William & Susan Matheson Foundation Inc
William & Susan Matheson Foundation Inc is a private foundation, based in De Pere, WI. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $4.1M in total assets. In 2025, it awarded 9 grants totaling $229K. Net investment income was $480K.
Key facts about William & Susan Matheson Foundation Inc
In short: William & Susan Matheson Foundation Inc gave $229K across 9 grants in 2025 (avg $25K), mostly in Wisconsin. Source: 2025 IRS Form 990-PF.
- EIN
- 82-3801384
- Latest 990 filing
- Form 990-PF, 2025
- Annual giving (2025)
- $228,900
- Grants made (2025)
- 9
- Average grant
- $25,433
- Median grant
- $10,000
- Total assets
- $4,057,970
- Primary geography
- Wisconsin (100% of itemized 2025 grant dollars)
Data from IRS Form 990-PF, 2025; updated September 2026.
Financial Overview
From 2025 IRS Form 990-PF · View filing
Total Assets
$4.1M
+10.5% YoY
Annual Giving
$229K
+32.3% YoY
Grant Count
9
+0.0% YoY
Avg Grant Size
$25K
+32.3% YoY
Under IRS private-foundation payout rules, William & Susan Matheson Foundation Inc reported a distributable amount of $204K for 2025 — the minimum it must pay out in qualifying distributions.
How William & Susan Matheson Foundation Inc gives
- Giving grew 152% from 2022 to 2025. Method
- In 2025 it paid out 112% of its IRS minimum distribution (the 5% rule). Method
From the foundation's IRS Form 990-PF filings. Methodology.
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Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 9 itemized grants.
States
Cities
Giving Over Time
Total grant dollars and number of grants per year
From 2019 to 2025, annual grant giving ranged from $40K (2019) to $229K (2025). In 2025 it made 9 grants totaling $229K.
Grant Insights
How this funder distributes its grants
Top Recipients
Top 9 recipients in 2025
The largest 2025 recipient was Golden House ($110K). Together the top 9 received $229K.
Grant Size Distribution
37 grants across all recorded years
The most common grant size was under $50K: 33 grants of 37 (89%).
Giving History
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Golden House Green Bay, WI | Program Support | $110,000 |
| Rawhide Youth Services Green Bay, WI | Program Support | $45,000 |
| Salvation Army of Brown County Green Bay, WI | Program Support | $16,400 |
| Curative Connections Green Bay, WI | Program Support | $15,000 |
| Exceptional Equestrians De Pere, WI | Program Support | $10,000 |
| House of Hope Green Bay, WI | Program Support | $10,000 |
| Paul's Pantry Green Bay, WI | Program Support | $10,000 |
| St John's Homeless Shelter Green Bay, WI | Program Support | $10,000 |
| Laundry Love Brown County Green Bay, WI | Program Support | $2,500 |
Financial History
Multi-year comparison from IRS filings
| Metric | 2025 | 2024 | 2023 |
|---|---|---|---|
| Total Assets | $4,057,970 | $3,671,267 | $3,602,225 |
| Revenue | $990,571 | $220,939 | $91,087 |
| Expenses | $248,068 | $191,497 | $169,253 |
| Qualifying Distributions | $229,385 | $173,245 | $150,325 |
| Net Investment Income | $480,291 | $202,687 | $74,659 |
| Distributable Amount | $204,312 | $194,366 | $170,084 |
Data update history
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2019 (received by the IRS February 20, 2020)
- Updated Form 990-PF for fiscal year 2020 (received by the IRS February 15, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS May 12, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS February 21, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS May 9, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS May 12, 2025)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS January 27, 2026)
- IRS filings on file for fiscal years 2019–2025
Leadership & Key People
Officers and directors from IRS filings
William & Susan Matheson Foundation Inc is led by William J. Matheson, President, Treasurer & Director on every filing since 2019; none of the 5 officers listed in 2025 report compensation.
Officers on the 2025 filing
William J. Matheson
President, Treasurer & Director
On filings since 2019
1 hr/week
No compensation reported
Emily E. Marinoff
Director
On filings since 2019
0.5 hrs/week
No compensation reported
Joseph W. Matheson
Director
On filings since 2019
0.5 hrs/week
No compensation reported
Susan M. Matheson
Vice President, Secretary & Director
On filings since 2019
1 hr/week
No compensation reported
Amy Matheson
Director
On filings since 2021
0.5 hrs/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 William & Susan Matheson Foundation Inc
How much does William & Susan Matheson Foundation Inc give each year?
William & Susan Matheson Foundation Inc gave $229K across 9 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $173K across 9 grants.
What is William & Susan Matheson Foundation Inc's typical grant size?
William & Susan Matheson Foundation Inc's median grant in 2025 was $10,000, and its average grant was $25,433, across 9 grants on its 2025 IRS Form 990-PF.
Where does William & Susan Matheson Foundation Inc give grants?
William & Susan Matheson Foundation Inc gives mostly in Wisconsin: 100% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The most frequent recipient cities were Green Bay, WI (8 grants).
Does William & Susan Matheson Foundation Inc give general operating support?
Not in 2025: none of the 9 grants with a stated purpose on William & Susan Matheson Foundation Inc's 2025 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Program Support" (9 grants).
Who are William & Susan Matheson Foundation Inc's largest grantees?
William & Susan Matheson Foundation Inc's largest 2025 grantees include Golden House ($110,000), Rawhide Youth Services ($45,000) and Salvation Army of Brown County ($16,400), according to its 2025 IRS Form 990-PF. Together they received 75% of its itemized 2025 grant dollars.
How large is William & Susan Matheson Foundation Inc?
William & Susan Matheson Foundation Inc reported $4.1M in total assets on its 2025 IRS Form 990-PF. It paid out $229K in qualifying distributions that year, against a required minimum of $204K (roughly 5% of its investment assets).
What is William & Susan Matheson Foundation Inc's EIN?
William & Susan Matheson Foundation Inc's EIN (Employer Identification Number) is 82-3801384. 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.
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