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The Postage Stamp Farm Foundation Inc at a glance

· Private foundation

The Postage Stamp Farm Foundation Inc

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.

$453k
Granted FY2025still arriving
14
Grants FY2025still arriving
5
States reached
$180k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0194% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.

Arts & Culture$1.4MHealth$705kYouth Development$322kPhilanthropy$315kEducation$291kAnimals$289kReligion$245kEnvironment$201kOther$0
02FY2025 · 14 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k4 grants · $8k
  • $10k–50k6 grants · $100k
  • $50k–250k4 grants · $345k
$15,000
Median grant
5
States reached
$9.3M
Total assets
Largest grants
RecipientAmount
CSI GREENWICH LLC$180,000
THE KEVIN BABINGTON FOUNDATION$60,000
FIDELITY CHARITABLE GIFT FUND$55,000
THE NORTON MUSEUM OF ART$50,000
THE EVERGLADES FOUNDATION$30,000
LONG BRANCH HISTORIC HOUSE AND FARM$25,000
THE MCKENNA FOUNDATION INC$15,000
HIGHLANDS HORSE SHOWS INC$10,116
POLO FOR LIFE INC$10,000
A-T CHILDREN'S PROJECT$10,000
MILLBROOK HORSE TRIALS$5,000
SKIDMORE COLLEGE$1,000
MILLBROOK HUNT$1,000
POLO TRAINING FOUNDATION$500
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 (FY20–20, $15k) land where the poverty rate runs at 11%, against an area that typically sits at 12%. 0% of those dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 12%THE DRESS FOR SUCCESS PALM BEACH: $15k → 11%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

NH
NY
MA
PA
NJ
CT
RI
CA
KY
VA
NC
SC
TX
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.

89%of every dollar goes to organizations it has funded before.
$3.9M · 30 repeat orgs$479k to everyone else

30 repeat relationships: 12 still active in FY2025, 18 since wound down; 1 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

30
29

Total granted

$3.9M
$469k

Median revenue growth · since first grant

+19%
+22%

Still filing today

80%
66%

New vs renewed · share of each year

In FY2025, 97% of grant dollars renewed an existing relationship; $10k went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

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

’17’18’19’20’21’22’23’24’25
AnimalsEducationArts & CultureHealthEnvironmentRecreation & SportsOther
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

  • TB
    THE BRANT FOUNDATION INC
    3× · 2018–2020 · $395k · revenue +30%
  • PF
    Polo For Life Inc
    6× · 2018–2025 · $384k · revenue +89%
  • EP
    Epona's Path Inc
    8× · 2017–2024 · $245k · revenue +61% · 39% of their budget

Funded once

  • ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
    one grant, 2021 · $100k · revenue +22%
  • SP
    ST PAUL'S SCHOOLgraduated
    one grant, 2018 · $50k · revenue +111%
  • Southern Methodist University
    one grant, 2023 · $50k · revenue +14%
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
The Trustees of Princeton University

Research, education and general - princeton university is a private not-for-profit, non-sectarian institution of higher learning with approximately 5,700 undergraduate and 3,300 graduate students. 2,500 students graduated in the 2024-2025…

Education
2
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
3
The Pierpont Morgan Library

The Morgan Library & Museum celebrates and shares the history and process of human creativity from antiquity to the present day through the preservation, study, and interpretation of a dynamic and growing collection.

Education
4
The Jockey Club

The organization is dedicated to the improvement of thoroughbred breeding and racing. It fulfills that mandate by serving many segments of the industry through its subsidiary companies and by providing support to a wide range of industry…

Recreation & Sports
5
Grayson-Jockey Club Research Foundation Inc

The organization is committed to the advancement of research to enhance the safety and health of the horse.

Animals
6
Stony Brook Urology University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
7
Breeders' Cup Limited

To conduct the breeders' cup world championships at the highest levels of quality, safety and integrity and to promote the growth of thoroughbred breeding, racing and sales through proactive leadership, innovation and service.

—
8
Mitchell College

Mitchell college educates students through a highly individualized educational approach that brings forward each student's potential, reveals their strengths, and fosters personal growth.

Education
9
Trustees of Dartmouth College

Dartmouth College educates the most promising students and prepares them for a lifetime of learning and of responsible leadership, through a faculty dedicated to teaching and the creation of knowledge.

Education
10
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
11
Stony Brook Ophthalmology University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
12
Fordham University

Fordham university, the jesuit university of new york, is committed to the discovery of wisdom and the transmission of learning, through research and through education of the highest quality. for more information, see schedule o.

Education
How this is measured
The grantee most central to the portfolio’s shape is Polo Training Foundation; the most unlike its peers is Richard Hampton Jenrette Foundation. 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

45 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. 45 of the 62 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.

2
Load-bearing (≥25% of a budget)
11
Early backer (in before they grew)
45/45
Grantees still filing
36/45
Grew since first funded

Where the money sits, by cause and then by grantee

NORTON MUSEUM OF ART INC: $975,000 · Arts & CultureNORTON MUSEUM OF ART INCTHE BRANT FOUNDATION INC: $395,000 · Arts & CultureTHE BRANT FOUNDATION INCLONG BRANCH HISTORIC HOUSE & FARM: $75,000 · Arts & Culture+2 more: $81,500 · Arts & Culture+2 moreCSI GREENWICH LLC: $370,000 · OtherCSI GREENWICH LLCWORK TO RIDE INC: $245,000 · OtherWORK TO RIDE INCUSET FOUNDATION: $123,289 · OtherUSET FOUNDATIONIndividual grant recipient: $70,000 · OtherIndividual grant recipientMILLBROOK HORSE TRAILS: $40,000 · OtherBOYS & GIRLS CLUB OF PBC: $76,500 · OtherBOYS & GIRLS CLUB OF PBC+25 more: $242,206 · Other+25 morePolo For Life Inc: $383,500 · HealthPolo For Life …BLOOD CANCER UNITED INC: $106,650 · HealthBLOOD CANCER U…KEVIN BABINGTON FOUNDATION: $93,000 · HealthKEVIN BABINGTO…THE DEBUTANTE COTILLION AND CHRISTMAS BALL INC: $38,400 · HealthTHE DEBUTANTE …+1 more: $4,500 · HealthEpona's Path Inc: $245,000 · AnimalsEpona's Path…VETERINARY CARE FOUNDATION INCORPORATED: $150,000 · AnimalsVETERINARY C…HAVEN AT SKANDA: $50,000 · AnimalsHAVEN AT SKA…OMEGA HORSE RESCUE AND REHABILITATION CENTER INC: $32,500 · AnimalsOMEGA HORSE …+5 more: $35,000 · Animals+5 moreFIDELITY INVESTMENTS CHARITABLE GIFT FUND: $316,000 · Community ImprovementFIDELITY I…BROWN UNIVERSITY: $144,150 · Community ImprovementBROWN UNIV…THE EVERGLADES FOUNDATION INC: $225,000 · EnvironmentWETHERSFIELD FOUNDATION INC: $54,000 · Environment+2 more: $6,000 · EnvironmentICAHN SCHOOL OF MEDICINE AT MOUNT SINAI: $100,000 · EducationST PAUL'S SCHOOL: $50,000 · EducationSouthern Methodist University: $50,000 · EducationSKIDMORE COLLEGE: $16,600 · EducationMILLBROOK SCHOOL: $15,000 · Education+1 more: $1,000 · Education
Arts & Culture$1,526,500Other$1,166,995Health$626,050Animals$512,500Community Improvement$460,150Environment$285,000Education$232,600

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 budgetNORTON MUSEUM OF ART INC: $975,000 over 8y, 1.0% of budgetPolo For Life Inc: $383,500 over 6y, 25% of budgetFIDELITY INVESTMENTS CHARITABLE GIFT FUND: $316,000 over 7y, 0.0% of budgetEpona's Path Inc: $245,000 over 8y, 39% of budgetWORK TO RIDE INC: $245,000 over 4y, 34% of budgetTHE EVERGLADES FOUNDATION INC: $225,000 over 7y, 0.4% of budgetVETERINARY CARE FOUNDATION INCORPORATED: $150,000 over 2y, 2.5% of budgetBROWN UNIVERSITY: $144,150 over 6y, 0.0% of budgetBLOOD CANCER UNITED INC: $106,650 over 2y, 0.0% of budgetICAHN SCHOOL OF MEDICINE AT MOUNT SINAI: $100,000 over 1y, 0.0% of budgetBOYS & GIRLS CLUB OF PBC: $76,500 over 4y, 0.4% of budgetLONG BRANCH HISTORIC HOUSE & FARM: $75,000 over 3y, 4.6% of budgetWETHERSFIELD FOUNDATION INC: $54,000 over 3y, 1.1% of budgetST PAUL'S SCHOOL: $50,000 over 1y, 0.1% of budgetHAVEN AT SKANDA: $50,000 over 5y, 8.9% of budgetSouthern Methodist University: $50,000 over 1y, 0.0% of budgetMETROPOLITAN MUSEUM OF ART: $49,500 over 1y, 0.0% of budgetTHE DEBUTANTE COTILLION AND CHRISTMAS BALL INC: $38,400 over 2y, 2.3% of budgetAtaxia Telangiectasia Children's Project Inc: $33,615 over 3y, 0.6% of budgetOMEGA HORSE RESCUE AND REHABILITATION CENTER INC: $32,500 over 1y, 5.7% of budgetNational Museum of Polo & Hall of Fame: $32,000 over 2y, 4.6% of budgetSKIDMORE COLLEGE: $16,600 over 3y, 0.0% of budgetPOLO TRAINING FOUNDATION: $16,500 over 5y, 1.0% of budgetMILLBROOK SCHOOL: $15,000 over 3y, 0.0% of budgetDRESS FOR SUCCESS PALM BEACHES: $15,000 over 1y, 3.3% of budgetDec My Room Inc: $10,000 over 1y, 3.0% of budgetELITE GREYHOUND ADOPTIONS INC: $10,000 over 2y, 5.3% of budgetMILLBROOK HORSE TRIALS INC: $10,000 over 2y, 1.5% of budgetALL SEATED IN A BARN: $10,000 over 1y, 0.2% of budgetPEGASUS THERAPEUTIC RIDING INC: $5,000 over 1y, 0.4% of budgetAFTER THE FINISH LINE: $5,000 over 1y, 6.5% of budgetPANTHER RIDGE CONSERVATION CENTER INC: $5,000 over 1y, 3.2% of budgetOUTWARD BOUND INC: $5,000 over 1y, 0.1% of budgetDANNY & RONS RESCUE: $5,000 over 1y, 0.1% of budgetPolo Players Support Group Inc: $5,000 over 2y, 0.9% of budgetRICHARD HAMPTON JENRETTE FOUNDATION: $5,000 over 1y, 0.5% of budgetBONE MARROW & CANCER FOUNDATION INC: $4,500 over 3y, 0.1% of budgetACCESSIBILITY ACCELERATOR INC: $2,500 over 1y, 1.0% of budgetMILLBROOK HUNT INC: $2,000 over 2y, 0.1% of budgetTHE BREARLEY SCHOOL: $1,000 over 1y, 0.0% of budgetDUTCHESS LAND CONSERVANCY INC: $1,000 over 1y, 0.0% 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.

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.

Anna-Maria and Stephe…The Bessemer Giving F…The Goldman Sachs Cha…National Philanthropi…Jpmorgan Chase Founda…Gs Donor Advised Phil…Renaissance Charitabl…Morgan Stanley Global…Vanguard Charitable E…The Pfizer Foundation…Network for GoodThe Blackbaud Giving …
Anna-Maria and Stephen Kellen Foundation Inc C/O Joel E Sammet & Co LLPNY17.7× affinity6 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Anna-Maria and Stephen Kellen Foundation Inc C/O Joel E Sammet & Co LLP · The Bessemer Giving Fund · The Goldman Sachs Charitable Gift Fund · National Philanthropic Trust · Jpmorgan Chase Foundation · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · Renaissance Charitable Foundation Inc · Morgan Stanley Global Impact Funding Trust Inc · Vanguard Charitable Endowment Program · The Pfizer Foundation Inc · Network for Good · The Blackbaud Giving Fund

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 The Postage Stamp Farm Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from The Postage Stamp Farm Foundation Inc. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 130%3%10%23%40%funder's share of their income ↑0%5%10%15%20%share of the org’s income from government →
    no gov moneyreceives it· size = income
    13get no government money at all
    8report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–20%
    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 The Postage Stamp Farm Foundation Inc?

    Find your warmest path to The Postage Stamp Farm Foundation Inc 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 62 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

    Play a game based on Postage Stamp Farm’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