· Private foundation
The Slayton 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 $10k11 grants · $35k
- $10k–50k9 grants · $158k
| Recipient | Amount |
|---|---|
| JUPITER MEDICAL CENTER FOUNDATION | $30,000 |
| JBN FOUNDATION | $25,000 |
| CENTURION FOUNDATION | $25,000 |
| STRONG WINGS ADVENTURE SCHOOL | $20,000 |
| MHE RESEARCH FOUNDATION | $15,000 |
| NANTUCKET COTTAGE HOSPITAL FOUNDATION | $12,500 |
| SOUTH FLORIDA CRIME COMMISSION | $10,000 |
| TEMPLE JUDEA | $10,000 |
| POLICE OFFICER ASSISTANCE TRUST | $10,000 |
| BENJAMIN SCHOOL | $6,500 |
| ISRAEL TENNIS & EDUCATION CENTERS FOUNDATION | $5,000 |
| NANTUCKET HISTORICAL ASSOCIATION | $5,000 |
| FRIENDS OF ISRAEL DEFENSE FORCES | $3,600 |
| AUSCHWITZ JEWISH CENTER | $3,300 |
| ANN NORTON SCULPTURE GARDEN | $2,500 |
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 (FY17–24, $82k) land where the poverty rate runs at 15%, against an area that typically sits at 12%. 77% 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.
41 repeat relationships — 16 still active in FY2024, 25 since wound down; 4 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, 97% of grant dollars renewed an existing relationship; $7k 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
- CFCenturion Foundation Inc7× · 2017–2024 · $145k · revenue +13%
- TBTHE BENJAMIN PRIVATE SCHOOL INC3× · 2022–2024 · $112k · revenue +47%
- JMJupiter Medical Center Foundation Inc4× · 2020–2024 · $105k · revenue +95%
Funded once
- TETEMPLE EMANU-ELone grant, 2019 · $20k
- FOFRIENDS OF MASSACHUSETTS GENERALone grant, 2019 · $15k
- WIWASHINGTON INSTITUTE NEAR EAST POLICYone grant, 2019 · $15k
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…
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…
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…
Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.
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…
Northwell health is the parent company of a fully integrated health system that is committed to promote clinical care, health education, conduct biomedical research, and caring for the community regardless of ability to pay.
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…
Northeast college of health sciences (the college) is committed to academic excellence, leadership, and professional best practices in the health sciences.
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…
The mission of the jewish museum is to collect, preserve, exhibit and interpret art and jewish culture. see schedule o for more information.
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
For reference, the grantee most central to the portfolio’s shape is Israel Tennis Centers Foundation Inc and the most unlike its peers is Blue Force Strategies 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 43 years old; the field is 16. You back the established end — and your money leans older still.
The field is 22% startups (under 5 years old) — 5% of your grantees by number, and just 1% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 13% 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.
64 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. 64 of the 93 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 Centurion Foundation Inc ↗
- Who funds THE BENJAMIN PRIVATE SCHOOL INC ↗
- Who funds Jupiter Medical Center Foundation Inc ↗
- Who funds HORIZONS FOR HOMELESS CHILDREN ↗
- Who funds RANDALL'S ISLAND PARK ALLIANCE INC ↗
- Who funds The MHE Research Foundation ↗
- Who funds SOUTH FLORIDA CRIME COMMISSION INC ↗
- Who funds THE HEWITT SCHOOL ↗
- Who funds WASHINGTON INSTITUTE FOR NEAR EAST POLICY ↗
- Who funds Wildlife Conservation Society ↗
- Who funds SCHOOL OF AMERICAN BALLET INC ↗
- Who funds POLICE OFFICER ASSISTANCE TRUST ↗
- Who funds FRIENDS OF THE ISRAEL DEFENSE FORCES ↗
- Who funds NANTUCKET LAND & WATER COUNCIL INC ↗
- Who funds FAIRFIELD COUNTY HOSPICE HOUSE INC D/B/A FAIRFIELD COUNTY HOUSE ↗
- Who funds NORTHERN WESTCHESTER HOSPITAL ASSOCIATION ↗
- Who funds CENTRAL PARK CONSERVANCY INC ↗
- Who funds UNITED STATES OLYMPIC AND PARALYMPIC COMMITTEE ↗
- Who funds THE MCDAVID GROUP CHARITIES INC ↗
- Who funds ENVIRONMENTAL DEFENSE FUND INCORPORATED ↗
- Who funds BOSTON BALLET INC ↗
- Who funds BLUE FORCE STRATEGIES INC ↗
- Who funds White Plains Hospital Medical Center ↗
- Who funds NANTUCKET CONSERVATION FOUNDATION INC ↗
- Who funds MUSEUM OF FINE ARTS ↗
- Who funds FOUNDATION FOR SEPHARDIC STUDIES ↗
- Who funds ISRAEL TENNIS CENTERS FOUNDATION INC ↗
- Who funds NANTUCKET HISTORICAL ASSOCIATION ↗
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 Goldman Sachs Charitable Gift Fund · The Ayco Charitable Foundation · United Way Miami Inc · The Carl & Nancy Gewirz Fund Inc · The Joelson Foundation · Charina Foundation Inc Richard Menschel · Community Foundation for Palm Beach and Martin Counties Inc · The New York Community Trust · Bny Mellon Charitable Gift Fund · National Philanthropic Trust · Ibm International 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 The Slayton 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.
- The Hill House Inc — 28% of income from government
- Horizons for Homeless Children — 21% of income from government
- Nantucket Dreamland Foundation Inc — 4% of income from government
- Nantucket Conservation Foundation Inc — 4% of income from government
- The Institute of Contemporary Art Inc — 1% of income from government
- Nantucket Historical Association — 1% of income from government
- Boston Ballet Inc — 0% of income from government
- Museum of Fine Arts — 0% of income from government
- Place of Hope 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 Slayton Family Foundation?
Find your warmest path to The Slayton 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.