Donald Grant & Ann Martin Calder Foundat

HOBE SOUND, FL EIN: 13-3917776

The Donald Grant and Ann Martin Calder Foundation is a private independent foundation established in 1996 and based in Hobe Sound, Florida. As a 501(c)(3) organization, it operates as a grantmaking foundation focused on philanthropic activities across multiple sectors.

Financial Overview

From 2024 IRS Form 990-PF · View filing

Total Assets

$1.2M

-4.4% YoY

Annual Giving

$344K

-29.9% YoY

Grant Count

+30.8% YoY

Avg Grant Size

$10K

-46.4% YoY

Under IRS private-foundation payout rules, Donald Grant & Ann Martin Calder Foundat reported a distributable amount of $321K for 2024 — the minimum it must pay out in qualifying distributions.

Research compiled by Grantable AI from public sources. Last updated April 2026.

Mission & Focus Areas

The foundation's primary funding interests include:

Education
Philanthropy, Voluntarism & Grantmaking
Human Services
General support and general purpose grants
COVID-19 relief

Grantmaking

The foundation provides general support and general purpose grants to its recipients.

Grant Types

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Geographic Focus

Where this funder awards grants

The foundation primarily funds organizations in:

New York
Florida
Virginia

Grant Distribution by State

New York $613K (38%)

Florida $537K (33%)

Virginia $220K (14%)

Maine $116K (7%)

Connecticut $83K (5%)

Montana $11K (1%)

New Jersey $10K (1%)

New Hampshire $10K (1%)

+5 more states

States

Connecticut District of Columbia Florida Kentucky Massachusetts Maine Montana New Hampshire New Jersey New York Virginia Vermont Washington

Cities

ArlingtonBozemanBrooklynCalaisConcordFairleeFreeportGarrisonGreenwichHobe SoundJacksonvilleJupiterLouisvilleMiamiMiddleburgNew YorkNorth AndoverPalmetto BayPort Saint LuciePortland

Financial History

Multi-year comparison from IRS filings

As of December 2023:

Total Assets: $1,291,371
Total Revenues: $194,544
Total Expenses: $558,911
Total Liabilities: $0

As of December 2024:

Total Assets: $1.24M
Revenue: $341,000
Expenses: $395,000

Investment Income: Investment income and dividends totaled $55,829 in 2023, representing a 49.1% increase from $37,442 in 2022.

Revenue

Expenses

Qualifying Distributions

Net Investment Income

Metric	2024	2023	2022
Total Assets	$1,235,141	$1,291,371	$1,669,998
Revenue	$340,725	$194,544	$1,216,100
Expenses	$395,124	$558,911	$388,538
Qualifying Distributions	$346,636	$496,242	$335,049
Net Investment Income	$292,237	$124,472	$1,162,611
Distributable Amount	$320,871	$306,610	$260,415

Giving Over Time

Total grant dollars and number of grants per year

Grant Insights

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2024

Grant Size Distribution

143 grants across all recorded years

Giving History

Grant recipients and amounts by year

Among its reported 2024 grants, the largest include Myriad Usa ($94,000), Christ Memorial Chapel ($50,600), Everglades Foundation ($50,000).

Recipient	Purpose	Amount
1000 FRIENDS OF FLORIDA TALLAHASSEE, FL	GENERAL SUPPORT	$1,000
AMERICAN UNIVERSITY OF PARIS	GENERAL SUPPORT	$1,000
BANNER LAKE CLUB HOBE SOUND, FL	GENERAL SUPPORT	$10,000
BONEFISH AND TARPON TRUST MIAMI, FL	GENERAL SUPPORT	$5,000
BREAKWATER SCHOOL PORTLAND, ME	GENERAL SUPPORT	$2,000
BROOKS SCHOOL NORTH ANDOVER, MA	GENERAL SUPPORT	$200
CENTER FOR INTERFAITH RELATIONS LOUISVILLE, KY	GENERAL SUPPORT	$2,000
CHAPIN SCHOOL NEW YORK, NY	GENERAL SUPPORT	$300
CHRIST MEMORIAL CHAPEL HOBE SOUND, FL	GENERAL SUPPORT	$50,600
COMPUTER INNOVATIONS FOR TODAY'S YOUTH PORT SAINT LUCIE, FL	GENERAL SUPPORT	$1,000

Leadership & Key People

Officers and directors from IRS filings

Compensation Overview

From 2024 IRS filing

From 2024 filing

Name	Title	Hours	Compensation
DONALD GRANT CALDER	DIRECTOR	0.25	—
ANN MARTIN CALDER	DIRECTOR	0.25	—
DONALD GRANT CALDER JR	DIRECTOR	0.25	—
CORNELIA MARTIN CALDER	DIRECTOR	0.25	—
ISABELLA SWIFT CALDER	DIRECTOR	0.25	—

Contact Information

Address: 220 South Beach Road Hobe Sound, FL 33455-2515

Telephone: 772-546-2502

Additional Address on File: 164 East 72nd Street New York, NY 10021

Subject Areas

Focus areas based on grantmaking activity

Philanthropy, Voluntarism & Grantmaking

Frequently Asked Questions

What does Donald Grant & Ann Martin Calder Foundat fund?

The foundation's primary funding interests include: • Education • Philanthropy, Voluntarism & Grantmaking • Human Services • General support and general purpose grants • COVID-19 relief

How do I apply for a grant from Donald Grant & Ann Martin Calder Foundat?

**Grant Activity:** • Made 21 grants in 2023 • Total giving: $491,285 (based on 2023 data) • Typical award range: $100–$118,130 **Recent Grantees (2023):** • National Sporting Library: $78,000 • The Southampton Hospital Foundation: $30,000 • The Garden Conservancy: $25,000 • Everglades Foundation (among other recipients) **Grant Types:** The foundation provides general support and general purpose grants to its recipients.

Where does Donald Grant & Ann Martin Calder Foundat make grants?

The foundation primarily funds organizations in: • New York • Florida • Virginia

What size grants does Donald Grant & Ann Martin Calder Foundat award?

In 2024, Donald Grant & Ann Martin Calder Foundat awarded 34 grants totaling $344K — an average of about $10K per grant, based on its IRS Form 990 filings.

How much is Donald Grant & Ann Martin Calder Foundat required to give away each year?

Private foundations must generally distribute about 5% of their assets annually. For 2024, Donald Grant & Ann Martin Calder Foundat reported a distributable amount of $321K on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.

What is Donald Grant & Ann Martin Calder Foundat's EIN?

Donald Grant & Ann Martin Calder Foundat's EIN (Employer Identification Number) is 13-3917776. IRS Form 990 filing data is available on this page for 2020–2024.