· Private foundation
Leona and Harry B Helmsley Foundation
Its FY2026 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
What it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.
Where the money goes
Grants by size, and the largest recipients.
| Recipient | Amount |
|---|---|
| NEW YORK PRESBYTERIAN FUND INC | $75,000 |
| CLALIT HEALTH SERVICES | $60,000 |
Does the money reach high-need areas?
Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.
Dollar for dollar, its grants (FY17–25) land where the poverty rate runs at 15%, against an area that typically sits at 6%. 89% of its dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.
How this is measured
How this is measured
Who it funds again
Organizations funded in more than one year, against those funded once.
Grantees it renews have grown median revenue +44% since the first grant, against 0% for those funded once.
8 repeat relationships: 1 still active in FY2025, 7 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, 56% of grant dollars renewed an existing relationship; $60k went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
Backed again, and grew
- PAPROSTATE ACTION INC2× · 2020–2024 · $183k · revenue +0% · 45% of their budget
- HDHUNTINGTON'S DISEASE FOUNDATION8× · 2017–2024 · $160k · revenue +280%
- TBThe Broad Institute Inc2× · 2020–2021 · $135k · revenue +44%
Funded once
- NLNYU LANGONE HOSPITALSone grant, 2024 · $150k · revenue 0%
- AFAMERICAN FRIENDS OF HERZOG HOSPITAL INCone grant, 2019 · $60k · revenue -74%
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.
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.
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,…
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.
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 board adopted mission statement is: the corporation is operated exclusively for the benefit of nyu langone hospitals and its affiliated organizations. in this capacity, the corporation, may, in order to improve the health and welfare…
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…
Medical research organization van andel research institute is an independent biomedical research organization committed to improving the health and enhancing the lives of current and future generations.
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…
The institute for advanced study (the institute) is one of the world's leading centers for theoretical research and intellectual inquiry. see schedule o.
The mission of the institute is to translate basic genetic and molecular mechanisms of schizophrenia and related developmental brain disorders into clinical advances that change the lives of affected individuals. it is catalyzing a new…
The feinstein institute for medical research ("the institute") is the research branch of northwell health ("northwell"). through its affiliation with northwell, the institute's mission is to bridge the gap between biomedical research and…
Fred hutch cancer center ("fred hutch") unites innovative research and compassionate care to prevent and eliminate cancer and infectious disease. continued on schedule o
The mission of the new york cardiac center is to be a part of the ongoing effort to diagnose and prevent heart and other diseases. we help to develop treatment for those who need it and assist in training new scientists, educators, and…
How this is measured
10 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. 10 of the 11 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.
Where the money sits, by cause and then by grantee
Each grantee by its size and the funder’s share of it; top left is load-bearing
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 PROSTATE ACTION INC ↗
- Who funds HUNTINGTON'S DISEASE FOUNDATION ↗
- Who funds NYU LANGONE HOSPITALS ↗
- Who funds The Broad Institute Inc ↗
- Who funds NEW YORK CROHNS AND COLITIS ORGANIZATION INC ↗
- Who funds ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI ↗
- Who funds NEW YORK-PRESBYTERIAN FUND INC ↗
- Who funds AMERICA-ISRAEL FRIENDSHIP LEAGUE INC ↗
- Who funds AMERICAN FRIENDS OF HERZOG HOSPITAL INC ↗
- Who funds CEREBRAL PALSY FOUNDATION 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.
Open a dossier: National Philanthropic Trust · Fidelity Investments Charitable Gift Fund · Amazonsmile Foundation
How this is measured
How much its grantees rely on government
Each dot is one organization Leona and Harry B Helmsley Foundation funds: left to right is the share of its income from government, bottom to top the share from Leona and Harry B Helmsley Foundation. Bigger dots raise more.
- The Broad Institute Inc: 19% of income from government
How this is measured
Warm introductions · Powered by PlinthPlus
How do I get to Leona and Harry B Helmsley Foundation?
Find your warmest path to Leona and Harry B Helmsley 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.
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