Private foundation · EIN 39-1717099

Antonia Foundation Incco F Michael Arnow

Accepts applications

Milwaukee, WI

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Tax year 2025 (period ending 2026-03-31) · Filed with IRS 2026 · Data as of 2026-10-24 · View filing on ProPublica · Source: IRS e-file object 202642179349101014
Total assets (EOY)$10,353,608
Grants paid$736,933
Typical (median) grant$25,000
Grants listed17
Giving in home state (WI)100%

Grant size distribution

RangeGrants
Under $5K0
$5K–$25K8
$25K–$100K7
$100K+2

Smallest $10,000 · Largest $175,000

Geographic focus

WI
100%

Common purposes

projecteducationalprogrammingcenterneighborhoodenviroprairierestorationbioblitzandfieldstationeducationalspaceandwelcometheaterfellowsprogramwaterqualityprogs

Giving history

Tax yearContributions paidTotal assetsGrants listed
2023$584,150$9,747,12115
2024$675,623$9,972,49713
2025$736,933$10,353,60817

Years shown are the filings ingested so far; more years are added as additional IRS batches are processed.

How to apply

ContactLAURA J ARNOW CPA
Address3966 NORTH LAKE DRIVE, SHOREWOOD, WI, 53211
Phone4149644000
Form & materialsSUBMIT GRANT INFORMATION TO ADDRESS IN 2a
DeadlinesNONE
RestrictionsANIMAL AND WILDLIFE CONSERVATION, NATURE EDUCATION, AND HABITAT PROTECTION. FOOD SECURITY.

Source: 990-PF Part XV line 2, tax year 2025.

Top recipients (tax year 2025)

RecipientLocationPurposeAmount
Urban Ecology CenterMILWAUKEE, WITO SUPPORT NEIGHBORHOODENVIRO ED PROJECT/PRAIRIE RESTORATION$175,000
Milwaukee Public MuseumMILWAUKEE, WITO SUPPORT BIOBLITZAND FIELD STATIONEDUCATIONAL SPACE$110,000
International Crane FoundationBARABOO, WITO SUPPORT EDUCATIONALPROGRAMMING ANDWELCOME CENTER THEATER$80,000
Mequon Nature PreserveMEQUON, WITO SUPPORT FELLOWSPROGRAM & WATERQUALITY & AG PROGS$75,000
Zoological Society Of MilwMILWAUKEE, WITO SUPPORT ANIMALAMBASSADOR & STUDENTINTERN PROGRAMS$51,933
Hunger Task ForceWEST MILWAUKEE, WITO SUPPORT FARMOPERATIONS$50,000
Vivent HealthMILWAUKEE, WITO SUPPORT FOODPANTRY AND GRABN GO BAGS$40,000
Wisconsin Humane SocietyMILWAUKEE, WITO SUPPORT WILDLIFEREHABILITATION CTRINTERNSHIP PROGRAM$25,000
Lake Michigan Bird ObservatoryPORT WASHINGTON, WITO SUPPORT NEIGHBORHOODHABITAT IMPROVEMENTPROJECT$25,000
Riveredge Nature CenterSAUKVILLE, WITO SUPPORT EDUCATIONALPROGRAMMING$20,000
Restoring LandsMILWAUKEE, WITO SUPPORT EMERGINGCONSERVATIONPROFESSIONALS PROGRAM$20,000
Neighborhood House Of MilwaukeeMILWAUKEE, WITO SUPPORT LEAD &LEARN CONSERVATIONCORPS$15,000
Boerner Botanical GardensHALES CORNERS, WITO SUPPORT CHILDRENS PLANT SCIENCE ANDENVIRONMENTAL PROG$10,000
The Aldo Leopold Nature CenterMONONA, WITO SUPPORT GROWING PRIDEIN WISC EDUC INITIATIVE& W.O.W. PROJECT$10,000
Schlitz Audubon Nature CenterMILWAUKEE, WITO SUPPORTCONSERVATIONPRIORITY PROJECTS$10,000
University Of Wisconsin-MilwaukeeMILWAUKEE, WITO SUPPORTFOOD CENTER ANDPANTRY$10,000
Gathering WatersMADISON, WITO SUPPORT LANDCONSERVATION LAWPROGRAM INTERNSHIP$10,000
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