S & L Marx Foundation Inc
Invitation OnlyWilmington, Delaware · EIN 20-0677535 · Private foundation
Half of its grants to organizations were between $2,500 and $15,000.
How to apply
On its return for tax year 2024 the foundation checked the box saying it only makes contributions to preselected charitable organizations and does not accept unsolicited requests for funds.
What it funds
Share of grant lines on the latest return, classified from the purpose each grant states.
Where it gives
100% of grants went outside Delaware.
Grants paid in tax year 2024
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Yale University | New Haven, CT | Data Science Library fund | $1,000,000 |
| Jewish Board of Family & Childrens Services Inc | New York, NY | Social Work Residency fund | $500,000 |
| Brunswick School Inc | Greenwich, CT | Horizons Summer Enrichment Program Endowment | $250,000 |
| Stanford University - Gsb | Stanford, CA | BOLD Fellows Fund for Student Support | $250,000 |
| Greenwich Academy Inc | Greenwich, CT | STEM Faculty Professional Development Fund | $200,000 |
| Hospital for Special Surgery Fund Inc | New York, NY | Musculoskeletal Research under the direction of Dr. Ugur Ayturk, PhD | $200,000 |
| Boys and Girls Club of Greenwich | Greenwich, CT | Art & STEAM Lab fund in Horseneck Lane facility | $150,000 |
| Yale University | New Haven, CT | Yale Program for the Study of Antisemitism | $125,000 |
| Yale University | New Haven, CT | Robert Blocker Scholarship Fund to provide financial aid to students within the Yale School of Music | $125,000 |
| Alzheimers Disease and Related Disorders Associati | Chicago, IL | Dementia Care Coordination Program in New England | $100,000 |
| Camphill Village U S a Inc | Copake, NY | Healing Plant Garden Workspace Building Project | $100,000 |
| Taft School Corporation | Watertown, CT | Financial Aid Endowment | $100,000 |
| Yale University | New Haven, CT | Yale Class of 1954 Endowment for the Peabody Museum | $100,000 |
| Joseph Slifka Center for Jewish Life at Yale | New Haven, CT | Yale Jewish Renewal Fund | $75,000 |
| Lets Get Ready Inc | New York, NY | CT State-Wide Coaching for College Success program | $75,000 |
| Waterside School Inc | Stamford, CT | Literacy Champions Initiative | $75,000 |
| Westchester Arc Foundation Inc | Hawthorne, NY | Grant for music, movement, and art therapy program | $75,000 |
| Yale University | New Haven, CT | Yale Emerging Climate Leaders Fellowship | $75,000 |
| Yonkers Partners in Education Inc | Yonkers, NY | Yonkers and Jersey City College Access Programs | $75,000 |
| Birthright Israel Foundation | New York, NY | Birthright Israel Fellows professional development program | $60,000 |
| Bruce Museum Inc | Greenwich, CT | new Woodshop/Exhibition Design Space fund | $50,000 |
| Fair Haven Community Health Clinic Inc | New Haven, CT | new Fair Haven Community Health Care facility fund | $50,000 |
| Marlboro School of Music Inc | Philadelphia, PA | Musicians from Marlboro Public Concert Series at Greenwich Library | $36,000 |
| Sterling & Francine Clark Art Inst | Williamstown, MA | cultural programming and educational outreach | $35,000 |
| Aurelia Foundation | Pacific Palisades, CA | Creative Steps Arts Program | $30,000 |
| Greenwich Hospital | Greenwich, CT | Healthy Living Prevention Program | $30,000 |
| Bruce Museum Inc | Greenwich, CT | cultural programming and educational outreach | $25,000 |
| Hand in Hand American Friends of Cntr for Jewish-A | Portland, OR | Growth of Hand in Hand Kfar Saba School | $25,000 |
| Metropolitan Opera Guild Inc | New York, NY | General & Unrestricted | $25,000 |
| Warren Land Trust Inc | Warren, CT | Preservation of Tanner Farm and Mountain Lake Preserve | $25,000 |
| Harlem Academy | New York, NY | Teaching partnership with Harlem School of the Arts and student scholarship fund | $20,000 |
| Boys and Girls Club of Greenwich | Greenwich, CT | Strategic and Governance Consulting | $16,000 |
| Friends of the Israel Defense Forces | New York, NY | PTSD program for active-duty soliders | $15,000 |
| Reading Team Inc | New York, NY | Expansion of literacy coaching program for Harlem students | $15,000 |
| Shakespeare on the Sound Inc | Norwalk, CT | Educational Outreach | $15,000 |
| Sharp Again Naturally Inc | White Plains, NY | Supporting Brain Health Longevity in Seniors | $15,000 |
| The Carnegie Hall Corporation | New York, NY | Music programming and outreach | $15,000 |
| Washington Institute for Near East Policy | Washington, DC | research and policy support | $15,000 |
| The Morgan Library & Museum | New York, NY | Educational programs and exhibitions | $12,500 |
| Together Achieving Dreams Foundation Inc | New York, NY | Student mentorship program | $11,500 |
| Anti-Defamation League | New York, NY | ADL programs in Connecticut | $10,000 |
| Cagv-Education Fund Inc | Ridgefield, CT | Gun Violence Prevention | $10,000 |
| Community Mindfulness Project Incorporated | Ridgefield, CT | CMP partnership with community organizations | $10,000 |
| Family Centers Inc | Greenwich, CT | childcare and literacy programs | $10,000 |
| Friends of Ofanim Inc | Philadelphia, PA | mobile education program in Israel | $10,000 |
| Greenwich Library | Greenwich, CT | general support and Peterson Business Award fund | $10,000 |
| Israel Lacrosse Association Inc | New York, NY | Israel Lacrosse Program | $10,000 |
| Lake Waramaug Task Force Inc | Warren, CT | Environmental Conservation of Lake Waramaug | $10,000 |
| Shatterproof a Nonprofit Corp | New York, NY | Shatterproof's Stigma Reduction Initiative | $10,000 |
| Squash Haven Inc | New Haven, CT | Academic and athletic enrichment programs | $10,000 |
| Temple Sholom Inc | Greenwich, CT | Charitable Event | $10,000 |
| Together Achieving Dreams Foundation Inc | New York, NY | career mentoring program for blind and low-vision students | $10,000 |
| Trinity College | Hartford, CT | Trinity College Annual Fund | $10,000 |
| Uja Federation of Greenwich | Greenwich, CT | community programs | $10,000 |
| Yale University | New Haven, CT | Cancer Research | $10,000 |
| Yale University | New Haven, CT | Peter Salovey & Marta Elisa Moret Scholarship Fund | $10,000 |
| Yale University | New Haven, CT | Yale Lacrosse Association | $10,000 |
| Stamford Center for the Arts Inc | Stamford, CT | arts programming and education outreach | $8,000 |
| Jewish Family Services of Greenwich Inc | Greenwich, CT | Shopping for Seniors and Compassionate Companions Programs | $7,500 |
| Washington Institute for Near East Policy | Washington, DC | Charitable Event | $7,500 |
Showing the 60 largest of 138 grants to organizations.
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2024 | $4,641,000 | 138 |
| 2023 | $4,694,550 | 136 |
Sources
- IRS Form 990-PF, tax year 2024, filed Sep 25, 2025 - IRS e-file batch, object ID 202532689349101013
- IRS Tax Exempt Organization Search for EIN 20-0677535
- Profile updated Nov 4, 2026
Facts on this page come from the foundation's own IRS Form 990-PF filings as published by the IRS. Grantvello does not know whether a foundation is accepting proposals right now: a past grant is not an open opportunity. Always confirm current guidelines with the funder before applying.