Funding search · EIN 136160772 · New York, NY
William P & Gertrude Schweitzer
A private foundation (files IRS Form 990-PF). Most private foundations do not take unsolicited applications; the route in is usually a program officer.
- 41
- grants reported
- $670,000
- total given
- 2022–2025
- filing years
- $6,000
- 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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1 grant matching “orinthology” · $1,000
- $1,000
Cornell Lab Or Orinthology · Ithaca, NY · 2025
Charitable grant
Top recipients
Repeat recipients are the strongest signal of whether a funder has an open door or quietly re-funds the same organizations.
- Carnegie Hall Society4 grants · $120,000
- American Museum of Natural History2 grants · $100,000
- Museum of Natural History1 grant · $70,000
- Danny and Ron Rescue1 grant · $56,649
- Theseeing Eye1 grant · $50,000
- Danny and Ron'S Rescue2 grants · $47,500
- Amer Comm for Weitzman Inst of Scie2 grants · $45,000
- Amer Museum of Nat History1 grant · $34,651
- Metropolitan Museum of Art1 grant · $30,000
- Metro Museum of Art2 grants · $21,500
Giving over time
Grant history
All 41 reported grants, largest first.
- $70,000
Museum of Natural History · New York, NY · 2025
Charitable grant
- $56,649
Danny and Ron Rescue · Camden, SC · 2024
Charitable grant
- $50,000
American Museum of Natural History · New York, NY · 2023
Charitable grant
- $50,000
Theseeing Eye · Morristown, NJ · 2023
Charitable grant
- $50,000
American Museum of Natural History · New York, NY · 2022
Charitable grant
- $40,000
Danny and Ron'S Rescue · Camden, SC · 2022
Charitable grant
- $34,651
Amer Museum of Nat History · New York, NY · 2024
Charitable grant
- $30,000
Carnegie Hall Society · New York, NY · 2025
Charitable grant
- $30,000
Metropolitan Museum of Art · New York, NY · 2025
Charitable grant
- $30,000
Carnegie Hall Society · New York, NY · 2024
Charitable grant
- $30,000
Carnegie Hall Society · New Yor, NY · 2023
Charitable grant
- $30,000
Carnegie Hall Society · New Yor, NY · 2022
Charitable grant
- $25,000
Amer Comm for Weitzman Inst of Scie · New York, NY · 2022
Charitable grant
- $20,000
Amer Comm for Weitzman Ins of Scien · New York, NY · 2024
Charitable grant
- $20,000
Amer Comm for Weitzman Inst of Scie · New York, NY · 2023
Charitable grant
- $11,500
Metro Museum of Art · New York, NY · 2023
Charitable grant
- $10,000
The Raptor Trust · Madison, NJ · 2025
Charitable grant
- $10,000
Metro Museum of Art · New York, NY · 2022
Charitable grant
- $7,500
Danny and Ron'S Rescue · Camden, SC · 2023
Charitable grant
- $6,290
Dannys and Dons Rescue · Camden, SC · 2025
Charitable grant
- $6,000
The Seeing Eye · Morristown, NJ · 2024
Charitable grant
- $5,000
Friends of Whittemore · Oldwick, NJ · 2025
Charitable grant
- $5,000
Trail Blaxers Foundation · Portland, OR · 2023
Charitable
- $5,000
New Jersey Conservation Foundation · Far Hills, NJ · 2022
Charitable grant
- $5,000
The Raptor Trust · Millington, NJ · 2022
Charitable grant
- $3,000
Harleys Dream · Berthoud, CO · 2025
Charitable grant
- $3,000
Harleys Dream · Berthoud, CO · 2023
Charitable grant
- $3,000
Harleys Dream · Berthoud, CO · 2022
Charitable grant
- $3,000
St Huberts Animal Welfare Center · Madison, NJ · 2022
Charitable grant
- $2,700
Nj Conservation Foundation · Far Hills, NJ · 2024
Charitable grant
- $2,210
St Huberts Animal Welfare Center · Madison, NJ · 2025
Charitable grant
- $2,000
St Huberts Animal Welfare Center · Madison, NJ · 2023
Charitable grant
- $2,000
Best Friends Animal Society · Kanab, UT · 2022
Charitable grant
- $2,000
Hackensack River Keeper · Hackensack, NJ · 2022
Charitable grant
- $2,000
North Shore Animal League · Port Washington, NY · 2022
Charitable grant
- $2,000
Wildlife Conservation · Bronx, NY · 2022
Charitable grant
- $1,500
Nj Conservation Foundation · Far Hills, NJ · 2025
Charitable grant
- $1,000
Cornell Lab Or Orinthology · Ithaca, NY · 2025
Charitable grant
- $1,000
Shakespeare Theatre of Nj · Florham Park, NJ · 2025
Charitable grant
- $1,000
Best Friends Animal Society · Kanab, UT · 2023
Charitable grant
- $1,000
Mane Stream · Oldwick, NJ · 2022
Charitable grant
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Similar grant size
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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.

