ANTONIA FOUNDATION INCco F MICHAEL ARNOW
Historical FunderMilwaukee, Wisconsin · EIN 39-1717099 · Private foundation
Half of its grants to organizations were between $10,000 and $51,933.
How to apply
The foundation filed the following application information (Form 990-PF Part XV, tax year 2025):
| Contact | LAURA J ARNOW CPA |
|---|---|
| Address | 3966 NORTH LAKE DRIVE, SHOREWOOD WI 53211 |
| Phone | 4149644000 |
| Form and materials | SUBMIT GRANT INFORMATION TO ADDRESS IN 2a |
| Deadlines | NONE |
| Restrictions | ANIMAL AND WILDLIFE CONSERVATION, NATURE EDUCATION, AND HABITAT PROTECTION. FOOD SECURITY. |
Copied as filed. Deadlines on a tax return describe the foundation's usual process; they are not confirmation of a current open cycle.
What it funds
Share of grant lines on the latest return, classified from the purpose each grant states.
Where it gives
0% of grants went outside Wisconsin.
Grants paid in tax year 2025
| Recipient | Location | 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 |
| Restoring Lands | Milwaukee, WI | To support emergingconservationprofessionals program | $20,000 |
| Neighborhood House of Milwaukee | Milwaukee, WI | To support lead &learn conservationcorps | $15,000 |
| Boerner Botanical Gardens | Hales Corners, WI | To support childrens plant science andenvironmental prog | $10,000 |
| The Aldo Leopold Nature Center | Monona, WI | To support growing pridein wisc educ initiative& w.o.w. project | $10,000 |
| Schlitz Audubon Nature Center | Milwaukee, WI | To supportconservationpriority projects | $10,000 |
| University of Wisconsin-Milwaukee | Milwaukee, WI | To supportfood center andpantry | $10,000 |
| Gathering Waters | Madison, WI | To support landconservation lawprogram internship | $10,000 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $736,933 | 17 |
| 2024 | $675,623 | 13 |
| 2023 | $584,150 | 15 |
Sources
- IRS Form 990-PF, tax year 2025, filed Aug 5, 2026 - IRS e-file batch, object ID 202642179349101014
- IRS Tax Exempt Organization Search for EIN 39-1717099
- Profile updated Nov 5, 2026
Facts on this page come from the foundation's own IRS Form 990-PF filings as published by the IRS. Grantvello does not know whether a foundation is accepting proposals right now: a past grant is not an open opportunity. Always confirm current guidelines with the funder before applying.