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· 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.

$2.2M
Granted FY2025still arriving
18
Grants FY2025still arriving
3
States reached
$575k
Largest
01What it funds
0198% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Education$9.0MHealth$8.8MArts & Culture$7.8MReligion$334kPhilanthropy$167kAnimals$60kFood & Nutrition$15kRecreation & Sports$15kOther$0
02FY2025 · 18 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k3 grants · $9k
  • $10k–50k9 grants · $228k
  • $50k–250k1 grant · $170k
  • $250k+5 grants · $1.8M
$30,000
Median grant
3
States reached
$8.7M
Total assets
Largest grants
RecipientAmount
MOUNT SINAI HEALTH SYSTEM$575,000
NDH FOUNDATION$400,000
NEW YORK PHILHARMONIC$334,000
BARD COLLEGE$250,000
ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI$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
KRAVIS CENTER FOR THE PERFORMING ARTS$25,000
ASPCA$25,000
MIAMI CITY BALLET$25,000
THE EYE CANCER FOUNDATION$20,000
HOFSTRA UNIVERSITY$15,000
ALZHEIMER DRUG DISCOERY FOUNDATION$10,000
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Its 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 its grants land in higher-need ZIPs.

area typical 12%MOUNT SINAI HEALTH SYSTEM: $700k → 17%MOUNT SINAI HEALTH SYSTEM: $575k → 17%MOUNT SINAI HEALTH SYSTEM: $450k → 17%MOUNT SINAI HEALTH SYSTEM: $425k → 17%MOUNT SINAI HEALTH SYSTEM: $425k → 17%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.

Which US states its grants reach

NY
MA
NV
PA
NJ
CA
NE
NC
DC
FL
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

99%of every dollar goes to organizations it has funded before.
$26M · 41 repeat orgs$157k to everyone else

Grantees it renews have grown median revenue +58% since the first grant, against +45% for those 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

Re-uppedFunded once

Organizations

41
15

Total granted

$26M
$155k

Median revenue growth · since first grant

+58%
+45%

Still filing today

76%
47%

New vs renewed · share of each year

In FY2025, 100% of grant dollars renewed an existing relationship; $2k went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’17’18’19’20’21’22’23’24’25
Arts & CultureHealthEducationAnimalsPhilanthropyYouth DevelopmentOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). 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 COLLEGE
    9× · 2017–2025 · $7.2M · revenue +256%
  • MS
    MOUNT SINAI HEALTH SYSTEM INC
    5× · 2019–2025 · $2.6M · revenue +34%
  • ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
    8× · 2017–2025 · $2.2M · revenue +58%

Funded once

  • TW
    THE WASHINGTON BALLETgraduated
    one grant, 2017 · $100k · revenue +46%
  • TE
    THE ELF CANCER FOUNDATION
    one grant, 2024 · $20k
  • MS
    MOUNT SINAI HEALTH SYSTEM CRYSTAL PARTY
    one grant, 2018 · $10k
How this is measured

Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.

04Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

1
San Francisco Opera Association

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.

Arts & Culture
2
New York University

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.

Education
3
New York City Ballet Inc

Perform, promote and sustain classical ballet.

Arts & Culture
4
Princeton Ballet Society

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.

Arts & Culture
5
Institute for Advanced Study - Louis Bamberger & Mrs Felix Fuld Foundation

The institute for advanced study (the institute) is one of the world's leading centers for theoretical research and intellectual inquiry. see schedule o.

Science & Tech
6
Sanford Burnham Prebys Medical Discovery Institute

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,…

Health
7
Massachusetts Eye & Ear Infirmary

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.…

Health
8
Stony Brook Ophthalmology University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
9
Montefiore New Rochelle Hospital

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…

Health
10
The New York and Presbyterian Hospital

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…

Health
11
Stony Brook Surgical Associates University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
12
New York Genome Center Inc

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.

Health
How this is measured
The grantee most central to the portfolio’s shape is The Philharmonic Symphony Society of Ny Inc; 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.
04the grantee network

40 grantees tracked through their own filings, 2017–2025.

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 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.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

0
Load-bearing (≥25% of a budget)
15
Early backer (in before they grew)
39/40
Grantees still filing
32/40
Grew since first funded

Where the money sits, by cause and then by grantee

BARD COLLEGE: $7,222,260 · EducationBARD COLLEGEICAHN SCHOOL OF MEDICINE AT MOUNT SINAI: $2,155,000 · EducationICAHN SCHOOL OF MEDICINE AT MOUNT SINAIHOFSTRA UNIVERSITY: $1,645,000 · EducationHOFSTRA UNIVERSITY+2 more: $61,600 · EducationBALLET THEATRE FOUNDATION INC: $4,209,000 · Arts & CultureBALLET THEATRE FOUNDATION INCPALM BEACH OPERA INC: $1,227,500 · Arts & CulturePALM BEACH OPERA INCTHE PHILHARMONIC SYMPHONY SOCIETY OF NY INC: $1,000,000 · Arts & CultureTHE PHILHARMONIC SYMPHONY SOCIETY…CHAMBER MUSIC SOCIETY OF PALM BEACH INC: $409,000 · Arts & Culture+8 more: $851,020 · Arts & Culture+8 moreMOUNT SINAI HEALTH SYSTEM INC: $2,575,000 · Human ServicesMOUNT SINAI…Northern Dutchess Hospital Foundation: $950,000 · OtherNorthern D…THE NEW YORK EYE & EAR INFIRMARY OF MOUNT SINAI: $724,448 · OtherTHE NEW YO…NEW YORK PRESBYTERIAN: $334,000 · OtherNEW YORK P…+25 more: $337,803 · Other+25 moreNDH Foundation: $800,500 · HealthBoca Raton Regional Hospital Inc: $300,000 · HealthNEW YORK-PRESBYTERIAN FUND INC: $266,000 · HealthThe Eye Cancer Foundation Inc: $120,000 · Health+4 more: $8,000 · HealthBoca Raton Regional Hospital Foundation Inc: $750,000 · Community ImprovementTown of Palm Beach United Way Inc: $155,000 · Philanthropy+1 more: $1,850 · Philanthropy
Education$11,083,860Arts & Culture$7,696,520Human Services$2,575,000Other$2,346,251Health$1,494,500Community Improvement$750,000Philanthropy$156,850

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetBARD COLLEGE: $7,222,260 over 9y, 1.4% of budgetBALLET THEATRE FOUNDATION INC: $4,209,000 over 7y, 2.5% of budgetMOUNT SINAI HEALTH SYSTEM INC: $2,575,000 over 5y, 0.8% of budgetICAHN SCHOOL OF MEDICINE AT MOUNT SINAI: $2,155,000 over 8y, 0.0% of budgetHOFSTRA UNIVERSITY: $1,645,000 over 9y, 0.1% of budgetPALM BEACH OPERA INC: $1,227,500 over 9y, 5.7% of budgetTHE PHILHARMONIC SYMPHONY SOCIETY OF NY INC: $1,000,000 over 3y, 0.3% of budgetNDH Foundation: $800,500 over 3y, 23% of budgetBoca Raton Regional Hospital Foundation Inc: $750,000 over 5y, 0.5% of budgetCHAMBER MUSIC SOCIETY OF PALM BEACH INC: $409,000 over 9y, 11% of budgetBoca Raton Regional Hospital Inc: $300,000 over 2y, 0.0% of budgetNEW YORK-PRESBYTERIAN FUND INC: $266,000 over 2y, 0.0% of budgetPALM BEACH DRAMAWORKS INC: $248,700 over 8y, 1.5% of budgetRAYMOND F KRAVIS CENTER FOR THE PERFORMING ARTS INC: $198,370 over 9y, 0.1% of budgetMIAMI CITY BALLET INC: $160,000 over 7y, 0.3% of budgetTown of Palm Beach United Way Inc: $155,000 over 4y, 1.2% of budgetNORTON MUSEUM OF ART INC: $123,450 over 7y, 0.1% of budgetThe Eye Cancer Foundation Inc: $120,000 over 6y, 9.6% of budgetTHE WASHINGTON BALLET: $100,000 over 1y, 1.0% of budgetLUZERNE MUSIC CENTER INC: $70,500 over 6y, 1.2% of budgetSAINT ANN'S SCHOOL: $52,000 over 6y, 0.0% of budgetTHE AMERICAN SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS: $39,436 over 2y, 0.0% of budgetHUNTS POINT ALLIANCE FOR CHILDREN: $30,000 over 3y, 0.8% of budgetTHE ANIMAL MEDICAL CENTER: $20,000 over 4y, 0.0% of budgetTHE PERLMAN MUSIC PROGRAM INC: $15,000 over 5y, 0.1% of budgetTAKE THE LEAD INC: $15,000 over 2y, 1.0% of budgetTHE DRESSAGE FOUNDATION: $14,500 over 5y, 1.9% of budgetGEORGETOWN DAY SCHOOL: $9,600 over 8y, 0.0% of budgetHEAD STRONG PROJECT INC: $4,500 over 2y, 0.1% of budgetUPSTATE FILMS LTD: $4,000 over 4y, 0.1% of budgetTRIBECA FILM INSTITUTE INC: $3,000 over 3y, 0.0% of budgetDana-Farber Cancer Institute Inc: $2,000 over 1y, 0.0% of budgetEXTRAORDINARY CHARITIES INC: $1,850 over 3y, 1.6% of budgetUNITED HOSPITAL FUND OF NEW YORK: $1,000 over 1y, 0.0% of budgetThe Palm Beach Police and Fire Foundation Inc: $1,000 over 1y, 0.1% of budgetTHE POODLE CLUB OF AMERICA: $500 over 1y, 1.1% of budgetPLANNED PARENTHOOD FEDERATION OF AMERICA INC: $500 over 1y, 0.0% of budget
Grantee by grantee: a decade per organization, before and after funding

A decade per grantee: revenue shaded, 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 ↗

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

Jewish Communal FundNY14.2× affinity6 shared granteesties to 8 of 8Hover any node to trace its alignments.Compare side by side →

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

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

How much its grantees rely on government

Each dot is one organization Martin & Toni Sosnoff Foundation funds: left to right is the share of its income from government, bottom to top the share from Martin & Toni Sosnoff Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 50%1%4%8%15%funder's share of their income ↑0%5%10%15%20%share of the org’s income from government →median 7%
  • Dana-Farber Cancer Institute Inc: 7% of income from government
no gov moneyreceives it· size = income
5get no government money at all
14report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–20%
typical government reliance, FY20–25
How this is measured
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 a grant caused the public funding. Coverage is precision-first, a floor rather than 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 to 24 months.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 57 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990-PF e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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