Funding search · EIN 133917776 · Hobe Sound, FL

Donald Grant & Ann Martin Calder Foundat

Name: Donald Grant & Ann Martin Calder Foundat grants, 2022–2025
Creator: PaperOrbit
License: https://www.irs.gov/charities-non-profits/exempt-organization-public-disclosure-and-availability-requirements

A private foundation (files IRS Form 990-PF). Most private foundations do not take unsolicited applications; the route in is usually a program officer.

102
grants reported: $1.3M
total given: 2022–2025
filing years: $2,000
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.

What they fund

conservation economics school stockholm

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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.

Top recipients

Repeat recipients are the strongest signal of whether a funder has an open door or quietly re-funds the same organizations.

King Baudouin Foundation USA2 grants · $217,000
National Sporting Library4 grants · $181,000
Atlantic Salmon Foundation3 grants · $141,000
Christ Memorial Chapel3 grants · $125,600
Myriad USA1 grant · $94,000
Everglades Foundation2 grants · $76,000
Game Conservancy3 grants · $53,000
Southampton Hospital Foundation2 grants · $40,000
The Garden Conservancy2 grants · $35,000
Hobe Sound Community Chest2 grants · $30,000

Giving over time

$331,100

2022

$491,285

2023

$344,400

2024

$91,700

2025

Grant history

The 100 largest of 102 grants.

$112,000
King Baudouin Foundation USA · New York, NY · 2022
General support
$105,000
King Baudouin Foundation USA · New York, NY · 2023
General support
$100,000
Atlantic Salmon Foundation · Calais, ME · 2023
Conservation funds
$94,000
Myriad USA · New York, NY · 2024
General support
$78,000
National Sporting Library · Middleburg, VA · 2023
General support
$78,000
National Sporting Library · Middleburg, VA · 2022
General support
$50,600
Christ Memorial Chapel · Hobe Sound, FL · 2024
General support
$50,000
Everglades Foundation · Palmetto Bay, FL · 2024
General purpose
$50,000
Christ Memorial Chapel · Hobe Sound, FL · 2023
General support
$36,000
Atlantic Salmon Foundation · Calais, ME · 2025
General support
$30,000
Southampton Hospital Foundation · Southampton, NY · 2023
General support
$26,000
Everglades Foundation · Palmetto Bay, FL · 2022
General purpose
$25,000
Rush University System for Health · Chicago, IL · 2025
General support
$25,000
The Garden Conservancy · Garrison, NY · 2023
General support
$25,000
Christ Memorial Chapel · Hobe Sound, FL · 2022
General support
$25,000
Mayo Clinic · Jacksonville, FL · 2022
General support
$21,000
Game Conservancy · Greenwich, CT · 2023
General support
$20,000
Game Conservancy · Greenwich, CT · 2024
General support
$20,000
Hobe Sound Community Chest · Hobe Sound, FL · 2024
General support
$15,000
National Sporting Library · Middleburg, VA · 2025
General support
$12,000
St John'S Espiscopal Church · Southampton, NY · 2023
General support
$12,000
Game Conservancy · Greenwich, CT · 2022
General support
$10,185
Princeton University · Princeton, NJ · 2023
General support
$10,100
St Andrew'S Dune Church · Southampton, NY · 2024
General support
$10,000
Banner Lake Club · Hobe Sound, FL · 2024
General support
$10,000
Hospital for Special Surgery Foundation · New York, NY · 2024
General support
$10,000
National Sporting Library · Middleburg, VA · 2024
General support
$10,000
Southampton Hospital Foundation · Southampton, NY · 2024
General support
$10,000
The Garden Conservancy · Garrison, NY · 2024
General support
$10,000
Aloha Foundation · Fairlee, VT · 2023
General support
$10,000
Navy Seal Foundation · Virginia Beach, VA · 2023
General support
$10,000
Veterinary Initiative for Endangered Wildlife · Bozeman, MT · 2023
General support
$10,000
Boys and Girls Club of Martin County · Hobe Sound, FL · 2022
General support
$10,000
Hobe Sound Community Chest · Hobe Sound, FL · 2022
General support
$7,000
St Andrew'S Dune Church · Southampton, NY · 2023
General support
$5,000
Jupiter Island Arts Council · Jupiter, FL · 2025
General support
$5,000
Jupiter Island Medical Clinic · Hobe Sound, FL · 2025
General support
$5,000
Bonefish and Tarpon Trust · Miami, FL · 2024
General support
$5,000
Conservation Fund · Arlington, VA · 2024
General support
$5,000
Jupiter Island Medical Clinic · Hobe Sound, FL · 2024
General support
$5,000
Jupiter Medical Center Foundation · Jupiter, FL · 2024
General support
$5,000
St John'S Espiscopal Church · Southampton, NY · 2024
General support
$5,000
Bonefish and Tarpon Trust · Miami, FL · 2023
General support
$5,000
Jupiter Island Medical Clinic · Hobe Sound, FL · 2023
General support
$5,000
Atlantic Salmon Foundation · Calais, ME · 2022
General support
$5,000
Banner Lake Club · Hobe Sound, FL · 2022
General support
$5,000
Jupiter Island Medical Clinic · Hobe Sound, FL · 2022
General support
$4,000
St Paul'S School · Concord, NH · 2024
General support
$2,500
Jupiter Island Garden Club · Hobe Sound, FL · 2022
General support
$2,000
Marina Orth Foundation · Washington, DC · 2025
General support
$2,000
Breakwater School · Portland, ME · 2024
General support
$2,000
Center for Interfaith Relations · Louisville, KY · 2024
General support
$2,000
Friends of Independent Schools and Better Education · Seattle, WA · 2024
General support
$2,000
Southampton Association · Southampton, NY · 2024
General support
$2,000
Sse Alumni USA Inc (Dba American Friends of Sse) · Brooklyn, NY · 2024
General support
$2,000
Weill Cornell Medical College · New York, NY · 2024
General support
$2,000
Andrew K Dwyer Foundation · Hobe Sound, FL · 2023
General support
$2,000
Lake Agawam Conservancy · Southampton, NY · 2023
General support
$2,000
St Paul'S School · Concord, NH · 2023
General support
$2,000
Guardians of Martin County · Hobe Sound, FL · 2022
General support
$1,750
One West 54th St Foundation · New York, NY · 2022
General support
$1,500
Maine Coast Waldorf School · Freeport, ME · 2022
General support
$1,000
1000 Friends of Florida · Tallahassee, FL · 2025
General support
$1,000
American University of Paris · 2025
General support
$1,000
Irish Georgian Society · Chicago, IL · 2025
General support
$1,000
1000 Friends of Florida · Tallahassee, FL · 2024
General support
$1,000
American University of Paris · 2024
General support
$1,000
Computer Innovations for Today'S Youth · Port Saint Lucie, FL · 2024
General support
$1,000
Guardians of Martin County · Hobe Sound, FL · 2024
General support
$1,000
Hss Foundation (Hospital for Special Surgery - Bike Hss) · New York, NY · 2024
General support
$1,000
Jupiter Island Arts Council · Jupiter, FL · 2024
General support
$1,000
Jupiter Island Garden Club · Hobe Sound, FL · 2024
General support
$1,000
Marina Orth Foundation · Washington, DC · 2024
General support
$1,000
1000 Friends of Florida · Tallahassee, FL · 2023
General support
$1,000
American University of Paris · 2023
General support
$1,000
Boys and Girls Club of Martin County · Hobe Sound, FL · 2023
General support
$1,000
Computer Innovations for Today'S Youth · Port Saint Lucie, FL · 2023
General support
$1,000
Guardians of Martin County · Hobe Sound, FL · 2023
General support
$1,000
Hospital for Special Surgery Foundation · New York, NY · 2023
General support
$1,000
Weill Cornell Medical College · New York, NY · 2023
General support
$1,000
1000 Friends of Florida · Tallahassee, FL · 2022
General support
$1,000
Center for Interfaith Relations · Louisville, KY · 2022
General support
$1,000
Friends of Independent Schools and Better Education · Seattle, WA · 2022
General support
$1,000
Hss Foundation (Hospital for Special Surgery - Bike Hss) · New York, NY · 2022
General support
$1,000
Loaves & Fishes · Hobe Sound, FL · 2022
General support
$1,000
Marina Orth Foundation · Washington, DC · 2022
General support
$1,000
Southampton Association · Southampton, NY · 2022
General support
$1,000
Sse Alumni USA Inc (Dba American Friends of Sse) · Brooklyn, NY · 2022
General support, stockholm school of economics
$1,000
Veterinary Initiative for Endangered Wildlife · Bozeman, MT · 2022
General support
$500
Afs Intercultural Programs USA · New York, NY · 2025
General support
$500
American University of Paris · 2022
General support
$300
Chapin School · New York, NY · 2024
General support
$250
Pilgrims of the United States · New York, NY · 2022
General support
$200
St Andrew'S Dune Church · Southampton, NY · 2025
General support
$200
Brooks School · North Andover, MA · 2024
General support
$200
St Bernard'S School · New York, NY · 2024
General support
$200
Chapin School · New York, NY · 2022
General support
$100
Breakwater School · Portland, ME · 2023
General support
$100
Brooks School · North Andover, MA · 2022
General support
$100
Southampton Volunteer Firemen'S Benevolent Association · Southampton, NY · 2022
General support

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Source: 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.