· Private foundation
Sheiffer 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 placed by its stated purpose and the recipient’s mission, by year — across FY2018–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k6 grants · $31k
- $10k–50k2 grants · $29k
| Recipient | Amount |
|---|---|
| CLEVELAND CLINIC | $18,850 |
| PBMC FOUNDATION | $10,000 |
| TEMPLE BETH ISRAEL | $8,050 |
| VERO BEACH ART MUSEUM | $7,000 |
| Individual grant recipient | $6,600 |
| ST MARK'S CHURCH | $5,000 |
| VARIOUS ORGANIZATIONS | $3,355 |
| THE SOCIETY OF THE FOUR ARTS | $1,115 |
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 (FY19–19, $500) land where the poverty rate runs at 7%, against an area that typically sits at 7%. 0% of those dollars go to grantees based in above-average-need neighborhoods. Your grants skew toward lower-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 +75% since the first grant, against +28% for the ones you funded once.
20 repeat relationships — 5 still active in FY2025, 15 since wound down; 3 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, 75% of grant dollars renewed an existing relationship; $15k 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
- TBTEMPLE BETH ISRAEL OF PORT WASHINGT ON4× · 2022–2025 · $114k
- PBPECONIC BAY HOSPITAL3× · 2019–2023 · $70k
- SMST MARKS CHURCH4× · 2018–2022 · $39k
Funded once
- IRINDIAN RIVER MEMORIAL HOSPITAL INCone grant, 2019 · $43k
- JMJANET MCCARTY ALS FUNDone grant, 2022 · $40k
- TMTHE MACULA FOUNDATION INCone grant, 2018 · $13k · revenue -86%
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.
Northwell health foundation inc. is dedicated toward helping donors, patients, and leaders link their vision and philanthropic support toward helping the underserved and uninsured, advancing the latest frontiers in medical technology and…
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…
South 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…
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…
Glen cove hospital is part of northwell health, inc. ("northwell"), which strives to improve the health of the communities it serves and is committed to providing the highest quality geriatric care; educating the current and future…
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 feinstein institute for medical research ("the institute") is the research branch of northwell health ("northwell"). through its affiliation with northwell, the institute's mission is to bridge the gap between biomedical research and…
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…
Staten island university hospital is an affiliate within northwell health, inc. ("northwell"), which strives to improve the health of the communities it serves and is committed to providing the highest quality clinical care; educating the…
John t. mather memorial hospital ("mather") is a non-profit community hospital that is part of northwell health. mather strives to improve the health of the communities it serves and is committed to providing the highest quality clinical…
Northwell healthcare inc. coordinates policy making and strategic planning by providing advisory and administrative support services to affiliated health care organizations within northwell health; whose mission is to improve the health of…
THE MASSACHUSETTS EYE AND EAR INFIRMARY ("THE INFIRMARY") IS A NOT-FOR-PROFIT TEACHING HOSPITAL CONDUCTING PATIENT CARE AND RESEARCH. THE INFIRMARY IS A TEACHING HOSPITAL OF HARVARD MEDICAL SCHOOL AND AN INTERNATIONAL CENTER FOR RESEARCH.…
For reference, the grantee most central to the portfolio’s shape is Broadcasters Foundation of America and the most unlike its peers is Shalvah Foundation. 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 51 years old; the field is 16. You back the established end — and your money leans older still.
The field is 20% startups (under 5 years old) — 9% of your grantees by number, and just 5% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 12% 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.
18 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. 18 of the 69 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 INDIAN RIVER MEMORIAL HOSPITAL INC ↗
- Who funds RIVERSIDE THEATRE INC ↗
- Who funds THE MACULA FOUNDATION INC ↗
- Who funds SHALVAH FOUNDATION ↗
- Who funds THE FOUNDATION FIGHTING BLINDNESS INC ↗
- Who funds THE JOHN'S ISLAND FOUNDATION INC ↗
- Who funds FASHION INSTITUTE OF TECHNOLOGY FOUNDATION ↗
- Who funds The Society of the Four Arts Inc ↗
- Who funds PBS 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: Morgan Stanley Global Impact Funding Trust Inc · Vanguard Charitable Endowment Program · National Philanthropic Trust · Fidelity Investments Charitable Gift Fund · Donor Advised Charitable Giving 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 Sheiffer 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.
- Dana-Farber Cancer Institute Inc — 7% of income from government
- Jupiter Medical Center Inc — 2% of income from government
- South Florida Pbs 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.