,051,833GENERAL TAX EXEMPT PURPOSES
GENERAL TAX EXEMPT PURPOSES
NUVANCE HEALTH
$1,000,000GENERAL TAX EXEMPT PURPOSES
NEW YORK PHILLHARMONIC
$815,000GENERAL TAX EXEMPT PURPOSES
FIDELITY CHARITABLE FUND
$598,633GENERAL TAX EXEMPT PURPOSES
EAST HILL SYNAGOGUE CHESSED FUND
$500,000GENERAL TAX EXEMPT PURPOSES
GUGGENHEIM MUSEUM
$425,000GENERAL TAX EXEMPT PURPOSES
ETON COLLEGE AMERICAN FRIENDS OF ETON COLLEGE
$400,000GENERAL TAX EXEMPT PURPOSES
COLUMBIA UNIVERSITYDEPT OF OPHTHALMOLOGY
$400,000GENERAL TAX EXEMPT PURPOSES
SANDY HOOK PROMISE
$250,000GENERAL TAX EXEMPT PURPOSES
PARSONSNEW SCHOOL
$200,000GENERAL TAX EXEMPT PURPOSES
CONVENT OF THE SACRED HEART SCHOOL OF NEW YORK
$200,000GENERAL TAX EXEMPT PURPOSES
CHALKBEAT
$200,000GENERAL TAX EXEMPT PURPOSES
WHITNEY MUSEUM OF AMERICAN ART
$200,000GENERAL TAX EXEMPT PURPOSES
CENTER OF THEOLOGICAL INQUIRY
$200,000GENERAL TAX EXEMPT PURPOSES
RIDGEFIELD ACADEMY
$200,000GENERAL TAX EXEMPT PURPOSES
LOUNSBURY HOUSE
$151,000GENERAL TAX EXEMPT PURPOSES
CANDLELIGHTERS NYC INC
$150,000GENERAL TAX EXEMPT PURPOSES
HOOVER INSTITUTION
$150,000GENERAL TAX EXEMPT PURPOSES
PETERSON INSTITUTE FOR INTERNATIONAL ECONOMICS
$150,000GENERAL TAX EXEMPT PURPOSES
ENTERTAINMENT 2 AFFECT CHANGE
$150,000GENERAL TAX EXEMPT PURPOSES
CAF AMERICA (SEALIFE TRUST ICELAND)
$108,333GENERAL TAX EXEMPT PURPOSES