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· Private foundation

Ruth & Seymour Klein 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.

$285k
Granted FY2025still arriving
40
Grants FY2025still arriving
5
States reached
$50k
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, FY2021 to 2025.

Education$654kArts & Culture$202kHealth$152kRecreation & Sports$105kEnvironment$99kAnimals$75kHuman Services$63kCrime & Legal$38kOther$0
02FY2025 · 40 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k32 grants · $106k
  • $10k–50k6 grants · $79k
  • $50k–250k2 grants · $100k
$3,000
Median grant
5
States reached
$4.0M
Total assets
Largest grants
RecipientAmount
COLBY COLLEGE$50,000
CONNECTICUT COLLEGE$50,000
LEHIGH UNIVERSITY$20,000
WILDLIFE CONSERVATION SOCIETY$15,000
GREENWICH HOSPITAL$14,000
FRIENDS OF THE NEUBERGER MUSEUM$10,000
CAMP SUNSHINE$10,000
FEDERATED CONSERVATIONISTS OF WESTCHESTER COUNTY INC$10,000
MUSEUM OF MODERN ART$9,000
MUSELLA FOUNDATION$8,000
MY SISTER'S PLACE$8,000
METROPOLITAN MUSEUM OF ART$8,000
PACE SCHOOL OF LAW$7,000
CAMP VEGA FOUNDATION$6,000
THE SUMMER CAMP$5,000
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 (FY21–25, $15k) land where the poverty rate runs at 9%, 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.

area typical 10%TRANSPORTATION ASSOCIATION OF GREENWICH: $1k → 9%WESTCHESTER CHILDREN'S ASSOCIATION INC: $2k → 9%WESTCHESTER CHILDREN'S ASSOCIATION INC: $2k → 9%WESTCHESTER CHILDREN'S ASSOCIATION INC: $2k → 9%WESTCHESTER CHILDREN'S ASSOCIATION INC: $1k → 9%WESTCHESTER CHILDREN'S ASSOCIATION INC: $1k → 9%WAINWRIGHT HOUSE: $2k → 9%WAINWRIGHT HOUSE: $1k → 9%WAINWRIGHT HOUSE: $1k → 9%WAINWRIGHT HOUSE: $1k → 9%WAINWRIGHT HOUSE: $1k → 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.
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.

99%of every dollar goes to organizations it has funded before.
$1.4M · 44 repeat orgs$12k to everyone else

Grantees it renews have grown median revenue +27% since the first grant, against 0% for those funded once.

44 repeat relationships: 39 still active in FY2025, 5 since wound down; 1 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

44
5

Total granted

$1.4M
$8k

Median revenue growth · since first grant

+27%
0%

Still filing today

73%
60%

New vs renewed · share of each year

In FY2025, 99% of grant dollars renewed an existing relationship; $4k went to new ones.

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

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

’21’22’23’24’25
Arts & CultureEducationHuman ServicesHealthRecreation & SportsEnvironmentOther
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

  • CC
    CONNECTICUT COLLEGE
    5× · 2021–2025 · $250k · revenue +9%
  • The President and Trustees of Colby College
    5× · 2021–2025 · $250k · revenue +22%
  • LU
    LEHIGH UNIVERSITY
    5× · 2021–2025 · $100k · revenue +42%

Funded once

  • WF
    Worldwide Friends Foundation
    one grant, 2024 · $3k · revenue 0%
  • TO
    THE ONE LOVE FOUNDATION IN HONOR OF YEARDLEY LOVE INC
    one grant, 2023 · $3k · revenue -75%
  • WC
    WESTCHESTER COUNTY BAR INSTITUTE
    one grant, 2021 · $1k
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
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
Manhattanville University

To educate students to be ethical and socially responsible leaders in a global community.

Education
3
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
4
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
5
New Museum of Contemporary Art

A center for exhibitions, information, and documentation about living artists since 1977, which continues to be a place of experimentation and a hub of new art and new ideas.

Arts & Culture
6
New York University

Nyu is a private university with approximately 60,000 matriculating students in 20 schools and institutes. nyu's primary missions are education, research and scholarship, and patient care.

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
New York Genome Center Inc

Operate a state-of-the-art, world-class genomic research center that creates and uses advanced genomics to understand the genetic basis of disease. for more information, see schedule o.

Health
9
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
10
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.

—
11
Manhattan University

Manhattan university is an independent catholic instituion of higher learning that embraces qualified men and women of all faiths, cultures, and traditions. the mission of manhattan university is to provide a contemporary, person-centered…

Education
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 Friends of the Neuberger Museum of Art Inc; the most unlike its peers is Federated Conservationists of Westchester County Inc. 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

35 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. 35 of the 50 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)
5
Early backer (in before they grew)
35/35
Grantees still filing
27/35
Grew since first funded

Where the money sits, by cause and then by grantee

CONNECTICUT COLLEGE: $250,000 · EducationCONNECTICUT COLLEGEThe President and Trustees of Colby College: $250,000 · EducationThe President and Trustees of Colby CollegeLEHIGH UNIVERSITY: $100,000 · EducationLEHIGH UNIVERSITY+3 more: $17,500 · EducationFEDERATED CONSERVATIONISTS OF WESTCHESTER COUNTY INC: $50,000 · OtherFEDERATED CONSERVATIONISTS…My Sisters Place Inc: $48,000 · OtherMy Sisters Place IncPACE SCHOOL OF LAW: $35,000 · OtherPACE SCHOOL OF LAWCAMP VEGA FOUNDATION: $30,000 · OtherCAMP VEGA FOUNDATIONTHE SUMMER CAMP INC: $25,000 · OtherTHE SUMMER CAMP INCLOOMIS CHAFFE SCHOOL: $19,000 · OtherLOOMIS CHAFFE SCHOOLNATIONAL CENTER FOR LEARNING DISABILITIES INC: $15,000 · OtherFAMILY SERVICES OF WESTCHESTER INC: $15,000 · OtherPELHAM PUBLIC LIBRARY: $13,000 · OtherCT FUND FOR THE ENVIRONMENT - SAVE THE SOUND: $12,000 · Other+19 more: $76,530 · Other+19 moreMuseum of Modern Art: $49,000 · Arts & CultureMuseum of Moder…FRIENDS OF THE NEUBERGER MUSEUM OF ART INC: $40,000 · Arts & CultureFRIENDS OF THE …METROPOLITAN MUSEUM OF ART: $40,000 · Arts & CultureMETROPOLITAN MU…THE PICTURE HOUSE REGIONAL FILM CENTER INC: $39,000 · Arts & CultureTHE PICTURE HOU…THE MARITIME AQUARIUM AT NORWALK INC: $16,000 · Arts & CultureTHE MARITIME AQ…+3 more: $8,000 · Arts & CultureGREENWICH HOSPITAL: $70,000 · HealthGREENWICH…THE MUSELLA FOUNDATION FOR BRAIN TUMOR RESEARCH AND INFORMATION INC: $48,000 · HealthTHE MUSEL…Wildlife Conservation Society: $75,000 · AnimalsCAMP SUNSHINE AT SEBAGO LAKE INC: $53,000 · Recreation & SportsFRESH AIR FUND: $14,000 · Recreation & SportsNEW YORK BOTANICAL GARDEN: $25,000 · EnvironmentNUNATAKS LTD D/B/A GREENBURGH NATURE CENTER: $7,000 · Environment
Education$617,500Other$338,530Arts & Culture$192,000Health$118,000Animals$75,000Recreation & Sports$67,000Environment$32,000

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 budgetCONNECTICUT COLLEGE: $250,000 over 5y, 0.0% of budgetThe President and Trustees of Colby College: $250,000 over 5y, 0.0% of budgetLEHIGH UNIVERSITY: $100,000 over 5y, 0.0% of budgetWildlife Conservation Society: $75,000 over 5y, 0.0% of budgetGREENWICH HOSPITAL: $70,000 over 5y, 0.0% of budgetCAMP SUNSHINE AT SEBAGO LAKE INC: $53,000 over 5y, 0.4% of budgetFEDERATED CONSERVATIONISTS OF WESTCHESTER COUNTY INC: $50,000 over 5y, 18% of budgetMuseum of Modern Art: $49,000 over 5y, 0.0% of budgetMy Sisters Place Inc: $48,000 over 5y, 0.1% of budgetTHE MUSELLA FOUNDATION FOR BRAIN TUMOR RESEARCH AND INFORMATION INC: $48,000 over 5y, 2.1% of budgetFRIENDS OF THE NEUBERGER MUSEUM OF ART INC: $40,000 over 3y, 1.8% of budgetMETROPOLITAN MUSEUM OF ART: $40,000 over 5y, 0.0% of budgetTHE PICTURE HOUSE REGIONAL FILM CENTER INC: $39,000 over 5y, 0.7% of budgetNEW YORK BOTANICAL GARDEN: $25,000 over 5y, 0.0% of budgetTHE SUMMER CAMP INC: $25,000 over 5y, 0.7% of budgetTHE MARITIME AQUARIUM AT NORWALK INC: $16,000 over 5y, 0.0% of budgetNATIONAL CENTER FOR LEARNING DISABILITIES INC: $15,000 over 5y, 0.2% of budgetFAMILY SERVICES OF WESTCHESTER INC: $15,000 over 3y, 0.0% of budgetFRESH AIR FUND: $14,000 over 5y, 0.0% of budgetTHE PELHAM EDUCATION FOUNDATION: $10,000 over 5y, 1.1% of budgetWESTCHESTER CHILDREN'S ASSOCIATION INC: $8,000 over 5y, 0.4% of budgetWESTCHESTER PARKS FOUNDATION INC: $8,000 over 4y, 0.1% of budgetNUNATAKS LTD D/B/A GREENBURGH NATURE CENTER: $7,000 over 4y, 0.1% of budgetWAINWRIGHT HOUSE INC: $6,000 over 5y, 0.4% of budgetCOUNTY HARVEST INC: $5,000 over 5y, 4.6% of budgetREACH PREP INC: $5,000 over 5y, 0.1% of budgetFUND FOR THE CITY OF NEW YORK INC: $4,000 over 2y, 0.0% of budgetMASTERS SCHOOL: $4,000 over 2y, 0.0% of budgetNEW YORK PUBLIC RADIO: $4,000 over 4y, 0.0% of budgetWorldwide Friends Foundation: $3,000 over 1y, 0.0% of budgetTHE ONE LOVE FOUNDATION IN HONOR OF YEARDLEY LOVE INC: $2,500 over 1y, 0.0% of budgetMACON ARTS ALLIANCE INC: $2,000 over 2y, 0.2% of budgetJUNIOR LEAGUE OF PELHAM INC: $2,000 over 4y, 1.4% of budgetDYNAMIC FORMS INC DBA MARK DEGARMO DANCE: $2,000 over 2y, 0.3% of budgetTHE TRANSPORTATION ASSOCIATION OF GREENWICH: $1,000 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 CONNECTICUT COLLEGE ↗
  • Who funds The President and Trustees of Colby College ↗
  • Who funds LEHIGH UNIVERSITY ↗
  • Who funds Wildlife Conservation Society ↗
  • Who funds GREENWICH HOSPITAL ↗
  • Who funds CAMP SUNSHINE AT SEBAGO LAKE INC ↗
  • Who funds FEDERATED CONSERVATIONISTS OF WESTCHESTER COUNTY INC ↗
  • Who funds Museum of Modern Art ↗
  • Who funds My Sisters Place Inc ↗
  • Who funds THE MUSELLA FOUNDATION FOR BRAIN TUMOR RESEARCH AND INFORMATION INC ↗
  • Who funds FRIENDS OF THE NEUBERGER MUSEUM OF ART INC ↗
  • Who funds METROPOLITAN MUSEUM OF ART ↗
  • Who funds THE PICTURE HOUSE REGIONAL FILM CENTER INC ↗
  • Who funds NEW YORK BOTANICAL GARDEN ↗
  • Who funds THE SUMMER CAMP INC ↗
  • Who funds THE MARITIME AQUARIUM AT NORWALK INC ↗
  • Who funds NATIONAL CENTER FOR LEARNING DISABILITIES INC ↗
  • Who funds FAMILY SERVICES OF WESTCHESTER INC ↗
  • Who funds FRESH AIR FUND ↗
  • Who funds THE PELHAM EDUCATION FOUNDATION ↗
  • Who funds WESTCHESTER CHILDREN'S ASSOCIATION INC ↗
  • Who funds WESTCHESTER PARKS FOUNDATION INC ↗
  • Who funds NUNATAKS LTD D/B/A GREENBURGH NATURE CENTER ↗
  • Who funds WAINWRIGHT HOUSE INC ↗
  • Who funds COUNTY HARVEST INC ↗
  • Who funds REACH PREP INC ↗
  • Who funds FUND FOR THE CITY OF NEW YORK INC ↗
  • Who funds MASTERS SCHOOL ↗
  • Who funds NEW YORK PUBLIC RADIO ↗

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.

Strypemonde FoundationNY15.7× affinity5 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Strypemonde Foundation · The Thomas and Agnes Carvel Foundation · The New York Community Trust · Pcsb Community Foundation · Jewish Communal Fund · American Express Foundation · Jpmorgan Chase Foundation · The Pfizer Foundation Inc · National Philanthropic Trust · The Bank of America Charitable Foundation Inc · Vanguard Charitable Endowment Program · Morgan Stanley Global Impact Funding Trust 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 Ruth & Seymour Klein Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from Ruth & Seymour Klein Foundation Inc. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 30%1%5%11%20%funder's share of their income ↑0%19%38%56%75%share of the org’s income from government →median 0%
  • The Maritime Aquarium at Norwalk Inc: 5% of income from government
  • Connecticut College: 0% of income from government
  • Greenwich Hospital: 0% of income from government
no gov moneyreceives it· size = income
3get 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 · 0–75%
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 Ruth & Seymour Klein Foundation Inc?

Find your warmest path to Ruth & Seymour Klein 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 50 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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