· 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.
What you funded, over time
Every grant clustered by its grantee’s IRS cause code (NTEE), by year — across FY2020–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k9 grants · $34k
- $10k–50k8 grants · $170k
- $50k–250k4 grants · $440k
- $250k+3 grants · $1.8M
| Recipient | Amount |
|---|---|
| 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 |
| LESLEY UNIVERSITY | $50,000 |
| AMERICAN JEWISH COMMITTEE | $50,000 |
| SOCIAL IMPACT PARTNERS | $25,000 |
| ALEXANDER TWILIGHT ACADEMY | $25,000 |
| PARKINSON'S WELLNESS FOUNDATION | $25,000 |
| COLUMBIA UNIVERSITY | $25,000 |
| CENTRAL SYNAGOGUE | $25,000 |
| FRIENDS OF THE HIGH LINE | $25,000 |
| CENTRAL PARK CONSERVANCY | $10,000 |
| HARVARD BUSINESS SCHOOL | $10,000 |
Do your dollars go where the need is?
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
Your 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 your grants land in higher-need ZIPs.
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.
Which US states your grants reach
US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.
Who you back again
Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +7% since the first grant, against +4% for the ones you 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
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2025, 64% of grant dollars renewed an existing relationship; $860k went to new ones.
Where new relationships form · theme of each grantee’s first grant
First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). 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
- TTTHE TRUSTEES OF THE SMITH COLLEGE6× · 2020–2025 · $3.2M · revenue +35%
- TKTHE KING'S ACADEMY INC3× · 2020–2022 · $1.5M · revenue +53%
- WSWATERSIDE SCHOOL INC6× · 2020–2025 · $462k · revenue +52%
Funded once
- HFHARTFORD FOUNDATION - HFPG INCone grant, 2020 · $500k
- PAPresident and Fellows of Middlebury Collegegraduatedone grant, 2020 · $250k · revenue +28%
- UJUNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INCgraduatedone grant, 2023 · $130k · revenue +34%
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
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…
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.
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.
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…
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
To educate students to be ethical and socially responsible leaders in a global community.
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.
For reference, the grantee most central to the portfolio’s shape is The New York Bar Foundation and 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.
For each theme you fund, this compares how the sector’s money is shifting with how your own giving is shifting.
Sector change and giving change are each shown relative to their own range, growing (right) or shrinking (left); both normalized, so inflation isn’t mistaken for growth.
Your grantees are a median of 44 years old; the field is 18. You back the established end — and your money leans older still.
The field is 19% startups (under 5 years old) — 2% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 10% of the field you don’t fund.
Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.
54 grantees tracked through their own filings, 2017–2025.
Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.
Counted here: distinct organizations you funded across 2017–2025, 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; the rest are funded organizations whose filings we could not track year by year.
Where your money sits — by cause, then by grantee
Each org by its size and your share of it — top-left is where you’re load-bearing
Go grantee by grantee — a decade per org, and how each moved after you funded them
A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.
- Who funds THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK ↗
- Who funds THE TRUSTEES OF THE SMITH COLLEGE ↗
- Who funds THE KING'S ACADEMY INC ↗
- Who funds MEMORIAL SLOAN-KETTERING CANCER CENTER ↗
- Who funds WATERSIDE SCHOOL INC ↗
- Who funds President and Fellows of Middlebury College ↗
- Who funds TRUSTEES OF DEERFIELD ACADEMY ↗
- Who funds ALEXANDER TWILIGHT ACADEMY INC ↗
- Who funds AMERICAN JEWISH COMMITTEE ↗
- Who funds UNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC ↗
- Who funds National Court Appointed Special Advocate Association ↗
- Who funds FAMILY CENTERS INC ↗
- Who funds LESLEY UNIVERSITY ↗
- Who funds THE TEAK FELLOWSHIP INC ↗
- Who funds CENTRAL PARK CONSERVANCY INC ↗
- Who funds CEREBRAL PALSY FOUNDATION INC ↗
- Who funds VAIL HEALTH SERVICES FOUNDATION ↗
- Who funds FRIENDS OF THE HIGH LINE INC ↗
- Who funds Teach for America Inc ↗
- Who funds JEWISH BOARD OF FAMILY & CHILDREN'S SERVICES INC ↗
- Who funds Social Impact Partners Inc ↗
- Who funds Parkinsons Wellness Foundation ↗
- Who funds BOYS & GIRLS CLUB OF GREENWICH ↗
- Who funds GUIDING EYES FOR THE BLIND INC ↗
- Who funds INNER CITY SCHOLARSHIP FUND INC ↗
- Who funds Cerebral Palsy Alliance Research Foundation ↗
The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.
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
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.
Government reliance of your grantees
Every dot is one organization The Peter a and Deborah L Weinberg Family Foundation funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal, a single department, or state — and drag the year to watch it move.
- 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
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 your grant caused the public funding. Coverage is precision-first — a floor, not 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 12–24 months.
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.