Aaron and Patricia Blumberg Foundation
Invitation OnlyWilmington, Delaware · EIN 26-1865519 · Private foundation
Grants paid (2025)$432K
Organizations funded27
Typical grant$10,000
Total assets$1.5M
Half of its grants to organizations were between $5,000 and $25,000.
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
100% of grants went outside Delaware.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| African Wildlife Foundation | Washington, DC | General & Unrestricted | $50,000 |
| Greenpeace Fund Inc | Washington, DC | General & Unrestricted | $50,000 |
| Sea Shepherd Conservation Society | Alexandria, VA | General & Unrestricted | $50,000 |
| World Wildlife Fund Inc | Washington, DC | General & Unrestricted | $30,000 |
| Amnesty International of the USA Inc | New York, NY | General & Unrestricted | $25,000 |
| Medecins Sans Frontieres USA Inc | Hagerstown, MD | General & Unrestricted | $25,000 |
| The David Sheldrick Wildlife Trust USA | Laguna Hills, CA | General & Unrestricted | $25,000 |
| The Dian Fossey Gorilla Fund International | Atlanta, GA | General & Unrestricted | $25,000 |
| World Central Kitchen Incorporated | Washington, DC | General & Unrestricted | $25,000 |
| Big Life Foundation USA | Ridgefield, WA | General & Unrestricted | $15,000 |
| Center for Biological Diversity Inc | Tucson, AZ | General & Unrestricted | $10,000 |
| Endangered Species International | San Francisco, CA | General & Unrestricted | $10,000 |
| Jane Goodall Institute for Wildlife Research Educa | Washington, DC | General & Unrestricted | $10,000 |
| Ocean Conservancy Inc | Washington, DC | General & Unrestricted | $10,000 |
| Ronald Mcdonald House Charities of the Philadelphi | Philadelphia, PA | General & Unrestricted | $10,000 |
| Wildlife Conservation Network Inc | San Francisco, CA | General & Unrestricted | $10,000 |
| Friends of Southern Ocean County Animal Shelter | Manahawkin, NJ | General & Unrestricted | $7,500 |
| Delaware Riverkeeper Network | Bristol, PA | General & Unrestricted | $5,000 |
| Earthjustice | San Francisco, CA | General & Unrestricted | $5,000 |
| International Fund for Animal Welfare Inc | Yarmouth Port, MA | General & Unrestricted | $5,000 |
| Pa Animal Protective Society & SPCA Inc | Johnstown, PA | General & Unrestricted | $5,000 |
| Philadelphia Bar Foundation | Philadelphia, PA | General & Unrestricted | $5,000 |
| Union of Concerned Scientists Inc | Cambridge, MA | General & Unrestricted | $5,000 |
| Zoological Society of Philadelphia | Philadelphia, PA | General & Unrestricted | $5,000 |
| Associated Humane Societies Inc | Newark, NJ | General & Unrestricted | $3,000 |
| Marine Mammal Stranding Center | Brigantine, NJ | General & Unrestricted | $3,000 |
| Overbrook School for the Blind | Philadelphia, PA | General & Unrestricted | $3,000 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $431,500 | 27 |
| 2024 | $429,000 | 27 |
| 2023 | $266,000 | 20 |
Sources
- IRS Form 990-PF, tax year 2025, filed Apr 24, 2026 - IRS e-file batch, object ID 202641149349100524
- IRS Tax Exempt Organization Search for EIN 26-1865519
- 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.