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· Private foundation

Montauk Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$223k
Granted FY2025still arriving
17
Grants FY2025still arriving
6
States reached
$80k
Largest
01What it funds
0189% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2018 to 2025.

Education$413kArts & Culture$346kHealth$100kHuman Services$70kEnvironment$58kRecreation & Sports$55kYouth Development$55kAnimals$53kOther$0
02FY2025 · 17 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k9 grants · $27k
  • $10k–50k6 grants · $66k
  • $50k–250k2 grants · $130k
$7,500
Median grant
6
States reached
$4.0M
Total assets
Largest grants
RecipientAmount
Individual grant recipient$80,000
Massachusetts General Hospital$50,000
Global Impact$15,000
Impact Reading$11,000
Smith College$10,000
Phillips Academy - Vendor$10,000
Expressiones Cultural Center$10,000
La Grua Foundation$10,000
The Everglades Foundation$7,500
New England Science and Sailing Fdn$5,000
Stonington Historical Society$5,000
Garde Arts Center Inc$5,000
Ocean Community YMCA$1,000
Ocean Community YMCA$1,000
Maine Community Foundation Inc$1,000
02The need
03

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 (FY23–23, $10k) land where the poverty rate runs at 9%, against an area that typically sits at 11%. 0% of those dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 11%Safe Futures: $10k → 9%0%20%40%50%more need →
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

ME
IL
NY
MA
CT
RI
CA
DC
AL
FL
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.
03Its grantees
repeat funding

Who it funds again

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

88%of every dollar goes to organizations it has funded before.
$1.5M · 27 repeat orgs$200k to everyone else

27 repeat relationships: 10 still active in FY2025, 17 since wound down; 2 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

27
14

Total granted

$1.5M
$178k

Median revenue growth · since first grant

+26%
+37%

Still filing today

67%
43%

New vs renewed · share of each year

In FY2025, 89% of grant dollars renewed an existing relationship; $22k went to new ones.

50%100%’18’19’20’21’22’23’24’25
RenewedFirst-time

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

’18’19’20’21’22’23’24’25
Arts & CultureRecreation & SportsAnimalsEducationEnvironmentFood & NutritionOther
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

  • TF
    The Farm School Inc
    5× · 2020–2024 · $70k · revenue +76%
  • FS
    FAYERWEATHER STREET SCHOOL INC
    7× · 2018–2024 · $67k · revenue +23%
  • NE
    NEW ENGLAND SCIENCE & SAILING FOUNDATION INC
    5× · 2019–2025 · $50k · revenue +11%

Funded once

  • IL
    Indwe Learning Centers Inc
    one grant, 2018 · $30k
  • NL
    NEW LONDON MARITIME SOCIETY INC
    one grant, 2018 · $25k · revenue -35%
  • NE
    New England Science and Sailing
    one grant, 2018 · $25k
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.

1
Western New England University

Western new england university, a comprehensive private institution with a tradition of excellence in teaching and scholarship and a commitment to service, awards undergraduate, master's, and doctoral degrees in various departments from…

Education
2
The Quebec-Labrador Foundation Inc

The program mission of the quebec-labrador foundation u.s. is defined by a regional component (new england and eastern canada), and an international component, which ties our regional model to a global conservation network. qlf's program…

Philanthropy
3
New England Museum Association

New england museum association's mission is to connect a community engaged in learning, collaboration, and action to cultivate a better museum world.

—
4
Phillips Exeter Academy

Unite goodness and knowledge and inspire youth from every quarter to lead purposeful lives. [text in quotations is taken from the academy's deed of gift, drafted in 1781] knowledge and goodness "above all, it is expected that the attention…

Education
5
The House of the Seven Gables Settlement Association

Vision: to preserve, share and continue the american story mission: to be a welcoming, thriving, historic site and community resource that engages people of all backgrounds in our inclusive american story. values: - we value caroline…

—
6
Isabella Stewart Gardner Museum Inc

Organization's mission statement true to the ambitious vision of its founder and her spirit of creative risk-taking, the mission of the isabella stewart gardner museum is: - to bring to life and preserve the rich historic collection; - to…

Arts & Culture
7
Natural Resources Trust of Easton

It is the mission of the natural resources trust of easton (nrt) to educate the public of significant natural and cultural resources and to acquire and preserve land of special character for the benefit of the public.

Environment
8
American Museum of Natural History

The museum's mission statement is: "to discover, interpret, and disseminate - through scientific research and education - knowledge about human cultures, the natural world, and the universe."

Arts & Culture
9
Maine Audubon Society

Maine Audubon works to conserve Maine's wildlife and habitat by engaging people of all ages in education, conservation, and action. We are helping the people of Maine become the nation's most informed and effective stewards of wildlife and…

Environment
10
New York Hall of Science

Nysci's mission is to nurture generations of passionate learners, critical thinkers, and active citizens through design make play - an approach to learning and engagement that is deeply rooted in research on stem learning and guides the…

Arts & Culture
11
Seacoast Science Center Inc

It is the mission of the seacoast science center to spark curiosity, enhance understanding, and inspire conservation of our blue planet. the center's programming and exhibits encourage visitors and other program participants to recognize…

Arts & Culture
12
Lowell Observatory

The mission of lowell observatory is to pursue the study of astronomy, especially the study of our solar system and its evolution; to conduct pure research in astronomical phenomena; and to maintain quality public education and outreach…

Science & Tech
How this is measured
The grantee most central to the portfolio’s shape is New England Science & Sailing Foundation Inc; the most unlike its peers is Parliamentarians for Global Action. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
04the grantee network

26 grantees tracked through their own filings, 2017–2025.

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 2025, not grant rows in a single year, so this will not match the grant count on the cover. 26 of the 45 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.

0
Load-bearing (≥25% of a budget)
6
Early backer (in before they grew)
26/26
Grantees still filing
18/26
Grew since first funded

Where the money sits, by cause and then by grantee

Individual grant recipient: $289,000 · OtherIndividual grant recipientPINE POINT SCHOOL INC: $94,500 · OtherPINE POINT SCHOOL INCMassachusetts General Hospital: $90,000 · OtherMassachusetts General HospitalLA GRUA FOUNDATION: $83,000 · OtherLA GRUA FOUNDATIONThe Farm School Inc: $70,000 · OtherThe Farm School IncFAYERWEATHER STREET SCHOOL INC: $66,500 · OtherFAYERWEATHER STREET SCHOOL INC+25 more: $376,000 · Other+25 moreSTONINGTON HISTORICAL SOCIETY INC: $255,500 · Arts & CultureSTONINGTON HISTORICA…EXPRESSIONES CULTURAL CENTER INC: $35,000 · Arts & CultureEXPRESSIONES CULTURA…+2 more: $15,000 · Arts & CultureTRUSTEES OF PHILLIPS ACADEMY: $88,500 · EducationTHE TRUSTEES OF THE SMITH COLLEGE: $41,000 · EducationNEW ENGLAND SCIENCE & SAILING FOUNDATION INC: $50,000 · Recreation & SportsTHE BASEBALL INC: $30,000 · Recreation & SportsSTAND UP FOR ANIMALS: $27,500 · AnimalsMASSACHUSETTS SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS: $25,000 · AnimalsTHE EVERGLADES FOUNDATION INC: $35,000 · EnvironmentDENISON PEQUOTSEPOS NATURE CENTER: $8,000 · EnvironmentMaine Farmland Trust: $27,500 · Food & NutritionNATIONAL YOUNG FARMERS COALITION INC: $5,000 · Food & Nutrition
Other$1,069,000Arts & Culture$305,500Education$129,500Recreation & Sports$80,000Animals$52,500Environment$43,000Food & Nutrition$32,500

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

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetSTONINGTON HISTORICAL SOCIETY INC: $255,500 over 6y, 10.0% of budgetPINE POINT SCHOOL INC: $94,500 over 7y, 0.8% of budgetTRUSTEES OF PHILLIPS ACADEMY: $88,500 over 5y, 0.0% of budgetThe Farm School Inc: $70,000 over 5y, 1.1% of budgetFAYERWEATHER STREET SCHOOL INC: $66,500 over 7y, 0.4% of budgetNEW ENGLAND SCIENCE & SAILING FOUNDATION INC: $50,000 over 5y, 0.8% of budgetTHE TRUSTEES OF THE SMITH COLLEGE: $41,000 over 8y, 0.0% of budgetEXPRESSIONES CULTURAL CENTER INC: $35,000 over 3y, 6.2% of budgetTHE EVERGLADES FOUNDATION INC: $35,000 over 6y, 0.0% of budgetTHE BASEBALL INC: $30,000 over 3y, 0.4% of budgetSTAND UP FOR ANIMALS: $27,500 over 4y, 1.9% of budgetMaine Farmland Trust: $27,500 over 4y, 0.2% of budgetMASSACHUSETTS SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS: $25,000 over 3y, 0.0% of budgetNEW LONDON MARITIME SOCIETY INC: $25,000 over 1y, 11% of budgetGlobal Impact: $15,000 over 1y, 0.0% of budgetPARLIAMENTARIANS FOR GLOBAL ACTION: $15,000 over 2y, 0.5% of budgetEQUAL JUSTICE INITIATIVE: $10,000 over 2y, 0.0% of budgetGarde Arts Center Inc: $10,000 over 2y, 0.3% of budgetSafe Futures Inc: $10,000 over 1y, 0.4% of budgetBOYS & GIRLS CLUBS OF DORCHESTER INC: $10,000 over 2y, 0.1% of budgetA BETTER WAY FOUNDATION ABWF INC: $10,000 over 1y, 0.8% of budgetMaine Community Foundation Inc: $9,000 over 7y, 0.0% of budgetDENISON PEQUOTSEPOS NATURE CENTER: $8,000 over 2y, 0.3% of budgetPLAY BALL FOUNDATION INC: $5,000 over 1y, 0.6% of budgetUNITED STATES NATIONAL COMMITTEE OF THE INTL COUNCIL ON MONUM & SITES: $5,000 over 1y, 0.6% of budgetNATIONAL YOUNG FARMERS COALITION INC: $5,000 over 1y, 0.1% of budget
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.

  • Who funds STONINGTON HISTORICAL SOCIETY INC ↗
  • Who funds PINE POINT SCHOOL INC ↗
  • Who funds TRUSTEES OF PHILLIPS ACADEMY ↗
  • Who funds The Farm School Inc ↗
  • Who funds FAYERWEATHER STREET SCHOOL INC ↗
  • Who funds NEW ENGLAND SCIENCE & SAILING FOUNDATION INC ↗
  • Who funds THE TRUSTEES OF THE SMITH COLLEGE ↗
  • Who funds EXPRESSIONES CULTURAL CENTER INC ↗
  • Who funds THE EVERGLADES FOUNDATION INC ↗
  • Who funds THE BASEBALL INC ↗
  • Who funds STAND UP FOR ANIMALS ↗
  • Who funds Maine Farmland Trust ↗
  • Who funds MASSACHUSETTS SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS ↗
  • Who funds NEW LONDON MARITIME SOCIETY INC ↗
  • Who funds Global Impact ↗
  • Who funds PARLIAMENTARIANS FOR GLOBAL ACTION ↗
  • Who funds EQUAL JUSTICE INITIATIVE ↗
  • Who funds Garde Arts Center Inc ↗
  • Who funds Safe Futures Inc ↗
  • Who funds BOYS & GIRLS CLUBS OF DORCHESTER INC ↗
  • Who funds A BETTER WAY FOUNDATION ABWF INC ↗
  • Who funds Maine Community Foundation Inc ↗
  • Who funds DENISON PEQUOTSEPOS NATURE CENTER ↗

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.

The Community Foundation of Eastern Connecticut IncCT24.1× affinity9 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Community Foundation of Eastern Connecticut Inc · Chelsea Groton Foundation · The Edward and Mary Lord Foundation · Kitchings Family Foundation · Connecticut Humanities Council Inc · The Pfizer Foundation Inc · Dominion Energy Charitable Foundation · Dime Bank Foundation Inc · Charities Aid Foundation America · National Philanthropic Trust · The Bank of America Charitable Foundation Inc · American Online Giving Foundation Inc

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 Montauk Foundation funds: left to right is the share of its income from government, bottom to top the share from Montauk Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 70%1%3%6%10%funder's share of their income ↑0%19%38%56%75%share of the org’s income from government →median 7%
  • Safe Futures Inc: 15% of income from government
  • The Farm School Inc: 12% of income from government
  • Garde Arts Center Inc: 10% of income from government
  • Boys & Girls Clubs of Dorchester Inc: 7% of income from government
  • Expressiones Cultural Center Inc: 3% of income from government
  • The Trustees of the Smith College: 1% of income from government
  • The Baseball Inc: 1% of income from government
  • Denison Pequotsepos Nature Center: 0% of income from government
no gov moneyreceives it· size = income
7get no government money at all
3report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–75%
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.
05Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to Montauk Foundation?

Find your warmest path to Montauk Foundation through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.

Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 45 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990-PF e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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