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· 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 FY2025still arriving
6
Grants FY2025still arriving
3
States reached
$25k
Largest
01What it funds
0199% 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
02FY2025 · 6 grants

Where the money goes

Grants by size, and the largest recipients.

$25,000
Median grant
3
States reached
$63k
Total assets
Largest grants
RecipientAmount
BOSTON SYMPHONY ORCHESTRA INC$25,000
CORNERSTONE FAMILY PROGRAMS$25,000
SHELBURNE MUSEUM$25,000
MARKET STREET MISSION$25,000
BERKSHIRE BOTANICAL GARDEN$25,000
PRINCETON UNIVERSITY ART MUSEUM$15,000
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 (FY20–25, $109k) land where the poverty rate runs at 10%, against an area that typically sits at 10%. 46% of those dollars go to grantees based in above-average-need neighborhoods. Its grants spread fairly evenly across need levels.

area typical 10%CORNERSTONE FAMILY PROGRAMS: $25k → 4%Association to Benefit Children: $15k → 17%ASSOCIATION TO BENEFIT CHILDREN: $10k → 17%Plaid House: $4k → 4%PLAID HOUSE: $4k → 4%CORNERSTONE FAMILY PROGRAMS: $4k → 4%Cornerstone Family Programs: $4k → 4%Plaid House: $4k → 4%PLAID HOUSE: $4k → 4%Association to Benefit Children: $10k → 17%Plaid House: $4k → 4%Cornerstone Family Programs: $3k → 4%Association to Benefit Children: $10k → 17%Cornerstone Family Programs: $3k → 4%CORNERSTONE FAMILY PROGRAMS: $3k → 4%ASSOCIATION TO BENEFIT CHILDREN: $5k → 17%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.

Which US states its grants reach

VT
NY
MA
PA
NJ
CT
AZ
DC
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.

95%of every dollar goes to organizations it has funded before.
$1.1M · 37 repeat orgs$54k to everyone else

Grantees it renews have grown median revenue +51% since the first grant, against +14% for those funded once.

37 repeat relationships: 6 still active in FY2025, 31 since wound down.

How the two cohorts compare

Re-uppedFunded once

Organizations

37
9

Total granted

$1.1M
$54k

Median revenue growth · since first grant

+51%
+14%

Still filing today

73%
56%

New vs renewed · share of each year

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

50%100%’20’21’22’23’24’25
RenewedFirst-time

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

’20’21’22’23’24’25
Arts & CultureEducationEnvironmentHuman ServicesHealthEmploymentOther
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

  • SM
    SHELBURNE MUSEUM INC
    6× · 2020–2025 · $188k · revenue +246%
  • BS
    BOSTON SYMPHONY ORCHESTRA INC
    3× · 2021–2025 · $75k · revenue +30%
  • AT
    ASSOCIATION TO BENEFIT CHILDREN
    5× · 2020–2024 · $50k · revenue +22%

Funded once

  • PU
    Princeton University The Art Museum
    one grant, 2020 · $13k
  • The Trustees of Princeton University
    one grant, 2021 · $13k · revenue -34%
  • NY
    NEW YORK BOTANICAL GARDENgraduated
    one grant, 2020 · $8k · revenue +42%
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
Boston Architectural College

The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.

—
3
Institute for Advanced Study - Louis Bamberger & Mrs Felix Fuld Foundation

The institute for advanced study (the institute) is one of the world's leading centers for theoretical research and intellectual inquiry. see schedule o.

Science & Tech
4
Isabella Stewart Gardner Museum Inc

Organization's mission statement true to the ambitious vision of its founder and her spirit of creative risk-taking, the mission of the isabella stewart gardner museum is: - to bring to life and preserve the rich historic collection; - to…

Arts & Culture
5
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
6
The Newark Museum Association

Nmoa mission statement is: we welcome everyone with inclusive experiences that spark curiosity and foster community.

Arts & Culture
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
Manhattanville University

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

Education
9
Museum of Modern Art

The Museum of Modern Art is a private, non-profit institution chartered by the State of New York Department of Education in 1929 to foster public awareness of modern and contemporary art. (Continued in Schedule O)

Arts & Culture
10
Bard College

Bard college seeks to provide a challenging academic program and a supportive environment that fosters a collaborative interchange of ideas in the classroom as well as ambition to achieve excellence.

Education
11
Public Media Nj Inc

To bring quality public television programs and resources to communities throughout new jersey and its tri-state neighbors. its content, both on-air and online, aims to reflect the diverse

Arts & Culture
12
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.

—
How this is measured
The grantee most central to the portfolio’s shape is The New York Public Library Astor Lenox and Tilden Foundations; the most unlike its peers is Land Conservancy 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

33 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. 33 of the 46 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)
7
Early backer (in before they grew)
32/33
Grantees still filing
24/33
Grew since first funded

Where the money sits, by cause and then by grantee

Tanglewood Music Center: $92,500 · OtherTanglewood Music CenterPRINCETON UNIVERSITY ART MUSEUM: $60,000 · OtherPRINCETON UNIVERSITY ART MUSEUMIndividual grant recipient: $50,000 · OtherIndividual grant recipientMARKET STREET MISSION INC: $46,000 · OtherMARKET STREET MISSION INCTHE TRUSTEES OF THE NEW YORK SOCIETY LIBRARY: $29,000 · OtherTHE TRUSTEES OF THE NEW YORK SOCIETY LI…Planned Parenthood of GNNJ: $25,000 · OtherPlanned Parenthood of GNNJTHE MORGAN LIBRARY: $20,000 · OtherTHE PECK SCHOOL: $17,500 · OtherFoundation for Morristown Medical: $15,000 · OtherFRESH AIR FUND: $15,000 · Other+8 more: $49,464 · Other+8 moreSHELBURNE MUSEUM INC: $187,500 · Arts & CultureSHELBURNE MUSEUM INCBOSTON SYMPHONY ORCHESTRA INC: $75,000 · Arts & CultureBOSTON SYMPHONY ORCHESTRA INCMETROPOLITAN MUSEUM OF ART: $45,000 · Arts & CultureMETROPOLITAN MUSEUM OF ARTPARRHASIAN HERITAGE FOUNDATION: $15,000 · Arts & CultureSCHOOL OF AMERICAN BALLET INC: $15,000 · Arts & CultureWNET: $14,000 · Arts & CultureNEW YORK CITY BALLET INC: $13,000 · Arts & Culture+2 more: $7,250 · Arts & CultureASSOCIATION TO BENEFIT CHILDREN: $50,000 · Human ServicesASSOCIATION…CORNERSTONE FAMILY PROGRAMS: $41,000 · Human ServicesCORNERSTONE…PLAID HOUSE INC: $17,500 · Human ServicesPLAID HOUSE…JERSEY BATTERED WOMEN'S SERVICE INC: $15,000 · Human ServicesJERSEY BATT…ST MARK'S SCHOOL OF SOUTHBOROUGH INC: $64,500 · EducationST MARK'S…The Trustees of Princeton University: $12,500 · EducationThe Trust…HOBART AND WILLIAM SMITH COLLEGES: $7,500 · EducationHOBART AN…The New York Public Library Astor Lenox and Tilden Foundations: $6,000 · EducationThe New Y…The Pierpont Morgan Library: $5,000 · EducationPARKMONT SCHOOL: $4,000 · EducationBERKSHIRE GARDEN CENTER INC DBA BERKSHIRE BOTANICAL GARDEN INC: $50,000 · EnvironmentNEW JERSEY CONSERVATION FOUNDATION: $27,000 · EnvironmentNEW YORK BOTANICAL GARDEN: $7,500 · EnvironmentLAND CONSERVANCY INC: $4,000 · EnvironmentGreat Swamp Watershed Association: $3,750 · EnvironmentVISITING NURSE SERVICE OF NEW YORK: $44,000 · HealthFoundation for Morristown Medical Center: $15,000 · HealthBERKSHIRE MEDICAL CENTER INC: $12,500 · HealthJUBILEE JOBS INC: $20,000 · Employment
Other$419,464Arts & Culture$371,750Human Services$123,500Education$99,500Environment$92,250Health$71,500Employment$20,000

Each grantee by its size and the funder’s share of it; top left is load-bearing

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
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 SHELBURNE MUSEUM INC ↗
  • Who funds BOSTON SYMPHONY ORCHESTRA INC ↗
  • Who funds ST MARK'S SCHOOL OF SOUTHBOROUGH INC ↗
  • Who funds BERKSHIRE GARDEN CENTER INC DBA BERKSHIRE BOTANICAL GARDEN INC ↗
  • Who funds ASSOCIATION TO BENEFIT CHILDREN ↗
  • Who funds METROPOLITAN MUSEUM OF ART ↗
  • Who funds VISITING NURSE SERVICE OF NEW YORK ↗
  • Who funds CORNERSTONE FAMILY PROGRAMS ↗
  • Who funds THE TRUSTEES OF THE NEW YORK SOCIETY LIBRARY ↗
  • Who funds NEW JERSEY CONSERVATION FOUNDATION ↗
  • Who funds JUBILEE JOBS INC ↗
  • Who funds THE PECK SCHOOL ↗
  • Who funds PLAID HOUSE INC ↗
  • Who funds JERSEY BATTERED WOMEN'S SERVICE INC ↗
  • Who funds FRESH AIR FUND ↗
  • Who funds PARRHASIAN HERITAGE FOUNDATION ↗
  • Who funds Foundation for Morristown Medical Center ↗
  • Who funds SCHOOL OF AMERICAN BALLET INC ↗
  • Who funds WNET ↗
  • Who funds NEW YORK CITY BALLET INC ↗
  • Who funds THE RAPTOR TRUST ↗
  • Who funds BERKSHIRE MEDICAL CENTER INC ↗
  • Who funds The Trustees of Princeton University ↗
  • Who funds HOBART AND WILLIAM SMITH COLLEGES ↗
  • Who funds NEW YORK BOTANICAL GARDEN ↗
  • Who funds The New York Public Library Astor Lenox and Tilden Foundations ↗
  • Who funds The Pierpont Morgan Library ↗
  • Who funds HISTORIC HOUSE TRUST OF NEW YORK CITY INC ↗
  • Who funds PARKMONT SCHOOL ↗
  • Who funds LAND CONSERVANCY INC ↗

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.

How much its grantees rely on government

Each dot is one organization Frelinghuysen Foundation funds: left to right is the share of its income from government, bottom to top the share from Frelinghuysen Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 50%1%3%6%10%funder's share of their income ↑0%15%30%45%60%share of the org’s income from government →median 9%
  • Jersey Battered Women's Service Inc: 40% of income from government
  • The Trustees of Princeton University: 11% of income from government
  • Plaid House Inc: 9% of income from government
  • Shelburne Museum Inc: 9% of income from government
  • Berkshire Medical Center Inc: 4% of income from government
  • Cornerstone Family Programs: 3% of income from government
  • Boston Symphony Orchestra Inc: 0% of income from government
  • Berkshire Garden Center Inc Dba Berkshire Botanical Garden Inc: 0% of income from government
no gov moneyreceives it· size = income
5get no government money at all
5report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–60%
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 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.

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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