ANTONIA FOUNDATION INCco F MICHAEL ARNOW
ANTONIA FOUNDATION INCco F MICHAEL ARNOW is a private foundation based in Milwaukee, Wisconsin. Its stated charitable activity is to disburse funds for conservation efforts, nature education, wildlife and habitat protection, and food security.
Key facts about ANTONIA FOUNDATION INCco F MICHAEL ARNOW
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.
- EIN
- 39-1717099
- Latest 990 filing
- Form 990-PF, 2026
- Annual giving (2026)
- $736,933
- Grants made (2026)
- 17
- Average grant
- $43,349
- Median grant
- $25,000
- New grantees (estimate)
- 29% first-time grantees (5 of 17, 2026)
- Total assets
- $10,353,608
- Primary geography
- Wisconsin (100% of itemized 2026 grant dollars)
- How to apply
- Contact Laura J Arnow CPA and submit grant information to the address specified in section 2a of the filing. Full details ↓
- Deadline
- None.
Data from IRS Form 990-PF, 2026; updated September 2026. New grantees are estimated by matching recipient names across years (methodology). Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Financial Overview
From 2026 IRS Form 990-PF · View filing
Total Assets
$10.4M
+3.8% YoY
Annual Giving
$737K
+9.1% YoY
Grant Count
17
+30.8% YoY
Avg Grant Size
$43K
-16.6% YoY
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.
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. 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.
Mission & Focus Areas
The foundation states that its sole activity is to disburse funds to benefit conservation efforts, further nature education programs, protect wildlife and wildlife habitats, and address food security. Its stated award restrictions cover animal and wildlife conservation, nature education, habitat protection, and food security.
The grantees’ own mission statements illustrate the kinds of organizations it supports. The Urban Ecology Center says it connects people in cities to nature and each other. The International Crane Foundation describes work to conserve cranes and the ecosystems, watersheds, and flyways on which they depend. Hunger Task Force says it works to prevent hunger and malnutrition by providing food and promoting policies toward a hunger-free community.
Grantmaking
In 2025, the foundation made 13 grants totaling $675,623. Grants ranged from $10,000 to $175,000, with a median of $46,333. Notable grants included $175,000 to Urban Ecology Center for neighborhood environmental education and prairie restoration; $110,000 to Milwaukee Public Museum for a BioBlitz and field station educational space; $85,000 to Mequon Nature Preserve for its fellows program and water quality and agriculture programs; and $80,000 to International Crane Foundation for educational programming and a welcome center theater.
Review Cycle
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Geographic Focus
Where this funder awards grants
All grant dollars listed for 2025 went to recipients in Wisconsin. The 2025 grantees were located in Milwaukee, West Milwaukee, Mequon, Baraboo, Hales Corners, Monona, and Milton.
Grant Distribution by State
Share of 2026 grant dollars across all 17 itemized grants.
States
Cities
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.
Grant Insights
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%).
Giving History
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 |
Financial History
Multi-year comparison from IRS filings
| Filing year | Grant total | Number of grants |
|---|---|---|
| 2025 | $675,623 | 13 |
| 2024 | $584,150 | 15 |
| 2023 | $460,333 | 17 |
| Metric | 2026 | 2025 | 2024 |
|---|---|---|---|
| Total Assets | $10,353,608 | $9,972,497 | $9,747,121 |
| Revenue | $1,212,761 | $994,887 | $1,354,784 |
| Expenses | $831,650 | $769,511 | $656,112 |
| Qualifying Distributions | $754,635 | $693,804 | $600,688 |
| Net Investment Income | $1,039,044 | $866,438 | $763,943 |
| Distributable Amount | $573,001 | $542,161 | $483,656 |
Data update history
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
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 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, Christine Nuernberg, and Rachel J Arnow.
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).
Contact
Application contact: Laura J Arnow Cpa
Mailing address: 3966 North Lake Drive, Shorewood, WI 53211
Phone: (414) 964-4000
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 states that its sole activity is to disburse funds to benefit conservation efforts, further nature education programs, protect wildlife and wildlife habitats, and address food security. 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 specified in section 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 September 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.
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