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The Claire Friedlander Family Foundation at a glance

· Private foundation

The Claire Friedlander Family 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.

$1.3M
Granted FY2025still arriving
51
Grants FY2025still arriving
—
States reached
$35k
Largest
01What it fundsRead
02Its granteesRead
03Its fieldRead
04Through PlinthRead
01What it funds
0194% classified

What it funded, over time

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

Philanthropy$3.5MHealth$915kArts & Culture$746kEducation$618kScience & Tech$458kHuman Services$280kInternational$131kYouth Development$130kOther$0
02FY2025 · 51 grants

Where the money goes

Grants by size, and the largest recipients.

How this is measured
The 51 grants below total $688,000, the rows itemized in this filing. The $1,273,000 headline is the total grant expense on the return; the other $585,000 is giving the schedule does not break out (grants under the $5,000 itemization floor, grants to individuals, grants on other schedules). Every figure below describes the itemized rows only.

By grant size · FY2025

  • Under $10k12 grants · $73k
  • $10k–50k39 grants · $616k
$10,000
Median grant
—
States reached
$13M
Total assets
Largest grants
RecipientAmount
Huntington Hospital$35,000
HMTC$35,000
Dante$30,000
The Netherland-American Fd (Anne Frank House )$30,000
LIU Tilles Center$25,000
NY Police & Fire Widows and Children's Benefit Fund$25,000
LIU Tilles Center$25,000
LIMEHOF$25,000
AJC$20,000
Solve ME /CFS Initiative$20,000
UJF 3 Square$20,000
Alpha Omega Fd (Holocaust Survivor Program)$18,000
St Patricks School$15,000
MHA$15,000
CMM Cares$15,000
02Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

59%of every dollar goes to organizations it has funded before.
$2.0M · 41 repeat orgs$1.4M to everyone else

Grantees it renews have grown median revenue +13% since the first grant, against 0% for those funded once.

41 repeat relationships: 26 still active in FY2025, 15 since wound down; 13 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

41
121

Total granted

$2.0M
$1.3M

Median revenue growth · since first grant

+13%
0%

Still filing today

95%
35%

New vs renewed · share of each year

In FY2025, 78% of grant dollars renewed an existing relationship; $148k went to new ones.

50%100%’19’22’23’24’25
RenewedFirst-time

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

’19’22’23’24’25
Arts & CultureHealthEducationPhilanthropyInternationalHuman 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.

Backed again, and grew

  • TH
    THE HOLOCAUST MEMORIAL AND TOLERANCE CENTER OF NASSAU COUNTY
    4× · 2022–2025 · $220k · revenue +118%
  • CS
    COLD SPRING HARBOR LABORATORY
    3× · 2022–2024 · $200k · revenue +12%
  • HH
    Huntington Hospital Association
    4× · 2022–2025 · $145k · revenue +24%

Funded once

  • AO
    Alpha Omega Fraternity (Holocaust Survivors progra
    one grant, 2019 · $54k
  • CH
    Chaminade HS (Bloomberg Lab)
    one grant, 2019 · $50k
  • FO
    Friends of Science East (Tesla Science Center)
    one grant, 2019 · $50k
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.

03Its 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
North Shore University Hospital

North shore university hospital is part of northwell health ("northwell"), which strives to improve the health of the communities it serves and is committed to providing the highest quality clinical care; educating the current and future…

Health
2
Long Island Jewish Medical Center

Long island jewish medical center is part of the northwell health ("northwell"), which strives to improve the health of the communities it serves and is committed to providing the highest quality clinical care; educating the current and…

Health
3
Staten Island University Hospital

Staten island university hospital is an affiliate within northwell health, inc. ("northwell"), which strives to improve the health of the communities it serves and is committed to providing the highest quality clinical care; educating the…

Health
4
Neurology Associates of Stony Brook University Faculty Practice Corp

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
5
South Shore University Hospital

South shore university hospital is part of northwell health ("northwell"), which strives to improve the health of the communities it serves and is committed to providing the highest quality clinical care; educating the current and future…

Health
6
Staten Island University Hospital Foundation

The mission of staten island university hospital's foundation is to achieve philanthropic relationships for support and endowment, providing highest quality care, services and state of the art equipment. philanthropy has played an…

Health
7
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
8
Long Island Community Hospital At Nyu Langone Health

The goals and objectives of the corporation are as follows:(a) to operate and maintain a nonsectarian, general hospital at one or more locations for the furnishing of inpatient, ambulatory, restorative, preventative and emergency medical…

—
9
Northwell Health Foundation

Northwell health foundation inc. is dedicated toward helping donors, patients, and leaders link their vision and philanthropic support toward helping the underserved and uninsured, advancing the latest frontiers in medical technology and…

Health
10
Lenox Hill Hospital

Lenox hill hospital is part of northwell health ("northwell"), which strives to improve the health of the communities it serves and is committed to providing the highest quality clinical care; educating the current and future generations…

Health
11
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
12
Stony Brook Surgical Associates University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
How this is measured
The grantee most central to the portfolio’s shape is The Spirit of Huntington Inc; the most unlike its peers is Crans Foresight Analysis Consensus. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
03the grantee network

96 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. 96 of the 178 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.

1
Load-bearing (≥25% of a budget)
12
Early backer (in before they grew)
95/96
Grantees still filing
53/96
Grew since first funded

Where the money sits, by cause and then by grantee

THE HOLOCAUST MEMORIAL AND TOLERANCE CENTER OF NASSAU COUNTY: $220,000 · OtherTHE HOLOCAUST MEMORIAL AND TOLERANCE CENTER OF NASSAU COUNTYLONG ISLAND UNIVERSITY: $172,500 · OtherLONG ISLAND UNIVERSITYUNITED JEWISH FEDERATION STAMFORD NEW CANAAN DARIEN INC: $70,000 · Other+119 more: $1,485,025 · Other+119 moreHuntington Hospital Association: $145,000 · HealthHuntington H…ALPHA OMEGA FOUNDATION INC: $64,000 · HealthALPHA OMEGA …The Marty Lyons Foundation Inc: $35,000 · HealthThe Marty Ly…BREAKTHROUGH T1D: $27,500 · HealthBREAKTHROUGH…NAMI QueensNassau Inc: $25,000 · HealthNAMI QueensN…Long Island Alzheimers and Dementia Center Inc: $25,000 · HealthLong Island …DIABETES RESEARCH INSTITUTE FOUNDATION INC: $20,000 · HealthMAN CAVE HEALTH INC: $15,000 · Health+5 more: $42,500 · Health+5 moreFRIENDS OF SCIENCE EAST INC: $80,000 · Arts & CultureFRIENDS OF …LONG ISLAND MUSIC AND ENTERTAINMENT HALL: $60,000 · Arts & CultureLONG ISLAND…THEATRE FOR A NEW AUDIENCE INC: $32,500 · Arts & CultureTHEATRE FOR…HUNTINGTON HISTORICAL SOCIETY: $30,000 · Arts & CultureHUNTINGTON …Nassau County Museum of Art: $30,000 · Arts & CultureNassau Coun…Huntington Ballet Theatre: $30,000 · Arts & CultureHuntington …The Norwalk Symphony Society Inc: $25,000 · Arts & CultureThe Norwalk…SUFFOLK COUNTY VANDERBILT MUSEUM: $22,500 · Arts & CultureSUFFOLK COU…HECKSCHER MUSEUM: $15,000 · Arts & Culture+6 more: $44,500 · Arts & Culture+6 moreSTONY BROOK FOUNDATION INC: $55,000 · EducationMOLLOY UNIVERSITY: $40,000 · EducationHARBOR COUNTRY DAY SCHOOL: $27,500 · EducationCHAMINADE DEVELOPMENT FUND INC: $20,000 · EducationTemple University - Of The Commonwealth System of Higher Education: $15,000 · EducationASCENT FUNDING ORGANIZATION INC: $15,000 · EducationASCENTA SCHOOL FOR INDIVIDUALS WITH AUTISM: $15,000 · EducationGEORGETOWN UNIVERSITY: $10,000 · EducationPresident and Fellows of Harvard College: $10,000 · EducationUniversity of Notre Dame du Lac: $10,000 · Education+2 more: $12,500 · EducationSTRATA FOUNDATION INC: $75,000 · PhilanthropyDANTE FOUNDATION OF NASSAU COUNTY INC: $37,500 · PhilanthropyTHE IMAGINE AWARDS INC: $30,000 · PhilanthropyHENRY SCHEIN CARES FOUNDATION INC: $28,000 · PhilanthropyGURWIN JEWISH GERIATRIC FOUNDATION INC: $10,000 · PhilanthropyCLC FOUNDATION INC: $10,000 · PhilanthropyLIGHT OF LI INC: $10,000 · PhilanthropyTOMORROWS HOPE FOUNDATION II INC: $7,500 · Philanthropy+1 more: $5,000 · PhilanthropyCOLD SPRING HARBOR LABORATORY: $200,000 · Science & TechAMERICAN FRIENDS OF HEBREW UNIVERSITY INC: $45,000 · InternationalMIRACLE CORNERS OF THE WORLD INC: $30,000 · InternationalPARDES INSTITUTE OF JEWISH STUDIES NORTH AMERICA INC: $30,000 · InternationalTHE NETHERLAND-AMERICA FOUNDATION INC: $30,000 · InternationalAMERICAN FRIENDS OF SHALVA ISRAEL INC: $25,000 · International+1 more: $5,000 · International
Other$1,947,525Health$399,000Arts & Culture$369,500Education$230,000Philanthropy$213,000Science & Tech$200,000International$165,000

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 budgetTHE HOLOCAUST MEMORIAL AND TOLERANCE CENTER OF NASSAU COUNTY: $220,000 over 4y, 4.3% of budgetCOLD SPRING HARBOR LABORATORY: $200,000 over 3y, 0.1% of budgetLONG ISLAND UNIVERSITY: $172,500 over 4y, 0.0% of budgetHuntington Hospital Association: $145,000 over 4y, 0.0% of budgetFRIENDS OF SCIENCE EAST INC: $80,000 over 4y, 20% of budgetSTRATA FOUNDATION INC: $75,000 over 4y, 47% of budgetUNITED JEWISH FEDERATION STAMFORD NEW CANAAN DARIEN INC: $70,000 over 4y, 0.7% of budgetALPHA OMEGA FOUNDATION INC: $64,000 over 3y, 8.0% of budgetLONG ISLAND MUSIC AND ENTERTAINMENT HALL: $60,000 over 2y, 3.3% of budgetSTONY BROOK FOUNDATION INC: $55,000 over 3y, 0.0% of budgetNY POLICE AND FIRE WIDOWS' & CHILDREN'S BENEFIT FUND INC: $50,000 over 2y, 0.6% of budgetMENTAL HEALTH ASSOCIATION OF NASSAU COUNTY INC: $50,000 over 4y, 0.1% of budgetAMERICAN FRIENDS OF HEBREW UNIVERSITY INC: $45,000 over 2y, 0.0% of budgetAMERICAN JEWISH COMMITTEE: $45,000 over 3y, 0.0% of budgetMOLLOY UNIVERSITY: $40,000 over 3y, 0.0% of budgetDANTE FOUNDATION OF NASSAU COUNTY INC: $37,500 over 2y, 6.6% of budgetWALT WHITMAN BIRTHPLACE ASSOCIATION: $37,500 over 3y, 4.3% of budgetThe Marty Lyons Foundation Inc: $35,000 over 3y, 1.7% of budgetTHEATRE FOR A NEW AUDIENCE INC: $32,500 over 4y, 0.1% of budgetMIRACLE CORNERS OF THE WORLD INC: $30,000 over 2y, 3.6% of budgetTHE IMAGINE AWARDS INC: $30,000 over 2y, 3.7% of budgetPARDES INSTITUTE OF JEWISH STUDIES NORTH AMERICA INC: $30,000 over 2y, 0.2% of budgetHUNTINGTON HISTORICAL SOCIETY: $30,000 over 2y, 3.9% of budgetNassau County Museum of Art: $30,000 over 3y, 0.5% of budgetHuntington Ballet Theatre: $30,000 over 4y, 20% of budgetHENRY SCHEIN CARES FOUNDATION INC: $28,000 over 2y, 4.9% of budgetBREAKTHROUGH T1D: $27,500 over 2y, 0.0% of budgetNORTH SHORE HOLIDAY HOUSE INC: $27,500 over 4y, 1.1% of budgetHARBOR COUNTRY DAY SCHOOL: $27,500 over 3y, 0.2% of budgetNAMI QueensNassau Inc: $25,000 over 3y, 4.4% of budgetLong Island Alzheimers and Dementia Center Inc: $25,000 over 3y, 0.6% of budgetThe Norwalk Symphony Society Inc: $25,000 over 2y, 3.1% of budgetAMERICAN SOCIETY OF HEATING REFRIGERATING AND A-C ENGINEERS INC: $25,000 over 1y, 0.1% of budgetAMERICAN FRIENDS OF SHALVA ISRAEL INC: $25,000 over 1y, 0.3% of budgetSUFFOLK COUNTY VANDERBILT MUSEUM: $22,500 over 2y, 0.4% of budgetALLIED FOUNDATION INC: $20,000 over 2y, 3.7% of budgetCITIZENS CAMPAIGN FUND FOR THE ENVIRONMENT INC: $20,000 over 2y, 0.8% of budgetSOLVE ME CFS INITIATIVE INC: $20,000 over 1y, 1.0% of budgetDIABETES RESEARCH INSTITUTE FOUNDATION INC: $20,000 over 1y, 0.3% of budgetDR EDWARD B SHILS ENTREPRENEURIAL FUND INC: $20,000 over 1y, 20% of budgetCHAMINADE DEVELOPMENT FUND INC: $20,000 over 1y, 0.1% of budgetFAMILY SERVICE LEAGUE INC: $20,000 over 2y, 0.0% of budgetTHE HELP USA FUND INC: $17,500 over 2y, 1.0% of budgetTHE TOWNWIDE FUND OF HUNTINGTON INC: $15,000 over 2y, 1.2% of budgetNASSAU ACADEMY OF DENTISTRY: $15,000 over 1y, 15% of budgetHECKSCHER MUSEUM: $15,000 over 3y, 0.3% of budgetTemple University - Of The Commonwealth System of Higher Education: $15,000 over 1y, 0.0% of budgetThe Don Monti Memorial Research Foundation Inc: $15,000 over 1y, 2.9% 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.

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 Communit…The Goldman Sachs Cha…New York Community Ba…Robert David Lion Gar…Jewish Communal FundLostritto Family Foun…Peter & Jeri Dejana F…Mother Cabrini Health…Frank J Antun Foundat…Posillico Foundation …Mutual of America Fou…United Jewish Appeal-…
The New York Community TrustNY35.6× affinity20 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The New York Community Trust · The Goldman Sachs Charitable Gift Fund · New York Community Bank Foundation · Robert David Lion Gardiner Foundation Inc · Jewish Communal Fund · Lostritto Family Foundation · Peter & Jeri Dejana Foundation · Mother Cabrini Health Foundation Inc · Frank J Antun Foundation · Posillico Foundation Inc · Mutual of America Foundation · United Jewish Appeal-Federation of Jewish Philanthropies of New York 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.
04Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to The Claire Friedlander Family Foundation?

Find your warmest path to The Claire Friedlander Family 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 178 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 Claire Friedlander Family’s filings →

More from the funding graph

The unnamed billions
grants reported with no recipient in the public record
The regranting layer
51% of grant dollars land in the regranting layer
The DAF merry-go-round
$9.7B circulates between donor-advised funds
The endowment market
who holds foundation money, and what just moved
The camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home