The Weinberg Family Foundation concentrates its philanthropic dollars on major Jewish communal causes, demonstrated by a single large, unrestricted gift to the United Jewish Appeal. Their giving appears focused on sustaining central Jewish federation/umbrella organizations that fund community services, overseas support, and emergency needs. The foundation favors high-impact, general-purpose support rather than many small project-restricted grants.
Highly concentrated — very few grants but large-dollar, unrestricted gifts to established Jewish communal institutions; appears to favor single high-impact contributions rather than distributed small grants.
The Peter a and Deborah L Weinberg Family Foundation’s largest recent grant went to United Jewish Appeal, a $1,050,000 general-purpose award in 2025. That single gift sets the tone for a grantmaking profile built around large unrestricted support, especially for Jewish communal institutions and umbrella organizations. The foundation also made a $500,000 general-purpose grant to Memorial Sloan Kettering Cancer Center, showing that its giving is not limited to one lane even as Jewish communal funding remains central. Across the recent grants listed, the foundation combines high-dollar support for major nonprofits with smaller general-purpose awards to schools, community institutions, and local service organizations. Recipients include Deerfield Academy, Smith College, Waterside School, American Jewish Committee, Columbia University, Central Synagogue, Friends of the High Line, and several Connecticut-based community groups. The pattern suggests a private foundation that uses flexible funding to support organizations with established roles in education, health, Jewish life, and community services. Its grants are all listed as general purpose, which points to broad operating support rather than tightly scoped project funding.
Jewish communal giving is the clearest throughline in the recent grant list. In that area, The Peter a and Deborah L Weinberg Family Foundation gave $1,050,000 to United Jewish Appeal for general purpose support and $50,000 to American Jewish Committee for general purpose support. Those awards fit a pattern of backing umbrella and advocacy organizations that serve broad communal needs. Education is another visible focus. The foundation gave $250,000 to Deerfield Academy, $225,000 to Smith College, $115,000 to Waterside School, $50,000 to Lesley University, and $25,000 to Alexander Twilight Academy, all for general purpose support. The recipient mix includes independent schools and colleges, suggesting a preference for institutions with established operations. Health and social-welfare organizations also appear in the grant list. Examples include $500,000 to Memorial Sloan Kettering Cancer Center, $25,000 to Parkinson's Wellness Foundation, and $5,000 to Abilis. The foundation also supported community-oriented organizations such as Boys & Girls Club of Greenwich and Stamford Education 4 Autism.
$2.4M
$10M
$13.9M
$2.5M
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Notable grantees: United Jewish Appeal
The recent grant distribution is top-heavy. In 2025, the foundation’s grants range from $250 to $1,050,000, with a median award of $17,500 and a 75th percentile of $50,000. That spread shows a mix of large institutional gifts and a long tail of smaller general-purpose grants. The grants listed all use general-purpose language, which indicates flexible support rather than project-specific funding. The pattern also looks heavily concentrated in one year of reporting, with the 2025 list showing both very large awards and smaller community gifts. As a private foundation, it does not fund individuals and does not make program-related investments.
All recent grants in the list went to U.S. recipients. New York, NY appears repeatedly, including United Jewish Appeal, Memorial Sloan Kettering Cancer Center, American Jewish Committee, Columbia University, Central Synagogue, Friends of the High Line, and Central Park Conservancy. Connecticut is also prominent, with Greenwich, Stamford, and Westport recipients such as Abilis, Boys & Girls Club of Greenwich, Stamford Education 4 Autism, and Social Impact Partners. Massachusetts recipients include Deerfield, Northampton, Cambridge, Jamaica Plain, and Acton.
The recent grants show support for Jewish communal organizations, education institutions, health nonprofits, and community service groups. Examples include United Jewish Appeal, Memorial Sloan Kettering Cancer Center, Deerfield Academy, Smith College, and Boys & Girls Club of Greenwich, all funded with general-purpose grants.
The listed grants are all marked general purpose. That includes the $1,050,000 award to United Jewish Appeal, the $500,000 grant to Memorial Sloan Kettering Cancer Center, and smaller gifts such as $25,000 to Central Synagogue. The pattern points to flexible operating support.
The 2025 grants range from $250 to $1,050,000. Based on the listed awards, the median grant is $17,500 and the 75th percentile is $50,000, showing a distribution with a few very large gifts and many smaller ones.
All listed recent grants went to U.S.-based recipients. New York, NY is the most frequent recipient city in the list, followed by several Connecticut and Massachusetts locations such as Greenwich, Stamford, Westport, Cambridge, Northampton, and Deerfield.
No. The foundation is marked as not funding individuals and not making program-related investments. The recent grant list consists of organizational grants only, all given as general-purpose support.
2025
Source: IRS Form 990-PF, fiscal year 2025.
Most recent grants reported to the IRS.
| Recipient | Location | Amount | Year | Purpose |
|---|---|---|---|---|
| UNITED JEWISH APPEAL | NEW YORK, NY | $1,050,000 | 2025 | GENERAL PURPOSE |
| MEMORIAL SLOAN KETTERING CANCER CENTER | NEW YORK, NY | $500,000 | 2025 | GENERAL PURPOSE |
| DEERFIELD ACADEMY | DEERFIELD, MA | $250,000 | 2025 | GENERAL PURPOSE |
| SMITH COLLEGE | NORTHAMPTON, MA | $225,000 | 2025 | GENERAL PURPOSE |
| WATERSIDE SCHOOL | STAMFORD, CT | $115,000 | 2025 | GENERAL PURPOSE |
| LESLEY UNIVERSITY | CAMBRIDGE, MA | $50,000 | 2025 | GENERAL PURPOSE |
| AMERICAN JEWISH COMMITTEE | NEW YORK, NY | $50,000 | 2025 | GENERAL PURPOSE |
| CENTRAL SYNAGOGUE | NEW YORK, NY | $25,000 | 2025 | GENERAL PURPOSE |
| COLUMBIA UNIVERSITY | NEW YORK, NY | $25,000 | 2025 | GENERAL PURPOSE |
| SOCIAL IMPACT PARTNERS | WESTPORT, CT | $25,000 | 2025 | GENERAL PURPOSE |
| ALEXANDER TWILIGHT ACADEMY | JAMAICA PLAIN, MA | $25,000 | 2025 | GENERAL PURPOSE |
| PARKINSON'S WELLNESS FOUNDATION | NEW YORK, NY | $25,000 | 2025 | GENERAL PURPOSE |
| FRIENDS OF THE HIGH LINE | NEW YORK, NY | $25,000 | 2025 | GENERAL PURPOSE |
| CENTRAL PARK CONSERVANCY | NEW YORK, NY | $10,000 | 2025 | GENERAL PURPOSE |
| HARVARD BUSINESS SCHOOL | CAMBRIDGE, MA | $10,000 | 2025 | GENERAL PURPOSE |
| THE PACKARD CENTER | BALTIMORE, MD | $5,000 | 2025 | GENERAL PURPOSE |
| FIBROLAMELLAR CANCER FOUNDATION | GREENWICH, CT | $5,000 | 2025 | GENERAL PURPOSE |
| BOYS & GIRLS CLUB OF GREENWICH | GREENWICH, CT | $5,000 | 2025 | GENERAL PURPOSE |
| ABILIS | GREENWICH, CT | $5,000 | 2025 | GENERAL PURPOSE |
| VAIL HEALTH FOUNDATION | VAIL, CO | $5,000 | 2025 | GENERAL PURPOSE |
| VAIL DANCE FESTIVAL | AVAN, CO | $3,500 | 2025 | GENERAL PURPOSE |
| ACCESSPORTAMERICA | ACTON, MA | $3,000 | 2025 | GENERAL PURPOSE |
| COFFEE FOR GOOD | GREENWICH, CT | $2,500 | 2025 | GENERAL PURPOSE |
| STAMFORD EDUCATION 4 AUTISM | STAMFORD, CT | $250 | 2025 | GENERAL PURPOSE |
| Columbia University | New York, NY | $4,641,586 | 2024 | General Purpose |
| UNITED JEWISH APPEAL | NEW YORK, NY | $1,005,231 | 2024 | General Purpose |
| Smith College | Northampton, MA | $700,000 | 2024 | General Purpose |
| Memorial Sloan Kettering Cancer Center | New York, NY | $500,000 | 2024 | General Purpose |
| Waterside School | Stamford, CT | $150,000 | 2024 | General Purpose |
| American Jewish Committee | Philadelphia, PA | $125,000 | 2024 | General Purpose |
| Columbia University | New York, NY | $82,250 | 2024 | General Purpose |
| The Teak Fellowship Inc | New York, NY | $50,000 | 2024 | General Purpose |
| Central Synagogue | New York, NY | $25,000 | 2024 | General Purpose |
| Alexander Twilight Academy Inc | Boston, MA | $25,000 | 2024 | General Purpose |
| Central Park Conservancy | New York, NY | $15,000 | 2024 | General Purpose |
| Cerelbral Palsy Alliance Research Foundation | New York, NY | $15,000 | 2024 | General Purpose |
| Inter-City Scholarship Fund | New York, NY | $10,000 | 2024 | General Purpose |
| University of Michigan Marching Band | Ann Arbor, MI | $10,000 | 2024 | General Purpose |
| Baby2BAby | Los Angeles, CA | $10,000 | 2024 | General Purpose |
| Family Centers | Greenwich, CT | $10,000 | 2024 | General Purpose |
| Figure Skating in Harlem | New York, NY | $7,000 | 2024 | General Purpose |
| Film at Lincoln Center | New York, NY | $5,000 | 2024 | General Purpose |
| The BRCC Fund | Salt Lake City, UT | $3,000 | 2024 | General Purpose |
| SET UP TUTORING | Los Angeles, CA | $2,500 | 2024 | General Purpose |
| The Deborah Project | Merion Station, PA | $2,500 | 2024 | General Purpose |
| Boys and Girls Club of Gr | Greenwich, CT | $2,500 | 2024 | General Purpose |
| Pan Mass Challenge | Needham, MA | $500 | 2024 | General Purpose |
| Smith College | Northampton, MA | $750,000 | 2023 | General Purpose |
| Memorial Sloan Kettering Cancer Center | New York, NY | $550,000 | 2023 | 2022 Annual Board Gift |
| UJA Federation of New York | New York, NY | $130,000 | 2023 | In Honor of Bruce Mendelsohn and Curtis Lane |
MEMORIAL SLOAN KETTERING CANCER CENTER
$500,000GENERAL PURPOSE
SMITH COLLEGE
$225,000GENERAL PURPOSE
LESLEY UNIVERSITY
GENERAL PURPOSE
CENTRAL SYNAGOGUE
$25,000GENERAL PURPOSE
COLUMBIA UNIVERSITY
$25,000GENERAL PURPOSE
PARKINSON'S WELLNESS FOUNDATION
$25,000GENERAL PURPOSE
HARVARD BUSINESS SCHOOL
$10,000GENERAL PURPOSE
THE PACKARD CENTER
$5,000GENERAL PURPOSE
ACCESSPORTAMERICA
$3,000GENERAL PURPOSE
COFFEE FOR GOOD
$2,500GENERAL PURPOSE
STAMFORD EDUCATION 4 AUTISM
$250GENERAL PURPOSE
Memorial Sloan Kettering Cancer Center
$500,000General Purpose
Central Synagogue
$25,000General Purpose
University of Michigan Marching Band
$10,000General Purpose
Film at Lincoln Center
$5,000General Purpose
The BRCC Fund
$3,000General Purpose
SET UP TUTORING
$2,500General Purpose
The Deborah Project
$2,500General Purpose
Boys and Girls Club of Gr
$2,500General Purpose
Smith College
$750,000General Purpose
Memorial Sloan Kettering Cancer Center
$550,0002022 Annual Board Gift