Siff Charitable Foundation
Invitation OnlyWorcester, Massachusetts · EIN 04-6112346 · Private foundation
Grants paid (2025)$102K
Organizations funded33
Typical grant$500
Total assets$83K
Half of its grants to organizations were between $100 and $2,500.
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
51% of grants went outside Massachusetts.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Umass Chan Medical School Foundation | Shrewsbury, MA | General | $26,600 |
| New York University | New York, NY | General | $15,000 |
| Woodstock Film Festival | Woodstock, NY | General | $15,000 |
| Next for Autism | New York, NY | General | $12,000 |
| Alpine Learning Center | Paramus, NJ | General | $5,000 |
| Umass Memorial Foundation | Shrewsbury, MA | General | $5,000 |
| Temple Emanuel Sinai | Worcester, MA | General | $3,400 |
| Autism Project of Palm Beach County | Jupiter, FL | General | $2,500 |
| Tibetan Home of Hope | Valley Cottage, NY | General | $2,500 |
| Worcester Art Museum | Worcester, MA | General | $2,500 |
| En Guarde Arts | Brooklyn, NY | General | $2,200 |
| Watch Resources Inc | Sonora, CA | General | $2,000 |
| Jewish Health Care Center | Worcester, MA | General | $1,600 |
| Breast Cancer Research Foundation | New York, NY | General | $1,500 |
| Ecotarium | Worcester, MA | General | $1,000 |
| Florida Atlantic University | Jupiter, FL | General | $1,000 |
| Nami Palm Beach County | West Palm Beach, FL | General | $500 |
| National Jewish Health | Denver, CO | General | $500 |
| Shuva Center | New York, NY | General | $500 |
| Worcester District Medical Society | Worcester, MA | General | $500 |
| YWCA of Central Ma | Worcester, MA | General | $200 |
| William James College | Newton, MA | General | $180 |
| Temple Emanuel Men's Club | New York, NY | General | $180 |
| Nourish Nantucket | Nantucket, MA | General | $180 |
| Alzheimer's Association | Worcester, MA | General | $100 |
| Dana Farber Cancer Institute | Boston, MA | General | $100 |
| Gulf Stream Council of Boy Scouts of America Inc | Palm Beach Gardens, FL | General | $100 |
| Mental Health of America | Alexandria, VA | General | $100 |
| Saint Ann's Church | Shrewsbury, MA | General | $100 |
| American Cancer Society | Boston, MA | General | $100 |
| Central Synagogue | New York, NY | General | $100 |
| Worcester Chamber Music Society | Worcester, MA | General | $100 |
| Jacob's Pillow | Becket, MA | General | $50 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $102,390 | 33 |
| 2024 | $96,342 | 36 |
| 2023 | $68,430 | 35 |
Sources
- IRS Form 990-PF, tax year 2025, filed May 4, 2026 - IRS e-file batch, object ID 202631249349100023
- IRS Tax Exempt Organization Search for EIN 04-6112346
- 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.