· Private foundation
Joan & Leonard Baron Foundation Inc
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
By grantee IRS cause code (NTEE).
A cause breakdown isn’t shown here: 55% of JOAN & LEONARD BARON FOUNDATION INC’s grantee dollars fall outside its nine largest cause areas, whether because the recipient carries no IRS cause code or because its cause sits in the long tail. A chart would be mostly one residual band and misrepresent the portfolio.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k16 grants · $25k
- $10k–50k1 grant · $19k
| Recipient | Amount |
|---|---|
| Individual grant recipient | $18,500 |
| SOUTHAMPTON ANIMAL SHELTER | $5,000 |
| SASF | $4,000 |
| SOUTHAMPTON ARTS CENTER | $2,500 |
| ROGERS MEMORIAL LIBRARY | $2,000 |
| HEART OF THE HAMPTONS | $1,775 |
| NORTHWELL HEALTH FOUNDATION | $1,600 |
| Individual grant recipient | $1,500 |
| ELLUMINATE | $1,500 |
| Individual grant recipient | $1,000 |
| SUPPLIES FOR SUCCESS | $1,000 |
| GENERATION SOS | $1,000 |
| RML FOUNDATION | $500 |
| ALS UNITED GREATER NEW YORK | $500 |
| DOCUMENTING HOPE | $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 (FY19–24, $8k) land where the poverty rate runs at 16%, against an area that typically sits at 10%. 87% 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.
19 repeat relationships — 4 still active in FY2024, 15 since wound down; 11 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, 9% of grant dollars renewed an existing relationship; $40k 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
- ADALZHEIMER'S DISEASE & RELATED DISORDERS ASSOCIATION INC2× · 2021–2022 · $10k · revenue +13%
- PAPEN AMERICAN CENTER INC4× · 2019–2023 · $8k · revenue +30%
- TITHE INNOCENCE PROJECT INC3× · 2020–2022 · $6k · revenue +75%
Funded once
- FHFURNISHING HOPE OF MAone grant, 2023 · $5k
- BMBONE MARROW & CANCER FOUNDATION INCone grant, 2023 · $4k · revenue -1%
- UJUNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INCone grant, 2018 · $3k · revenue +22%
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.
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.
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 clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
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…
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,…
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.
The mission of the jewish museum is to collect, preserve, exhibit and interpret art and jewish culture. see schedule o for more information.
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…
Inspired by the gift of donation from our communities, allosource responsibly provides innovative cellular and tissue allografts to advance patient healing.
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
For reference, the grantee most central to the portfolio’s shape is Syracuse University and the most unlike its peers is Rml Foundation. 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 33 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) — 3% of your grantees by number, and just 1% of your money.
The orgs you fund almost never close — 0.0% 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.
32 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. 32 of the 60 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 Evelyn Alexander Wildlife Rescue Center Inc ↗
- Who funds ALZHEIMER'S DISEASE & RELATED DISORDERS ASSOCIATION INC ↗
- Who funds PEN AMERICAN CENTER INC ↗
- Who funds OCEANA INC ↗
- Who funds THE INNOCENCE PROJECT INC ↗
- Who funds Documenting Hope Inc ↗
- Who funds THE SOUTHAMPTON ANIMAL SHELTER FOUNDATION INC ↗
- Who funds BONE MARROW & CANCER FOUNDATION INC ↗
- Who funds ROGERS MEMORIAL LIBRARY ↗
- Who funds THE ALLEN-STEVENSON SCHOOL ↗
- Who funds CENTRAL PARK CONSERVANCY INC ↗
- Who funds UNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC ↗
- Who funds SCOA INC ↗
- Who funds CARL SCHURZ PARK CONSERVANCY INC ↗
- Who funds Young Leadership Addiction Awareness Inc ↗
- Who funds HEART OF THE HAMPTONS LTD ↗
- Who funds NORTHWELL HEALTH FOUNDATION ↗
- Who funds ELLUMINATE INC ↗
- Who funds WORLD MONUMENTS FUND 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 · Lorber Charitable Fund · Yaffa Foundation Inc · Martin D & Jean Shafiroff Foundation · The New York Community Trust · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · The Goldman Sachs Charitable Gift Fund · National Philanthropic Trust · Morgan Stanley Global Impact Funding Trust Inc · The Bank of America Charitable Foundation Inc · Vanguard Charitable Endowment Program · 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 Joan & Leonard Baron Foundation Inc 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.
- Miami Music Project Inc — 2% 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 Joan & Leonard Baron Foundation Inc?
Find your warmest path to Joan & Leonard Baron Foundation Inc 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.