· Private foundation
The Spiros Segalas Charitable Trust
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
- $10k–50k1 grant · $36k
- $50k–250k3 grants · $375k
| Recipient | Amount |
|---|---|
| MEMORIAL SLOAN KETTERING CANCER | $125,000 |
| NEW YORK PRESBYTERIAN FUND INC | $125,000 |
| NORWALK HOSPITAL FOUNDATION INC | $125,000 |
| FUND FOR THE CITY OF NEW YORK | $35,744 |
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 (FY23–23, $10k) land where the poverty rate runs at 20%, against an area that typically sits at 12%. 100% 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.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +26% since the first grant, against +25% for the ones you funded once.
12 repeat relationships — 1 still active in FY2025, 11 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, 30% of grant dollars renewed an existing relationship; $286k 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
The Trustees of Princeton University5× · 2017–2022 · $250k · revenue +5%- NCNEW CANAAN EMS INC2× · 2022–2023 · $70k · revenue +61%
- TSTHE SPENCE SCHOOL4× · 2017–2020 · $70k · revenue +12%
Funded once
- FUFordham Universityone grant, 2023 · $500k · revenue +21%
- MHMary Hitchcock Memorial Hospitalgraduatedone grant, 2023 · $300k · revenue +34%
- TTTHE TAFT SCHOOL CORPORATIONgraduatedone grant, 2023 · $150k · revenue +69%
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.
Nyu is a private university with approximately 60,000 matriculating students in 20 schools and institutes. nyu's primary missions are education, research and scholarship, and patient care.
The University of New Haven is a student-centered comprehensive university with an emphasis on excellence in liberal arts and professional education. Our mission is to prepare our students to lead purposeful and fulfilling lives in a…
Northeast college of health sciences (the college) is committed to academic excellence, leadership, and professional best practices in the health sciences.
Seton hall university is a catholic institution of higher education
Western new england university, a comprehensive private institution with a tradition of excellence in teaching and scholarship and a commitment to service, awards undergraduate, master's, and doctoral degrees in various departments from…
The mission of ynhh is to provide innovative and excellent patient care, teaching, research, and service to the communities it serves.
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…
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
To educate students to be ethical and socially responsible leaders in a global community.
To be a leader in the provision of world class patient care, teaching, research, and service to local, state, national, and international communities. newyork-presbyterian hospital is one of the nation's most comprehensive, integrated…
Improve the health of every person in our community through the efficient delivery of excellent, innovative and compassionate care.
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 Fordham University and the most unlike its peers is Waveny Lifecare Network 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 51 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) — 0% of your grantees by number, and just 0% 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.
23 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. 23 of the 41 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 Norwalk Hospital Foundation ↗
- Who funds Fordham University ↗
- Who funds Mary Hitchcock Memorial Hospital ↗
- Who funds The Trustees of Princeton University ↗
- Who funds THE TAFT SCHOOL CORPORATION ↗
- Who funds Cornell University ↗
- Who funds NEW YORK-PRESBYTERIAN FUND INC ↗
- Who funds NEW CANAAN EMS INC ↗
- Who funds THE SPENCE SCHOOL ↗
- Who funds THE NEW CANAAN LIBRARY INC ↗
- Who funds Speare Memorial Hospital ↗
- Who funds FUSION ACADEMY SCHOLARSHIP FOUNDATION ↗
- Who funds FUND FOR THE CITY OF NEW YORK INC ↗
- Who funds AMERICAN UNIVERSITY ↗
- Who funds CENTRAL PARK CONSERVANCY INC ↗
- Who funds KING SCHOOL INC ↗
- Who funds NEW CANAAN COMMUNITY FOUNDATION INC ↗
- Who funds American Heart Association Inc ↗
- Who funds JOYFUL HEART FOUNDATION ↗
- Who funds GREENWICH HOSPITAL ↗
- Who funds NEW YORK JUNIOR TENNIS LEAGUE INC ↗
- Who funds THE WILLISTON NORTHAMPTON SCHOOL ↗
- Who funds MALTA HOUSE 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: Ge Aerospace Foundation · The Seelert Foundation Inc · Hobbs Family Charitable Trust · Syd & Jan M Silverman Foundation Inc · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · The Ayco Charitable Foundation · National Philanthropic Trust · American Express Foundation · Morgan Stanley Global Impact Funding Trust Inc · Vanguard Charitable Endowment Program · Jpmorgan Chase Foundation · The Pfizer 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 The Spiros Segalas Charitable Trust 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 Trustees of Princeton University — 11% of income from government
- Greenwich Hospital — 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.