· Private foundation
Thomas M & Nancy H O'Neill 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 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.
By grant size · FY2025
- Under $10k1 grant · $3k
- $10k–50k3 grants · $100k
| Recipient | Amount |
|---|---|
| Galisano Children's Museum of Naples | $40,000 |
| Medicines for Humanity | $35,000 |
| Harvard College | $25,000 |
| The Joey Fund | $3,000 |
Does the money reach high-need areas?
Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.
Its human-services grants (FY17–22, $8k) land where the poverty rate runs at 15%, against an area that typically sits at 7%. 100% of those 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 +87% since the first grant, against +84% for those funded once.
14 repeat relationships: 4 still active in FY2025, 10 since wound down.
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; $0 went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
Backed again, and grew
- MFMEDICINES FOR HUMANITY INC9× · 2017–2025 · $280k · revenue +15%
- GCGOLISANO CHILDREN'S MUSEUM OF NAPLES INC4× · 2021–2025 · $63k · revenue +87%
Dana-Farber Cancer Institute Inc3× · 2017–2019 · $15k · revenue +162%
Funded once
- CHChildren's Hospital Corporationgraduatedone grant, 2022 · $10k · revenue +44%
- CHChildren's Hospital Circle of Careone grant, 2017 · $10k
- NCNaples Children's Museumone grant, 2017 · $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.
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.
The mission of mit is to advance knowledge and educate students in science, technology, and other areas of scholarship that will best serve the nation and the world in the 21st century.
Mcphs university prepares students for careers in health care through teaching, scholarship, research, professional service and community engagement.
The Foundation's mission is to provide pathology services primarily to patients at Boston Children's Hospital and at satellite locations. The Foundation carries on and promotes basic and applied medical research and education in the field…
The Foundation provides neurosurgical services primarily to patients at Boston Children's Hospital and at satellite locations. The Foundation carries on and promotes basic and applied medical research and education in the field of…
Northeast college of health sciences (the college) is committed to academic excellence, leadership, and professional best practices in the health sciences.
The Organization operates exclusively for the benefit of the charitable purposes of Boston Children's Hospital (the Hospital) and the affiliated Foundations. It works jointly with the Hospital and the Foundations in developing and…
To operate exclusively for the benefit of The Children's Hospital Corporation and its affiliated organizations in the conduct of their charitable, educational and scientific functions.
Dartmouth College educates the most promising students and prepares them for a lifetime of learning and of responsible leadership, through a faculty dedicated to teaching and the creation of knowledge.
The Foundation's mission is to provide ophthalmology services primarily to patients at Boston Children's Hospital and at satellite locations. The Foundation carries on and promotes basic and applied medical research and education in the…
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
Bates is a college of the liberal arts and sciences, and is a coeducational, nonsectarian, residential college with special commitments to academic rigor, and to assuring in all of its efforts the dignity of each individual, and access to…
How this is measured
12 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. 12 of the 24 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 MEDICINES FOR HUMANITY INC ↗
- Who funds GOLISANO CHILDREN'S MUSEUM OF NAPLES INC ↗
- Who funds President and Fellows of Harvard College ↗
- Who funds BRIDGE BOSTON FOUNDATION INC ↗
- Who funds Dana-Farber Cancer Institute Inc ↗
- Who funds NANTUCKET GOLF CLUB FOUNDATION INC ↗
- Who funds Children's Hospital Corporation ↗
- Who funds The Peter G Colton Memorial Fund ↗
- Who funds PINE STREET INN INC ↗
- Who funds ROSIE'S PLACE INC ↗
- Who funds NAPLES CHILDREN FOUNDATION INC ↗
- Who funds My Brothers Keeper 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: Vanguard Charitable Endowment Program · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund
How this is measured
How much its grantees rely on government
Each dot is one organization Thomas M & Nancy H O'Neill Foundation funds: left to right is the share of its income from government, bottom to top the share from Thomas M & Nancy H O'Neill Foundation. Bigger dots raise more.
- Children's Hospital Corporation: 12% of income from government
- Pine Street Inn Inc: 11% of income from government
- President and Fellows of Harvard College: 10% of income from government
- Dana-Farber Cancer Institute Inc: 8% of income from government
How this is measured
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