Wisconsin Arborist Association
To improve the understanding of trees and the practice of arboriculture.
Wisconsin Arborist Association at a glance
In short: Wisconsin Arborist Association gave $5K across 1 grant in 2025 (avg $5K), mostly in Illinois. Source: 2025 IRS Form 990.
- Annual giving (2025)
- $5,000
- -50.0% vs 2024
- Grants made (2025)
- 1
- -50.0% vs 2024
- Average grant
- $5,000
- +0.0% vs 2024
- Median grant
- $5,000
- Total assets
- $1,310,386
- +13.1% vs 2024
- Primary geography
- Illinois (100% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990, 2025 View filing
Data from IRS Form 990, 2025; updated September 2026.
Who Wisconsin Arborist Association funds
How this funder distributes its grants
Top Recipients
Top recipient in 2025
The largest 2025 recipient was Tree Research and Educaton Endow FD ($5K).
Grant Size Distribution
4 grants across all recorded years
The most common grant size was under $50K: 4 grants of 4 (100%).
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2025, annual grant giving ranged from $5K (2022) to $10K (2024). In 2025 it made 1 grant totaling $5K.
Hatched bars: grants paid as reported on the IRS filing, which lists no individual grants for that year.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Tree Research and Educaton Endow FD Naperville, IL | Matching Grant | $5,000 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Net Investment Income |
|---|---|---|---|---|---|---|
| 2025 | $1,310,386 | $546,562 | $452,347 | $5,000 | 1 | $39,996 |
| 2024 | $1,158,772 | $423,213 | $409,609 | $10,000 | 2 | $-13,886 |
| 2023 | $1,041,242 | $478,924 | $391,982 | $10,000 | 1 | $16,369 |
| 2022 | $903,628 | $258,714 | $301,104 | $5,000 | Total only | $-96,719 |
| 2021 | $907,988 | $279,185 | $164,287 | $8,129 | Total only | $73,062 |
| 2020 | $796,862 | $401,922 | $275,765 | $5,710 | Total only | $79,526 |
"Total only": grants paid as reported on the IRS filing, which lists no individual grants for that year.
About Wisconsin Arborist Association
Based on IRS filings
Wisconsin Arborist Association is a public charity, based in Eagle, WI. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $1.3M in total assets. In 2025, it awarded 1 grant totaling $5K. Net investment income was $40K.
Leadership & Key People
Officers and directors from IRS filings
Wisconsin Arborist Association is led by Ian Brown II, President since 2025 (on filings since 2023); none of the 10 officers listed in 2025 report compensation.
Officers on the 2025 filing
Ian Brown II
President
President Elect → President, 2025
On filings since 2023
4 hrs/week
No compensation reported
Aaron Schauer
Isa Representative
On filings since 2020
2 hrs/week
No compensation reported
Adam Alves
Publicity
On filings since 2020
4 hrs/week
No compensation reported
Edgar Ezerietis
Secretary
On filings since 2020
4 hrs/week
No compensation reported
Lee Fredericks
Membership Representative
On filings since 2020
2 hrs/week
No compensation reported
Peter Sorensen
Legislative Representative & Vice President
Legislative Representative → Legislative Representative & Vice President, 2025
On filings since 2020
2 hrs/week
No compensation reported
Todd Haefke II
Past President
Vice President → President Elect, 2022
President Elect → Past President, 2023
On filings since 2020
4 hrs/week
No compensation reported
Frank Seiheimer
Certification
On filings since 2023
2 hrs/week
No compensation reported
Kyle Babicky II
President Elect
Vice President → President Elect, 2025
On filings since 2023
2 hrs/week
No compensation reported
Dean Ziemienski
Treasurer
New on the 2025 filing
4 hrs/week
No compensation reported
Former officers (6)
- Former: Joe Addis (2020–2024) — Treasurer
- Former: Fred Hoppe (2022–2024) — President
- Former: Nate Schuettpelz (2020–2022) — Past President
- Former: Tim Harris (2020–2022) — President
- Former: Anna Healy (2020–2021) — Past President
- Former: John Cole (2020–2021) — Membership Representative
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 Wisconsin Arborist Association
How much does Wisconsin Arborist Association give each year?
Wisconsin Arborist Association gave $5K across 1 grant in 2025, according to its 2025 IRS Form 990. In 2024 it gave $10K across 2 grants.
How large is Wisconsin Arborist Association?
Wisconsin Arborist Association reported $1.3M in total assets on its 2025 IRS Form 990. Its revenue that year was $547K.
Where does Wisconsin Arborist Association operate?
Wisconsin Arborist Association has awarded grants in Illinois, Wisconsin.
What is Wisconsin Arborist Association's EIN?
Wisconsin Arborist Association's EIN (Employer Identification Number) is 39-1458979. IRS Form 990 filing data is available on this page for 2020–2025.
Data last updated September 2026. Sourced from IRS Form 990 filings.
Data update history
(6)
When this profile's IRS filing data changed on Grantable
- Updated Form 990 for fiscal year 2020 (received by the IRS June 4, 2021)
- Updated Form 990 for fiscal year 2021 (received by the IRS July 18, 2022)
- Updated Form 990 for fiscal year 2022 (received by the IRS June 26, 2023)
- Updated Form 990 for fiscal year 2023 (received by the IRS October 10, 2024)
- Updated Form 990 for fiscal year 2024 (received by the IRS April 5, 2025)
- Added Form 990 for fiscal year 2025 (received by the IRS June 5, 2026)
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