Komatsu Mining Corp Foundation Inc
Komatsu Mining Corp Foundation Inc is a private foundation focused on Arts and culture, based in Milwaukee, WI. IRS filing data is available from 2021 through 2025. As of 2025, the organization holds $9.6M in total assets. In 2025, it awarded 1 grant totaling $733K. Net investment income was $608K.
Komatsu Mining Corp Foundation Inc at a glance
In short: Komatsu Mining Corp Foundation Inc gave $733K across 1 grant in 2025 (avg $733K), mostly in Wisconsin. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $733,350
- +11.5% vs 2024
- Grants made (2025)
- 1
- +0.0% vs 2024
- Average grant
- $733,350
- +11.5% vs 2024
- Median grant
- $733,350
- Total assets
- $9,586,954
- -3.1% vs 2024
- Primary geography
- Wisconsin (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 Komatsu Mining Corp Foundation Inc funds
How this funder distributes its grants
Top Recipients
Top recipient in 2025
The largest 2025 recipient was See Attachment ($733K).
Grant Size Distribution
5 grants across all recorded years
The most common grant size was in the $500K–1M range: 5 grants of 5 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of the 2025 grant dollars on its one itemized grant.
States
Cities
How Komatsu Mining Corp Foundation Inc gives
- Giving held roughly steady from 2022 to 2025 (+10%). Method
- In 2025 it paid out 122% 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 2021 to 2025, annual grant giving ranged from $622K (2021) to $733K (2025). In 2025 it made 1 grant totaling $733K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| See Attachment Milwaukee, WI | Various | $733,350 |
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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 | $9,586,954 | $691,110 | $816,057 | $733,350 | 1 | $733,350 | $608,403 | $602,888 |
| 2024 | $9,897,743 | $894,795 | $716,054 | $657,750 | 1 | $657,750 | $836,491 | $562,416 |
| 2023 | $10,478,894 | $444,237 | $702,323 | $648,000 | 1 | $648,000 | $389,914 | $523,645 |
| 2022 | $9,070,551 | $507,668 | $713,284 | $668,200 | 1 | $668,200 | $462,584 | $538,966 |
| 2021 | $9,276,166 | $899,354 | $705,849 | $621,500 | 1 | — | $815,005 | $564,543 |
Under IRS private-foundation payout rules, Komatsu Mining Corp Foundation Inc reported a distributable amount of $603K for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Komatsu Mining Corp Foundation Inc is led by Cathy Stagmer, President on every filing since 2024; none of the 8 officers listed in 2025 report compensation.
Officers on the 2025 filing
Cathy Stagmer
President
On filings since 2024
No compensation reported
Caley Clinton
Director
On filings since 2024
No compensation reported
Dan Flournoy
Director
On filings since 2024
No compensation reported
Jessica Jamison
Director
On filings since 2024
No compensation reported
Edie Hess
Director
New on the 2025 filing
No compensation reported
Ed Bathelt
Secretary
On filings since 2021
No compensation reported
Iris Wilson Farley
Vice President
On filings since 2024
No compensation reported
Steve Kinnear
Treasurer
Director → Treasurer, 2025
On filings since 2024
No compensation reported
Former officers (3)
- Former: Patti Effertz (2021–2024) — Treasurer
- Former: Gary A Kasbeer (2021–2023) — President
- Former: Gregory W Elliott (2021–2023) — Vice President
Data from IRS Form 990 filings, 2021–2025. "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 Komatsu Mining Corp Foundation Inc
How much does Komatsu Mining Corp Foundation Inc give each year?
Komatsu Mining Corp Foundation Inc gave $733K across 1 grant in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $658K across 1 grant.
How large is Komatsu Mining Corp Foundation Inc?
Komatsu Mining Corp Foundation Inc reported $9.6M in total assets on its 2025 IRS Form 990-PF. It paid out $733K in qualifying distributions that year, against a required minimum of $603K (roughly 5% of its investment assets).
What is Komatsu Mining Corp Foundation Inc?
Komatsu Mining Corp Foundation Inc is a private foundation focused on Arts and culture, based in Milwaukee, WI. It holds $9.6M in total assets as of 2025.
Where does Komatsu Mining Corp Foundation Inc operate?
Komatsu Mining Corp Foundation Inc has awarded grants in Wisconsin.
What is Komatsu Mining Corp Foundation Inc's EIN?
Komatsu Mining Corp Foundation Inc's EIN (Employer Identification Number) is 39-1659070. IRS Form 990 filing data is available on this page for 2021–2025.
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 2021 (received by the IRS February 16, 2023)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS February 16, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS February 22, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS March 5, 2025)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS February 12, 2026)
- IRS filings on file for fiscal years 2021–2025
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