The Stephen and Suzanne Weiss Foundation Inc
Invitation OnlyGreenwich, Connecticut · EIN 13-3384021 · Private foundation
Grants paid (2025)$447K
Organizations funded28
Typical grant$2,000
Total assets$20K
Half of its grants to organizations were between $250 and $17,500.
From the return
How to apply
On its return for tax year 2025 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
67% of grants went outside Connecticut.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Greenwich Country Day | Greenwich, CT | General | $150,000 |
| Cornell University - President Micael Kotlikoff Discretionary Fund | Ithaca, NY | General | $50,000 |
| Weill Medical College - Cardiothoracic Surgeon Leonard Girardi | New York, NY | General | $50,000 |
| Weill Medical College - Dean Harrington Discretionary Fune | New York, NY | General | $50,000 |
| New York Presbyterian Fund - Plates for Pediatrics | New York, NY | General | $37,500 |
| Hospital for Special Surgery Foundation | New York, NY | General | $25,000 |
| Uja Federation | New York, NY | General | $20,000 |
| Breakthrough T1d | Hagerstown, MD | General | $17,500 |
| Jewish Community Relations Council of New York | New York, NY | General | $17,500 |
| Deerfield Academy | Deerfield, MA | General | $5,000 |
| Jupiter Medical Center Foundation | Jupiter, FL | General | $5,000 |
| Uja of Greenwich | Greenwich, CT | General | $5,000 |
| American Cancer Society | New York, NY | General | $3,000 |
| Edna W Runner Education Center | Jupiter, FL | General | $2,750 |
| Hillel at Cornell | Ithaca, NY | General | $2,000 |
| National Humanities Center | Research Triangle Park, NC | General | $2,000 |
| The Delta Delta Delta Foundation | Dallas, TX | General | $1,000 |
| Greenwich Center for Hope & Renewal | Greenwich, CT | General | $1,000 |
| Stanwich Congregational Church | Greenwich, CT | General | $1,000 |
| Shatterproof | Norwalk, CT | General | $500 |
| The Middle Patent Rural Cemetery Association | Banksville, NY | General | $500 |
| The Alzheimer's Association | Chicago, IL | General | $250 |
| Weill Medical College - Phyillis & Harvey Klien Md Scholarship Fund | New York, NY | General | $250 |
| Greenwich Chaplaincy Service | Greenwich, CT | General | $200 |
| The Bowery Mission | New York, NY | General | $200 |
| Bridgeport Rescue Mission | Bridgeport, CT | General | $100 |
| Greenwich Emergency Medical Services | Greenwich, CT | General | $100 |
| World Vision of Fairfield County | East Hartford, CT | General | $100 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $447,450 | 28 |
| 2024 | $115,850 | 19 |
| 2023 | $86,300 | 18 |
Sources
- IRS Form 990-PF, tax year 2025, filed May 11, 2026 - IRS e-file batch, object ID 202601319349104165
- IRS Tax Exempt Organization Search for EIN 13-3384021
- Profile updated Nov 5, 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.