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· Private foundation

The Sudarsky Family Foundation Inc

Its FY2025 filing reports that it accepted unsolicited grant applications.

$980k
Granted FY2025still arriving
39
Grants FY2025still arriving
13
States reached
$60k
Largest
01What it funds
0197% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2019 to 2025.

Education$1.2MArts & Culture$1.2MHealth$872kPhilanthropy$700kCivil Rights$547kFood & Nutrition$305kInternational$232kCrime & Legal$211kOther$0
02FY2025 · 39 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k9 grants · $46k
  • $10k–50k19 grants · $384k
  • $50k–250k11 grants · $560k
$20,000
Median grant
13
States reached
$16M
Total assets
Largest grants
RecipientAmount
PUBLIC MEDIA COMPANY$60,000
American Civil Liberties Union Foundation$50,000
THE UCLA FOUNDATION$50,000
PLANNED PARENTHOOD LEAGUE OF MASSACHUSETTS$50,000
MICHAEL J FOX FOUNDATION$50,000
Loomis Chaffe School$50,000
Feeding America$50,000
Individual grant recipient$50,000
WATER ORG$50,000
William J Brennan Jr Center for Justice$50,000
Hartford Foundation of Public Giving$50,000
EVERYTOWN FOR GUN SAFETY SUPPORT FUND INC$35,000
BRIGHAM AND WOMENS HOSPITAL INC$30,000
ROBIN HOOD FOUNDATION$25,000
BOSTON HEALTH CARE FOR THE HOMELESS PROGRAM INC$25,000
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 (FY22–25, $55k) land where the poverty rate runs at 17%, against an area that typically sits at 11%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 11%BOSTON HEALTH CARE FOR THE HOMELESS PROGRAM INC: $25k → 16%THE BRIGID ALLIANCE: $30k → 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

ME
VT
IL
NY
MA
OH
PA
CT
RI
CA
CO
MO
VA
AZ
AR
TN
NC
DC
AL
TX
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.

92%of every dollar goes to organizations it has funded before.
$4.8M · 41 repeat orgs$423k to everyone else

41 repeat relationships: 25 still active in FY2025, 16 since wound down; 12 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

41
11

Total granted

$4.8M
$153k

Median revenue growth · since first grant

+29%
+42%

Still filing today

76%
55%

New vs renewed · share of each year

In FY2025, 70% of grant dollars renewed an existing relationship; $270k went to new ones.

50%100%’19’20’21’22’23’24’25
RenewedFirst-time

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

’19’20’21’22’23’24’25
Arts & CultureHealthEducationPhilanthropyCrime & LegalCivil RightsOther
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

  • WILLIAM J BRENNAN CENTER FOR JUSTICE INC
    7× · 2019–2025 · $580k · revenue +182%
  • THE MICHAEL J FOX FOUNDATION FOR PARKINSON'S RESEARCH
    6× · 2019–2025 · $300k · revenue +338%
  • AMERICAN CIVIL LIBERTIES UNION FOUNDATION INC
    7× · 2019–2025 · $292k · revenue +49%

Funded once

  • American Diabetes Association
    one grant, 2019 · $50k · revenue +4%
  • TB
    THE BRIGID ALLIANCE INCgraduated
    one grant, 2022 · $30k · revenue +42%
  • AF
    AMERICAN FOLK ART MUSEUMgraduated
    one grant, 2019 · $25k · revenue +70%
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
Boston Architectural College

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

—
2
University of New Haven

The University of New Haven is a student-centered comprehensive university with an emphasis on excellence in liberal arts and professional education. Our mission is to prepare our students to lead purposeful and fulfilling lives in a…

Education
3
Stony Brook Urology University Faculty Practice Corporation

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

Health
4
Massachusetts Institute of Technology

The mission of mit is to advance knowledge and educate students in science, technology, and other areas of scholarship that will best serve the nation and the world in the 21st century.

Education
5
Stony Brook Internists University Faculty Practice Corporation

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

Health
6
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
7
The Paris Review Foundation Inc

The mission of the organization is to foster the development of creative individuals as writers and artists and to promote public appreciation of excellence in the literary and graphic arts by publishing a magazine containing fiction,…

Education
8
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
9
United States Naval Institute

Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.

—
10
University Associates in Obstetrics and Gynecology University Faculty Pract ice Corporation

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

Health
11
Stony Brook Ophthalmology University Faculty Practice Corporation

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

Health
12
Stony Brook Orthopedic 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 Waterorg; the most unlike its peers is American Diabetes Association. 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

50 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. 50 of the 67 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)
4
Early backer (in before they grew)
48/50
Grantees still filing
32/50
Grew since first funded

Where the money sits, by cause and then by grantee

National Endowment for the Arts: $470,000 · OtherNational Endowment for the ArtsIndividual grant recipient: $341,500 · OtherIndividual grant recipientLoomis Chaffe School: $185,000 · OtherLoomis Chaffe SchoolMarlboro Music School: $95,000 · OtherFeeding America: $290,000 · OtherFeeding AmericaWATERORG: $100,000 · OtherCity Squash Inc: $117,750 · OtherCity Squash Inc+22 more: $587,750 · Other+22 moreWILLIAM J BRENNAN CENTER FOR JUSTICE INC: $580,000 · EducationWILLIAM J BRENNAN C…UCLA FOUNDATION: $190,000 · EducationUCLA FOUNDATIONTHE POSSE FOUNDATION INC: $155,000 · EducationTHE POSSE FOUNDATIO…THE UNIVERSITY OF CONNECTICUT FOUNDATION INC: $50,000 · EducationCONNECTICUT COLLEGE: $40,000 · Education+1 more: $31,500 · EducationTHE MICHAEL J FOX FOUNDATION FOR PARKINSON'S RESEARCH: $300,000 · HealthTHE MICHAEL J …PLANNED PARENTHOOD FEDERATION OF AMERICA INC: $175,000 · HealthPLANNED PARENT…PLANNED PARENTHOOD LEAGUE OF MASSACHUSETTS INC: $135,000 · HealthPLANNED PARENT…PARTNERS IN HEALTH A NONPROFIT CORPORATION: $85,000 · HealthPARTNERS IN HE…American Diabetes Association: $50,000 · HealthAmerican Diabe…D-TREE INTERNATIONAL INC: $26,000 · Health+1 more: $5,000 · HealthHARTFORD FOUNDATION FOR PUBLIC GIVING: $525,000 · PhilanthropyHARTFORD FOU…Combined Jewish Philanthropies of Greater Boston Inc: $55,000 · PhilanthropyCombined Jew…THE STANLEY FUND FOR THE BROAD INSTITUTE: $40,000 · PhilanthropyTHE STANLEY …UNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC: $35,000 · PhilanthropyROBIN HOOD FOUNDATION: $25,000 · Philanthropy+1 more: $3,000 · PhilanthropyTHE JEWISH MUSEUM: $185,000 · Arts & CultureTHE JEWISH …PRO PUBLICA INC: $120,000 · Arts & CulturePRO PUBLICA…PUBLIC MEDIA COMPANY: $60,000 · Arts & CulturePUBLIC MEDI…NATIONAL YIDDISH BOOK CENTER INC: $50,000 · Arts & CultureNATIONAL YI…Museum of Modern Art: $50,000 · Arts & CultureMuseum of M…BROOKLYN ARTS COUNCIL INC: $40,000 · Arts & CultureBROOKLYN AR…AMERICAN FOLK ART MUSEUM: $25,000 · Arts & Culture+7 more: $85,500 · Arts & Culture+7 moreAMERICAN CIVIL LIBERTIES UNION FOUNDATION INC: $292,000 · Civil RightsANTI-DEFAMATION LEAGUE: $75,000 · Civil RightsEVERYTOWN FOR GUN SAFETY SUPPORT FUND INC: $168,000 · Crime & LegalSOUTHERN POVERTY LAW CENTER INC: $150,000 · Crime & LegalSANDY HOOK PROMISE FOUNDATION: $43,000 · Crime & Legal
Other$2,187,000Education$1,046,500Health$776,000Philanthropy$683,000Arts & Culture$615,500Civil Rights$367,000Crime & Legal$361,000

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 budgetWILLIAM J BRENNAN CENTER FOR JUSTICE INC: $580,000 over 7y, 0.2% of budgetHARTFORD FOUNDATION FOR PUBLIC GIVING: $525,000 over 7y, 0.1% of budgetTHE MICHAEL J FOX FOUNDATION FOR PARKINSON'S RESEARCH: $300,000 over 6y, 0.0% of budgetAMERICAN CIVIL LIBERTIES UNION FOUNDATION INC: $292,000 over 7y, 0.0% of budgetFeeding America: $290,000 over 6y, 0.0% of budgetUCLA FOUNDATION: $190,000 over 4y, 0.0% of budgetTHE JEWISH MUSEUM: $185,000 over 7y, 0.2% of budgetPLANNED PARENTHOOD FEDERATION OF AMERICA INC: $175,000 over 3y, 0.0% of budgetEVERYTOWN FOR GUN SAFETY SUPPORT FUND INC: $168,000 over 4y, 0.1% of budgetTHE POSSE FOUNDATION INC: $155,000 over 7y, 0.1% of budgetSOUTHERN POVERTY LAW CENTER INC: $150,000 over 3y, 0.0% of budgetPLANNED PARENTHOOD LEAGUE OF MASSACHUSETTS INC: $135,000 over 3y, 0.2% of budgetPRO PUBLICA INC: $120,000 over 6y, 0.1% of budgetCity Squash Inc: $117,750 over 7y, 1.0% of budgetWATERORG: $100,000 over 2y, 0.2% of budgetPARTNERS IN HEALTH A NONPROFIT CORPORATION: $85,000 over 4y, 0.0% of budgetANTI-DEFAMATION LEAGUE: $75,000 over 3y, 0.1% of budgetTHE BREAST CANCER RESEARCH FOUNDATION INC: $68,000 over 3y, 0.1% of budgetTHE SURFRIDER FOUNDATION: $66,000 over 5y, 0.2% of budgetCombined Jewish Philanthropies of Greater Boston Inc: $55,000 over 4y, 0.0% of budgetNATIONAL YIDDISH BOOK CENTER INC: $50,000 over 5y, 0.1% of budgetMuseum of Modern Art: $50,000 over 3y, 0.0% of budgetTHE UNIVERSITY OF CONNECTICUT FOUNDATION INC: $50,000 over 2y, 0.0% of budgetAmerican Diabetes Association: $50,000 over 1y, 0.0% of budgetSANDY HOOK PROMISE FOUNDATION: $43,000 over 2y, 0.1% of budgetTHE STANLEY FUND FOR THE BROAD INSTITUTE: $40,000 over 4y, 4.8% of budgetALLIANCE TO PROTECT NANTUCKET SOUND INC: $40,000 over 3y, 1.3% of budgetBROOKLYN ARTS COUNCIL INC: $40,000 over 4y, 0.3% of budgetCONNECTICUT COLLEGE: $40,000 over 7y, 0.0% of budgetUNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC: $35,000 over 2y, 0.0% of budgetSenator George J Mitchell Scholarship Research Institute: $31,500 over 7y, 0.2% of budgetTHE BRIGID ALLIANCE INC: $30,000 over 1y, 0.3% of budgetD-TREE INTERNATIONAL INC: $26,000 over 2y, 0.6% of budgetBOSTON HEALTH CARE FOR THE HOMELESS PROGRAM INC: $25,000 over 1y, 0.0% of budgetGEORGE A WILEY CENTER: $25,000 over 1y, 18% of budgetAMERICAN FOLK ART MUSEUM: $25,000 over 1y, 0.7% of budgetHEIFER PROJECT INTERNATIONAL: $21,000 over 1y, 0.0% of budgetSpeakeasy Stage Company Inc: $20,000 over 2y, 0.9% of budgetSIMON WIESENTHAL CENTER INC: $20,000 over 1y, 0.1% of budgetNATIONAL ALLIANCE FOR RESEARCH ON SCHIZOPHRENIA AND DEPRESSION: $16,000 over 2y, 0.1% of budgetGOD'S LOVE WE DELIVER INC: $14,500 over 2y, 0.0% of budgetCITY LIGHTS INC: $10,000 over 1y, 31% of budgetAS 220: $6,000 over 1y, 0.2% of budgetJAZZ AT LINCOLN CENTER INC: $6,000 over 1y, 0.0% of budgetST JUDE CHILDREN'S RESEARCH HOSPITAL INC: $5,000 over 1y, 0.0% of budgetA FAR CRY INC: $3,500 over 1y, 0.3% of budgetMuddy Paws Rescue: $3,000 over 1y, 0.1% 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 WILLIAM J BRENNAN CENTER FOR JUSTICE INC ↗
  • Who funds HARTFORD FOUNDATION FOR PUBLIC GIVING ↗
  • Who funds THE MICHAEL J FOX FOUNDATION FOR PARKINSON'S RESEARCH ↗
  • Who funds AMERICAN CIVIL LIBERTIES UNION FOUNDATION INC ↗
  • Who funds Feeding America ↗
  • Who funds UCLA FOUNDATION ↗
  • Who funds THE JEWISH MUSEUM ↗
  • Who funds PLANNED PARENTHOOD FEDERATION OF AMERICA INC ↗
  • Who funds EVERYTOWN FOR GUN SAFETY SUPPORT FUND INC ↗
  • Who funds THE POSSE FOUNDATION INC ↗
  • Who funds SOUTHERN POVERTY LAW CENTER INC ↗
  • Who funds PLANNED PARENTHOOD LEAGUE OF MASSACHUSETTS INC ↗
  • Who funds PRO PUBLICA INC ↗
  • Who funds City Squash Inc ↗
  • Who funds WATERORG ↗
  • Who funds PARTNERS IN HEALTH A NONPROFIT CORPORATION ↗
  • Who funds ANTI-DEFAMATION LEAGUE ↗
  • Who funds THE BREAST CANCER RESEARCH FOUNDATION INC ↗
  • Who funds THE SURFRIDER FOUNDATION ↗
  • Who funds PUBLIC MEDIA COMPANY ↗
  • Who funds Combined Jewish Philanthropies of Greater Boston Inc ↗
  • Who funds NATIONAL YIDDISH BOOK CENTER INC ↗
  • Who funds Museum of Modern Art ↗
  • Who funds THE UNIVERSITY OF CONNECTICUT FOUNDATION INC ↗
  • Who funds American Diabetes Association ↗
  • Who funds SANDY HOOK PROMISE FOUNDATION ↗
  • Who funds THE STANLEY FUND FOR THE BROAD INSTITUTE ↗
  • Who funds ALLIANCE TO PROTECT NANTUCKET SOUND INC ↗
  • Who funds BROOKLYN ARTS COUNCIL INC ↗
  • Who funds CONNECTICUT COLLEGE ↗
  • Who funds UNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC ↗
  • Who funds Senator George J Mitchell Scholarship Research Institute ↗
  • Who funds THE BRIGID ALLIANCE 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.

Boston Foundation IncMA12× affinity4 shared granteesties to 7 of 7Hover any node to trace its alignments.Compare side by side →

Open a dossier: Boston Foundation Inc · The Bank of America Charitable Foundation Inc · Vanguard Charitable Endowment Program · Morgan Stanley Global Impact Funding Trust Inc · American Online Giving Foundation Inc · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile Foundation

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 The Sudarsky Family Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from The Sudarsky Family Foundation Inc. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 50%3%10%23%40%funder's share of their income ↑0%10%20%30%40%share of the org’s income from government →median 1%
  • Boston Health Care for the Homeless Program Inc: 8% of income from government
  • Planned Parenthood League of Massachusetts Inc: 3% of income from government
  • National Yiddish Book Center Inc: 2% of income from government
  • A Far Cry Inc: 1% of income from government
  • Sandy Hook Promise Foundation: 0% of income from government
  • Connecticut College: 0% of income from government
  • Partners in Health a Nonprofit Corporation: 0% of income from government
no gov moneyreceives it· size = income
5get no government money at all
7report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–40%
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 The Sudarsky Family Foundation Inc?

Find your warmest path to The Sudarsky Family 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.

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 67 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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