Thomas M & Nancy H O'Neill Foundation
Thomas M & Nancy H O'Neill Foundation is a private foundation, based in Duxbury, MA. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $1.3M in total assets. In 2025, it awarded 4 grants totaling $103K. Net investment income was $27K.
Thomas M & Nancy H O'Neill Foundation at a glance
In short: Thomas M & Nancy H O'Neill Foundation gave $103K across 4 grants in 2025 (avg $26K), mostly in Massachusetts. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $103,000
- +23.0% vs 2024
- Grants made (2025)
- 4
- -33.3% vs 2024
- Average grant
- $25,750
- +84.5% vs 2024
- Median grant
- $30,000
- Total assets
- $1,348,250
- +1.8% vs 2024
- Primary geography
- Massachusetts (61% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated September 2026.
Who Thomas M & Nancy H O'Neill Foundation funds
How this funder distributes its grants
Top Recipients
Top 4 recipients in 2025
The largest 2025 recipient was Galisano Children's Museum of Naples ($40K). Together the top 4 received $103K.
Grant Size Distribution
33 grants across all recorded years
The most common grant size was under $50K: 33 grants of 33 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 4 itemized grants.
Cities
How Thomas M & Nancy H O'Neill Foundation gives
- Giving held roughly steady from 2022 to 2025 (+15%). Method
- In 2025 it paid out 174% of its IRS minimum distribution (the 5% rule). Method
From the foundation's IRS Form 990-PF filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2019 to 2025, annual grant giving ranged from $45K (2021) to $103K (2025). In 2025 it made 4 grants totaling $103K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Galisano Children's Museum of Naples Naples, FL | General Fundraising | $40,000 |
| Medicines for Humanity Rockland, MA | General Fundraising | $35,000 |
| Harvard College Cambridge, MA | General Fundraising | $25,000 |
| The Joey Fund Cambridge, MA | General Fundraising | $3,000 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2025 | $1,348,250 | $134,231 | $110,577 | $103,000 | 4 | $103,000 | $27,146 | $59,271 |
| 2024 | $1,324,596 | $116,446 | $89,800 | $83,750 | 6 | $83,750 | $35,396 | $53,709 |
| 2023 | $1,297,950 | $65,236 | $92,950 | $87,300 | 11 | $87,300 | $12,765 | $47,407 |
| 2022 | $1,325,664 | $90,853 | $94,750 | $89,500 | 9 | $89,500 | $10,603 | $49,450 |
| 2021 | $1,329,561 | $110,820 | $50,090 | $45,000 | 3 | $45,000 | $30,730 | $51,605 |
| 2020 | $1,268,831 | $97,969 | $58,600 | $53,500 | 6 | — | $17,869 | $51,864 |
| 2019 | $1,229,462 | $118,595 | $68,536 | $63,000 | 9 | — | $14,877 | $50,422 |
Under IRS private-foundation payout rules, Thomas M & Nancy H O'Neill Foundation reported a distributable amount of $59K for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Thomas M & Nancy H O'Neill Foundation's 2025 filing lists 2 officers; none of the 2 officers listed in 2025 report compensation.
Officers on the 2025 filing
Nancy H O'Neill
Trustee
On filings since 2019
1 hr/week
No compensation reported
Thomas M O'Neill
Trustee
On filings since 2019
1 hr/week
No compensation reported
Data from IRS Form 990 filings, 2019–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Frequently asked questions about Thomas M & Nancy H O'Neill Foundation
How much does Thomas M & Nancy H O'Neill Foundation give each year?
Thomas M & Nancy H O'Neill Foundation gave $103K across 4 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $84K across 6 grants.
What is Thomas M & Nancy H O'Neill Foundation's typical grant size?
Thomas M & Nancy H O'Neill Foundation's median grant in 2025 was $30,000, and its average grant was $25,750, across 4 grants on its 2025 IRS Form 990-PF.
Where does Thomas M & Nancy H O'Neill Foundation give grants?
Thomas M & Nancy H O'Neill Foundation gives mostly in Massachusetts: 61% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest state was Florida (39%). The most frequent recipient cities were Cambridge, MA (2 grants).
Does Thomas M & Nancy H O'Neill Foundation give general operating support?
Yes: 100% of Thomas M & Nancy H O'Neill Foundation's 2025 grants with a stated purpose (4 of 4) were for general or operating support, per its 2025 IRS Form 990-PF.
How large is Thomas M & Nancy H O'Neill Foundation?
Thomas M & Nancy H O'Neill Foundation reported $1.3M in total assets on its 2025 IRS Form 990-PF. It paid out $103K in qualifying distributions that year, against a required minimum of $59K (roughly 5% of its investment assets).
What is Thomas M & Nancy H O'Neill Foundation's EIN?
Thomas M & Nancy H O'Neill Foundation's EIN (Employer Identification Number) is 04-6907024. IRS Form 990 filing data is available on this page for 2019–2025.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
Data update history
(7)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2024 (received by the IRS May 29, 2025)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS June 8, 2026)
- Added Form 990-PF for fiscal year 2019 (received by the IRS May 12, 2020)
- Updated Form 990-PF for fiscal year 2020 (received by the IRS June 4, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS May 16, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS July 27, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS May 15, 2024)
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