Funding search · EIN 300883477 · New York, NY
Tianaderrah Foundation (De)
A private foundation (files IRS Form 990-PF). Most private foundations do not take unsolicited applications; the route in is usually a program officer.
- 45
- grants reported
- $4.0M
- total given
- 2022–2024
- filing years
- $80,000
- median grant
Based on grants this organization reported to the IRS for tax years 2022–2024. This is what they filed, not a complete record of their giving, and recent years may be incomplete because filings lag.
What they fund
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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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3 grants matching “mansion” · $310,000
- $105,000
Sonnenberg Gardens & Mansion State Historic Park · Canandaigua, NY · 2024
General Fund & Scholarships
- $50,000
Sonnenberg Gardens & Mansion State Historic Park · Canandaigua, NY · 2023
General Fund & Scholarships
- $155,000
Sonnenberg Gardens & Mansion State Historic Park · Canandaigua, NY · 2022
General Fund & Scholarships
Top recipients
Repeat recipients are the strongest signal of whether a funder has an open door or quietly re-funds the same organizations.
- Sofia America Schools3 grants · $725,000
- American Foundation for Bulgaria3 grants · $685,000
- World Monuments Fund3 grants · $375,000
- Sonnenberg Gardens & Mansion State Historic Park3 grants · $310,000
- Bulgarian American Society3 grants · $300,000
- Metropolitan Museum of Art3 grants · $300,000
- American University in Bulgaria3 grants · $290,000
- New York University3 grants · $280,000
- Princeton University3 grants · $170,000
- Children of Armenia Fund3 grants · $120,000
Giving over time
Grant history
All 45 reported grants, largest first.
- $275,000
American Foundation for Bulgaria · Boston, MA · 2023
General funds
- $250,000
Sofia America Schools · Princeton, NJ · 2024
General funds & scholarships
- $250,000
Sofia America Schools · Princeton, NJ · 2023
General funds & scholarships
- $225,000
Sofia America Schools · Princeton, NJ · 2022
General funds & scholarships
- $210,000
American Foundation for Bulgaria · Boston, MA · 2022
General funds
- $200,000
American Foundation for Bulgaria · Boston, MA · 2024
General funds
- $155,000
Sonnenberg Gardens & Mansion State Historic Park · Canandaigua, NY · 2022
General Fund & Scholarships
- $130,000
New York University · New York, NY · 2022
General funds and Scholarship
- $125,000
American University in Bulgaria · Washington, DC · 2024
General funds
- $125,000
World Monuments Fund · New York, NY · 2024
General funds
- $125,000
World Monuments Fund · New York, NY · 2023
General funds
- $125,000
World Monuments Fund · New York, NY · 2022
General funds
- $105,000
Sonnenberg Gardens & Mansion State Historic Park · Canandaigua, NY · 2024
General Fund & Scholarships
- $100,000
Bulgarian American Society · Arlington, VA · 2024
General funds
- $100,000
Metropolitan Museum of Art · New York, NY · 2024
General funds
- $100,000
Montgomery County Historical Society · Fort Johnson, NY · 2024
General funds
- $100,000
Northfield Mount Hermon · Mount Hermon, MA · 2024
General funds
- $100,000
American University in Bulgaria · Washington, DC · 2023
General funds
- $100,000
Bulgarian American Society · Arlington, VA · 2023
General funds
- $100,000
Metropolitan Museum of Art · New York, NY · 2023
General funds
- $100,000
Bulgarian American Society · Arlington, VA · 2022
General funds
- $100,000
Metropolitan Museum of Art · New York, NY · 2022
General funds
- $80,000
New York University · New York, NY · 2023
General funds and Scholarship
- $70,000
New York University · New York, NY · 2024
General funds and Scholarship
- $65,000
American University in Bulgaria · Washington, DC · 2022
General funds
- $60,000
Princeton University · Princeton, NJ · 2024
General funds & scholarships
- $55,000
Princeton University · Princeton, NJ · 2023
General funds & scholarships
- $55,000
Princeton University · Princeton, NJ · 2022
General funds & scholarships
- $50,000
Sonnenberg Gardens & Mansion State Historic Park · Canandaigua, NY · 2023
General Fund & Scholarships
- $45,000
Children of Armenia Fund · New York, NY · 2023
General funds
- $40,000
Children of Armenia Fund · New York, NY · 2024
General funds
- $35,000
Guilford Historical Society · Guilford, NY · 2024
General funds
- $35,000
Children of Armenia Fund · New York, NY · 2022
General funds
- $30,000
International Humanitarian Missions · Westminster, CA · 2024
General funds
- $25,000
Weill Cornell Medicine · New York, NY · 2024
Scholarships
- $25,000
Weill Cornell Medicine · New York, NY · 2023
Scholarships
- $25,000
Weill Cornell Medicine · New York, NY · 2022
Scholarships
- $20,000
Next Generation Bulgaria Fund · Bronxville, NY · 2024
General funds
- $20,000
International Humanitarian Missions · Westminster, CA · 2023
General funds
- $15,000
Next Generation Bulgaria Fund · Bronxville, NY · 2023
General funds
- $15,000
Next Generation Bulgaria Fund · Bronxville, NY · 2022
General funds
- $10,000
American Friends of Georgia · Truro, MA · 2024
General funds
- $10,000
American Friends of Georgia · Truro, MA · 2023
General funds
- $10,000
American Friends of Georgia · Truro, MA · 2022
General funds
- $5,000
The Boston Foundation · Boston, MA · 2024
General funds
Who else funds this kind of work
Same state
- The Bloomberg Family Foundation815 grants · $3.00B
- Pfizer Patient Assistance Foundation134 grants · $5.49B
- Gs Donor Advised Philanthropy Fund19,135 grants · $6.79B
Similar purposes
- The Goldman Sachs Charitable Gift Fund9,951 grants · $854.8M
- National Collegiate Athletic Association2,481 grants · $2.09B
- The Susan Thompson Buffett Foundation1,530 grants · $3.56B
Similar grant size
- The Ford Foundation10,731 grants · $2.35B
- Silicon Valley Community Foundation10,471 grants · $10.10B
- Tides Foundation9,402 grants · $1.86B
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.

