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Herbert Feinberg Family Foundation at a glance

· Private foundation

Herbert Feinberg 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.

$830k
Granted FY2025still arriving
17
Grants FY2025still arriving
8
States reached
$175k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through 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, FY2021 to 2025.

Education$1.9MHealth$1.1MAnimals$751kReligion$250kPhilanthropy$241kYouth Development$191kEnvironment$155kPublic Safety & Disaster$115kOther$0
02FY2025 · 17 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k4 grants · $15k
  • $10k–50k6 grants · $116k
  • $50k–250k7 grants · $699k
$25,000
Median grant
8
States reached
$11M
Total assets
Largest grants
RecipientAmount
ALLEN-STEVENSON SCHOOL$175,000
FIDELITY CHARITABLE$166,000
HUNTERS CMT4B3 RESEARCH FOUNDATION INC$100,000
JOAN & SANFORD I WEILL MEDICAL COLLEGE$91,000
AMERICAS VETDOGS$66,000
CHILDRENS BRAIN TUMOR PROJECT$51,000
THE SATO PROJECT INC$50,000
AUGUST WEST FOUNDATION FOR$25,000
ARM SANCTUARY INC$25,000
NOW I AM KNOWN FOUNDATION$25,000
RISING STARR HORSE RESCUE$16,000
BIGGER THAN INC$15,000
FUREVER BULLY LOVE RESCUE$10,000
ROBINHOOD FOUNDATION$8,000
RONALD MCDONALD HOUSE NEW YORK$5,000
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, $91k) land where the poverty rate runs at 13%, against an area that typically sits at 11%. 73% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 11%CHALLENGED ATHLETES FOUNDATION: $25k → 11%NOW I AM KNOWN FOUNDATION: $25k → 10%CHALLENGED ATHLETES INC: $1k → 11%SOLUTIONS NOW FOUNDATION: $40k → 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
NH
IL
WI
NY
MA
PA
NJ
CT
CA
CO
NC
TX
FL
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.

21%of every dollar goes to organizations it has funded before.
$882k · 10 repeat orgs$3.3M to everyone else

10 repeat relationships: 8 still active in FY2025, 2 since wound down; 8 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

10
41

Total granted

$882k
$3.1M

Median revenue growth · since first grant

-15%
+4%

Still filing today

70%
56%

New vs renewed · share of each year

In FY2025, 58% of grant dollars renewed an existing relationship; $282k went to new ones.

50%100%’21’22’23’25
RenewedFirst-time

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

’21’22’23’25
AnimalsHealthHuman ServicesEnvironmentEducationArts & 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.

Backed again, and grew

  • 1H
    13 HANDS EQUINE RESCUE INC
    2× · 2022–2023 · $200k · revenue +79%
  • HC
    HUNTERS CMT4B3 RESEARCH FOUNDATION INC
    2× · 2023–2025 · $150k · revenue +50%
  • RM
    RONALD MCDONALD HOUSE OF NEW YORK INC
    2× · 2023–2025 · $20k · revenue +24%

Funded once

  • PP
    POLY PREP COUNTRY DAY SCHOOL
    one grant, 2022 · $1.0M · revenue +15%
  • PE
    PARK EAST SYNAGOGUE
    one grant, 2023 · $250k
  • AD
    ALZHEIMER'S DISEASE RESEARCH FOUNDATIONgraduated
    one grant, 2023 · $200k · revenue +50%
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
Pet Rescue Miami Inc
Animals
2
The Adoptable Dog
Animals
3
Raskels Rescue
Animals
4
St Clouds Rescue
Animals
5
Their Lives Matter

Dog rescue and care nurturing finding a home

Animals
6
Muttsnstuff

Rescue animals

Animals
7
Happy Tails Dog Rescue Inc

The Organization's mission is to rescue dogs from high-kill animal shelters and place them in loving forever homes. All dogs rescued are given necessary medical care prior to adoption, including required vaccinations. Dogs are placed in…

Animals
8
Rescuesforjojo

Dog rescue

Animals
9
J-Lo's Animal Rescue & Sanctuary in

Animal care and rescue

Animals
10
Pats Pets Corporation

Animal rescue

Animals
11
Pet Rescue Alliance Inc

Rescue animals from shelter

Animals
12
Asian Dogs Rescue Allies

To rescue at risk k-9s from asia.

Animals
How this is measured
The grantee most central to the portfolio’s shape is Guardians of Florida Animal Rescue Inc; the most unlike its peers is Now I am Known Foundation. 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

37 grantees tracked through their own filings, 2017–2026.

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 2026, not grant rows in a single year, so this will not match the grant count on the cover. 37 of the 61 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.

3
Load-bearing (≥25% of a budget)
5
Early backer (in before they grew)
37/37
Grantees still filing
19/37
Grew since first funded

Where the money sits, by cause and then by grantee

POLY PREP COUNTRY DAY SCHOOL: $1,025,000 · EducationPOLY PREP COUNTRY DAY SCHOOLTRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA: $775,000 · EducationTRUSTEES OF THE UNIVERSITY OF PENNSYLVA…PARK EAST SYNAGOGUE: $250,000 · OtherPARK EAST SYNAGOGUETHE ALLEN-STEVENSON SCHOOL: $190,000 · OtherTHE ALLEN-STEVENSON SCHOOLREDLAND ROCK PIT ABANDONED DOGS: $150,000 · OtherREDLAND ROCK PIT ABANDONED DOGSIndividual grant recipient: $100,000 · OtherIndividual grant recipientWEILL CORNELL MEDICINE: $100,000 · OtherWEILL CORNELL MEDICINEJOAN & SANFORD I WEILL MEDICAL COLLEGE: $91,000 · OtherJOAN & SANFORD I WEILL MEDICAL COLL…CHILDRENS BRAIN TUMOR PROJECT: $76,000 · OtherAUGUST WEST FOUNDATION FOR: $75,000 · OtherBEDFORD FIRE DEPARTMENT: $75,000 · OtherAMERICA'S VETDOGS THE VETERANS K-9 CORPS INC: $66,000 · OtherThe Art Students League Of New York Inc: $60,000 · Other+20 more: $390,150 · Other+20 moreALZHEIMER'S DISEASE RESEARCH FOUNDATION: $200,000 · HealthALZHEIMER'S DISEA…THE MOUNT SINAI HOSPITAL: $200,000 · HealthTHE MOUNT SINAI H…JOSLIN DIABETES CENTER INC: $200,000 · HealthJOSLIN DIABETES C…HUNTERS CMT4B3 RESEARCH FOUNDATION INC: $150,000 · HealthHUNTERS CMT4B3 RE…+3 more: $26,000 · Health13 HANDS EQUINE RESCUE INC: $200,000 · Animals13 HANDS EQ…THE SATO PROJECT: $50,000 · AnimalsTHE SATO PR…SOPHIE'S CIRCLE INC: $50,000 · AnimalsSOPHIE'S CI…FUREVER BULLY LOVE RESCUE: $45,000 · AnimalsFUREVER BUL…BULLIES N BEYOND INC: $40,000 · AnimalsBULLIES N B…ARM SANCTUARY INC: $25,000 · AnimalsDOBERMAN RESCUE LEAGUE INC: $20,000 · Animals+8 more: $116,000 · Animals+8 moreFIDELITY INVESTMENTS CHARITABLE GIFT FUND: $166,000 · Community ImprovementGROUP FOR THE EAST END INC: $150,000 · Environment+1 more: $5,000 · EnvironmentSOLUTIONS NOW FOUNDATION: $40,000 · Human ServicesCHALLENGED ATHLETES INC: $26,000 · Human ServicesNow I am Known Foundation: $25,000 · Human Services
Education$1,800,000Other$1,623,150Health$776,000Animals$546,000Community Improvement$166,000Environment$155,000Human Services$91,000

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 budgetPOLY PREP COUNTRY DAY SCHOOL: $1,025,000 over 1y, 1.3% of budgetTRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA: $775,000 over 1y, 0.0% of budgetALZHEIMER'S DISEASE RESEARCH FOUNDATION: $200,000 over 1y, 0.5% of budgetTHE MOUNT SINAI HOSPITAL: $200,000 over 1y, 0.0% of budget13 HANDS EQUINE RESCUE INC: $200,000 over 2y, 11% of budgetJOSLIN DIABETES CENTER INC: $200,000 over 1y, 0.3% of budgetTHE ALLEN-STEVENSON SCHOOL: $190,000 over 2y, 0.6% of budgetFIDELITY INVESTMENTS CHARITABLE GIFT FUND: $166,000 over 1y, 0.0% of budgetHUNTERS CMT4B3 RESEARCH FOUNDATION INC: $150,000 over 2y, 16% of budgetGROUP FOR THE EAST END INC: $150,000 over 1y, 13% of budgetAMERICA'S VETDOGS THE VETERANS K-9 CORPS INC: $66,000 over 1y, 0.7% of budgetThe Art Students League Of New York Inc: $60,000 over 2y, 0.4% of budgetSOPHIE'S CIRCLE INC: $50,000 over 1y, 7.6% of budgetFUREVER BULLY LOVE RESCUE: $45,000 over 2y, 13% of budgetBULLIES N BEYOND INC: $40,000 over 1y, 70% of budgetSOLUTIONS NOW FOUNDATION: $40,000 over 1y, 30% of budgetCHALLENGED ATHLETES INC: $26,000 over 2y, 0.2% of budgetNow I am Known Foundation: $25,000 over 1y, 21% of budgetDOBERMAN RESCUE LEAGUE INC: $20,000 over 1y, 5.9% of budgetRONALD MCDONALD HOUSE OF NEW YORK INC: $20,000 over 2y, 0.1% of budgetRISING STARR HORSE RESCUE CORP: $16,000 over 1y, 0.6% of budgetPAWS FROM AFAR INC: $15,000 over 1y, 42% of budgetBARKY PINES ANIMAL RESCUE & SANCTUARY INCORPORATED: $15,000 over 1y, 2.3% of budgetARTHURS ACRES ANIMAL SANCTUARY CORPORATION: $15,000 over 1y, 1.3% of budgetGALGOS DEL SOL USA: $15,000 over 1y, 1.6% of budgetTHISISHOUSTON: $15,000 over 1y, 1.3% of budgetGENE SPOTLIGHT INC: $15,000 over 1y, 3.4% of budgetGuardians of Florida Animal Rescue Inc: $15,000 over 1y, 2.5% of budgetBEACHMUTTS ORGANIZATION: $15,000 over 1y, 2.0% of budgetPAN-MASSACHUSETTS CHALLENGE INC: $10,000 over 1y, 0.0% of budgetRISING STAR ROTTWIELER RESCUE INC: $10,000 over 1y, 14% of budgetBLOOD CANCER UNITED INC: $5,000 over 1y, 0.0% of budgetAccabonac Protection Committee Inc: $5,000 over 1y, 20% of budgetPROJECT ALS INC: $1,000 over 1y, 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.

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.

Paypal Charitable Giv…The Goldman Sachs Cha…Leslie L Alexander Fo…Gs Donor Advised Phil…Jpmorgan Chase Founda…Jewish Communal FundThe Pfizer Foundation…Charities Aid Foundat…The Bank of America C…National Philanthropi…American Online Givin…Network for Good
Paypal Charitable Giving FundDC13.5× affinity16 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Paypal Charitable Giving Fund · The Goldman Sachs Charitable Gift Fund · Leslie L Alexander Foundation Inc · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · Jpmorgan Chase Foundation · Jewish Communal Fund · The Pfizer Foundation Inc · Charities Aid Foundation America · The Bank of America Charitable Foundation Inc · National Philanthropic Trust · American Online Giving Foundation Inc · Network for Good

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

2024
’20’21’22’23’24’25
no gov · 120%6%25%56%100%funder's share of their income ↑0%10%20%30%40%share of the org’s income from government →median 35%
  • Joslin Diabetes Center Inc: 35% of income from government
  • Pan-Massachusetts Challenge Inc: 0% of income from government
no gov moneyreceives it· size = income
12get no government money at all
6report 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 Herbert Feinberg Family Foundation?

Find your warmest path to Herbert Feinberg 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 61 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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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