The Thomas and Ann Dimarco Family Foundation
The Thomas and Ann Dimarco Family Foundation is a private foundation, based in Dublin, OH. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $8.2M in total assets. In 2025, it awarded 5 grants totaling $876K. Net investment income was $401K.
The Thomas and Ann Dimarco Family Foundation at a glance
In short: The Thomas and Ann Dimarco Family Foundation gave $876K across 5 grants in 2025 (avg $175K), mostly in Ohio. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $875,750
- -48.6% vs 2024
- Grants made (2025)
- 5
- +66.7% vs 2024
- Average grant
- $175,150
- -69.2% vs 2024
- Median grant
- $100,000
- Total assets
- $8,183,604
- -5.5% vs 2024
- Primary geography
- Ohio (100% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated November 2026.
Who The Thomas and Ann Dimarco Family Foundation funds
How this funder distributes its grants
Top Recipients
Top 4 recipients in 2025
The largest 2025 recipient was Nationwide Children's Hospital ($500K). Together the top 4 received $875K.
Organizations only. It also paid 1 grant to individuals ($750), which are not listed by name.
Grant Size Distribution
23 grants across all recorded years
The most common grant size was in the $100–250K range: 9 grants of 23 (39%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 5 itemized grants.
States
Cities
How The Thomas and Ann Dimarco Family Foundation gives
- Giving grew 94% from 2022 to 2025. Method
- In 2025 it paid out 215% 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 2020 to 2025, annual grant giving ranged from $451K (2022) to $1.7M (2024). In 2025 it made 5 grants totaling $876K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Nationwide Children's Hospital Columbus, OH | Support the mission of providing pediatric medical care for the most complex of diseases. | $500,000 |
| The Ohio Health Foundation Columbus, OH | Support the mission of investing in innovation and technology, infastructure and facilities, research and education, and community outreach. | $200,000 |
| The Maria Tiberi Foundation Dublin, OH | Support mission of brining distraction-free driving to the forefront and provide better driving training to new drivers. | $100,000 |
| A Kid Again Columbus, OH | Support the mission of helping children with life threatening illnesses feel like "a kid again" | $75,000 |
| 1 grant to individuals Recipients not named | — | $750 |
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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 | $8,183,604 | $589,591 | $1,064,317 | $875,750 | 5 | $875,950 | $401,224 | $408,105 |
| 2024 | $8,658,330 | $834,463 | $1,843,434 | $1,704,559 | 3 | $1,704,759 | $695,788 | $405,647 |
| 2023 | $9,131,246 | $535,344 | $1,793,106 | $1,700,000 | 3 | $1,700,200 | $442,438 | $460,777 |
| 2022 | $10,389,008 | $1,255,297 | $549,513 | $451,000 | 7 | $451,200 | $156,984 | $551,449 |
| 2021 | $9,683,224 | $1,378,831 | $606,982 | $515,000 | 5 | — | $286,723 | $584,559 |
| 2020 | $8,911,375 | $2,127,195 | $597,528 | $525,000 | 11 | — | $54,867 | $468,485 |
Under IRS private-foundation payout rules, The Thomas and Ann Dimarco Family Foundation reported a distributable amount of $408K for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
The Thomas and Ann Dimarco Family Foundation is led by Thomas J. Dimarco, President & Trustee on every filing since 2020; none of the 2 officers listed in 2025 report compensation.
Officers on the 2025 filing
Thomas J. Dimarco
President & Trustee
On filings since 2020
No compensation reported
Ann M. Dimarco
Secretary & Trustee
On filings since 2020
No compensation reported
Data from IRS Form 990 filings, 2020–2025. "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 The Thomas and Ann Dimarco Family Foundation
How much does The Thomas and Ann Dimarco Family Foundation give each year?
The Thomas and Ann Dimarco Family Foundation gave $876K across 5 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $1.7M across 3 grants.
What is The Thomas and Ann Dimarco Family Foundation's typical grant size?
The Thomas and Ann Dimarco Family Foundation's median grant in 2025 was $100,000, and its average grant was $175,150, across 5 grants on its 2025 IRS Form 990-PF.
Where does The Thomas and Ann Dimarco Family Foundation give grants?
The Thomas and Ann Dimarco Family Foundation gives mostly in Ohio: 100% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The most frequent recipient cities were Columbus, OH (3 grants).
Does The Thomas and Ann Dimarco Family Foundation give general operating support?
Not in 2025: none of the 5 grants with a stated purpose on The Thomas and Ann Dimarco Family Foundation's 2025 IRS Form 990-PF were described as general or operating support.
Who are The Thomas and Ann Dimarco Family Foundation's largest grantees?
The Thomas and Ann Dimarco Family Foundation's largest 2025 grantees include Nationwide Children's Hospital ($500,000), The Ohio Health Foundation ($200,000) and The Maria Tiberi Foundation ($100,000), according to its 2025 IRS Form 990-PF. It also paid 1 grant to individuals ($750), which are not listed by name. Together they received 91% of its itemized 2025 grant dollars.
How large is The Thomas and Ann Dimarco Family Foundation?
The Thomas and Ann Dimarco Family Foundation reported $8.2M in total assets on its 2025 IRS Form 990-PF. It paid out $876K in qualifying distributions that year, against a required minimum of $408K (roughly 5% of its investment assets).
What is The Thomas and Ann Dimarco Family Foundation's EIN?
The Thomas and Ann Dimarco Family Foundation's EIN (Employer Identification Number) is 81-3014662. IRS Form 990 filing data is available on this page for 2020–2025.
Data last updated November 2026. Sourced from IRS Form 990-PF filings.
Data update history
(2)
When this profile's IRS filing data changed on Grantable
- Added Form 990-PF for fiscal year 2025 (received by the IRS September 10, 2026)
- IRS filings on file for fiscal years 2020–2024
Live grants for the work The Thomas and Ann Dimarco Family Foundation funds
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