Organizations
Largest first
By revenue on the last return. Organizations that file Form 990-N report no figures and come last.
| Organization | Return | Revenue |
|---|---|---|
| Dane County Humane SocietyMadison | Form 990 | $31,846,259FY2025 |
| Wisconsin Humane SocietyMilwaukee | Form 990 | $18,315,860FY2025 |
| International Crane Foundation IncBaraboo | Form 990 | $17,664,216FY2026 |
| Zoological Society of Milwaukee CountyMilwaukee | Form 990 | $14,059,943FY2025 |
| Humane Animal Welfare Society of Waukesha County IncWaukesha | Form 990 | $6,137,182FY2025 |
| International Order of T RooseveltMarshfield | Form 990 | $5,103,822FY2023 |
| Racine Zoological SocietyRacine | Form 990 | $3,847,150FY2024 |
| Kinnic Falls Alcohol-Drug Abuse Serv IncRiver Falls | Form 990 | $3,549,628FY2025 |
| Oshkosh Area Humane Society IncOshkosh | Form 990 | $3,360,081FY2025 |
| Cocos Heart Dog RescueSomerset | Form 990 | $3,091,402FY2024 |
| Lakeshore Humane Society IncManitowoc | Form 990 | $2,657,663FY2025 |
| Heartland Farm Sanctuary IncStoughton | Form 990 | $2,359,214FY2025 |
| Ridges Sanctuary IncBaileys Harbor | Form 990 | $2,279,054FY2025 |
| Humane Society of Sheboygan County IncSheboygan | Form 990 | $2,201,617FY2024 |
| The Humane Society of Southern Wisconsin IncJanesville | Form 990 | $2,072,761FY2024 |
| Washington County Humane Society IncSlinger | Form 990 | $1,938,059FY2024 |
| Coulee Region Humane Society IncOnalaska | Form 990 | $1,937,677FY2025 |
| Ocean Connections IncNashotah | Form 990 | $1,877,509FY2025 |
| Underdog Pet Rescue of Wisconsin IncMadison | Form 990 | $1,857,636FY2025 |
| Fox Valley Humane AssociationAppleton | Form 990 | $1,838,646FY2024 |
| Sauk County Humane SocietyBaraboo | Form 990 | $1,442,072FY2025 |
| Neenah Animal Shelter IncNeenah | Form 990 | $1,311,762FY2025 |
| Eau Claire Community Humane Association IncEau Claire | Form 990 | $1,304,226FY2024 |
| Portage County Humane Society IncorporatedPlover | Form 990 | $1,198,433FY2024 |
| Feathered Friends Sanctuary & Rescue IncEdgerton | Form 990 | $1,186,912FY2024 |
| Elmbrook Humane Society IncBrookfield | Form 990 | $1,170,575FY2024 |
| Humane Society of Waupaca County IncWaupaca | Form 990 | $1,148,430FY2025 |
| Shawano County Humane Society IncShawano | Form 990 | $1,102,737FY2024 |
| Saola FoundationMilwaukee | Form 990 | $1,005,247FY2025 |
| Madison Cat Project IncMadison | Form 990 | $1,005,061FY2025 |
| Clark County Humane Society IncNeillsville | Form 990 | $994,349FY2024 |
| Watertown Humane Society IncWatertown | Form 990 | $985,285FY2024 |
| Humane Society of Jefferson County IncJefferson | Form 990 | $961,441FY2024 |
| Fellow Mortals IncLake Geneva | Form 990 | $957,903FY2024 |
| Angels Wish IncVerona | Form 990 | $922,737FY2024 |
| Happily Ever After Animal SanctuaryincMarion | Form 990 | $916,712FY2024 |
| Northwoods Humane SocietyHayward | Form 990 | $886,868FY2025 |
| Stray Dog Support IncKewaskum | Form 990 | $870,281FY2025 |
| Humane Society of Marathon County IncWausau | Form 990 | $820,625FY2025 |
| Chippewa County Humane Association IncChippewa Falls | Form 990 | $784,898FY2025 |
| Green County Humane Society IncMonroe | Form 990 | $779,738FY2024 |
| Iowa County Humane SocietyDodgeville | Form 990 | $749,974FY2025 |
| Dunn County Humane Society IncMenomonie | Form 990 | $741,110FY2024 |
| Lakeland Animal Welfare Society IncElkhorn | Form 990 | $710,317FY2024 |
| Wildlife in Need Center LtdOconomowoc | Form 990 | $703,145FY2025 |
| Bobshouse 4DOGSEleva | Form 990 | $693,750FY2024 |
| Mink Veterinary Consulting and Research Service LtdGlenbeulah | Form 990 | $659,467FY2025 |
| Friends of Freeland FoundationGreen Lake | Form 990 | $637,798FY2024 |
| Chequamegon Humane Association IncAshland | Form 990 | $636,745FY2025 |
| Columbia County Humane SocietyPortage | Form 990 | $613,203FY2025 |
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