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New York · Private foundation

Frelinghuysen 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.

$140k
Granted FY2025(still arriving)
6
Grants FY2025
26
Organizations funded FY2024
8%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$25,000
Largest grant, FY2025
$25,000
Organizations funded a year
26 to 40
FY2020 to FY2024
States reached, FY2025
3
Total assets, FY2025
$63k
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 8% of the organizations Frelinghuysen Foundation funded were first-time grantees, receiving 5% of its grant dollars.

New vs renewed · share of each year

In FY2024, 95% of grant dollars renewed an existing relationship; $6k went to new ones.

50%100%’21’22’23’24
RenewedFirst-time

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

’21’22’23’24
EducationArts & CultureOther
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 arriving6$140k0%
FY202426$130k8%
FY202330$178k0%
FY202233$230k3%
FY202134$228k9%
FY202040$293kn/a
99% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2020 to 2025.

Arts & Culture$577kEducation$136kHuman Services$124kHealth$112kEnvironment$92kReligion$48kEmployment$20kRecreation & Sports$15kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

VT
NY
MA
PA
NJ
CT
AZ
DC

Top grantees

Largest recipients by total granted, FY2020 to FY2025, and the share of each one’s budget the grants supplied at peak.

Show all 35 grantees

What it could do for these grantees

Plus 11 recipients with no EIN on record ($295k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Frelinghuysen Foundation supplied at peak.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetShelburne Museum Inc: $187,500 over 6y, 0.7% of budgetBoston Symphony Orchestra Inc: $75,000 over 3y, 0.0% of budgetSt Mark's School of Southborough Inc: $64,500 over 5y, 0.1% of budgetBerkshire Garden Center Inc Dba Berkshire Botanical Garden Inc: $50,000 over 6y, 0.2% of budgetAssociation to Benefit Children: $50,000 over 5y, 0.1% of budgetMetropolitan Museum of Art: $45,000 over 5y, 0.0% of budgetVisiting Nurse Service of New York: $44,000 over 5y, 0.0% of budgetCornerstone Family Programs: $41,000 over 6y, 0.1% of budgetThe Trustees of the New York Society Library: $29,000 over 5y, 0.2% of budgetNew Jersey Conservation Foundation: $27,000 over 5y, 0.1% of budgetJubilee Jobs Inc: $20,000 over 5y, 0.4% of budgetThe Peck School: $17,500 over 4y, 0.1% of budgetPlaid House Inc: $17,500 over 5y, 0.3% of budgetJersey Battered Women's Service Inc: $15,000 over 5y, 0.1% of budgetFresh Air Fund: $15,000 over 5y, 0.0% of budgetParrhasian Heritage Foundation: $15,000 over 2y, 10% of budgetFoundation for Morristown Medical Center: $15,000 over 2y, 0.0% of budgetSchool of American Ballet Inc: $15,000 over 5y, 0.0% of budgetWnet: $14,000 over 5y, 0.0% of budgetNew York City Ballet Inc: $13,000 over 3y, 0.0% of budgetThe Raptor Trust: $12,500 over 5y, 0.2% of budgetBerkshire Medical Center Inc: $12,500 over 5y, 0.0% of budgetThe Trustees of Princeton University: $12,500 over 1y, 0.0% of budgetHobart and William Smith Colleges: $7,500 over 3y, 0.0% of budgetNew York Botanical Garden: $7,500 over 1y, 0.0% of budgetThe New York Public Library Astor Lenox and Tilden Foundations: $6,000 over 1y, 0.0% of budgetThe Pierpont Morgan Library: $5,000 over 1y, 0.0% of budgetHistoric House Trust of New York City Inc: $5,000 over 4y, 0.3% of budgetParkmont School: $4,000 over 4y, 0.0% of budgetLand Conservancy Inc: $4,000 over 4y, 1.1% of budgetGreat Swamp Watershed Association: $3,750 over 5y, 0.1% of budgetForman School Inc: $2,800 over 1y, 0.0% of budgetBrandywine Conservancy & Museum of Art: $2,250 over 2y, 0.0% 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 33.

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 New York Community TrustNY14.9× affinity5 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The New York Community Trust · Fm Kirby Foundation Inc · The Hyde and Watson Foundation · Jewish Communal Fund · Community Foundation of New Jersey · American Endowment Foundation · National Philanthropic Trust · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · The Bank of America Charitable Foundation Inc · Vanguard Charitable Endowment Program · The Blackbaud Giving Fund · Charities Aid Foundation America

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 Frelinghuysen Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Frelinghuysen Foundation?

Find your warmest path to Frelinghuysen 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 Frelinghuysen Foundation

How much does Frelinghuysen Foundation give?
Frelinghuysen Foundation reported 6 grants totaling $140,000 in its FY2025 IRS filing. It funded between 26 and 40 organizations a year over FY2020 to FY2024.
What does Frelinghuysen Foundation fund?
By grant dollars over FY2020 to FY2025, its largest causes are Arts & Culture (48%), Education (11%), Human Services (10%).
Who are Frelinghuysen Foundation's largest grantees?
By total granted over FY2020 to FY2025: Shelburne Museum Inc ($188k), Boston Symphony Orchestra Inc ($75k), St Mark's School of Southborough Inc ($65k).
Does Frelinghuysen Foundation fund new organizations?
In FY2024, 8% of the organizations it funded were first-time grantees.
Does Frelinghuysen 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 Frelinghuysen Foundation?
Its strongest co-funders, measured against what their size predicts, include The New York Community Trust, Fm Kirby Foundation Inc, The Hyde and Watson Foundation.
Where is Frelinghuysen Foundation based?
Frelinghuysen 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 46 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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