Thomas a & Diann G Mann Foundation
Thomas a & Diann G Mann Foundation is a private foundation, based in Palm Beach Gardens, FL. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $13K in total assets. In 2025, it awarded 1 grant totaling $1K.
Thomas a & Diann G Mann Foundation at a glance
In short: Thomas a & Diann G Mann Foundation gave $1K across 1 grant in 2025 (avg $1K), mostly in Florida. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $1,000
- -97.1% vs 2024
- Grants made (2025)
- 1
- -50.0% vs 2024
- Average grant
- $1,000
- -94.3% vs 2024
- Median grant
- $1,000
- Total assets
- $12,600
- -4.9% vs 2024
- Primary geography
- Florida (100% 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 a & Diann G Mann Foundation funds
How this funder distributes its grants
Top Recipients
Top recipient in 2025
The largest 2025 recipient was Frenchman's Creek Charitites ($1K).
Grant Size Distribution
47 grants across all recorded years
The most common grant size was under $50K: 44 grants of 47 (94%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of the 2025 grant dollars on its one itemized grant.
Cities
How Thomas a & Diann G Mann Foundation gives
- Giving fell 99% from 2022 to 2025. Method
- In 2025 it paid out 161% 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 $1K (2025) to $219K (2021). In 2025 it made 1 grant totaling $1K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Frenchman's Creek Charitites Palm Beach Gardens, FL | General Use | $1,000 |
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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 | $12,600 | $1,032 | $1,683 | $1,000 | 1 | $1,000 | — | $620 |
| 2024 | $13,251 | $34,210 | $37,124 | $35,000 | 2 | $35,000 | — | $663 |
| 2023 | $16,165 | $70,204 | $107,694 | $103,600 | 8 | $103,600 | $68,604 | $2,007 |
| 2022 | $53,655 | $158,826 | $203,172 | $191,500 | 14 | $191,500 | $155,580 | $11,784 |
| 2021 | $98,001 | $215,328 | $228,965 | $219,218 | 22 | $219,218 | $185,568 | $22,339 |
| 2020 | $111,638 | $70,448 | $94,774 | $89,500 | 18 | — | $62,400 | $23,080 |
Under IRS private-foundation payout rules, Thomas a & Diann G Mann Foundation reported a distributable amount of $620 for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Thomas a & Diann G Mann Foundation is led by Thomas A. Mann, President on every filing since 2020; none of the 5 officers listed in 2025 report compensation.
Officers on the 2025 filing
Thomas A. Mann
President
On filings since 2020
1 hr/week
No compensation reported
David Mann
Trustee
On filings since 2020
No compensation reported
Julie Mann Simons
Trustee
On filings since 2020
No compensation reported
William Mann
Trustee
On filings since 2020
No compensation reported
Diann G. Mann
Vice President
On filings since 2020
1 hr/week
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 Thomas a & Diann G Mann Foundation
How much does Thomas a & Diann G Mann Foundation give each year?
Thomas a & Diann G Mann Foundation gave $1K across 1 grant in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $35K across 2 grants.
How large is Thomas a & Diann G Mann Foundation?
Thomas a & Diann G Mann Foundation reported $13K in total assets on its 2025 IRS Form 990-PF. It paid out $1K in qualifying distributions that year, against a required minimum of $620 (roughly 5% of its investment assets).
Where does Thomas a & Diann G Mann Foundation operate?
Thomas a & Diann G Mann Foundation has awarded grants in Colorado, Florida, Massachusetts, New York, Ohio, Pennsylvania, Virginia.
What is Thomas a & Diann G Mann Foundation's EIN?
Thomas a & Diann G Mann Foundation's EIN (Employer Identification Number) is 34-1847977. IRS Form 990 filing data is available on this page for 2020–2025.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
Data update history
(6)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2020 (received by the IRS January 18, 2022)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS May 13, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS August 22, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS May 16, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS May 13, 2025)
- Added Form 990-PF for fiscal year 2025 (received by the IRS May 14, 2026)
Live grants for the work Thomas a & Diann G Mann Foundation funds
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