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New York · 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 FY2025(still arriving)
40
Grants FY2025
37
Organizations funded FY2024
11%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$3,000
Largest grant, FY2025
$50,000
Organizations funded a year
37 to 41
FY2021 to FY2024
States reached, FY2025
5
Total assets, FY2025
$4.0M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 11% of the organizations Ruth & Seymour Klein Foundation Inc funded were first-time grantees, receiving 3% of its grant dollars.

New vs renewed · share of each year

In FY2024, 97% of grant dollars renewed an existing relationship; $7k went to new ones.

50%100%’22’23’24
RenewedFirst-time

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

’22’23’24
PhilanthropyInternationalEducationArts & CultureHuman ServicesOther
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.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2025still arriving40$285k3%
FY202437$278k11%
FY202339$295k8%
FY202238$283k3%
FY202141$300kn/a
97% 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

Top grantees

Largest recipients by total granted, FY2021 to FY2025, and the share of each one’s budget the grants supplied at peak.

Show all 38 grantees
All grantees of Ruth & Seymour Klein Foundation Inc by total granted
GranteeTotal grantedYearsShare of their budget
Connecticut College$250,00050%
The President and Trustees of Colby College$250,00050%
Lehigh University$100,00050%
Wildlife Conservation Society$75,00050%
Greenwich Hospital$70,00050%
Camp Sunshine at Sebago Lake Inc$53,00050%
Federated Conservationists of Westchester County Inc$50,000518%
Museum of Modern Art$49,00050%
My Sisters Place Inc$48,00050%
The Musella Foundation for Brain Tumor Research and Information Inc$48,00052%
Friends of the Neuberger Museum of Art Inc$40,00032%
Metropolitan Museum of Art$40,00050%
The Picture House Regional Film Center Inc$39,00051%
New York Botanical Garden$25,00050%
The Summer Camp Inc$25,00051%
The Maritime Aquarium at Norwalk Inc$16,00050%
National Center for Learning Disabilities Inc$15,00050%
Family Services of Westchester Inc$15,00030%
Fresh Air Fund$14,00050%
The Pelham Education Foundation$10,00051%
Friends of the Port Chester - Rye Brook Public Library Inc$10,0005n/a
Westchester Children's Association Inc$8,00050%
Westchester Parks Foundation Inc$8,00040%
Nunataks Ltd D/B/A Greenburgh Nature Center$7,00040%
Wainwright House Inc$6,00050%
County Harvest Inc$5,00055%
Reach Prep Inc$5,00050%
Fund for the City of New York Inc$4,00020%
Masters School$4,00020%
New York Public Radio$4,00040%
Ideal-Spring International Foundation$3,0003n/a
Worldwide Friends Foundation$3,00010%
The One Love Foundation in Honor of Yeardley Love Inc$2,50010%
Macon Arts Alliance Inc$2,00020%
Junior League of Pelham Inc$2,00041%
Dynamic Forms Inc Dba Mark Degarmo Dance$2,00020%
The Transportation Association of Greenwich$1,00010%
Huguenot Memorial Church$301n/a

What it could do for these grantees

Plus 12 recipients with no EIN on record ($132k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Ruth & Seymour Klein Foundation Inc supplied at peak.

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

Tap a dot to name the grantee.

How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 35.

Nonprofits that may fit its grantmaking

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.

Compare Ruth & Seymour Klein Foundation Inc with peer funders

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.

About Ruth & Seymour Klein Foundation Inc

How much does Ruth & Seymour Klein Foundation Inc give?
Ruth & Seymour Klein Foundation Inc reported 40 grants totaling $284,500 in its FY2025 IRS filing. It funded between 37 and 41 organizations a year over FY2021 to FY2024.
What does Ruth & Seymour Klein Foundation Inc fund?
By grant dollars over FY2021 to FY2025, its largest causes are Education (45%), Arts & Culture (14%), Health (11%).
Who are Ruth & Seymour Klein Foundation Inc's largest grantees?
By total granted over FY2021 to FY2025: Connecticut College ($250k), The President and Trustees of Colby College ($250k), Lehigh University ($100k).
Does Ruth & Seymour Klein Foundation Inc fund new organizations?
In FY2024, 11% of the organizations it funded were first-time grantees.
Does Ruth & Seymour Klein Foundation Inc 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 Ruth & Seymour Klein Foundation Inc?
Its strongest co-funders, measured against what their size predicts, include Strypemonde Foundation, The Thomas and Agnes Carvel Foundation, The New York Community Trust.
Where is Ruth & Seymour Klein Foundation Inc based?
Ruth & Seymour Klein Foundation Inc is based in NY.

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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