· Private foundation
Martin & Toni Sosnoff 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 $10k3 grants · $9k
- $10k–50k9 grants · $228k
- $50k–250k1 grant · $170k
- $250k+5 grants · $1.8M
| Recipient | Amount |
|---|---|
| MOUNT SINAI HEALTH SYSTEM | $575,000 |
| NDH FOUNDATION | $400,000 |
| NEW YORK PHILHARMONIC | $334,000 |
| ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI | $250,000 |
| BARD COLLEGE | $250,000 |
| PALM BEACH OPERA | $170,000 |
| CHAMBER MUSIC SOCIETY OF PALM BEACH | $40,000 |
| NORTON MUSEUM OF ART | $38,000 |
| PALM BEACH DRAMAWORKS | $30,000 |
| ASPCA | $25,000 |
| MIAMI CITY BALLET | $25,000 |
| KRAVIS CENTER FOR THE PERFORMING ARTS | $25,000 |
| THE EYE CANCER FOUNDATION | $20,000 |
| HOFSTRA UNIVERSITY | $15,000 |
| ALZHEIMER DRUG DISCOERY FOUNDATION | $10,000 |
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 (FY19–25, $2.6M) land where the poverty rate runs at 17%, 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 +67% since the first grant, against +45% for the ones you funded once.
41 repeat relationships — 17 still active in FY2025, 24 since wound down; 1 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, 100% of grant dollars renewed an existing relationship; $2k 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
BARD COLLEGE9× · 2017–2025 · $7.2M · revenue +256%- MSMOUNT SINAI HEALTH SYSTEM INC5× · 2019–2025 · $2.6M · revenue +34%
ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI8× · 2017–2025 · $2.2M · revenue +58%
Funded once
- TWTHE WASHINGTON BALLETgraduatedone grant, 2017 · $100k · revenue +46%
- TETHE ELF CANCER FOUNDATIONone grant, 2024 · $20k
- MSMOUNT SINAI HEALTH SYSTEM CRYSTAL PARTYone grant, 2018 · $10k
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.
We believe opera is a uniquely compelling, entertaining and emotionally thrilling art form. our mission is to bring together growing audiences to experience opera's transformative power.
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.
Perform, promote and sustain classical ballet.
Princeton ballet society's mission is to nurture a lifelong love of dance and lift the collective spirit through excellent, relevant, and accessible artistic and educational programs, with a focus on classical ballet.
The institute for advanced study (the institute) is one of the world's leading centers for theoretical research and intellectual inquiry. see schedule o.
Sanford burnham prebys medical discovery institute's mission is to advance the biomedical sciences by cultivating the next generation of scientific leaders, providing meaningful opportunities for researchers of all backgrounds to learn,…
THE MASSACHUSETTS EYE AND EAR INFIRMARY ("THE INFIRMARY") IS A NOT-FOR-PROFIT TEACHING HOSPITAL CONDUCTING PATIENT CARE AND RESEARCH. THE INFIRMARY IS A TEACHING HOSPITAL OF HARVARD MEDICAL SCHOOL AND AN INTERNATIONAL CENTER FOR RESEARCH.…
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
Mission: to heal, to teach, to discover and to advance the health of the communities we serve. values: humanity, innovation, teamwork, diversity and equity - our values define our philosophy of care. they shape our actions and motivate and…
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…
Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.
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.
For reference, the grantee most central to the portfolio’s shape is The Philharmonic Symphony Society of Ny Inc and the most unlike its peers is Boscobel Restoration 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 40 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) — 0% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 3% 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.
40 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. 40 of the 57 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 BARD COLLEGE ↗
- Who funds BALLET THEATRE FOUNDATION INC ↗
- Who funds MOUNT SINAI HEALTH SYSTEM INC ↗
- Who funds ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI ↗
- Who funds HOFSTRA UNIVERSITY ↗
- Who funds PALM BEACH OPERA INC ↗
- Who funds THE PHILHARMONIC SYMPHONY SOCIETY OF NY INC ↗
- Who funds NDH Foundation ↗
- Who funds Boca Raton Regional Hospital Foundation Inc ↗
- Who funds CHAMBER MUSIC SOCIETY OF PALM BEACH INC ↗
- Who funds Boca Raton Regional Hospital Inc ↗
- Who funds NEW YORK-PRESBYTERIAN FUND INC ↗
- Who funds PALM BEACH DRAMAWORKS INC ↗
- Who funds RAYMOND F KRAVIS CENTER FOR THE PERFORMING ARTS INC ↗
- Who funds MIAMI CITY BALLET INC ↗
- Who funds Town of Palm Beach United Way Inc ↗
- Who funds NORTON MUSEUM OF ART INC ↗
- Who funds The Eye Cancer Foundation Inc ↗
- Who funds THE WASHINGTON BALLET ↗
- Who funds LUZERNE MUSIC CENTER INC ↗
- Who funds SAINT ANN'S SCHOOL ↗
- Who funds THE AMERICAN SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS ↗
- Who funds HUNTS POINT ALLIANCE FOR CHILDREN ↗
- Who funds THE ANIMAL MEDICAL CENTER ↗
- Who funds THE PERLMAN MUSIC PROGRAM INC ↗
- Who funds TAKE THE LEAD INC ↗
- Who funds THE DRESSAGE FOUNDATION ↗
- Who funds GEORGETOWN DAY SCHOOL ↗
- Who funds BOSCOBEL RESTORATION INC ↗
- Who funds HEAD STRONG PROJECT 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 · National Philanthropic Trust · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · Vanguard Charitable Endowment Program · The Bank of America Charitable Foundation Inc · Network for Good · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile 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 Martin & Toni Sosnoff 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.
- Dana-Farber Cancer Institute Inc — 7% 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.