MJS Foundation Inc
Preselected recipients only
MJS Foundation Inc is a private foundation in New York, New York. In tax year 2025 it gave $18.0 million in 58 grants; the typical grant was $102,500 and the largest $5.0 million. It only gives to organizations it selects itself and does not accept unsolicited applications.
From its IRS Form 990-PF for tax year 2025.
- Grants paid, 2025$18.0 million
- Number of grants58
- Typical grant$102,500
- Largest grant$5.0 million
- Assets$48.0 million
- New grantees17%
Giving in 2025 was down from $20.3 million the year before.
17% of its 2025 grantees had not received a grant from it the year before, a mix of repeat and new grantees.
Giving by year
| Tax year | Grants paid | Number of grants | Assets |
|---|---|---|---|
| 2023 | $24.1 million | 72 | $29.5 million |
| 2024 | $20.3 million | 66 | $73.9 million |
| 2025 | $18.0 million | 58 | $48.0 million |
How to apply
MJS Foundation Inc says in its IRS filing that it only makes contributions to preselected organizations, so unsolicited applications are unlikely to be considered. Organizations it funds are usually invited.
Foundation website IRS filings on ProPublica
What MJS Foundation Inc funds
Where it gives
Its US grants went to recipients in 6 states, the most to New York. It also paid $10,000 in 1 grant to recipients outside the US.
| State | Grants | Amount |
|---|---|---|
| New York | 49 | $17.7 million |
| Massachusetts | 2 | $3.6 million |
| California | 3 | $1.2 million |
| Florida | 1 | $100,000 |
| District of Columbia | 1 | $50,000 |
| New Jersey | 1 | $12,500 |
Grants paid in 2025
| Recipient | Purpose | Amount |
|---|---|---|
| Robin Hood Foundation | General operating support for rhf's grantmaking programs | $5.0 million |
| Fidelity Investments Charitable Gift Fund | Gift to a donor-advised fund to help mjs administer smaller gifts to charities | $3.5 million |
| Icahn School of Medicine at Mount Sinai | Pledged gift to support the tisch cancer hospital and lung cancer center of excellence | $2.0 million |
| Felicity House Inc | Gift to support community space devoted to women with autism | $1.0 million |
| Icahn School of Medicine at Mount Sinai | Gift to support the dr. Martin feuer pulmonary educational fund | $1.0 million |
| Park Avenue Synagogue | Gift in honor of jim simons yahrzeit | $1.0 million |
| The Center for Discovery | Pledged gift to support the endowment campaign | $1.0 million |
| Stony Brook Foundation | Gift to support the mjs challenge | $933,710 |
| University of California Berkeley Foundation | Gift to support the climatenginuity hub pilot program | $700,000 |
| New York Public Library | Gift to support the annual fund | $500,000 |
| Partnership Schools | Pledged gift for general operating support | $500,000 |
| Stony Brook Foundation | Pledged gift to support the walter j. Hawrys recreational center | $333,333 |
| Research Foundation for Mental Hygiene at Nyspi | Pledged gift to support the whitaker fellowship at the nys psychiatric institute | $318,014 |
| Columbia University Medical Center | Gift to support the whitaker scholar program in developmental neuropsychiatry | $317,356 |
| University of California Berkeley Foundation | Gift to support the chancellor's impact fund | $300,000 |
| Pace University | Gift to support the community impact internship program | $275,000 |
| Marlene Meyerson JCC Manhattan | Gift to support cancer care at the jcc in honor of dr. Alison estabrook | $260,000 |
| Breast Cancer Research Foundation | Pledged gift to support the myra j. Biblowit fund for breast cancer research | $250,000 |
| East Harlem Tutorial Program | Gift to support the major donors campaign | $250,000 |
| East Harlem Tutorial Program | Gift to support annual fund/annual friends appeal | $250,000 |
| Everytown for Gun Safety Support Fund Inc | General operating support iho michael bloomberg | $250,000 |
| Learningspring School | General operating support | $250,000 |
| Milken Institute | Gift to support the philanthropic investors forum | $250,000 |
| Last Whispers | Gift to support the project - reversal/ode to joy (part 3) | $220,830 |
| All Star Code | Pledged gift to support the mission of the organization | $150,000 |
| Hunter College Foundation | Gift to support the lewis burke frumkes center for writing and culture | $150,000 |
| North Shore Child & Family Guidance Center | Gift in memory of marie rautenberg | $150,000 |
| Pivot Works Inc | Gift to support pivot's work in madagascar in honor of jim and robin herrnstein | $150,000 |
| East Harlem Tutorial Program | Gift to support the annual benefit gala | $105,000 |
| American Museum of Natural History | Gift to support the mission of the organization | $100,000 |
| Bard Prison Initiative | Pledged gift for the bard prison initiative's college education program | $100,000 |
| Children & Screens Institute of Digital Media and Child Development | Pledged gift to support the mission of the organization | $100,000 |
| Menorah Foundation Inc | Gift to support the mission of the foundation | $100,000 |
| National September 11 Memorial and Museum at the World Trade Center | Gift to support the never forget fund | $100,000 |
| Quad Preparatory School | Pledged gift to support the evergreen fund | $100,000 |
| Rensselaer Polytechnic Institute | General operating support | $100,000 |
| Changing Times Tap | Pledged gift to help further the organizations mission to preserve and create new tap dancing | $60,000 |
| NYC Health Hospitals | Gift in honor of dr. Alison estabrook for the bellevue & kings county cancer centers | $60,000 |
| National Museum of Mathematics | Gift to support the momath masters (october) | $50,021 |
| National Museum of Mathematics | Gift to support the momath masters (february) | $50,021 |
Officers and trustees
- Marilyn Simons
- Joseph Cosmai
- Jeffrey Wacksman
- Susan E Gibbons
Questions people ask
Does MJS Foundation Inc accept grant applications?
No. Its IRS filing says it only makes contributions to preselected organizations.
How much does MJS Foundation Inc give?
$18.0 million in tax year 2025, across 58 grants, with a typical grant of $102,500.
Who runs MJS Foundation Inc?
Its 2025 filing lists Marilyn Simons (President & Board Chair), Joseph Cosmai (Treasurer & Secretary/Director), Jeffrey Wacksman (Director) and Susan E Gibbons (Director).
What does MJS Foundation Inc fund?
Based on its grants, mainly education, health and faith communities.