· Private foundation
Slone 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 FY2017–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k19 grants · $23k
- $10k–50k4 grants · $74k
- $50k–250k1 grant · $142k
| Recipient | Amount |
|---|---|
| NORTHWELL HEALTH | $142,300 |
| HADASSAH | $26,550 |
| BIRTH FOUNDATION | $20,000 |
| UNITED JEWISH APPEAL | $17,915 |
| BIRTH FOUNDATION | $10,000 |
| Individual grant recipient | $3,024 |
| THE VISCARDI CENTER | $3,000 |
| SID JACOBSON JCC | $2,625 |
| DROR FOR THE WOUNDED | $2,500 |
| MAKE A WISH FOUNDATION | $2,500 |
| ROCKLAND JEWISH CENTER | $1,800 |
| JACK'S RUN FOR AUTISM | $1,500 |
| Individual grant recipient | $1,000 |
| AMERICAN ACADEMY | $1,000 |
| PLAY FOR PINK | $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, $95k) land where the poverty rate runs at 9%, against an area that typically sits at 10%. 25% 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.
62 repeat relationships — 16 still active in FY2025, 46 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, 85% of grant dollars renewed an existing relationship; $36k 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
- NHNORTHWELL HEALTH FOUNDATION6× · 2018–2023 · $401k · revenue +12%
- SJSID JACOBSON JEWISH COMMUNITY CENTER9× · 2017–2025 · $70k · revenue +26%
- TVTHE VISCARDI CENTER INC8× · 2017–2025 · $21k · revenue +43%
Funded once
- NFNSLIJ FOUNDATIONone grant, 2017 · $43k
- NLNYU LANGONE MS PEDIATRICSone grant, 2021 · $30k
- BHBOCA HOSPITALone grant, 2024 · $30k
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…
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…
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…
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…
Our mission is to enable persons to live with peace and dignity in a caring environment during the final stages of life by offering care and comfort to both them and to those whom they share their lives.
Northern westchester hospital association 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;…
Plainview 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 clinical care; educating the current and future…
The mission is to enable residents to be independent through short-term rehabilitation, and to provide extended care to those who need it regardless of ability to pay.
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…
The mission of the jewish museum is to collect, preserve, exhibit and interpret art and jewish culture. see schedule o for more information.
Phelps memorial hospital association ("pmha") 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 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…
For reference, the grantee most central to the portfolio’s shape is Jewish Communal Fund and the most unlike its peers is Animal Lifeline Corp 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 29 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) — 5% 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.
42 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. 42 of the 159 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 NORTHWELL HEALTH FOUNDATION ↗
- Who funds SID JACOBSON JEWISH COMMUNITY CENTER ↗
- Who funds THE GIFT OF LIFE INC ↗
- Who funds THE VISCARDI CENTER INC ↗
- Who funds PLAY FOR PINK INC ↗
- Who funds ABILITIES INC ↗
- Who funds AMERICAN FRIENDS OF MAGEN DAVID ADOM ↗
- Who funds PET PEEVES INC ↗
- Who funds FRIENDS OF THE ISRAEL DEFENSE FORCES ↗
- Who funds THE GIFT OF LIFE CORPORATION ↗
- Who funds THE MOUNT SINAI HOSPITAL ↗
- Who funds DOROT 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: Jewish Communal Fund · The New York Community Trust · National Philanthropic Trust · Vanguard Charitable Endowment Program · Charities Aid Foundation America · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · The Bank of America Charitable Foundation Inc · Morgan Stanley Global Impact Funding Trust Inc · American Endowment Foundation · Donor Advised Charitable Giving Inc · Paypal Charitable Giving Fund · Fidelity Investments Charitable Gift Fund
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 Slone 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.
- Sharsheret Inc — 4% of income from government
- Jewish Association for Residential Care Inc — 1% 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 Slone Family Foundation?
Find your warmest path to Slone 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.