How much does Donald Grant & Ann Martin Calder Foundat give?

Donald Grant & Ann Martin Calder Foundat reported 11 grants totaling $91,700 in its FY2025 IRS filing. It funded between 21 and 33 organizations a year over FY2018 to FY2024.

What does Donald Grant & Ann Martin Calder Foundat fund?

By grant dollars over FY2017 to FY2025, its largest causes are Health (22%), Environment (19%), International (16%).

Who are Donald Grant & Ann Martin Calder Foundat's largest grantees?

By total granted over FY2017 to FY2025: The National Sporting Library and Museum ($305k), The Everglades Foundation Inc ($223k), Christ Memorial Chapel ($151k).

Does Donald Grant & Ann Martin Calder Foundat fund new organizations?

In FY2024, 3% of the organizations it funded were first-time grantees.

Does Donald Grant & Ann Martin Calder Foundat accept unsolicited applications?

Its most recent filing reports that it funds preselected organizations and does not take unsolicited requests. Check the foundation's own site before ruling it out.

Which funders back the same organizations as Donald Grant & Ann Martin Calder Foundat?

Its strongest co-funders, measured against what their size predicts, include Legatus Foundation, St Clair Charitable Trust, CMB Foundation.

Where is Donald Grant & Ann Martin Calder Foundat based?

Donald Grant & Ann Martin Calder Foundat is based in FL.

Donald Grant & Ann Martin Calder Foundat

Donald Grant & Ann Martin Calder Foundat at a glance

· Private foundation

Donald Grant & Ann Martin Calder Foundat

Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$92k

Granted FY2025still arriving

Grants FY2025still arriving

States reached

$36k

Largest

01What it funds

0197% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Health$563kEnvironment$497kInternational$430kRecreation & Sports$315kReligion$214kAnimals$203kEducation$108kHuman Services$61kOther$0

02FY2025 · 11 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

Under $10k8 grants · $16k
$10k–50k3 grants · $76k

$2,000

Median grant

States reached

$1.7M

Total assets

Largest grants
Recipient	Amount
ATLANTIC SALMON FOUNDATION	$36,000
RUSH UNIVERSITY SYSTEM FOR HEALTH	$25,000
NATIONAL SPORTING LIBRARY	$15,000
JUPITER ISLAND MEDICAL CLINIC	$5,000
JUPITER ISLAND ARTS COUNCIL	$5,000
MARINA ORTH FOUNDATION	$2,000
IRISH GEORGIAN SOCIETY	$1,000
AMERICAN UNIVERSITY OF PARIS	$1,000
1000 FRIENDS OF FLORIDA	$1,000
AFS INTERCULTURAL PROGRAMS USA	$500
ST ANDREW'S DUNE CHURCH	$200

02The need

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Its human-services grants (FY19–19, $10k) land where the poverty rate runs at 10%, against an area that typically sits at 10%. 0% of those dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

grant to an above-average-need area below average· circle size = grant amount

How this is measured

Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.

Which US states its grants reach

How this is measured

US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.

Where the work is directed

The same grants placed two ways: where each recipient sits, and where its stated purpose sends the money.

About 17% of Donald Grant & Ann Martin Calder Foundat’s grant dollars are earmarked for a different county than the recipient’s own address.

Donald Grant & Ann Martin Calder Foundatlessmore of its giving

Placed by recipient address

How this is measured

Recipient view: each grant at its grantee’s ZIP, mapped to a county. Directed view: each grant at the county its stated purpose names, falling back to the recipient’s county when the purpose names no place; US grants only. A county shows only if it carries the top 95% of that view’s dollars. Purposes are read from the funder’s own 990 grant descriptions.

03Its grantees

repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

92%of every dollar goes to organizations it has funded before.

$2.0M · 50 repeat orgs$185k to everyone else

Grantees it renews have grown median revenue +25% since the first grant, against +17% for those funded once.

50 repeat relationships: 8 still active in FY2025, 42 since wound down; 3 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

Total granted

$2.0M

$159k

Median revenue growth · since first grant

+25%

+17%

Still filing today

68%

54%

New vs renewed · share of each year

In FY2025, 71% of grant dollars renewed an existing relationship; $27k went to new ones.

RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

EducationEnvironmentArts & CultureHealthAnimalsPhilanthropyOther

How this is measured

First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.

Backed again, and grew

TN
THE NATIONAL SPORTING LIBRARY AND MUSEUM
9× · 2017–2025 · $305k · revenue +223%
THE EVERGLADES FOUNDATION INC
7× · 2017–2024 · $223k · revenue +226%
Atlantic Salmon Federation (US) Inc
2× · 2017–2018 · $125k · revenue +375%

Funded once

TS
THE SOUTHAMPTON GARDEN CLUB INC
one grant, 2019 · $60k · revenue -32% · 61% of their budget
MC
MAYO CLINIC
one grant, 2022 · $25k
TA
THE ALOHA FOUNDATION INC
one grant, 2023 · $10k · revenue +0%

How this is measured

Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.

04Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

Saint Andrew's School of Boca Raton Inc

Saint andrew's school is an independent school founded in the episcopal tradition. our mission is to build a community of learners, provide excellence in education, and nurture each student in mind, body, and spirit.

Education

United States Naval Institute

Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.

—

Harvard Conservation Trust

To preserve the unique character and natural resources of harvard.

Environment

Nantucket Conservation Foundation Inc

The nantucket conservation foundation owns, protects, and stewards over 9,000 acres of land and coastal shoreline, conserves nantucket's rare and significant natural resources, and engages in impactful ecological research to inform…

Environment

Boston Architectural College

The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.

—

South Shore Charter School

The mission of south shore charter school is to cultivate students the tenacity, integrity, and curiosity needed to become innovative and socially responsible leaders, ready to face and solve the ever-changing challenges facing our…

Education

Marine Science Institute

The institutes mission is to cultivate a responsibility for the natural environment and our human communities through interdisciplinary science education.

—

Rhode Island School of Design

The mission of rhode island school of design, through its college and museum,is to educate its students and the public in the creation and (see schedule o)appreciation of works of art and design, to discover and transmit knowledge and to…

Education

School for Field Studies Inc

Sfs creates transformative study abroad experiences through field-based learning and research. our educational programs explore the human and ecological dimensions of the complex environmental problems faced by our local partners,…

—

New York Botanical Garden

The new york botanical garden is a museum of plants and a scientific research center devoted to the study of plants and their uses. it is the garden's mission to improve public understanding of the natural world, horticulture, and the…

Environment

Fauna & Flora International Usa Inc

Our mission is to act to conserve threatened species and ecosystems worldwide, choosing solutions that are sustainable, based on sound science and take into account human needs.

Philanthropy

President and Trustees of Bates College

Bates is a college of the liberal arts and sciences, and is a coeducational, nonsectarian, residential college with special commitments to academic rigor, and to assuring in all of its efforts the dignity of each individual, and access to…

Education

How this is measured

The grantee most central to the portfolio’s shape is The Southampton Hospital Foundation Inc; the most unlike its peers is The Andrew K Dwyer Foundation. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.

05the grantee network

54 grantees tracked through their own filings, 2017–2026.

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 2026, not grant rows in a single year, so this will not match the grant count on the cover. 54 of the 81 grantees resolved in that span have returns of their own we could reconcile.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

Load-bearing (≥25% of a budget)

Early backer (in before they grew)

51/54

Grantees still filing

42/54

Grew since first funded

Where the money sits, by cause and then by grantee

Other$1,056,015International$429,130Environment$396,055Education$390,885Animals$157,000Health$99,000Philanthropy$86,000

Each grantee by its size and the funder’s share of it; top left is load-bearing

Grantee by grantee: a decade per organization, before and after funding

A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

Legatus FoundationNC30.6× affinity12 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Legatus Foundation · St Clair Charitable Trust · CMB Foundation · Ethel D Colket Foundation · Colket Family Foundation · The David and Elizabeth Long Foundation · The Krimendahlsaint-Amand Foundation · The Patton Charitable Foundation · The Bessemer Giving Fund · Hugh and Patricia Okane Foundation Co Hugh Okane · Stephanie & Lawrence Flinn Jrcharitable Trust · Madigan Family Foundation

How this is measured

Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

How much its grantees rely on government

Each dot is one organization Donald Grant & Ann Martin Calder Foundat funds: left to right is the share of its income from government, bottom to top the share from Donald Grant & Ann Martin Calder Foundat. Bigger dots raise more.

2024

’20’21’22’23’24’25

no gov moneyreceives it· size = income

15get no government money at all

6report government grants on their 990 we could not trace to a source (not plotted)

0rely on government for over half their income

⤢ axis zoomed · 0–90%

typical government reliance, FY20–25

How this is measured

Government income is each org’s traced federal awards (USASpending grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that a grant caused the public funding. Coverage is precision-first, a floor rather than a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12 to 24 months.

Play a game based on Donald Grant & Ann Martin Calder Foundat’s filings →

More from the funding graph

The unnamed billions

grants reported with no recipient in the public record

The regranting layer

51% of grant dollars land in the regranting layer

The DAF merry-go-round

$9.7B circulates between donor-advised funds

The endowment market

who holds foundation money, and what just moved

The camps

funders cluster by geography, not ideology

By state

where grant money is based, and what stays home