The foundation concentrates large, targeted gifts to elite higher-education and biomedical research institutions, with a notable interest in child development and digital media. Its grants primarily support university research programs and independent research labs, with occasional support for arts education. The foundation gives relatively few but sizable awards and sometimes makes repeat gifts to the same organization.
Highly concentrated: a small number of large grants to major research universities and labs, with repeat support for select grantees rather than many small awards.
A defining feature of Stephen Dellapietra and Pamela Hurst- Dellapietra Family Foundation Inc is its large support for research institutions and child-development work. The biggest recent grant in the file is $1,150,000 to Cold Spring Harbor Laboratory for charitable contribution, alongside $1,000,000 to Stony Brook Foundation Inc and repeated $750,000 gifts to Children and Screens the Institute of Digital Media and Child Development. That pattern points to a foundation that backs a small number of organizations with substantial, often repeated awards. Its recent grants also show a strong preference for higher-education and research settings. Princeton University received $1,000,000 in 2023 and $110,000 in 2025, while Harvard University received $260,000 in 2025. Memorial Sloan Kettering Cancer appears as another recurring recipient, and Berklee College of Music received a sizable arts-related gift. The mix suggests a funder that concentrates on university research, biomedical science, and selected education and cultural organizations rather than broad, dispersed giving.
In child development and digital media, the foundation gave $750,000 in both 2023 and 2025 to Children and Screens the Institute of Digital Media and Child Development in Jericho, indicating sustained support for that organization. Biomedical and life-sciences research is another clear theme. Cold Spring Harbor Laboratory received $1,150,000 in 2025 and $150,000 in 2023, while Memorial Sloan Kettering Cancer received $200,000 in 2025 and $83,000 in 2023. The pattern shows repeat support for research institutions over multiple years. The foundation also funds math and science education organizations. Grants include $115,000 to Simons Laufer Mathematical Sciences in Berkeley, $115,000 to Mathematical Sciences Research Institute Inc in 2023, and $35,000 to National Museum of Mathematics in New York.
Typical grants cluster around a mid-sized core, with a p25 of $10,000, a median of $50,000, and a p75 of $132,500. The recent record also shows a few very large awards above $1 million. Giving is not one-off only: several recipients reappear across years, including Children and Screens, Cold Spring Harbor Laboratory, Princeton University, Memorial Sloan Kettering Cancer, and Stony Brook Foundation Inc. The foundation is classified as a regular funder and does not fund individuals or make program-related investments.
$4.1M
$80.1M
$29.9M
$4.4M
Most grants fall between $10K and $133K, with a median of $50K.
25th Percentile
$10K
Median
$50K
75th Percentile
$133K
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Notable grantees: Children and Screens: The Institute of Digital Media and Child Development, Cold Spring Harbor Laboratory, Princeton University, Stony Brook Foundation, Inc., Berklee College of Music, Inc.
Grant recipients are entirely in the US, and 67% of grants go to organizations in the HQ state of New York. Recent gifts reach New York City, Jericho, Cold Spring Harbor, Stony Brook, Shoreham, Smithtown, Bronx, and East Setauket, showing a strong Long Island and New York City pattern. Outside New York, recipients include Princeton, New Jersey; Boston and Cambridge, Massachusetts; Berkeley, California; Wilmington, Delaware; and San Francisco, California.
The grants center on research and higher education institutions. Recent recipients include Cold Spring Harbor Laboratory, Stony Brook Foundation Inc, Princeton University, Harvard University, Memorial Sloan Kettering Cancer, and Berklee College of Music. The file also shows support for children’s digital media and child development through Children and Screens.
The foundation’s grant-size distribution is p25 $10,000, median $50,000, and p75 $132,500. The recent file also includes a small number of very large grants, including awards of $1,150,000, $1,000,000, and $750,000.
Yes. Several organizations appear more than once in the recent grants list. Examples include Children and Screens in 2023 and 2025, Cold Spring Harbor Laboratory in 2023 and 2025, Princeton University in 2023 and 2025, Memorial Sloan Kettering Cancer in 2023 and 2025, and Stony Brook Foundation Inc in 2023 and 2025.
Giving is concentrated in New York: 67% of grants go to recipients in the HQ state, and the top state by grant count is also New York. Recent New York recipients include Cold Spring Harbor, Stony Brook, Jericho, New York City, Shoreham, Smithtown, Bronx, and East Setauket.
No. The profile states that it funds individuals is False and makes program-related investments is False. The recent grants are listed as charitable contributions to organizations rather than individual awards.
2025
Source: IRS Form 990-PF, fiscal year 2025.
Most recent grants reported to the IRS.
| Recipient | Location | Amount | Year | Purpose |
|---|---|---|---|---|
| COLD SPRING HARBOR LABORATORY | COLD SPRING HARBOR, NY | $1,150,000 | 2025 | CHARITABLE CONTRIBUTION |
| STONY BROOK FOUNDATION INC | STONY BROOK, NY | $1,000,000 | 2025 | CHARITABLE CONTRIBUTION |
| CHILDREN AND SCREENS THE INSTITUTE OF DIGITAL MEDIA AND CHILD DEVELOPMENT | JERICHO, NY | $750,000 | 2025 | CHARITABLE CONTRIBUTION |
| BERKLEE COLLEGE OF MUSIC INC | BOSTON, MA | $295,000 | 2025 | CHARITABLE CONTRIBUTION |
| HARVARD UNIVERSITY | CAMBRIDGE, MA | $260,000 | 2025 | CHARITABLE CONTRIBUTION |
| MEMORIAL SLOAN KETTERING CANCER | NEW YORK, NY | $200,000 | 2025 | CHARITABLE CONTRIBUTION |
| PIVOT | BOSTON, MA | $150,000 | 2025 | CHARITABLE CONTRIBUTION |
| SIMONS LAUFER MATHEMATICAL SCIENCES | BERKELEY, CA | $115,000 | 2025 | CHARITABLE CONTRIBUTION |
| PRINCETON UNIVERSITY | PRINCETON, NJ | $110,000 | 2025 | CHARITABLE CONTRIBUTION |
| FRIENDS OF SCIENCE EAST DBA TESLA SCIENCE CENTER AT WARDENCLYFFE | SHOREHAM, NY | $25,000 | 2025 | CHARITABLE CONTRIBUTION |
| THE PUBLIC THEATER | NEW YORK, NY | $3,000 | 2025 | CHARITABLE CONTRIBUTION |
| SEREOLIPI NOMADIC EDUCATION FOUNDATION | NEW YORK, NY | $500 | 2025 | CHARITABLE CONTRIBUTION |
| PLANNED PARENTHOOD | SMITHTOWN, NY | $500 | 2025 | CHARITABLE CONTRIBUTION |
| COLD SPRING HARBOR LABORATORY | COLD SPRING HARBOR, NY | $1,150,000 | 2024 | CHARITABLE CONTRIBUTION |
| PRINCETON UNIVERSITY | PRINCETON, NJ | $1,010,000 | 2024 | CHARITABLE CONTRIBUTION |
| CHILDREN AND SCREENS THE INSTITUTE OF DIGITAL MEDIA AND CHILD DEVELOPMENT | JERICHO, NY | $760,000 | 2024 | CHARITABLE CONTRIBUTION |
| CHABAD-LUBAVITCH ON CAMPUS - PRINCETON | PRINCETON, NJ | $250,000 | 2024 | CHARITABLE CONTRIBUTION |
| CHILDREN AND SCREENS THE INSTITUTE OF DIGITAL MEDIA AND CHILD DEVELOPMENT | JERICHO, NY | $250,000 | 2024 | CHARITABLE CONTRIBUTION |
| PIVOT | BOSTON, MA | $150,000 | 2024 | CHARITABLE CONTRIBUTION |
| PIVOT | BOSTON, MA | $150,000 | 2024 | CHARITABLE CONTRIBUTION |
| MATHEMATICAL SCIENCES RESEARCH INSTITUTE INC | BERKELEY, CA | $115,000 | 2024 | CHARITABLE CONTRIBUTION |
| MATHEMATICAL SCIENCES RESEARCH INSTITUTE INC | BERKELEY, CA | $100,000 | 2024 | CHARITABLE CONTRIBUTION |
| COLD SPRING HARBOR LABORATORY | COLD SPRING HARBOR, NY | $100,000 | 2024 | CHARITABLE CONTRIBUTION |
| MEMORIAL SLOAN KETTERING CANCER | NEW YORK, NY | $83,000 | 2024 | CHARITABLE CONTRIBUTION |
| MEMORIAL SLOAN KETTERING CANCER | NEW YORK, NY | $83,000 | 2024 | CHARITABLE CONTRIBUTION |
| STONY BROOK FOUNDATION INC | STONY BROOK, NY | $50,835 | 2024 | CHARITABLE CONTRIBUTION |
| WORLD SCIENCE FOUNDATION | NEW YORK, NY | $50,000 | 2024 | CHARITABLE CONTRIBUTION |
| WORLD SCIENCE FOUNDATION | NEW YORK, NY | $50,000 | 2024 | CHARITABLE CONTRIBUTION |
| NATIONAL MUSEUM OF MATHEMATICS | NEW YORK, NY | $35,000 | 2024 | CHARITABLE CONTRIBUTION |
| TAMIL SANGAMS OF NORTH AMERICA | COPPELL, TX | $12,500 | 2024 | CHARITABLE CONTRIBUTION |
| SARASOTA MEMORIAL HEALTHCARE FOUNDATION | SARASOTA, FL | $10,000 | 2024 | CHARITABLE CONTRIBUTION |
| PRINCETON UNIVERSITY | PRINCETON, NJ | $10,000 | 2024 | CHARITABLE CONTRIBUTION |
| MCDONALD HOUSE CHARITIES NEW YORK METRO | QUEENS, NY | $10,000 | 2024 | CHARITABLE CONTRIBUTION |
| LI YOUTH DEVELOPMENT INC | EAST SETAUKET, NY | $2,700 | 2024 | CHARITABLE CONTRIBUTION |
| TVCSD | EAST SETAUKET, NY | $2,000 | 2024 | CHARITABLE CONTRIBUTION |
| STAGES ST LOUIS | CHESTERFIELD, MO | $1,500 | 2024 | CHARITABLE CONTRIBUTION |
| OHMTEC | DOYLESTOWN, PA | $500 | 2024 | CHARITABLE CONTRIBUTION |
| PRINCETON UNIVERSITY | PRINCETON, NJ | $1,000,000 | 2023 | CHARITABLE CONTRIBUTION |
| CHILDREN AND SCREENS THE INSTITUTE OF DIGITAL MEDIA AND CHILD DEVELOPMENT | JERICHO, NY | $750,000 | 2023 | CHARITABLE CONTRIBUTION |
| STONY BROOK FOUNDATION INC | STONY BROOK, NY | $162,500 | 2023 | CHARITABLE CONTRIBUTION |
| COLD SPRING HARBOR LABORATORY | COLD SPRING HARBOR, NY | $150,000 | 2023 | CHARITABLE CONTRIBUTION |
| MATHEMATICAL SCIENCES RESEARCH INSTITUTE INC | BERKELEY, CA | $115,000 | 2023 | CHARITABLE CONTRIBUTION |
| MEMORIAL SLOAN KETTERING CANCER | NEW YORK, NY | $83,000 | 2023 | CHARITABLE CONTRIBUTION |
| WORLD SCIENCE FOUNDATION | NEW YORK, NY | $50,000 | 2023 | CHARITABLE CONTRIBUTION |
| CHABAD-LUBAVITCH ON CAMPUS - PRINCETON | PRINCETON, NJ | $50,000 | 2023 | CHARITABLE CONTRIBUTION |
| NATIONAL MUSEUM OF MATHEMATICS | NEW YORK, NY | $35,000 | 2023 | CHARITABLE CONTRIBUTION |
| PLANNED PARENTHOOD | SMITHTOWN, NY | $15,000 | 2023 | CHARITABLE CONTRIBUTION |
| WILMINGTON SAVINGS FUND SOCIETY | WILMINGTON, DE | $10,000 | 2023 | CHARITABLE CONTRIBUTION |
| CENTER FOR HUMANE TECHNOLOGY | SAN FRANCISCO, CA | $10,000 | 2023 | CHARITABLE CONTRIBUTION |
| THE BRONX FOUNDATION INC | BRONX, NY | $5,000 | 2023 | CHARITABLE CONTRIBUTION |
CHILDREN AND SCREENS THE INSTITUTE OF DIGITAL MEDIA AND CHILD DEVELOPMENT
$750,000CHARITABLE CONTRIBUTION
BERKLEE COLLEGE OF MUSIC INC
$295,000CHARITABLE CONTRIBUTION
HARVARD UNIVERSITY
$260,000CHARITABLE CONTRIBUTION
MEMORIAL SLOAN KETTERING CANCER
CHARITABLE CONTRIBUTION
SIMONS LAUFER MATHEMATICAL SCIENCES
$115,000CHARITABLE CONTRIBUTION
FRIENDS OF SCIENCE EAST DBA TESLA SCIENCE CENTER AT WARDENCLYFFE
$25,000CHARITABLE CONTRIBUTION
THE PUBLIC THEATER
$3,000CHARITABLE CONTRIBUTION
PLANNED PARENTHOOD
$500CHARITABLE CONTRIBUTION
COLD SPRING HARBOR LABORATORY
$1,150,000CHARITABLE CONTRIBUTION
CHILDREN AND SCREENS THE INSTITUTE OF DIGITAL MEDIA AND CHILD DEVELOPMENT
$760,000CHARITABLE CONTRIBUTION
CHABAD-LUBAVITCH ON CAMPUS - PRINCETON
$250,000CHARITABLE CONTRIBUTION
CHILDREN AND SCREENS THE INSTITUTE OF DIGITAL MEDIA AND CHILD DEVELOPMENT
$250,000CHARITABLE CONTRIBUTION
MATHEMATICAL SCIENCES RESEARCH INSTITUTE INC
$115,000CHARITABLE CONTRIBUTION
MATHEMATICAL SCIENCES RESEARCH INSTITUTE INC
$100,000CHARITABLE CONTRIBUTION
MEMORIAL SLOAN KETTERING CANCER
$83,000CHARITABLE CONTRIBUTION
MEMORIAL SLOAN KETTERING CANCER
$83,000CHARITABLE CONTRIBUTION
TAMIL SANGAMS OF NORTH AMERICA
$12,500CHARITABLE CONTRIBUTION
MCDONALD HOUSE CHARITIES NEW YORK METRO
$10,000CHARITABLE CONTRIBUTION
LI YOUTH DEVELOPMENT INC
$2,700CHARITABLE CONTRIBUTION
TVCSD
$2,000CHARITABLE CONTRIBUTION
OHMTEC
$500CHARITABLE CONTRIBUTION
CHILDREN AND SCREENS THE INSTITUTE OF DIGITAL MEDIA AND CHILD DEVELOPMENT
$750,000CHARITABLE CONTRIBUTION
MATHEMATICAL SCIENCES RESEARCH INSTITUTE INC
$115,000CHARITABLE CONTRIBUTION
MEMORIAL SLOAN KETTERING CANCER
$83,000CHARITABLE CONTRIBUTION
CHABAD-LUBAVITCH ON CAMPUS - PRINCETON
$50,000CHARITABLE CONTRIBUTION
PLANNED PARENTHOOD
$15,000CHARITABLE CONTRIBUTION
WILMINGTON SAVINGS FUND SOCIETY
$10,000CHARITABLE CONTRIBUTION