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The Peter a and Deborah L Weinberg Family Foundation at a glance

· Private foundation

The Peter a and Deborah L Weinberg 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.

$2.4M
Granted FY2025still arriving
24
Grants FY2025still arriving
5
States reached
$1.1M
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0197% classified

What it funded, over time

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

Education$11MHealth$3.0MReligion$2.2MSocial Science$1.8MPublic Safety & Disaster$500kCivil Rights$350kPhilanthropy$190kHuman Services$124kOther$0
02FY2025 · 24 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k9 grants · $34k
  • $10k–50k8 grants · $170k
  • $50k–250k4 grants · $440k
  • $250k+3 grants · $1.8M
$25,000
Median grant
5
States reached
$10.0M
Total assets
Largest grants
RecipientAmount
UNITED JEWISH APPEAL$1,050,000
MEMORIAL SLOAN KETTERING CANCER CENTER$500,000
DEERFIELD ACADEMY$250,000
SMITH COLLEGE$225,000
WATERSIDE SCHOOL$115,000
AMERICAN JEWISH COMMITTEE$50,000
LESLEY UNIVERSITY$50,000
PARKINSON'S WELLNESS FOUNDATION$25,000
FRIENDS OF THE HIGH LINE$25,000
COLUMBIA UNIVERSITY$25,000
SOCIAL IMPACT PARTNERS$25,000
ALEXANDER TWILIGHT ACADEMY$25,000
CENTRAL SYNAGOGUE$25,000
CENTRAL PARK CONSERVANCY$10,000
HARVARD BUSINESS SCHOOL$10,000
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, $141k) land where the poverty rate runs at 14%, against an area that typically sits at 10%. 59% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 10%ACCESSPORT AMERICA: $5k → 8%GUIDING EYES FOR THE BLIND: $22k → 9%Graham Windham: $5k → 20%The BRCC Fund: $3k → 8%ACCESSPORTAMERICA: $3k → 8%SOCIAL IMPACT PARTNERS: $25k → 9%JEWISH BOARD OF FAMILY AND CHILDREN'S SERVICES: $25k → 17%THE JEWISH BOARD: $3k → 17%The Teak Fellowship Inc: $50k → 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
WA
MI
NY
MA
PA
CT
CA
UT
CO
MD
SC
DC
OK
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.

83%of every dollar goes to organizations it has funded before.
$12M · 29 repeat orgs$2.5M to everyone else

Grantees it renews have grown median revenue +7% since the first grant, against +4% for those funded once.

29 repeat relationships: 16 still active in FY2025, 13 since wound down; 7 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

29
54

Total granted

$12M
$1.6M

Median revenue growth · since first grant

+7%
+4%

Still filing today

62%
54%

New vs renewed · share of each year

In FY2025, 64% of grant dollars renewed an existing relationship; $860k 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
EducationHealthHuman ServicesArts & CultureCivil RightsRecreation & SportsOther
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

  • TT
    THE TRUSTEES OF THE SMITH COLLEGE
    6× · 2020–2025 · $3.2M · revenue +35%
  • TK
    THE KING'S ACADEMY INC
    3× · 2020–2022 · $1.5M · revenue +53%
  • WS
    WATERSIDE SCHOOL INC
    6× · 2020–2025 · $462k · revenue +52%

Funded once

  • HF
    HARTFORD FOUNDATION - HFPG INC
    one grant, 2020 · $500k
  • PA
    President and Fellows of Middlebury Collegegraduated
    one grant, 2020 · $250k · revenue +28%
  • UJ
    UNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INCgraduated
    one grant, 2023 · $130k · revenue +34%
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
Fordham University

Fordham university, the jesuit university of new york, is committed to the discovery of wisdom and the transmission of learning, through research and through education of the highest quality. for more information, see schedule o.

Education
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
The Trustees of Princeton University

Research, education and general - princeton university is a private not-for-profit, non-sectarian institution of higher learning with approximately 5,700 undergraduate and 3,300 graduate students. 2,500 students graduated in the 2024-2025…

Education
6
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
7
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
8
Stony Brook Childrens Services University Faculty Practice Corporation

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

Health
9
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
10
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
11
Manhattanville University

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

Education
12
Furman University

The primary mission of furman as a liberal arts institution is to provide a distinctive education in fine arts, humanities, social sciences, mathematics and the sciences, as well as selected professional disciplines.

Education
How this is measured
The grantee most central to the portfolio’s shape is The New York Bar Foundation; the most unlike its peers is Parkinsons Wellness 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

54 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. 54 of the 91 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)
54/54
Grantees still filing
27/54
Grew since first funded

Where the money sits, by cause and then by grantee

THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK: $4,836,100 · EducationTHE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORKTHE TRUSTEES OF THE SMITH COLLEGE: $3,175,900 · EducationTHE TRUSTEES OF THE SMITH COLLEGETHE KING'S ACADEMY INC: $1,500,000 · EducationTHE KING'S ACADEMY INCWATERSIDE SCHOOL INC: $462,000 · Education+9 more: $797,500 · Education+9 moreMemorial Sloan Kettering Cancer Center: $2,300,000 · OtherMemorial Sloan Kettering Cancer CenterUNITED JEWISH APPEAL: $2,055,231 · OtherUNITED JEWISH APPEALHARVARD BUSINESS SCHOOL: $1,770,000 · OtherHARVARD BUSINESS SCHOOLHARTFORD FOUNDATION - HFPG INC: $500,000 · OtherHARTFORD FOUNDATION - HFPG INC+51 more: $995,343 · Other+51 moreMEMORIAL SLOAN-KETTERING CANCER CENTER: $500,000 · HealthCEREBRAL PALSY FOUNDATION INC: $33,500 · HealthVAIL HEALTH SERVICES FOUNDATION: $30,000 · HealthParkinsons Wellness Foundation: $25,000 · Health+4 more: $32,500 · HealthAMERICAN JEWISH COMMITTEE: $175,000 · Civil RightsNational Court Appointed Special Advocate Association: $85,000 · Civil Rights+1 more: $2,500 · Civil RightsTHE TEAK FELLOWSHIP INC: $50,000 · Human ServicesJEWISH BOARD OF FAMILY & CHILDREN'S SERVICES INC: $27,500 · Human ServicesSocial Impact Partners Inc: $25,000 · Human ServicesGUIDING EYES FOR THE BLIND INC: $22,000 · Human ServicesACCESSPORTSAMERICA INC: $8,000 · Human ServicesGRAHAM WINDHAM: $5,000 · Human Services+2 more: $4,000 · Human ServicesUNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC: $130,000 · PhilanthropyCENTRAL PARK CONSERVANCY INC: $36,000 · Recreation & SportsFIGURE SKATING IN HARLEM INC: $7,000 · Recreation & Sports+1 more: $1,000 · Recreation & Sports
Education$10,771,500Other$7,620,574Health$621,000Civil Rights$262,500Human Services$141,500Philanthropy$130,000Recreation & Sports$44,000

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

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetTHE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK: $4,836,100 over 6y, 0.1% of budgetTHE TRUSTEES OF THE SMITH COLLEGE: $3,175,900 over 6y, 0.2% of budgetTHE KING'S ACADEMY INC: $1,500,000 over 3y, 2.4% of budgetWATERSIDE SCHOOL INC: $462,000 over 6y, 1.4% of budgetPresident and Fellows of Middlebury College: $250,000 over 1y, 0.1% of budgetTRUSTEES OF DEERFIELD ACADEMY: $250,000 over 1y, 0.2% of budgetALEXANDER TWILIGHT ACADEMY INC: $250,000 over 5y, 8.5% of budgetAMERICAN JEWISH COMMITTEE: $175,000 over 2y, 0.1% of budgetUNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC: $130,000 over 1y, 0.1% of budgetNational Court Appointed Special Advocate Association: $85,000 over 4y, 0.3% of budgetFAMILY CENTERS INC: $70,000 over 3y, 0.3% of budgetTHE TEAK FELLOWSHIP INC: $50,000 over 1y, 0.5% of budgetLESLEY UNIVERSITY: $50,000 over 1y, 0.1% of budgetCENTRAL PARK CONSERVANCY INC: $36,000 over 4y, 0.0% of budgetCEREBRAL PALSY FOUNDATION INC: $33,500 over 2y, 1.4% of budgetVAIL HEALTH SERVICES FOUNDATION: $30,000 over 2y, 0.1% of budgetFRIENDS OF THE HIGH LINE INC: $29,700 over 2y, 0.0% of budgetTeach for America Inc: $27,500 over 2y, 0.0% of budgetJEWISH BOARD OF FAMILY & CHILDREN'S SERVICES INC: $27,500 over 2y, 0.0% of budgetParkinsons Wellness Foundation: $25,000 over 1y, 2.9% of budgetSocial Impact Partners Inc: $25,000 over 1y, 0.5% of budgetBOYS & GIRLS CLUB OF GREENWICH: $22,500 over 5y, 0.1% of budgetGUIDING EYES FOR THE BLIND INC: $22,000 over 1y, 0.1% of budgetINNER CITY SCHOLARSHIP FUND INC: $20,000 over 2y, 0.0% of budgetCerebral Palsy Alliance Research Foundation: $15,000 over 1y, 0.8% of budgetBABY2BABY: $10,000 over 1y, 0.0% of budgetJBFC INC DBA MAINSPRINGSJBFC: $9,000 over 1y, 0.9% of budgetACCESSPORTSAMERICA INC: $8,000 over 2y, 0.6% of budgetTHE FIBROLAMELLAR CANCER FOUNDATION: $7,500 over 2y, 0.1% of budgetSMILE FARMS INC: $7,500 over 1y, 1.1% of budgetFIGURE SKATING IN HARLEM INC: $7,000 over 1y, 0.2% of budgetREADWORKSINC: $5,000 over 1y, 0.1% of budgetFILM AT LINCOLN CENTER INC: $5,000 over 1y, 0.0% of budgetTHE GREENWICH LIBRARY: $5,000 over 1y, 0.1% of budgetCOFFEE FOR GOOD INC: $5,000 over 2y, 0.4% of budgetGRAHAM WINDHAM: $5,000 over 1y, 0.0% of budgetPARTNERSHIP TO END ADDICTION: $5,000 over 1y, 0.1% of budgetABILIS INC: $5,000 over 1y, 0.0% of budgetMEETING STREET SCHOOLS: $5,000 over 1y, 0.0% of budgetBRCC FUND: $3,000 over 1y, 0.3% of budgetTHE ONE LOVE FOUNDATION IN HONOR OF YEARDLEY LOVE INC: $2,500 over 1y, 0.0% of budgetTHE DEBORAH PROJECT INC: $2,500 over 1y, 0.5% of budgetSTUDENTSPONSOR PARTNERS INC: $2,500 over 1y, 0.0% of budgetLINCOLN CENTER FOR THE PERFORMING ARTS INC: $2,500 over 1y, 0.0% of budgetNEW YORK CITY BALLET INC: $2,500 over 1y, 0.0% of budgetGREENWICH EMERGENCY MEDICAL SERVICE INC: $2,500 over 1y, 0.0% of budgetTHE RAINFOREST FUND INC: $1,680 over 1y, 0.5% of budgetTHE NEW YORK BAR FOUNDATION: $1,000 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.

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 Goldman Sachs Cha…Jewish Communal FundThe Ayco Charitable F…Howard and Debbie Sch…National Philanthropi…The Pfizer Foundation…Morgan Stanley Global…Jpmorgan Chase Founda…The Blackbaud Giving …Charities Aid Foundat…American Endowment Fo…The Bank of America C…
The Goldman Sachs Charitable Gift FundNY21.3× affinity9 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Goldman Sachs Charitable Gift Fund · Jewish Communal Fund · The Ayco Charitable Foundation · Howard and Debbie Schiller Foundation · National Philanthropic Trust · The Pfizer Foundation Inc · Morgan Stanley Global Impact Funding Trust Inc · Jpmorgan Chase Foundation · The Blackbaud Giving Fund · Charities Aid Foundation America · American Endowment Foundation · The Bank of America Charitable Foundation 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.

How much its grantees rely on government

Each dot is one organization The Peter a and Deborah L Weinberg Family Foundation funds: left to right is the share of its income from government, bottom to top the share from The Peter a and Deborah L Weinberg Family Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 100%1%3%6%10%funder's share of their income ↑0%23%45%68%90%share of the org’s income from government →median 1%
  • Abilis Inc: 74% of income from government
  • Family Centers Inc: 20% of income from government
  • Boys & Girls Club of Greenwich: 7% of income from government
  • The Trustees of the Smith College: 1% of income from government
  • President and Fellows of Middlebury College: 1% of income from government
  • Lesley University: 1% of income from government
  • Pan-Massachusetts Challenge Inc: 0% of income from government
no gov moneyreceives it· size = income
10get no government money at all
9report government grants on their 990 we could not trace to a source (not plotted)
1rely on government for over half their income
⤢ axis zoomed · 0–90%
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 Peter a and Deborah L Weinberg Family Foundation?

Find your warmest path to The Peter a and Deborah L Weinberg 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 91 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 Peter a and Deborah L Weinberg 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