· Private foundation
Thomas E Sullivan and Barbara a Sullivan Foundation
Its FY2025 filing reports that it accepted unsolicited grant applications.
What you funded, over time
By grantee IRS cause code (NTEE).
A cause breakdown isn’t shown here: 72% of THOMAS E SULLIVAN AND BARBARA A SULLIVAN FOUNDATION’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 · FY2025
- Under $10k16 grants · $21k
- $10k–50k3 grants · $47k
| Recipient | Amount |
|---|---|
| THE EPIPHANY SCHOOL FOUNDATION | $25,000 |
| ST ANNE'S CHURCH | $12,000 |
| HUDSON INSTITUTE | $10,000 |
| NYU LANGONE | $5,500 |
| GARDEN CITY ATHL ASSOC CHALL DIVISI | $3,000 |
| HOLY CROSS HIGH SCHOOL | $2,500 |
| HAGEDORN LITTLE VILLAGE SCHOOL | $1,000 |
| JACK FANNING MEMORIAL FOUNDATION | $1,000 |
| LIFE'S ANGELS | $1,000 |
| JL CARES | $1,000 |
| ST JOSEPH'S CHURCH | $1,000 |
| Individual grant recipient | $1,000 |
| TOMORROWS HOPE FOUNDATION | $1,000 |
| Individual grant recipient | $555 |
| TUNNEL TO TOWERS | $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.
Dollar for dollar, your grants (FY24–25) land where the poverty rate runs at 11%, against an area that typically sits at 10%. 54% of your dollars go to grantees based in above-average-need neighborhoods. Your grants spread fairly evenly across need levels.
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 — 12 still active in FY2025, 29 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; $10k 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
- TETHE EPIPHANY SCHOOL FOUNDATION INC2× · 2024–2025 · $40k · revenue +20%
- HIHudson Institute Inc3× · 2022–2025 · $30k · revenue +166%
- GCGARDEN CITY ATHLETIC ASSOCIATION3× · 2017–2019 · $9k · revenue +55%
Funded once
- DRDIABETES RESEARCH INSTITUTE FOUNDATION INCone grant, 2022 · $10k · revenue -1%
- VOVILLAGE OF HEMPSTEAD PAL INCone grant, 2024 · $6k · revenue 0%
- TATHE ACADEMY CHARTER SCHOOLgraduatedone grant, 2020 · $5k · revenue +129%
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.
The mission of staten island university hospital's foundation is to achieve philanthropic relationships for support and endowment, providing highest quality care, services and state of the art equipment. philanthropy has played an…
Provider of pediatric healthcare, education, research & community service
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…
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…
Leadership in the prevention, treatment, and cure of cancer through excellence, vision and cost effectiveness in patient care, outreach programs, research, and education.
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…
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 more than 125 years, the mission of the johns hopkins hospital has been to lead the world in the diagnosis and treatment of disease and to train tomorrow's great physicians, nurses and scientists. above all, we aim to provide the…
The goals and objectives of the foundation are as follows:to support the mission and charitable purposes of nyulhs, nyu langone hospitals ("nyulh"), lich and the medical schools owned and operated by new york university (collectively, "nyu…
The goals and objectives of the corporation are as follows:(a) to operate and maintain a nonsectarian, general hospital at one or more locations for the furnishing of inpatient, ambulatory, restorative, preventative and emergency medical…
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…
For reference, the grantee most central to the portfolio’s shape is St Baldrick's Foundation Inc and the most unlike its peers is Garden City Real Estate Professionals 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 28 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) — 4% 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.
47 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. 47 of the 102 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 THE EPIPHANY SCHOOL FOUNDATION INC ↗
- Who funds Hudson Institute Inc ↗
- Who funds MAKE IT COUNT FOUNDATION ↗
- Who funds MOLLIE BIGGANE MELANOMA FOUNDATION INC ↗
- Who funds DIABETES RESEARCH INSTITUTE FOUNDATION INC ↗
- Who funds GARDEN CITY ATHLETIC ASSOCIATION ↗
- Who funds THE HAGEDORN LITTLE VILLAGE SCHOOL ↗
- Who funds UNITED SOUTH END SETTLEMENTS ↗
- Who funds VILLAGE OF HEMPSTEAD PAL INC ↗
- Who funds SHATTERPROOF A NONPROFIT CORPORATION ↗
- Who funds LONG ISLAND SLED HOCKEY INC ↗
- Who funds THE ACADEMY CHARTER SCHOOL ↗
- Who funds NYU WINTHROP HOSPITAL ↗
- Who funds Andy Foundation ↗
- Who funds GARDEN CITY FIRE DEPARTMENT INC ↗
- Who funds BIG BROTHERS BIG SISTERS OF LONG ISLAND INC ↗
- Who funds STEPHEN SILLER TUNNEL TO TOWERS FOUNDATION ↗
- Who funds MEDISYS HEALTH NETWORK INC ↗
- Who funds MONMOUTH UNIVERSITY INC ↗
- Who funds LIFES ANGELS INC co Brett Dunne ↗
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: Mutual of America Foundation · The NEIL&AMY McGoldrick Charitable Foundation · McKeen Fund · The Goldman Sachs Charitable Gift Fund · The Pfizer Foundation Inc · Morgan Stanley Global Impact Funding Trust Inc · The Bank of America Charitable Foundation Inc · National Philanthropic Trust · American Endowment Foundation · Network for Good · Vanguard Charitable Endowment Program · American Online Giving Foundation 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 Thomas E Sullivan and Barbara a Sullivan 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.
- Shatterproof a Nonprofit Corporation — 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 Thomas E Sullivan and Barbara a Sullivan Foundation?
Find your warmest path to Thomas E Sullivan and Barbara a Sullivan 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.