ANTONIA FOUNDATION INCco F MICHAEL ARNOW
ANTONIA FOUNDATION INCco F MICHAEL ARNOW is a private foundation based in Milwaukee, Wisconsin. Its stated sole activity is disbursing funds to benefit conservation efforts, nature education, wildlife and wildlife habitat protection, and food security.
ANTONIA FOUNDATION INCco F MICHAEL ARNOW at a glance
In short: ANTONIA FOUNDATION INCco F MICHAEL ARNOW gave $737K across 17 grants in 2026 (avg $43K), mostly in Wisconsin. 29% of 2026 grantees were new. Source: 2026 IRS Form 990-PF.
- Annual giving (2026)
- $736,933
- +9.1% vs 2025
- Grants made (2026)
- 17
- +30.8% vs 2025
- Average grant
- $43,349
- -16.6% vs 2025
- Median grant
- $25,000
- Total assets
- $10,353,608
- +3.8% vs 2025
- New grantees (estimate)
- 29% first-time grantees (5 of 17, 2026; small sample)
- Primary geography
- Wisconsin (100% of itemized 2026 grant dollars)
- Latest 990 filing
- Form 990-PF, 2026 View filing
Data from IRS Form 990-PF, 2026; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).
How to apply to ANTONIA FOUNDATION INCco F MICHAEL ARNOW
- How to Apply
-
Contact Laura J Arnow CPA and submit grant information to the address listed in line 2a of the filing. Awards are restricted to animal and wildlife conservation, nature education, habitat protection, and food security.
- Review Cycle
- None stated.
- Deadline
- None stated.
- Contact
Application contact: Laura J Arnow Cpa
Mailing address: 3966 North Lake Drive, Shorewood, WI 53211
Phone: (414) 964-4000
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who ANTONIA FOUNDATION INCco F MICHAEL ARNOW funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2026
The largest 2026 recipient was Urban Ecology Center ($175K). Together the top 10 received $652K.
Grant Size Distribution
77 grants across all recorded years
The most common grant size was under $50K: 57 grants of 77 (74%).
Geographic Focus
Where this funder awards grants
All grant dollars reported for 2026 went to recipients in Wisconsin. The listed grantees are located in communities including Milwaukee, Baraboo, Mequon, West Milwaukee, Port Washington, Saukville, and other Wisconsin locations.
Grant Distribution by State
Share of 2026 grant dollars across all 17 itemized grants.
States
Cities
Is ANTONIA FOUNDATION INCco F MICHAEL ARNOW open to new grantees?
29%
first-time grantees, 2026
In 2026, 5 of 17 grantees (29%) were first-time recipients. With only 17 grantees, that is a small sample: one grantee more or less moves the share by about 6 points. First grants averaged $15K; repeat grants $55K. How we count
Medians: $10K first-time, $45K repeat.
- 71% of 2026 grantees were also funded in 2025. Method
- Giving grew 60% from 2023 to 2026. Method
- In 2026 it paid out 132% of its IRS minimum distribution (the 5% rule). Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2026). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2026, annual grant giving ranged from $320K (2022) to $737K (2026). In 2026 it made 17 grants totaling $737K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Urban Ecology Center Milwaukee, WI | To Support Neighborhoodenviro Ed Project/Prairie Restoration | $175,000 |
| Milwaukee Public Museum Milwaukee, WI | To Support Bioblitzand Field Stationeducational Space | $110,000 |
| International Crane Foundation Baraboo, WI | To Support Educationalprogramming Andwelcome Center Theater | $80,000 |
| Mequon Nature Preserve Mequon, WI | To Support Fellowsprogram & Waterquality & Ag Progs | $75,000 |
| Zoological Society of Milw Milwaukee, WI | To Support Animalambassador & Studentintern Programs | $51,933 |
| Hunger Task Force West Milwaukee, WI | To Support Farmoperations | $50,000 |
| Vivent Health Milwaukee, WI | To Support Foodpantry and Grabn Go Bags | $40,000 |
| Wisconsin Humane Society Milwaukee, WI | To Support Wildliferehabilitation Ctrinternship Program | $25,000 |
| Lake Michigan Bird Observatory Port Washington, WI | To Support Neighborhoodhabitat Improvementproject | $25,000 |
| Riveredge Nature Center Saukville, WI | To Support Educationalprogramming | $20,000 |
Ready to take the next step with ANTONIA FOUNDATION INCco F MICHAEL ARNOW?
Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2026 | $10,353,608 | $1,212,761 | $831,650 | $736,933 | 17 | $754,635 | $1,039,044 | $573,001 |
| 2025 | $9,972,497 | $994,887 | $769,511 | $675,623 | 13 | $693,804 | $866,438 | $542,161 |
| 2024 | $9,747,121 | $1,354,784 | $656,112 | $584,150 | 15 | $600,688 | $763,943 | $483,656 |
| 2023 | $9,048,449 | $5,362,818 | $527,264 | $460,333 | 17 | $474,616 | $246,725 | $388,396 |
| 2022 | $4,212,895 | $728,124 | $373,195 | $319,750 | 15 | $330,881 | $655,619 | $260,721 |
| 2021 | $3,857,966 | $632,795 | $380,476 | $322,000 | 15 | — | $592,870 | $229,762 |
| 2020 | $3,605,647 | $1,107,063 | $403,677 | $360,250 | 14 | — | $1,075,253 | $193,320 |
Under IRS private-foundation payout rules, ANTONIA FOUNDATION INCco F MICHAEL ARNOW reported a distributable amount of $573K for 2026 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated October 2026.
Mission & Focus Areas
The foundation’s filing describes its charitable activity as supporting conservation efforts, nature educational programs, wildlife and wildlife habitat protection, and food security. Its 2025 filing lists award restrictions in those areas.
The 2026 grants show support for organizations working in nature education, habitat restoration, wildlife conservation and rehabilitation, and food access. For example, the Urban Ecology Center received support for a neighborhood environmental education project and prairie restoration; the Milwaukee Public Museum received support for a BioBlitz and field station educational space; and the International Crane Foundation received support for educational programming and a welcome center theater. Those grantees describe their own missions as connecting people in cities to nature and each other, inspiring curiosity and a desire to protect natural and cultural diversity, and advancing a world where cranes, people, and natural heritage thrive together, respectively.
Grantmaking
In filing year 2026, the foundation reported 17 grants totaling $736,933. Grants ranged from $10,000 to $175,000, with a median of $25,000. The largest awards included $175,000 to the Urban Ecology Center, $110,000 to the Milwaukee Public Museum, $80,000 to the International Crane Foundation, $75,000 to Mequon Nature Preserve, and $51,933 to the Zoological Society of Milwaukee. Other grants included $50,000 to Hunger Task Force, $40,000 to Vivent Health, and $25,000 each to Wisconsin Humane Society and Lake Michigan Bird Observatory.
The 2025 filing states that the foundation does not restrict giving to preselected organizations. It directs applicants to contact Laura J Arnow CPA and submit grant information to the address listed in line 2a of the filing. The stated restrictions are animal and wildlife conservation, nature education, habitat protection, and food security.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2026 filing lists Annette Marra as president, Laura J Arnow as vice president, Denasha A Scott as secretary, and F Michael Arnow as treasurer. Directors listed are Kathleen Ryan, Rachel J Arnow, and Matthew Haas.
ANTONIA FOUNDATION INCco F MICHAEL ARNOW is led by Annette Marra, President on every filing since 2020; 1 of 7 officers listed in 2026 is compensated.
Officers on the 2026 filing
Annette Marra
President
On filings since 2020
0.1 hrs/week
No compensation reported
Kathleen Ryan
Director
On filings since 2020
0.1 hrs/week
No compensation reported
Rachel J. Arnow
Director
On filings since 2024
0.1 hrs/week
No compensation reported
Matthew Haas
Director
New on the 2026 filing
0.1 hrs/week
No compensation reported
Laura J. Arnow
Vice President
On filings since 2020
1.5 hrs/week
$12K (2020) → $20K (2026)
Denasha A. Scott
Secretary
On filings since 2020
0.1 hrs/week
No compensation reported
F. Michael Arnow
Treasurer
On filings since 2020
0.1 hrs/week
No compensation reported
Former officers (1)
- Former: Christine Nuernberg (2020–2025) — Director
Data from IRS Form 990 filings, 2020–2026. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2026 IRS filing
The highest reported compensation on the 2026 filing was $20K, to Laura J Arnow (Vice Pres).
Frequently asked questions about ANTONIA FOUNDATION INCco F MICHAEL ARNOW
How much does ANTONIA FOUNDATION INCco F MICHAEL ARNOW give each year?
ANTONIA FOUNDATION INCco F MICHAEL ARNOW gave $737K across 17 grants in 2026, according to its 2026 IRS Form 990-PF. In 2025 it gave $676K across 13 grants.
What is ANTONIA FOUNDATION INCco F MICHAEL ARNOW's typical grant size?
ANTONIA FOUNDATION INCco F MICHAEL ARNOW's median grant in 2026 was $25,000, and its average grant was $43,349, across 17 grants on its 2026 IRS Form 990-PF. Organizations receiving their first grant from ANTONIA FOUNDATION INCco F MICHAEL ARNOW that year got $15K on average.
Where does ANTONIA FOUNDATION INCco F MICHAEL ARNOW give grants?
ANTONIA FOUNDATION INCco F MICHAEL ARNOW gives mostly in Wisconsin: 100% of the grant dollars itemized on its 2026 IRS Form 990-PF went to recipients there. The most frequent recipient cities were Milwaukee, WI (9 grants).
Does ANTONIA FOUNDATION INCco F MICHAEL ARNOW give general operating support?
Not in 2026: none of the 17 grants with a stated purpose on ANTONIA FOUNDATION INCco F MICHAEL ARNOW's 2026 IRS Form 990-PF were described as general or operating support.
Who are ANTONIA FOUNDATION INCco F MICHAEL ARNOW's largest grantees?
ANTONIA FOUNDATION INCco F MICHAEL ARNOW's largest 2026 grantees include Urban Ecology Center ($175,000), Milwaukee Public Museum ($110,000) and International Crane Foundation ($80,000), according to its 2026 IRS Form 990-PF. Together they received 50% of its itemized 2026 grant dollars.
How large is ANTONIA FOUNDATION INCco F MICHAEL ARNOW?
ANTONIA FOUNDATION INCco F MICHAEL ARNOW reported $10.4M in total assets on its 2026 IRS Form 990-PF. It paid out $755K in qualifying distributions that year, against a required minimum of $573K (roughly 5% of its investment assets).
What does ANTONIA FOUNDATION INCco F MICHAEL ARNOW fund?
The foundation’s filing describes its charitable activity as supporting conservation efforts, nature educational programs, wildlife and wildlife habitat protection, and food security. Its 2025 filing lists award restrictions in those areas. See mission & focus areas ↑
How do I apply for a grant from ANTONIA FOUNDATION INCco F MICHAEL ARNOW?
Contact Laura J Arnow CPA and submit grant information to the address listed in line 2a of the filing. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is ANTONIA FOUNDATION INCco F MICHAEL ARNOW's EIN?
ANTONIA FOUNDATION INCco F MICHAEL ARNOW's EIN (Employer Identification Number) is 39-1717099. IRS Form 990 filing data is available on this page for 2020–2026.
Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated October 2026.
Data update history
(8)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2020 (received by the IRS August 8, 2020)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS August 5, 2021)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS August 10, 2022)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS August 10, 2023)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS August 7, 2024)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS August 9, 2025)
- Added Form 990-PF for fiscal year 2026 (received by the IRS August 5, 2026)
- IRS filings on file for fiscal years 2020–2025
Other open foundation grants in Wisconsin
Wisconsin Open opportunities, soonest deadline first.
Explore Open Grants
Browse active grant opportunities in ANTONIA FOUNDATION INCco F MICHAEL ARNOW's focus areas in our free grants database
Similar Funders
Funders that support many of the same organizations
Herbert H Kohl Charities Inc
Milwaukee, WI
Herbert H Kohl Charities funds charitable organizations, with its affiliated philanthropy emphasizing education, civic engagement, and community initiatives in Milwaukee and Wisconsin; most 2025 grant dollars went to Wisconsin recipients. Grants ranged from $1,000 to $2 million, with a median of $5,000, and Homegrown Grants offer up to $5,000. It makes contributions only to preselected charities and does not accept unsolicited requests.
Assets
$3.6M
Grants
258
Total Given
$14.2M
Greater Milwaukee Foundation Inc
Milwaukee, WI
The Greater Milwaukee Foundation funds nonprofit programs, projects, general operations and capital needs, with priorities including early childhood education, housing, basic needs, health, arts and culture, and scientific research. Its competitive grants primarily serve Milwaukee, Ozaukee, Washington and Waukesha counties; in 2024, the median grant was about $27,800, though awards varied widely. It runs competitive grant cycles, but whether it accepts unsolicited requests is not stated.
Assets
$1.1B
Grants
838
Total Given
$66.8M
Green Bay Packers Foundation
Green Bay, WI
The Green Bay Packers Foundation funds Wisconsin charities working in areas such as families, athletics, children’s safety and education, animal welfare, and other focus areas that vary by year. Its 2026 announcement describes typical awards of $3,000–$8,000, though some grants are larger; it accepts online applications during its stated cycle, February 2–April 1, 2026.
Assets
$57.2M
Grants
530
Total Given
$3.6M
Dorothy Inbusch Foundation Inc
Milwaukee, WI
The Dorothy Inbusch Foundation supports arts and cultural organizations, community programs, and disaster relief, primarily in the Greater Milwaukee area. Its 2025 grants ranged from $800 to $50,000, with a median of $3,000. It accepts requests from 501(c)(3) organizations: contact Kathy L. Nusslock and submit a Common Grant Form or equivalent information; the stated deadline is October 31.
Assets
$2.4M
Grants
46
Total Given
$209K
The Brookby Foundation
Milwaukee, WI
The Brookby Foundation supports community well-being, with 2024 grants spanning arts, environmental conservation, and civic education; most funding went to organizations in Michigan, Wisconsin, and Oregon. Grants ranged from $100 to $500,000, with a median of $1,500. It accepts unsolicited requests through an online letter of inquiry process, with summer and winter cycles open to new applicants.
Assets
$30.7M
Grants
151
Total Given
$3.5M
Evan & Marion Helfaer Foundation
Elm Grove, WI
The Evan & Marion Helfaer Foundation supports Wisconsin organizations across education, health, conservation, culture, and human services. In 2025, it made 94 grants ranging from $350 to $400,000, with a median grant of $1,500; it accepts requests using a written form and lists no deadlines.
Assets
$16.3M
Grants
94
Total Given
$1.0M
More similar funders
More Funders in Wisconsin
Cite this profile
Grantable. (2026). ANTONIA FOUNDATION INCco F MICHAEL ARNOW funder profile. GrantGraph. Retrieved October 21, 2026, from https://grantable.co/funders/antonia-foundation-incco-f-michael-arnow-morg_8579e4c8f3e34bf284678ccdef10abfc
BibTeX
@misc{grantable_391717099_2026,
author = {{Grantable}},
title = {{ANTONIA FOUNDATION INCco F MICHAEL ARNOW funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/antonia-foundation-incco-f-michael-arnow-morg_8579e4c8f3e34bf284678ccdef10abfc},
note = {Accessed 2026-10-21. Data licensed CC BY 4.0}
}The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.
Figures come from ANTONIA FOUNDATION INCco F MICHAEL ARNOW's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.
ANTONIA FOUNDATION INCco F MICHAEL ARNOW down — hundreds of funders to go?