· Private foundation
David & Sheila Cornstein 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 placed by its stated purpose and the recipient’s mission, by year — across FY2017–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k15 grants · $38k
- $10k–50k3 grants · $60k
| Recipient | Amount |
|---|---|
| PARK EAST SYNAGOGUE (CANTOR B ROGOSNITZKY) | $20,000 |
| HORACE MANN SCHOOL | $20,000 |
| NEW YORK LAW SCHOOL | $20,000 |
| BRUCE AND MARSHA MOSKOWITZ FOUNDATION INC | $7,500 |
| Individual grant recipient | $6,000 |
| UPPER EAST SIDE HATZOLAH | $5,000 |
| CHEMOTHERARPY FOUNDATION | $5,000 |
| TUNNEL TO TOWERS FOUNDATION | $2,500 |
| BREAST CANCER RESEARCH FOUNDATION | $2,500 |
| KENNY GORDON FOUNDATION | $2,000 |
| THE CHEMOTHERAPY FOUNDATION | $1,000 |
| SAVE A CHILDS HEART | $1,000 |
| MARISA POSTER KIDS FOR KIDS FOUNDATION | $1,000 |
| CROHN'S & COLITIS FOUNDATION OF AMERICA | $1,000 |
| RENEWAL OF LIFE INC | $1,000 |
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 (FY17–25, $52k) land where the poverty rate runs at 11%, against an area that typically sits at 10%. 97% 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.
39 repeat relationships — 13 still active in FY2025, 26 since wound down; 4 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, 96% of grant dollars renewed an existing relationship; $4k 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
- HMHorace Mann School9× · 2017–2025 · $406k · revenue +21%
- NYNEW YORK LAW SCHOOL6× · 2017–2025 · $93k · revenue +63%
- MFMORSELIFE FOUNDATION INC8× · 2017–2024 · $48k · revenue +18%
Funded once
- NYNew York Universitygraduatedone grant, 2020 · $5k · revenue +45%
- JCJEWISH COMMUNITY RELATIONS COUNCILone grant, 2021 · $5k
- NSNATIONAL SEPTEMBER 11 MEMORIAL AND MUSEUM AT THE WORLD TRADE CENTERgraduatedone grant, 2018 · $5k · revenue +147%
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 mission of the jewish museum is to collect, preserve, exhibit and interpret art and jewish culture. see schedule o for more information.
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…
Sanford burnham prebys medical discovery institute's mission is to advance the biomedical sciences by cultivating the next generation of scientific leaders, providing meaningful opportunities for researchers of all backgrounds to learn,…
The institute for advanced study (the institute) is one of the world's leading centers for theoretical research and intellectual inquiry. see schedule o.
The board adopted mission statement is: nyu langone hospitals (the "hospital") will operate with new york university's medical schools a health system ("nyu langone health") devoted to excellence in patient care, education and research. in…
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.
The museum of jewish heritage - a living memorial to the holocaust is new york's contribution to the global responsibility to never forget. see schedule o for additional information.
Lenox hill hospital is part of 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 future generations…
North shore university hospital is part of 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 future…
For reference, the grantee most central to the portfolio’s shape is Jewish Federation of Palm Beach County Inc and the most unlike its peers is Marisa Poster Kids for Kids Foundation Inc. 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 37 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) — 0% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 2% 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.
57 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. 57 of the 85 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 Horace Mann School ↗
- Who funds NEW YORK LAW SCHOOL ↗
- Who funds MORSELIFE FOUNDATION INC ↗
- Who funds Town of Palm Beach United Way Inc ↗
- Who funds UNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC ↗
- Who funds THE BREAST CANCER RESEARCH FOUNDATION INC ↗
- Who funds MARINE CORPS-LAW ENFORCEMENT FOUNDA FOUNDATION INC ↗
- Who funds Cornell University ↗
- Who funds BRUCE AND MARSHA MOSKOWITZ FOUNDATION INC ↗
- Who funds COURTS OF DREAMS INC ↗
- Who funds KENNY GORDON FOUNDATION ↗
- Who funds FRIENDS OF THE ISRAEL DEFENSE FORCES ↗
- Who funds THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK ↗
- Who funds THE CHEMOTHERAPY FOUNDATION INC ↗
- Who funds Upper East Side Hatzolah Inc ↗
- Who funds New York University ↗
- Who funds COUNCIL OF AMERICAN AMBASSADORS ↗
- Who funds STEPHEN SILLER TUNNEL TO TOWERS FOUNDATION ↗
- Who funds NATIONAL SEPTEMBER 11 MEMORIAL AND MUSEUM AT THE WORLD TRADE CENTER ↗
- Who funds FRIENDS OF UNITED HATZALAH INC ↗
- Who funds CROHN'S & COLITIS FOUNDATION INC ↗
- Who funds BIRTHRIGHT ISRAEL FOUNDATION ↗
- Who funds SOLOMON R GUGGENHEIM FOUNDATION ↗
- Who funds NAVY SEAL FOUNDATION INC ↗
- Who funds FACES NY INC FACES NY INC ↗
- Who funds LAFAYETTE COLLEGE ↗
- Who funds BLOOD CANCER UNITED INC ↗
- Who funds ISRAEL HUMANITARIAN FOUNDATION INC ↗
- Who funds ISRAEL TENNIS CENTERS FOUNDATION INC ↗
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 Pfizer Foundation Inc · Jpmorgan Chase Foundation · National Philanthropic Trust · The Blackbaud Giving Fund · The Bank of America Charitable Foundation Inc · American Endowment Foundation · Paypal Charitable Giving Fund · Vanguard Charitable Endowment Program · Network for Good · Donor Advised Charitable Giving 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 David & Sheila Cornstein 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.
- Dana-Farber Cancer Institute Inc — 7% of income from government
- Florida Sheriffs Association Inc — 4% of income from government
- Wounded Warrior Project 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 David & Sheila Cornstein Foundation?
Find your warmest path to David & Sheila Cornstein 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.