The Middendorf Family Foundation
Invitation OnlyNew York, New York · EIN 23-3069847 · Private foundation
Grants paid (2025)$1.3M
Organizations funded12
Typical grant$75,000
Total assets$20.9M
Half of its grants to organizations were between $50,000 and $125,000.
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
91% of grants went outside New York.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Missionary Society Salesian Sisters | Tampa, FL | General charitable purposes | $325,000 |
| Our Lady of Mississippi Valley | Fort Meyers, FL | General charitable purposes | $150,000 |
| Fish of Sanibel | Sanibel, FL | General charitable purposes | $125,000 |
| Sanibel Captiva Conservation Foundation | Sanibel, FL | General charitable purposes | $125,000 |
| Katie's House Inc | Newton, NY | General charitable purposes | $125,000 |
| Community Housing and Resources Inc | Sanibel, FL | General operating | $100,000 |
| University of Cincinatti Athletics | Cincinatti, OH | General charitable purposes | $75,000 |
| Ding Darling Wildlife Society | Sanibel, FL | General charitable purposes | $75,000 |
| Sanibel Community Association | Sanibel, FL | General charitable purposes | $75,000 |
| United Way of Lee County | Fort Meyers, FL | General charitable purposes | $50,000 |
| Clinic for Rehab of Wildlife | Sanibel, FL | General charitable purposes | $25,000 |
| Mayo Clinic | Rochester, MN | General charitable purposes | $20,000 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $1,270,000 | 12 |
| 2024 | $975,000 | 13 |
| 2023 | $825,000 | 12 |
Sources
- IRS Form 990-PF, tax year 2025, filed May 11, 2026 - IRS e-file batch, object ID 202621319349104482
- IRS Tax Exempt Organization Search for EIN 23-3069847
- 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.