· Private foundation
Jesse and Joan Kupferberg Family Foundation
Its FY2024 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 placed by its stated purpose and the recipient’s mission, by year — across FY2017–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k12 grants · $44k
- $10k–50k16 grants · $327k
- $50k–250k2 grants · $130k
| Recipient | Amount |
|---|---|
| BRANDEIS UNIVERSITY | $80,000 |
| NEW YORK HALL OF SCIENCE | $50,000 |
| ANTI-DEFAMATION LEAGUE | $40,000 |
| NICHOLAS CENTER LTD | $40,000 |
| PLANNED PARENTHOOD FEDERATION OF AMERICA INC | $35,000 |
| AMERICAN CIVIL LIBERTIES UNION FOUNDATION INC | $30,000 |
| UNITED JEWISH APPEAL FEDERATION OF JEWISH PHILANTH | $25,000 |
| NICHOLAS CENTER LTD | $25,000 |
| AUTISM SCIENCE FOUNDATION | $25,000 |
| NICHOLAS CENTER LTD | $20,000 |
| CENTRAL FUND OF ISRAEL | $15,000 |
| BRANDEIS UNIVERSITY | $12,000 |
| FRIENDS OF UNITED HATZALAH INC | $10,000 |
| AMERICAN FRIENDS OF MAGEN DAVID ADOM | $10,000 |
| NEW YORK ABORTION ACCESS FUND | $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 (FY19–24, $111k) land where the poverty rate runs at 18%, against an area that typically sits at 10%. 100% 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.
Where the work is directed
The same grants, placed two ways — where each recipient sits, and where its stated purpose earmarks the money.
About 20% of Jesse and Joan Kupferberg Family Foundation’s grant dollars are earmarked, by their stated purpose, for a different county than the recipient’s own address — money that lands at a nonprofit in one place but is meant to do its work in another.
Recipient view: each grant at its grantee’s ZIP, mapped to a county. Directed view: each grant at the county its stated purpose names, falling back to the recipient’s county when the purpose names no place; US grants only. A county shows only if it carries the top 95% of that view’s dollars. Purposes are read from the foundation’s own 990 grant descriptions.
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 +46% since the first grant, against +31% for the ones you funded once.
37 repeat relationships — 25 still active in FY2024, 12 since wound down; 1 grantees were first funded in FY2024 (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 FY2024, 99% of grant dollars renewed an existing relationship; $5k 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
- NYNEW YORK HALL OF SCIENCE7× · 2017–2024 · $350k · revenue +19%
- NCNICHOLAS CENTER LTD5× · 2020–2024 · $344k · revenue +155%
- ALANTI-DEFAMATION LEAGUE8× · 2017–2024 · $300k · revenue +78%
Funded once
- FOFRIENDS OF THE SCARSDALE LIBRARY INCone grant, 2017 · $50k · revenue -84%
- NLNYU LANGONE HEALTH SYSTEMone grant, 2019 · $25k · revenue -39%
- EIEVNY INCone grant, 2019 · $5k · revenue -100%
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.
Long island jewish medical center is part of the northwell health ("northwell"), which strives to improve the health of the communities it serves and is committed to providing the highest quality clinical care; educating the current and…
Committed to exceptional healthcare quality for all and actively engaged with our community, einstein drives scientific discovery and educates compassionate leaders in health and science.
Mjhs health system is a charitable not-for-profit established to support the activities of affiliated organizations. mjhs is built on the core values of compassion, dignity and respect, first established by the four brooklyn ladies in…
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
See schedule othe organization is a not-for-profit, public charity established in 1911 to provide for the quality and continuity of jewish life in western new york and around the world through private philanthropy. the foundation seeks,…
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.
Operate a state-of-the-art, world-class genomic research center that creates and uses advanced genomics to understand the genetic basis of disease. for more information, see schedule o.
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.
Jcrc-ny builds relationships to advance the values, interests and security of the new york jewish community and to create a more interconnected new york for all.
For reference, the grantee most central to the portfolio’s shape is Next for Autism Inc and the most unlike its peers is New York Hall of Science. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
Your grantees are a median of 39 years old; the field is 17. You back the established end — and your money leans older still.
The field is 19% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 11% 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.
45 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. 45 of the 49 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 BRANDEIS UNIVERSITY ↗
- Who funds NEW YORK HALL OF SCIENCE ↗
- Who funds NICHOLAS CENTER LTD ↗
- Who funds Solomon Schechter School of Manhattan ↗
- Who funds ANTI-DEFAMATION LEAGUE ↗
- Who funds AMERICAN CIVIL LIBERTIES UNION FOUNDATION INC ↗
- Who funds PLANNED PARENTHOOD FEDERATION OF AMERICA INC ↗
- Who funds AUTISM SCIENCE FOUNDATION ↗
- Who funds MATAN INC ↗
- Who funds SPECTRUM DESIGNS FOUNDATION LTD ↗
- Who funds RAMAPO FOR CHILDREN INC ↗
- Who funds FRIENDS OF THE SCARSDALE LIBRARY INC ↗
- Who funds UNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC ↗
- Who funds NEW YORK COMMON PANTRY ↗
- Who funds NEW YORK ABORTION ACCESS FUND ↗
- Who funds NEXT FOR AUTISM INC ↗
- Who funds HIAS INC ↗
- Who funds Central Fund of Israel ↗
- Who funds OCEAN CONSERVANCY ↗
- Who funds PRO PUBLICA INC ↗
- Who funds SOUTHERN POVERTY LAW CENTER INC ↗
- Who funds Yellowhammer Fund ↗
- Who funds NYU LANGONE HEALTH SYSTEM ↗
- Who funds MET COUNCIL HOMECARE SERVICES ↗
- Who funds Citizens United for Research in Epilepsy ↗
- Who funds AMERICAN FRIENDS OF MAGEN DAVID ADOM ↗
- Who funds FRIENDS OF UNITED HATZALAH INC ↗
- Who funds FOUNDATION FOR EDUCATING CHILDREN WITH AUTISM INC ↗
- Who funds YES SHE CAN INCORPORATED ↗
- Who funds NYU LANGONE HOSPITALS ↗
- Who funds THE NEW YORK TIMES COMMUNITIES FUND ↗
- Who funds DOROT INC ↗
- Who funds NEW YORK GILBERT & SULLIVAN PLAYERS INC ↗
- Who funds FOOTSTEPS INC ↗
- Who funds EVNY INC ↗
- Who funds SUNRISE MOVEMENT EDUCATION FUND ↗
- Who funds REPRODUCTIVE FREEDOM FOR ALL FOUNDATION ↗
- Who funds METROPOLITAN NEW YORK COORDINATING COUNCIL ON JEWISH POVERTY ↗
- Who funds HUMAN RIGHTS CAMPAIGN 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: Jewish Communal Fund · Open Society Institute · Fjc · Vanguard Charitable Endowment Program · Morgan Stanley Global Impact Funding Trust Inc · The Bank of America Charitable Foundation Inc · Donor Advised Charitable Giving Inc · National Philanthropic Trust · Network for Good · Fidelity Investments Charitable Gift Fund · American Online Giving Foundation Inc · Amazonsmile Foundation
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 Jesse and Joan Kupferberg 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 or a single department — and drag the year to watch it move.
- Hias Inc — 88% of income from government
- Brandeis University — 9% 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 Jesse and Joan Kupferberg Family Foundation?
Find your warmest path to Jesse and Joan Kupferberg 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.