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Plinth

· Private foundation

The Summerhill Foundation

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.

$123k
Granted FY2025still arriving
1
Grants FY2025still arriving
1
States reached
$123k
Largest
01What you fund
0186% classified

What you funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year — across FY20172025.

Arts & Culture$66kEducation$40kHealth$27kPhilanthropy$22kCivil Rights$8kHuman Services$4kEnvironment$2kRecreation & Sports$2kOther$0
02FY2025 · 1 grant

Where the money goes

Your grants by size, and where they go.

$123,350
Median grant
1
States reached
$1.6M
Total assets
Largest grants
RecipientAmount
VARIOUS CONTRIBUTIONS FROM YEAR END REPORT$123,350
02Your edge
repeat funding

Who you back again

Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.

82%of every dollar goes to organizations you’ve funded before.
$399k · 27 repeat orgs$86k to everyone else

27 repeat relationships — 1 still active in FY2025, 26 since wound down.

How the two cohorts compare

Re-uppedFunded once

Organizations

27
28

Total granted

$399k
$86k

Median revenue growth · since first grant

+6%
+7%

Still filing today

56%
11%

New vs renewed · share of each year

In FY2025, 100% of grant dollars renewed an existing relationship; $0 went to new ones.

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

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

’19’21’22’23’24’25
EducationArts & CultureRecreation & SportsPhilanthropyCivil RightsHuman ServicesOther

First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). 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

  • MO
    Museum of Modern Art
    2× · 2021–2022 · $5k · revenue +44%
  • SM
    Stamford Museum & Nature Center Inc
    2× · 2021–2022 · $4k · revenue +87%
  • TO
    TRUSTEES OF DEERFIELD ACADEMY
    2× · 2021–2022 · $3k · revenue +6%

Funded once

  • SM
    Stamford Museum & Nature Center
    one grant, 2019 · $51k
  • UW
    United Way of Western CT
    one grant, 2019 · $5k
  • CF
    Center for Reproductive Rights
    one grant, 2019 · $3k

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

03Your field

The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.

1
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
2
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
3
The Frick Collection

The Frick Collection (the "Collection") operates an internationally recognized art museum and library program for the inspiration and enjoyment of the public and for the advancement of the study of fine arts and kindred subjects.

4
The Brooklyn Institute of Arts and Sciences

The mission of the brooklyn institute of arts and sciences, d/b/a brooklyn museum (the "museum") is to bring people together through art and experiences that inspire celebration, compassion, courage, and the will to act. (see schedule o).

Arts & Culture
5
University of New Haven

The University of New Haven is a student-centered comprehensive university with an emphasis on excellence in liberal arts and professional education. Our mission is to prepare our students to lead purposeful and fulfilling lives in a…

Education
6
Fairfield University

To establish, organize, maintain and conduct an institution for secondary, undergraduate and graduate education in the state of connecticut, and to perform such other works of education, charity and religion. see schedule o.

Education
7
The Jewish Museum

The mission of the jewish museum is to collect, preserve, exhibit and interpret art and jewish culture. see schedule o for more information.

Arts & Culture
8
Connecticut Aeronautical Historical Association Inc

The new england air museum's mission is to preserve and present the story of aviation and aerospace, with an emphasis on new england's role, and the genius and inspiration that made it possible. the museum also seeks to inspire young…

Arts & Culture
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
Wnet

Wnet is a multi-media public service non-profit that delivers lifelong learning and meaningful experiences to our communities. our content inspires curiosity, encourages action and nurtures dreams.

Arts & Culture
11
Florence Griswold Museum Inc

The florence griswold museum seeks to promote a greater understanding of connecticut's contribution to american art and history through public exhibitions and educational programs.

Arts & Culture
12
Dutchess Land Conservancy Inc

Dutchess land conservancy (dlc) is dedicated to preserving the scenic, agricultural and environmental resources of dutchess county, new york, and the surrounding area. dlc, as a private non-profit land conservation organization, carries…

Environment

For reference, the grantee most central to the portfolio’s shape is The New Canaan Country School Incorporated and the most unlike its peers is Metropolitan Museum of Art. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.

03the grantee network

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

Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.

Counted here: distinct organizations you funded across 20172025, not grant rows in a single year — so this will not match the grant count on the cover. 19 of the 56 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.

0
Load-bearing (≥25% of a budget)
3
Early backer (in before they grew)
19/19
Grantees still filing
12/19
Grew since you first funded

Where your money sits — by cause, then by grantee

VARIOUS CONTRIBUTIONS FROM YEAR END REPORT — $303,800 · OtherVARIOUS CONTRIBUTIONS FROM YEAR END REPORTStamford Museum & Nature Center — $51,000 · OtherStamford Museum & Nature CenterStamford Hospital Foundation — $20,000 · OtherHarvard College Fund — $15,000 · Other+37 more — $55,000 · Other+37 moreUNITED WAY OF COASTAL AND WESTERN CONNECTICUT INC — $10,000 · PhilanthropyFAIRFIELD COUNTY'S COMMUNITY FOUNDATION INC — $3,250 · PhilanthropyMuseum of Modern Art — $5,000 · Arts & CultureStamford Museum & Nature Center Inc — $3,500 · Arts & CultureMETROPOLITAN MUSEUM OF ART — $2,000 · Arts & CultureNEW YORK PUBLIC RADIO — $500 · Arts & CultureGARRISON FOREST SCHOOL INC — $3,000 · EducationTRUSTEES OF DEERFIELD ACADEMY — $3,000 · EducationTHE NEW CANAAN COUNTRY SCHOOL INCORPORATED — $2,000 · EducationTHE FERGUSON LIBRARY — $1,000 · EducationThe New York Public Library Astor Lenox and Tilden Foundations — $500 · EducationTHE CENTER FOR REPRODUCTIVE RIGHTS INC — $5,000 · Civil RightsHOLE IN THE WALL GANG FUND INC — $2,000 · Recreation & SportsHORIZONS INC — $1,500 · Recreation & SportsTHE TRANSPORTATION ASSOCIATION OF GREENWICH — $1,000 · Human Services
Other$444,800Philanthropy$13,250Arts & Culture$11,000Education$9,500Civil Rights$5,000Recreation & Sports$3,500Human Services$1,000

Each org by its size and your share of it — top-left is where you’re load-bearing

25%50%75%100%$10M$100Mgrantee revenue →↑ your share of their budgetUNITED WAY OF COASTAL AND WESTERN CONNECTICUT INC — $10,000 over 2y, 0.1% of budgetTHE CENTER FOR REPRODUCTIVE RIGHTS INC — $5,000 over 2y, 0.0% of budgetMuseum of Modern Art — $5,000 over 2y, 0.0% of budgetStamford Museum & Nature Center Inc — $3,500 over 2y, 0.1% of budgetFAIRFIELD COUNTY'S COMMUNITY FOUNDATION INC — $3,250 over 2y, 0.0% of budgetGARRISON FOREST SCHOOL INC — $3,000 over 2y, 0.0% of budgetTRUSTEES OF DEERFIELD ACADEMY — $3,000 over 2y, 0.0% of budgetMETROPOLITAN MUSEUM OF ART — $2,000 over 2y, 0.0% of budgetTHE NEW CANAAN COUNTRY SCHOOL INCORPORATED — $2,000 over 2y, 0.0% of budgetHOLE IN THE WALL GANG FUND INC — $2,000 over 2y, 0.0% of budgetFAMILY CENTERS INC — $2,000 over 2y, 0.0% of budgetHORIZONS INC — $1,500 over 1y, 0.1% of budgetTHE TRANSPORTATION ASSOCIATION OF GREENWICH — $1,000 over 2y, 0.1% of budgetADVANCED MEDICAL RESEARCH FOUNDATION INCD/B/A NILE ALBRIGHT RESEARCH FDN — $1,000 over 1y, 0.0% of budgetTHE FERGUSON LIBRARY — $1,000 over 2y, 0.0% of budgetTHE FOOD BANK OF LOWER FAIRFIELD COUNTY INC — $1,000 over 1y, 0.0% of budgetSTAMFORD LAND CONSERVATION TRUST INC — $500 over 2y, 0.1% of budgetNEW YORK PUBLIC RADIO — $500 over 2y, 0.0% of budgetThe New York Public Library Astor Lenox and Tilden Foundations — $500 over 2y, 0.0% of budget
Go grantee by grantee — a decade per org, and how each moved after you funded them

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

  • Who funds UNITED WAY OF COASTAL AND WESTERN CONNECTICUT INC
  • Who funds THE CENTER FOR REPRODUCTIVE RIGHTS INC
  • Who funds Museum of Modern Art
  • Who funds Stamford Museum & Nature Center Inc
  • Who funds FAIRFIELD COUNTY'S COMMUNITY FOUNDATION INC
  • Who funds GARRISON FOREST SCHOOL INC
  • Who funds TRUSTEES OF DEERFIELD ACADEMY
  • Who funds METROPOLITAN MUSEUM OF ART
  • Who funds THE NEW CANAAN COUNTRY SCHOOL INCORPORATED
  • Who funds HOLE IN THE WALL GANG FUND INC
  • Who funds FAMILY CENTERS INC
  • Who funds HORIZONS INC
  • Who funds THE TRANSPORTATION ASSOCIATION OF GREENWICH

The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.

Fairfield County's Community Foundation IncCT13.4× affinity4 shared granteesties to 8 of 8Hover any node to trace its alignments.Compare side by side →

Open a dossier: Fairfield County's Community Foundation Inc · Ge Aerospace Foundation · Jpmorgan Chase Foundation · National Philanthropic Trust · The Bank of America Charitable Foundation Inc · Vanguard Charitable Endowment Program · American Online Giving Foundation Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile Foundation

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

On method. Every financial figure here is read directly from IRS e-file XML — your own 990/990-PF and the multi-year returns of the 56 grantees we resolved across every year we hold, several hundred filings in all (a different count from the grant rows on the cover, which are one fiscal year)— each linked to its source. Grantee achievements and outcomes are each organization’s own program-service reporting (Form 990, Part III); we read these as association with sustained funding — the foundation is one of several forces — suppress low-confidence name matches rather than guess, and say so where a figure rests on a single grant or filing. Not everything on this page is a filed figure, and the difference matters. Filed is what you reported on your 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. How we build these →

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

Source object · view filing

More from the funding graph