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New York · Private foundation

The Klingenstein-Martell Foundation Fka the Sarah D Klingenstein 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.

$4.4M
Granted FY2025(still arriving)
19
Grants FY2025
12
Organizations funded FY2024
33%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$170,000
Largest grant, FY2025
$1,000,000
Organizations funded a year
6 to 12
FY2018 to FY2024
States reached, FY2025
6
Total assets, FY2025
$77M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 33% of the organizations The Klingenstein-Martell Foundation Fka the Sarah D Klingenstein Foundation funded were first-time grantees, receiving 15% of its grant dollars.

New vs renewed · share of each year

In FY2024, 85% of grant dollars renewed an existing relationship; $335k went to new ones.

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

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

’18’19’20’21’22’23’24
EducationArts & CultureHealthEnvironmentYouth DevelopmentHuman 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 arriving19$4.4M53%
FY202412$2.2M33%
FY202312$1.3M50%
FY202210$1.4M40%
FY20219$358k56%
FY202012$329k58%
FY201910$170k70%
FY20186$172k67%
99% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Education$5.2MArts & Culture$3.8MPhilanthropy$644kEnvironment$280kHealth$262kYouth Development$65kCommunity Improvement$52kFood & Nutrition$40kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

ME
NY
MA
CT
CA
NE
MD
DC
GA

Top grantees

Largest recipients by total granted, FY2017 to FY2025, and the share of each one’s budget the grants supplied at peak.

Show all 39 grantees
All grantees of The Klingenstein-Martell Foundation Fka the Sarah D Klingenstein Foundation by total granted
GranteeTotal grantedYearsShare of their budget
New York Historical Society$1,167,66732%
Upper West Side Cinema Center Inc$1,000,0001n/a
City Lore Inc$550,00027%
Emma Willard School$527,00051%
New York Shakespeare Festival$460,00080%
Emerson College$430,00020%
Stony Brook Foundation Inc$355,00030%
The Town School Inc$277,96161%
Media Matters for America$200,0001n/a
Downtown Community Television Center Inc$200,00014%
The Film Collaborative Inc$170,0001n/a
Worldwide Friends Foundation Inc$130,0001n/a
The New York Public Library Astor Lenox and Tilden Foundations$120,00030%
New Normal Rep Inc$115,000281%
7 Lakes Alliance Inc$100,00023%
Amazon Frontlines$100,0001n/a
Bay Street Theatre Festival Inc$65,0001n/a
Yale University$62,5001n/a
Timanous Foundation$50,00025%
God's Love We Deliver Inc$40,00010%
Natural History Museum of the Adirondacks$40,00040%
Robert Louis Stevenson School$40,00020%
Dwight School Foundation$35,00021%
Yale University$31,2501n/a
De la Salle Academy$25,00010%
El Education Inc$25,00010%
Fund for the Aged Inc$25,00010%
The Grateful Film Fund$20,0001n/a
The Klingenstein Third Generation Foundation$16,00015%
Literacy Partners Inc$15,00011%
The Center for Grieving Children$15,00011%
Guernica Inc$11,000210%
Archipelago Books Inc$10,00012%
Beth Israel Congregation$10,0001n/a
The Foundation for Gender-Specific Medicine Inc$7,50011%
Teachers College Columbia University$5,00010%
Mabel Wadsworth Women's Health Ctr$4,00010%
Northern Light Health Foundation$4,00010%
Young Men's Christian Association Boothbay Region$4,00010%

What it could do for these grantees

Plus 14 recipients with no EIN on record ($4.0M), not named here.

Where it is load-bearing

The Klingenstein-Martell Foundation Fka the Sarah D Klingenstein Foundation supplied at least a quarter of the budget for 1 of its grantees at some point. The chart plots its 29 largest grantees; load-bearing ones sit top left.

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetNew York Historical Society: $1,167,667 over 3y, 2.1% of budgetCity Lore Inc: $550,000 over 2y, 6.6% of budgetEmma Willard School: $527,000 over 5y, 0.7% of budgetNew York Shakespeare Festival: $460,000 over 8y, 0.3% of budgetEmerson College: $430,000 over 2y, 0.1% of budgetStony Brook Foundation Inc: $355,000 over 3y, 0.2% of budgetThe Town School Inc: $277,961 over 6y, 0.5% of budgetDowntown Community Television Center Inc: $200,000 over 1y, 4.0% of budgetThe New York Public Library Astor Lenox and Tilden Foundations: $120,000 over 3y, 0.0% of budgetNew Normal Rep Inc: $115,000 over 2y, 81% of budget7 Lakes Alliance Inc: $100,000 over 2y, 3.0% of budgetTimanous Foundation: $50,000 over 2y, 4.5% of budgetGod's Love We Deliver Inc: $40,000 over 1y, 0.1% of budgetNatural History Museum of the Adirondacks: $40,000 over 4y, 0.3% of budgetRobert Louis Stevenson School: $40,000 over 2y, 0.3% of budgetDwight School Foundation: $35,000 over 2y, 0.9% of budgetDe la Salle Academy: $25,000 over 1y, 0.3% of budgetEl Education Inc: $25,000 over 1y, 0.1% of budgetFund for the Aged Inc: $25,000 over 1y, 0.3% of budgetThe Klingenstein Third Generation Foundation: $16,000 over 1y, 4.9% of budgetLiteracy Partners Inc: $15,000 over 1y, 0.6% of budgetThe Center for Grieving Children: $15,000 over 1y, 1.1% of budgetGuernica Inc: $11,000 over 2y, 10% of budgetArchipelago Books Inc: $10,000 over 1y, 1.6% of budgetThe Foundation for Gender-Specific Medicine Inc: $7,500 over 1y, 0.7% of budgetTeachers College Columbia University: $5,000 over 1y, 0.0% of budgetMabel Wadsworth Women's Health Ctr: $4,000 over 1y, 0.4% of budgetNorthern Light Health Foundation: $4,000 over 1y, 0.0% of budgetYoung Men's Christian Association Boothbay Region: $4,000 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 29.

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.

The Habe FoundationNY22.1× affinity8 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Habe Foundation · John & Patricia Klingenstein Fund · The Goldman Sachs Charitable Gift Fund · Jewish Communal Fund · The New York Community Trust · Thomas D Klingenstein Fund · Maine Community Foundation Inc · The Ayco Charitable Foundation · National Philanthropic Trust · Vanguard Charitable Endowment Program · American Endowment Foundation · The Pfizer 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.

Compare The Klingenstein-Martell Foundation Fka the Sarah D Klingenstein Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to The Klingenstein-Martell Foundation Fka the Sarah D Klingenstein Foundation?

Find your warmest path to The Klingenstein-Martell Foundation Fka the Sarah D Klingenstein 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.

About The Klingenstein-Martell Foundation Fka the Sarah D Klingenstein Foundation

How much does The Klingenstein-Martell Foundation Fka the Sarah D Klingenstein Foundation give?
The Klingenstein-Martell Foundation Fka the Sarah D Klingenstein Foundation reported 19 grants totaling $4,368,338 in its FY2025 IRS filing. It funded between 6 and 12 organizations a year over FY2018 to FY2024.
What does The Klingenstein-Martell Foundation Fka the Sarah D Klingenstein Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Education (50%), Arts & Culture (37%), Philanthropy (6%).
Who are The Klingenstein-Martell Foundation Fka the Sarah D Klingenstein Foundation's largest grantees?
By total granted over FY2017 to FY2025: New York Historical Society ($1.2M), Upper West Side Cinema Center Inc ($1.0M), City Lore Inc ($550k).
Does The Klingenstein-Martell Foundation Fka the Sarah D Klingenstein Foundation fund new organizations?
In FY2024, 33% of the organizations it funded were first-time grantees.
Does The Klingenstein-Martell Foundation Fka the Sarah D Klingenstein Foundation 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 The Klingenstein-Martell Foundation Fka the Sarah D Klingenstein Foundation?
Its strongest co-funders, measured against what their size predicts, include The Habe Foundation, John & Patricia Klingenstein Fund, The Goldman Sachs Charitable Gift Fund.
Where is The Klingenstein-Martell Foundation Fka the Sarah D Klingenstein Foundation based?
The Klingenstein-Martell Foundation Fka the Sarah D Klingenstein Foundation 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 53 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 Klingenstein-Martell Foundation Fka the Sarah D Klingenstein’s filings →

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