Data / Nonprofits / Wisconsin
Nonprofits in Wisconsin: 39,461 registered with the IRS
39,461 nonprofits are registered with the IRS in Wisconsin, 30,700 of them 501(c)(3) charities; the 11,192 that report revenue took in $66.83 billion. The most are in Milwaukee (4,681), Madison (3,220), Green Bay (927). The largest by revenue: Aurora Health Care Inc ($7.41 billion), Froedtert Memorial Lutheran Hospital Inc ($2.87 billion), The Medical College of Wisconsin Inc ($1.76 billion).
SpecStream is the live web data engine for teams and agents. It reads the IRS register of exempt organizations as the IRS updates it, and this page is that reading. Ask for the nonprofits you need by place, cause and size, with their latest Form 990 figures and websites, and they arrive in your sheet, CRM, Slack or agent.
By cause
- Education 3,510
- Recreation and sports 3,308
- Human services 2,427
- Religion-related 2,099
- Arts, culture and humanities 2,096
- Philanthropy, voluntarism and grantmaking foundations 1,838
- Youth development 1,642
- Community improvement and capacity building 1,472
- Health care 914
- Environment 889
- Animal-related 744
- Public and societal benefit 672
- Public safety, disaster preparedness and relief 534
- Housing and shelter 487
- Food, agriculture and nutrition 447
- Mental health and crisis intervention 433
- Crime and legal-related 303
- Mutual and membership benefit 302
- Employment 279
- Diseases, disorders and medical disciplines 277
- International, foreign affairs and national security 263
- Civil rights, social action and advocacy 213
- Medical research 116
- Science and technology 94
- Social science 20
By city
- Milwaukee 4,681
- Madison 3,220
- Green Bay 927
- Appleton 720
- La Crosse 521
- Eau Claire 495
- Waukesha 466
- Kenosha 439
- Oshkosh 437
- Wausau 399
- Racine 396
- Janesville 389
- Brookfield 383
- Sheboygan 376
- Fond Du Lac 311
- Oconomowoc 296
- Wauwatosa 295
- West Bend 262
- Sun Prairie 253
- Middleton 250
- Stevens Point 246
- Manitowoc 242
- Wisc Rapids 242
- De Pere 232
- West Allis 228
- Neenah 225
- Beloit 222
- Mequon 212
- Hudson 210
- New Berlin 199
- Menomonee FLS 198
- Chippewa FLS 192
- Rice Lake 190
- Dousman 188
- Watertown 187
- Greenfield 186
- Fitchburg 183
- Sturgeon Bay 182
- Pewaukee 175
- Burlington 174
- Superior 173
- Baraboo 165
- Marshfield 162
- Shawano 157
- Franklin 154
- Elkhorn 153
- Menomonie 152
- Lake Geneva 151
- Stoughton 150
- Verona 149
- Rhinelander 147
- Cedarburg 145
- Marinette 141
- River Falls 139
- Merrill 139
- Hayward 136
- Sparta 135
- Antigo 132
- Waupaca 132
- Muskego 130
- Oak Creek 128
- Hartland 126
- Grafton 126
- Monroe 126
- Monona 123
- Fort Atkinson 122
- Ashland 121
- Waunakee 120
- Richland Center 116
- Whitewater 115
- Menasha 114
- Beaver Dam 113
- Portage 113
- Onalaska 113
- Hartford 109
- Germantown 107
- Platteville 107
- Plymouth 101
- PRT Washingtn 100
- Viroqua 100
- Medford 100
- Combined LCKS 99
- Tomahawk 98
- Tomah 97
- BLK River FLS 97
- Oregon 95
- Jefferson 94
- Mukwonago 94
- Glendale 92
- Kaukauna 91
- Delavan 91
- Reedsburg 89
- Caledonia 86
- New Richmond 86
- Deforest 86
- New London 85
- Ripon 85
- Lancaster 78
- Waterford 78
- Eagle River 77
- Mt Pleasant 77
- Whitefish Bay 76
- Mount Horeb 76
- Sussex 76
- Edgerton 75
- Wautoma 75
- Berlin 75
- Kimberly 75
- McFarland 75
- Spooner 74
- Phillips 74
- Minocqua 74
- Chilton 74
- Ladysmith 73
- Lodi 72
- Dodgeville 72
- Columbus 70
- Delafield 69
- Ellsworth 69
- S Milwaukee 69
- Pleasant PR 68
- Sheboygan FLS 67
- Elm Grove 66
- Mosinee 66
- Baldwin 65
- Plover 65
- Mauston 64
- Milton 64
- PR Du Chien 63
- Holmen 63
- Two Rivers 63
- Neillsville 63
- Wisc Dells 62
- Juneau 62
- Kewaskum 61
- Clintonville 61
- Cumberland 60
- Altoona 60
- Shorewood 60
- Luxemburg 59
- Waupun 59
- East Troy 59
- Kewaunee 57
- Amery 57
- Cottage Grove 57
- Suamico 57
- Mayville 57
- Brown Deer 56
- Greendale 55
- Osceola 54
- Green Lake 54
- Oconto 54
- Washburn 53
- Darlington 52
- Little Chute 52
- Schofield 52
- Evansville 51
- Greenville 51
- Bloomer 50
- Poynette 50
- Union Grove 50
- Lake Mills 50
- Pulaski 50
- Slinger 50
- Mondovi 50
- Mineral Point 50
- St Croix FLS 49
- Hales Corners 48
- Cudahy 47
- Barron 45
- Spring Green 44
- West Salem 44
- Omro 44
- Adams 44
- New Holstein 43
- Balsam Lake 43
- PR Du Sac 43
- Chetek 43
- Denmark 42
- Montello 42
- Jackson 42
- Cambridge 42
- Kiel 42
- Crivitz 42
- Grantsburg 41
- Cross Plains 41
- Bristol 41
- Sauk City 41
- Durand 41
- Randolph 40
- Fox Point 40
- Belleville 40
- Shell Lake 40
- New Glarus 40
- Whitehall 40
- Seymour 39
- Boscobel 39
- Fennimore 39
- Webster 39
- Westby 38
- Waterloo 37
- Alma 37
- Frederic 37
- Hortonville 36
- Siren 36
- Three Lakes 35
- Freedom 35
- Osseo 35
- Somerset 35
- Thiensville 35
- Markesan 35
- Nekoosa 34
- Crandon 34
- Walworth 34
- Wales 34
- Brodhead 34
- Oconto Falls 33
- Mazomanie 33
- Big Bend 33
- Salem 33
- Johnson Creek 33
- Saukville 33
- Stanley 33
- Lomira 33
- Horicon 33
- Fall Creek 33
- Algoma 32
- Fredonia 32
- Sturtevant 32
- Pardeeville 32
- Athens 32
- Iron River 32
- Eagle 31
- Kohler 31
- Nashotah 31
- Windsor 31
- Arcadia 31
- Prescott 31
- Brillion 31
- Colfax 31
- Thorp 31
- Marathon 31
- Winneconne 30
- Elkhart Lake 29
- Clear Lake 29
- Fremont 29
- Necedah 29
- Rothschild 29
- Rio 28
- Westfield 28
- Bayfield 28
- Edgar 28
- Amherst 28
- Marion 28
- Black Earth 28
- Chippewa Falls 28
- Weston 28
- Cameron 28
- Campbellsport 28
- Egg Harbor 28
- Mishicot 28
- Luck 27
- Park Falls 27
- Princeton 27
- Peshtigo 27
- Hurley 27
- Franksville 26
- Fish Creek 26
- Gillett 26
- Mercer 26
- Shiocton 26
- Birchwood 26
- Williams Bay 26
- Cable 25
- Cuba City 25
- Wittenberg 25
- Hillsboro 25
- Land O Lakes 25
- Cadott 25
- Augusta 25
- Twin Lakes 25
- Cashton 25
- Random Lake 25
- Oneida 24
- Stratford 24
- Palmyra 24
- Reedsville 24
- Bayside 23
- Washington Is 23
- Spring Valley 23
- Fontana 23
- Marshall 23
- Trempealeau 23
- Woodruff 23
- Pittsville 23
- Bonduel 23
- Warrens 23
- Hubertus 23
- Deerfield 23
- New Lisbon 22
The 100 largest by revenue
| Organization | City | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|---|
| Aurora Health Care Inc | Milwaukee | 501(c)(3) | 2010 | $7.41 billion | $8.00 billion | 2024-12 | |
| Froedtert Memorial Lutheran Hospital Inc | Milwaukee | Health care | 501(c)(3) | 1968 | $2.87 billion | $1.52 billion | 2025-06 |
| The Medical College of Wisconsin Inc | Milwaukee | Education | 501(c)(3) | 1968 | $1.76 billion | $3.47 billion | 2025-06 |
| Gundersen Lutheran Medical Center Inc | La Crosse | Health care | 501(c)(3) | 1949 | $1.73 billion | $2.18 billion | 2025-09 |
| University of Wisconsin Medical Foundation Inc | Middleton | Health care | 501(c)(3) | 1995 | $1.57 billion | $823.5 million | 2025-06 |
| Security Health Plan of Wisconsin Inc | Marshfield | 501(c)(4) | 1989 | $1.50 billion | $393.6 million | 2024-12 | |
| MCHS Hospitals Inc | Marshfield | Health care | 501(c)(3) | 2016 | $1.46 billion | $885.6 million | 2024-12 |
| Froedtert Thedacare Health Inc | Milwaukee | Health care | 501(c)(3) | 2001 | $1.35 billion | $5.82 billion | 2025-06 |
| Gundersen Lutheran Administrative Services Inc | La Crosse | Health care | 501(c)(3) | 1988 | $1.25 billion | $1.11 billion | 2025-09 |
| Childrens Hospital of Wisconsin Inc | Milwaukee | Health care | 501(c)(3) | 1919 | $1.02 billion | $2.52 billion | 2024-12 |
| Delta Dental of Wisconsin Inc | Stevens Point | 501(c)(4) | 1966 | $984 million | $397.5 million | 2024-12 | |
| Bellin Memorial Hospital Inc | Green Bay | Health care | 501(c)(3) | 1934 | $906.6 million | $1.25 billion | 2025-09 |
| Marquette University | Milwaukee | Education | 501(c)(3) | 1970 | $840 million | $2.20 billion | 2025-06 |
| Community Care Inc | Brookfield | Human services | 501(c)(3) | 1977 | $807.6 million | $274.7 million | 2024-12 |
| Aspirus Wausau Hospital Inc | Wausau | Health care | 501(c)(3) | 1971 | $792 million | $410.8 million | 2025-06 |
| Mercy Health System Corporation | Janesville | Health care | 501(c)(3) | 1972 | $769.8 million | $988.3 million | 2025-06 |
| Prohealth Waukesha Memorial Hospital Inc | Waukesha | Health care | 501(c)(3) | 1958 | $693.8 million | $620 million | 2025-09 |
| University of Wisconsin Foundation | Madison | Education | 501(c)(3) | 1943 | $680.9 million | $6.32 billion | 2025-06 |
| Meriter Hospital Inc | Madison | Health care | 501(c)(3) | 1937 | $643.3 million | $1.03 billion | 2024-12 |
| Marshfield Clinic Inc | Marshfield | Health care | 501(c)(3) | 1987 | $596.5 million | $663.2 million | 2024-12 |
| Group Health Cooperative of South Central Wi | Madison | Health care | 501(c)(3) | 1983 | $518.1 million | $151 million | 2024-12 |
| Thedacare Regional Medical Center- Appleton Inc | Appleton | Health care | 501(c)(3) | 1959 | $492.1 million | $966.2 million | 2025-06 |
| Froedtert South Inc | Kenosha | Health care | 501(c)(3) | 1938 | $486.9 million | $727.8 million | 2025-06 |
| Dairyland Power Cooperative | La Crosse | 501(c)(12) | 1942 | $485.8 million | $1.57 billion | 2024-12 | |
| Quartz Health Plan Corporation | Fitchburg | 501(c)(4) | 1996 | $477.3 million | $129.1 million | 2024-12 | |
| Common Ground Healthcare Cooperative | Brookfield | Health care | 501(c)(3) | 2025 | $459.4 million | $262.1 million | 2023-12 |
| Chorus Community Health Plans Inc | Milwaukee | Health care | 501(c)(3) | 2010 | $448.7 million | $258.7 million | 2024-12 |
| Thedacare Inc | Neenah | Health care | 501(c)(3) | 1985 | $432.6 million | $1.49 billion | 2025-06 |
| Froedtert & the Medical College of Wisconsin Community Physicians Inc | Menomonee Falls | Health care | 501(c)(3) | 2013 | $431 million | $154.8 million | 2025-06 |
| Lakeland Care Incorporated | Fond Du Lac | Health care | 501(c)(3) | 2017 | $407.8 million | $76.4 million | 2024-12 |
| Ascension Ne Wisconsin Inc | Appleton | Health care | 501(c)(3) | 1946 | $402.3 million | $282.8 million | 2025-06 |
| Aspirus Rhinelander & Tomahawk Hospitals & Clinics Inc | Rhinelander | Health care | 501(c)(3) | 2023 | $361.3 million | $143.9 million | 2025-06 |
| Marshfield Clinic Health System Inc | Marshfield | Health care | 501(c)(3) | 2014 | $354.5 million | $711.3 million | 2024-12 |
| Rogers Memorial Hospital Incorporated | Oconomowoc | Health care | 501(c)(3) | 1971 | $346.8 million | $647.8 million | 2024-12 |
| Wisconsin Counties Association Group Health Trust | Madison | 501(c)(9) | 1991 | $331.4 million | $139.6 million | 2024-12 | |
| Thedacare Regional Medical Center - Neenah Inc | Appleton | Health care | 501(c)(3) | 1935 | $331.4 million | $737 million | 2025-06 |
| Beloit Health System Inc | Beloit | Health care | 501(c)(3) | 1965 | $314 million | $310.9 million | 2025-12 |
| Community Memorial Hospital of Menomonee Falls Inc | Menomonee FLS | Health care | 501(c)(3) | 1961 | $311.2 million | $128.9 million | 2025-06 |
| Childrens Hospital and Health System Inc | Milwaukee | Health care | 501(c)(3) | 1985 | $304.5 million | $158.2 million | 2024-12 |
| Versiti Blood Health Inc | Milwaukee | Health care | 501(c)(3) | 1994 | $281 million | $213 million | 2024-12 |
| Gundersen Clinic LTD | La Crosse | Health care | 501(c)(3) | 1989 | $277.2 million | $337.7 million | 2025-09 |
| Childrens Specialty Group Inc | Milwaukee | Health care | 501(c)(3) | 2000 | $274.6 million | $49.1 million | 2024-12 |
| Herzing University LTD | Milwaukee | Education | 501(c)(3) | 2015 | $243.9 million | $228.9 million | 2025-12 |
| Group Health Co-Operative of Eau Claire | Altoona | Health care | 501(c)(3) | 1994 | $230.1 million | $80.3 million | 2024-12 |
| Goodwill Retail Services Inc | Milwaukee | Employment | 501(c)(3) | 2002 | $224.6 million | $148.7 million | 2025-12 |
| Prohealth Care Inc | Waukesha | 501(c)(3) | 1984 | $216 million | $2.24 billion | 2025-09 | |
| Milwaukee School of Engineering | Milwaukee | Education | 501(c)(3) | 1935 | $211.4 million | $444.5 million | 2025-06 |
| Prohealth Medical Group Inc | Waukesha | Health care | 501(c)(3) | 2014 | $203 million | $174.5 million | 2025-09 |
| Operating Engineers Local 139 | Pewaukee | 501(c)(9) | 1972 | $196.2 million | $529.7 million | 2025-05 | |
| Aspirus Riverview Hospital & Clinics Inc | Wisc Rapids | Health care | 501(c)(3) | 1937 | $196.1 million | $107.6 million | 2025-06 |
| Aspirus Stevens Point Hospital & Clinics Inc | Stevens Point | Health care | 501(c)(3) | 2023 | $195.3 million | $91.7 million | 2025-06 |
| Thrivent Charitable Impact & Investing | Appleton | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1995 | $192 million | $1.10 billion | 2025-12 |
| Wisconsin Alumni Research Foundation | Madison | Education | 501(c)(3) | 1935 | $189.3 million | $3.43 billion | 2025-06 |
| Memorial Medical Center Inc | Ashland | Health care | 501(c)(3) | 1969 | $186.1 million | $292.4 million | 2025-09 |
| Ascendium Education Solutions Inc | Madison | Education | 501(c)(3) | 1997 | $186 million | $213.3 million | 2025-12 |
| Aurora Health Care Inc | Milwaukee | Health care | 501(c)(3) | 2010 | $184.6 million | $413.7 million | 2024-12 |
| Fort Healthcare Inc | Fort Atkinson | Health care | 501(c)(3) | 1944 | $166.7 million | $338 million | 2025-09 |
| Concordia University Inc | Mequon | Education | 501(c)(3) | 1941 | $166.3 million | $198.7 million | 2025-06 |
| Trusted Fraternal Life | Milwaukee | 501(c)(8) | 1941 | $162.8 million | $1.91 billion | 2024-12 | |
| CNH Welfare Benefit Trust | Racine | Mutual and membership benefit | 501(c)(9) | 1999 | $161.5 million | $67.1 million | 2024-12 |
| St Josephs Community Hospital of West Bend Inc | West Bend | Health care | 501(c)(3) | 1971 | $160.7 million | $90.3 million | 2025-06 |
| Carthage College | Kenosha | Education | 501(c)(3) | 1936 | $158.7 million | $472.8 million | 2025-06 |
| St Croix Regional Medical Center | St Croix FLS | Health care | 501(c)(3) | 1956 | $148.1 million | $108.6 million | 2024-12 |
| Southwest Health Center Inc | Platteville | Health care | 501(c)(3) | 1981 | $148 million | $203.5 million | 2025-06 |
| Carroll University Inc | Waukesha | Education | 501(c)(3) | 1942 | $147.1 million | $292.7 million | 2025-06 |
| Lakeview Medical Center Inc of Rice Lake | Marshfield | Health care | 501(c)(3) | 1976 | $140 million | $84.9 million | 2024-12 |
| Langlade Hospital-Hotel Dieu of St Joseph of Antigo Wisconsin | Antigo | Health care | 501(c)(3) | 1946 | $138.7 million | $400 million | 2025-06 |
| Aspirus Medical Group Inc | Wausau | Health care | 501(c)(3) | 1994 | $137.9 million | $46.2 million | 2025-06 |
| Lawrence University of Wisconsin | Appleton | Education | 501(c)(3) | 1965 | $137.9 million | $680.6 million | 2025-06 |
| Sauk Prairie Healthcare Inc | PR Du Sac | Health care | 501(c)(3) | 1958 | $136.8 million | $176.9 million | 2024-12 |
| Prohealth Oconomowoc Memorial Hospital Inc | Waukesha | Health care | 501(c)(3) | 1956 | $134 million | $114.4 million | 2025-09 |
| St Marys Hospital of Superior | Superior | 501(c)(3) | 1946 | $132.8 million | $247.9 million | 2025-06 | |
| Wisconsin Laborers Health Fund | Deforest | 501(c)(9) | 1969 | $132.3 million | $381.1 million | 2025-08 | |
| Door County Memorial Hospital | Sturgeon Bay | Health care | 501(c)(3) | 1944 | $129.3 million | $170.1 million | 2025-06 |
| Goodwill Industries of Southeastern Wisconsin Inc | Milwaukee | Employment | 501(c)(3) | 1945 | $127.4 million | $247.7 million | 2025-12 |
| Mile Bluff Medical Center Inc | Mauston | Health care | 501(c)(3) | 1963 | $126.9 million | $112.6 million | 2025-09 |
| Telephone and Data Systems Inc Employees Benefit Trust | Madison | 501(c)(9) | 1995 | $125.5 million | $13.1 million | 2024-12 | |
| Community Care Health Plan | Brookfield | Health care | 501(c)(4) | 2008 | $125.5 million | $43.4 million | 2024-12 |
| Upland Hills Health Inc | Dodgeville | Health care | 501(c)(3) | 1975 | $121.8 million | $190.9 million | 2025-09 |
| Reedsburg Area Medical Center Inc | Reedsburg | Health care | 501(c)(3) | 1968 | $121.7 million | $140.6 million | 2025-09 |
| International Childrens Fund Inc | Neenah | 501(c)(3) | 1978 | $119 million | $16.5 million | 2025-09 | |
| Ascendium Education Group Inc | Madison | Education | 501(c)(3) | 1967 | $118.1 million | $3.92 billion | 2025-12 |
| Thedacare Medical Center-Shawano Inc | Appleton | Health care | 501(c)(3) | 1963 | $115.1 million | $187.6 million | 2025-06 |
| Aspirus Medford Hospital & Clinics Inc | Medford | Health care | 501(c)(3) | 1964 | $114.1 million | $73.8 million | 2025-06 |
| Childrens Medical Group Inc | Milwaukee | Health care | 501(c)(3) | 1995 | $113.5 million | $35 million | 2024-12 |
| Aurora Medical Center Bay Area Inc | Milwaukee | Health care | 501(c)(3) | 1984 | $113.3 million | $169 million | 2024-12 |
| Wisconsin Electrical Employees Benefits Funds LLC | Madison | 501(c)(9) | 1990 | $112.2 million | $227.4 million | 2024-12 | |
| St Norbert College Inc | De Pere | Education | 501(c)(3) | 1946 | $111.6 million | $404.9 million | 2025-05 |
| Agrace Hospicecare Incorporated | Fitchburg | 501(c)(3) | 1979 | $110 million | $18.7 million | 2025-12 | |
| Vivent Health Inc | Milwaukee | Diseases, disorders and medical disciplines | 501(c)(3) | 1986 | $109.5 million | $234.8 million | 2025-08 |
| Goodwill Industries of North Central Wisc Inc | Menasha | Human services | 501(c)(3) | 1972 | $108.7 million | $133.7 million | 2025-12 |
| Ablelight Inc | Watertown | Human services | 501(c)(3) | 1937 | $107.1 million | $203 million | 2025-08 |
| Statewide Energy Efficiency Andrenewables Administration Inc | Lacrosse | Community improvement and capacity building | 501(c)(6) | 2009 | $104.8 million | $69.4 million | 2024-12 |
| Credit Union National Association Inc | Madison | Community improvement and capacity building | 501(c)(6) | 1971 | $103.9 million | $106.4 million | 2024-12 |
| Wisconsin Museum of Nature and Culture Inc | Milwaukee | Arts, culture and humanities | 501(c)(3) | 2021 | $103 million | $165 million | 2025-08 |
| Oconto Hospital & Medical Center Inc | Oconto | Health care | 501(c)(3) | 2005 | $101.5 million | $46.3 million | 2025-09 |
| Beloit College | Beloit | Education | 501(c)(3) | 1941 | $99.7 million | $201.7 million | 2025-06 |
| Beaver Dam Community Hospitals Inc | Beaver Dam | Health care | 501(c)(3) | 1972 | $99 million | $147 million | 2024-12 |
| Medical Services Inc | Hayward | Health care | 501(c)(3) | 1986 | $98.3 million | $144.3 million | 2025-03 |
| Vernon Memorial Healthcare Inc | Viroqua | Health care | 501(c)(3) | 1956 | $97.1 million | $149 million | 2025-09 |
Read from the IRS Exempt Organizations Business Master File, updated by the IRS on October 24, 2026 and rebuilt here every morning. Revenue and assets are from each organization's latest filing as the IRS lists it; the IRS record is the official one. Organizations only: no people are named on these pages.