Rathmann Family Foundation
Invitation OnlyNaples, Florida · EIN 52-1757445 · Private foundation · Website
Grants paid (2025)$2.3M
Organizations funded17
Typical grant$50,000
Total assets$39.7M
Half of its grants to organizations were between $35,000 and $100,000.
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
94% of grants went outside Florida.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| National Science and Technology Medals Foundation | Washington, DC | General operating activities | $833,000 |
| African Parks Foundation of America | New York, NY | Rhino rewild | $300,000 |
| African Parks Foundation of America | New York, NY | General operating activities | $250,000 |
| National Science and Technology Medals Foundation | Washington, DC | General operating activities | $240,000 |
| Buzzards Bay Coalition Inc | New Bedford, MA | Westport, ma | $100,000 |
| Huerta Del Valle | Ontario, CA | General operating activities | $100,000 |
| Center for Heirs Property Preservation | Charleston, SC | General operating activities | $75,000 |
| Haverford College | Haverford, PA | General operating activities | $60,000 |
| National Audubon Society Inc | Anaheim, CA | Corkscrew swamp rehabilitation | $50,000 |
| Trustees of Trinity College | Hartford, CT | Baseball | $50,000 |
| Trustees of Trinity College | Hartford, CT | Softball | $50,000 |
| Volunteers of Legal Service | New York, NY | Immigration project gen support | $50,000 |
| Gnome Inc | Fall River, MA | General operating activities | $35,000 |
| Artis - Naples Inc | Naples, FL | General operating activities | $25,000 |
| Potomac River Clinic | Washington, DC | General operating activities | $20,000 |
| New Bedford Light | New Bedford, MA | Local environmental journalism | $15,000 |
| Westport Historical Society | Westport, MA | General operating activities | $15,000 |
Grants approved for future payment
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Artis - Naples Inc | Naples, FL | General operating activities | $50,000 |
| Wesport Historical Society | Westport, MA | General operating activities | $30,000 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $2,268,000 | 19 |
| 2024 | $2,197,500 | 19 |
| 2023 | $2,037,500 | 20 |
Sources
- IRS Form 990-PF, tax year 2025, filed Sep 10, 2026 - IRS e-file batch, object ID 202622539349100427
- IRS Tax Exempt Organization Search for EIN 52-1757445
- Profile updated Nov 6, 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.