Funding search · EIN 233069847 · New York, NY
The Middendorf Family Foundation
A private foundation (files IRS Form 990-PF). Most private foundations do not take unsolicited applications; the route in is usually a program officer.
- 50
- grants reported
- $3.6M
- total given
- 2022–2025
- filing years
- $50,000
- median grant
Based on grants this organization reported to the IRS for tax years 2022–2025. This is what they filed, not a complete record of their giving, and recent years may be incomplete because filings lag.
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Funding pattern
What this funder pays for, at what size, and how to position adjacent work. Read from their filings, with every number checked against the record.
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4 grants matching “darling” · $235,000
- $75,000
Ding Darling Wildlife Society · Sanibel, FL · 2025
General charitable purposes
- $50,000
Ding Darling Wildlife Society · Sanibel, FL · 2024
General charitable purposes
- $85,000
Ding Darling Wildlife Society · Sanibel, FL · 2023
General charitable purposes
- $25,000
Ding Darling Wildlife Society · Sanibel, FL · 2022
General charitable purposes
Top recipients
Repeat recipients are the strongest signal of whether a funder has an open door or quietly re-funds the same organizations.
- Missionary Society Salesian Sisters4 grants · $995,000
- Fish of Sanibel4 grants · $425,000
- Our Lady of Mississippi Valley3 grants · $375,000
- Sanibel Captiva Conservation Foundation4 grants · $250,000
- Ding Darling Wildlife Society4 grants · $235,000
- Katie'S House3 grants · $225,000
- Sanibel Community Association4 grants · $210,000
- University of Cincinatti Athletics3 grants · $150,000
- Clinic for Rehab of Wildlife4 grants · $150,000
- Community Housing and Resources1 grant · $100,000
Giving over time
Grant history
All 50 reported grants, largest first.
- $325,000
Missionary Society Salesian Sisters · Tampa, FL · 2025
General charitable purposes
- $280,000
Missionary Society Salesian Sisters · Tampa, FL · 2024
General charitable purposes
- $210,000
Missionary Society Salesian Sisters · Tampa, FL · 2022
General charitable purposes
- $180,000
Missionary Society Salesian Sisters · North Haledon, NJ · 2023
General charitable purposes
- $150,000
Our Lady of Mississippi Valley · Fort Meyers, FL · 2025
General charitable purposes
- $150,000
Fish of Sanibel · Sanibel, FL · 2024
General charitable purposes
- $150,000
Our Lady of Mississippi Valley · Fort Meyers, FL · 2024
General charitable purposes
- $125,000
Fish of Sanibel · Sanibel, FL · 2025
General charitable purposes
- $125,000
Katie'S House · Newton, NY · 2025
General charitable purposes
- $125,000
Sanibel Captiva Conservation Foundation · Sanibel, FL · 2025
General charitable purposes
- $100,000
Community Housing and Resources · Sanibel, FL · 2025
General operating
- $100,000
Fish of Sanibel · Sanibel, FL · 2023
General charitable purposes
- $100,000
Katies House Incorporated · Newton, NJ · 2023
General charitable purposes
- $100,000
Our Lady of the Mississippi Abbey · Dubuque, IA · 2023
General charitable purposes
- $85,000
Ding Darling Wildlife Society · Sanibel, FL · 2023
General charitable purposes
- $75,000
Ding Darling Wildlife Society · Sanibel, FL · 2025
General charitable purposes
- $75,000
Sanibel Community Association · Sanibel, FL · 2025
General charitable purposes
- $75,000
University of Cincinatti Athletics · Cincinatti, OH · 2025
General charitable purposes
- $75,000
Katie'S House · Newton, NY · 2024
General charitable purposes
- $75,000
Our Lady of Mississippi Valley · Fort Meyers, FL · 2022
General charitable purposes
- $50,000
United Way of Lee County · Fort Meyers, FL · 2025
General charitable purposes
- $50,000
Clinic for Rehab of Wildlife · Sanibel, FL · 2024
General charitable purposes
- $50,000
Ding Darling Wildlife Society · Sanibel, FL · 2024
General charitable purposes
- $50,000
Sanibel Captiva Conservation Foundation · Sanibel, FL · 2024
General charitable purposes
- $50,000
Sanibel Community Association · Sanibel, FL · 2024
General charitable purposes
- $50,000
University of Cincinatti Athletics · Cincinatti, OH · 2024
General charitable purposes
- $50,000
Clinic for Rehab of Wildlife · Sanibel, FL · 2023
General charitable purposes
- $50,000
Fish of Sanibel-Captiva · Sanibel, FL · 2023
General charitable purposes
- $50,000
Sanibel Captiva Conservation Foundation · Sanibel, FL · 2023
General charitable purposes
- $50,000
Sanibel Community Association · Sanibel, FL · 2023
General charitable purposes
- $50,000
Fish of Sanibel · Sanibel, FL · 2022
General charitable purposes
- $35,000
Sanibel Community Association · Sanibel, FL · 2022
General charitable purposes
- $25,000
Clinic for Rehab of Wildlife · Sanibel, FL · 2025
General charitable purposes
- $25,000
Sanibel Sea School · Sanibel, FL · 2024
General operating
- $25,000
United Way of Lee County · Fort Meyers, FL · 2024
General charitable purposes
- $25,000
United Way Worldwide · Alexandria, VA · 2023
General operating
- $25,000
University of Cincinnati Foundation · Cincinnati, OH · 2023
General charitable purposes
- $25,000
Clinic for Rehab of Wildlife · Sanibel, FL · 2022
General charitable purposes
- $25,000
Ding Darling Wildlife Society · Sanibel, FL · 2022
General charitable purposes
- $25,000
Katie'S House · Newton, NY · 2022
General charitable purposes
- $25,000
Sanibel Captiva Conservation Foundation · Sanibel, FL · 2022
General charitable purposes
- $25,000
Sanibel Sea School · Sanibel, FL · 2022
General operating
- $25,000
United Way of Lee County · Fort Meyers, FL · 2022
General charitable purposes
- $25,000
University of Cincinatti Athletics · Cincinatti, OH · 2022
General charitable purposes
- $20,000
Mayo Clinic · Rochester, MN · 2025
General charitable purposes
- $15,000
Charlotte Latin School · Charlotte, NC · 2022
General charitable purposes
- $10,000
Charlotte Latin School · Charlotte, NC · 2024
General charitable purposes
- $10,000
Mayo Clinic · Rochester, MN · 2024
General charitable purposes
- $10,000
Mayo Clinic · Rochester, MN · 2023
General charitable purposes
- $10,000
Mayo Clinic · Rochester, MN · 2022
General charitable purposes
Who else funds this kind of work
Same state
- The Bloomberg Family Foundation815 grants · $3.00B
- Pfizer Patient Assistance Foundation134 grants · $5.49B
Similar grant size
- Ohio Child Care Resource and Referral16,278 grants · $1.08B
- Gs Donor Advised Philanthropy Fund19,135 grants · $6.79B
- The Chicago Community Trust14,939 grants · $5.82B
Grants already paid are the record; PaperOrbit reads your paper and finds the funders whose record matches it — then explains why.
Search funders like this oneSource: IRS Form 990-PF, Part XV, as filed by the foundation. These are grants already paid — a record of what this funder backs, not an open call.

