The Tresemer Foundation Inc
The Tresemer Foundation Inc is a private foundation, based in Guilford, CT. IRS filing data is available from 2022 through 2025. As of 2025, the organization holds $2.0M in total assets. In 2025, it awarded 3 grants totaling $119K. Net investment income was $57K.
The Tresemer Foundation Inc at a glance
In short: The Tresemer Foundation Inc gave $119K across 3 grants in 2025 (avg $40K), mostly in California. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $119,000
- +13.3% vs 2024
- Grants made (2025)
- 3
- +0.0% vs 2024
- Average grant
- $39,667
- +13.3% vs 2024
- Median grant
- $42,000
- Total assets
- $2,046,306
- -3.6% vs 2024
- Primary geography
- California (52% 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 The Tresemer Foundation Inc funds
How this funder distributes its grants
Top Recipients
Top 3 recipients in 2025
The largest 2025 recipient was Sierra Club Foundation ($62K). Together the top 3 received $119K.
Grant Size Distribution
12 grants across all recorded years
The most common grant size was under $50K: 8 grants of 12 (67%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 3 itemized grants.
States
Cities
How The Tresemer Foundation Inc gives
- Giving held roughly steady from 2022 to 2025 (−8%). Method
- In 2025 it paid out 101% 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 2022 to 2025, annual grant giving ranged from $105K (2024) to $135K (2023). In 2025 it made 3 grants totaling $119K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Sierra Club Foundation Oakland, CA | General Operating Support for Sierra Club Foundation | $62,000 |
| Give an Hour Clarksburg, MD | General Operating Support for Give an Hour | $42,000 |
| Oberlin College - Education Outreach Programs Oberlin, OH | General Operating Support for Oberlin Ninde Scholars Program. | $15,000 |
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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 | $2,046,306 | $79,028 | $156,393 | $119,000 | 3 | $134,717 | $57,352 | $133,740 |
| 2024 | $2,123,333 | $328,729 | $154,945 | $105,000 | 3 | $117,513 | $291,297 | $120,996 |
| 2023 | $1,948,829 | $-28,209 | $159,936 | $135,000 | 3 | $136,762 | $30,491 | $118,767 |
| 2022 | $2,136,986 | $156,945 | $174,022 | $130,000 | 3 | $138,867 | $123,109 | $137,587 |
Under IRS private-foundation payout rules, The Tresemer Foundation Inc reported a distributable amount of $134K for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
The Tresemer Foundation Inc is led by Sarah Jefferson, President on every filing since 2022; all 2 officers listed in 2025 are compensated.
Officers on the 2025 filing
Sarah Jefferson
President
On filings since 2022
2.5 hrs/week
$4K (2022) → $4K (2025)
Lelani Tresemer
Secretary & Treasurer
On filings since 2022
1.5 hrs/week
$5K (2022) → $2K (2025)
Data from IRS Form 990 filings, 2022–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2025 IRS filing
The highest reported compensation on the 2025 filing was $4K, to Sarah Jefferson (President). 2 officers or directors reported compensation on that filing.
Frequently asked questions about The Tresemer Foundation Inc
How much does The Tresemer Foundation Inc give each year?
The Tresemer Foundation Inc gave $119K across 3 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $105K across 3 grants.
What is The Tresemer Foundation Inc's typical grant size?
The Tresemer Foundation Inc's median grant in 2025 was $42,000, and its average grant was $39,667, across 3 grants on its 2025 IRS Form 990-PF.
Where does The Tresemer Foundation Inc give grants?
The Tresemer Foundation Inc gives mostly in California: 52% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest states were Maryland (35%) and Ohio (13%).
Does The Tresemer Foundation Inc give general operating support?
Yes: 100% of The Tresemer Foundation Inc's 2025 grants with a stated purpose (3 of 3) were for general or operating support, per its 2025 IRS Form 990-PF.
How large is The Tresemer Foundation Inc?
The Tresemer Foundation Inc reported $2.0M in total assets on its 2025 IRS Form 990-PF. It paid out $135K in qualifying distributions that year, against a required minimum of $134K (roughly 5% of its investment assets).
What is The Tresemer Foundation Inc's EIN?
The Tresemer Foundation Inc's EIN (Employer Identification Number) is 84-1505071. IRS Form 990 filing data is available on this page for 2022–2025.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
Data update history
(5)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2022 (received by the IRS January 16, 2024)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS January 16, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS June 16, 2025)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS March 12, 2026)
- IRS filings on file for fiscal years 2022–2025
Live grants for the work The Tresemer Foundation Inc funds
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