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New York · 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 FY2025(still arriving)
24
Grants FY2025
21
Organizations funded FY2024
57%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$25,000
Largest grant, FY2025
$1,050,000
Organizations funded a year
21 to 30
FY2020 to FY2024
States reached, FY2025
5
Total assets, FY2025
$10.0M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 57% of the organizations The Peter a and Deborah L Weinberg Family Foundation funded were first-time grantees, receiving 46% of its grant dollars.

New vs renewed · share of each year

In FY2024, 54% of grant dollars renewed an existing relationship; $1.2M went to new ones.

50%100%’21’22’23’24
RenewedFirst-time

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

’21’22’23’24
Human ServicesHealthEducationArts & 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.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2025still arriving23$2.4M30%
FY202421$2.7M57%
FY202325$1.9M68%
FY202225$2.9M48%
FY202122$2.2M55%
FY202030$2.7Mn/a
97% 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

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

VT
WA
MI
NY
MA
PA
CT
CA
UT
CO
MD
SC
DC
OK
FL

Top grantees

Largest recipients by total granted, FY2020 to FY2025, and the share of each one’s budget the grants supplied at peak.

Show all 56 grantees
All grantees of The Peter a and Deborah L Weinberg Family Foundation by total granted
GranteeTotal grantedYearsShare of their budget
The Trustees of the Smith College$3,175,90060%
The King's Academy Inc$1,500,00032%
Memorial Sloan-Kettering Cancer Center$500,0001n/a
Waterside School Inc$462,00061%
President and Fellows of Middlebury College$250,00010%
Trustees of Deerfield Academy$250,00010%
Alexander Twilight Academy Inc$250,00058%
American Jewish Committee$175,00020%
United Jewish Appeal-Federation of Jewish Philanthropies of New York Inc$130,00010%
National Court Appointed Special Advocate Association$85,00040%
Central Synagogue$75,0003n/a
Family Centers Inc$70,00030%
Regents of the University of Michigan$50,0001n/a
The Teak Fellowship Inc$50,00010%
Lesley University$50,00010%
Central Park Conservancy Inc$36,00040%
Cerebral Palsy Foundation Inc$33,50021%
Vail Health Services Foundation$30,00020%
Friends of the High Line Inc$29,70020%
Teach for America Inc$27,50020%
Jewish Board of Family & Children's Services Inc$27,50020%
Parkinsons Wellness Foundation$25,00013%
Social Impact Partners Inc$25,00010%
Boys & Girls Club of Greenwich$22,50050%
Guiding Eyes for the Blind Inc$22,00010%
Inner City Scholarship Fund Inc$20,00020%
Cerebral Palsy Alliance Research Foundation$15,00011%
Baby2baby$10,00010%
Jbfc Inc Dba Mainspringsjbfc$9,00011%
Accessportsamerica Inc$8,00021%
The Fibrolamellar Cancer Foundation$7,50020%
Smile Farms Inc$7,50011%
Figure Skating in Harlem Inc$7,00010%
Readworksinc$5,00010%
Film at Lincoln Center Inc$5,00010%
The Greenwich Library$5,00010%
Coffee for Good Inc$5,00020%
Graham Windham$5,00010%
Partnership to End Addiction$5,00010%
Abilis Inc$5,00010%
Meeting Street Schools$5,00010%
Brcc Fund$3,00010%
The One Love Foundation in Honor of Yeardley Love Inc$2,50010%
The Deborah Project Inc$2,50010%
Studentsponsor Partners Inc$2,50010%
Lincoln Center for the Performing Arts Inc$2,50010%
New York City Ballet Inc$2,50010%
Greenwich Emergency Medical Service Inc$2,50010%
The Rainforest Fund Inc$1,68011%
The New York Bar Foundation$1,00010%
City Squash Inc$1,00010%
Small Champions Inc$1,00010%
Women's Forum of New York Inc$1,00010%
New York Botanical Garden$60010%
Stamford Education 4 Autism Inc$5002n/a
Pan-Massachusetts Challenge Inc$50010%

What it could do for these grantees

Plus 34 recipients with no EIN on record ($7.3M), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget The Peter a and Deborah L Weinberg Family Foundation supplied at peak.

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their 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 budgetCity Squash Inc: $1,000 over 1y, 0.0% of budget

Tap a dot to name the grantee.

How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 52.

Nonprofits that may fit its grantmaking

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 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.

Compare The Peter a and Deborah L Weinberg Family Foundation with peer funders

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.

About The Peter a and Deborah L Weinberg Family Foundation

How much does The Peter a and Deborah L Weinberg Family Foundation give?
The Peter a and Deborah L Weinberg Family Foundation reported 24 grants totaling $2,444,250 in its FY2025 IRS filing. It funded between 21 and 30 organizations a year over FY2020 to FY2024.
What does The Peter a and Deborah L Weinberg Family Foundation fund?
By grant dollars over FY2020 to FY2025, its largest causes are Education (56%), Health (16%), Religion (11%).
Who are The Peter a and Deborah L Weinberg Family Foundation's largest grantees?
By total granted over FY2020 to FY2025: The Trustees of the Smith College ($3.2M), The King's Academy Inc ($1.5M), Memorial Sloan-Kettering Cancer Center ($500k).
Does The Peter a and Deborah L Weinberg Family Foundation fund new organizations?
In FY2024, 57% of the organizations it funded were first-time grantees.
Does The Peter a and Deborah L Weinberg Family Foundation accept unsolicited applications?
Its most recent filing reports that it funds preselected organizations and does not take unsolicited requests. Check the foundation's own site before ruling it out.
Which funders back the same organizations as The Peter a and Deborah L Weinberg Family Foundation?
Its strongest co-funders, measured against what their size predicts, include The Goldman Sachs Charitable Gift Fund, Jewish Communal Fund, The Ayco Charitable Foundation.
Where is The Peter a and Deborah L Weinberg Family Foundation based?
The Peter a and Deborah L Weinberg Family Foundation is based in NY.

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

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