Nonprofits in Wisconsin

Browse and explore nonprofit organizations in Wisconsin

100 organizations
Wisconsin is home to 5,694 nonprofit organizations with publicly available IRS Form 990 data. Together, these organizations report a combined annual revenue of $48.1 billion, reflecting the scale and economic impact of the nonprofit sector in Wisconsin. The largest nonprofit by revenue is AURORA HEALTH CARE INC GROUP RETURN, reporting $7.4 billion in its most recent Form 990 filing. Use the rankings and directory below to explore nonprofits in Wisconsin by revenue, city, or founding year.
Top Nonprofits by Revenue
# Organization Revenue Assets
1 AURORA HEALTH CARE INC GROUP RETURN
EIN: 611649250 · MILWAUKEE, WI
$7.4B $8.0B
2 Froedtert Memorial Lutheran Hospital Inc
EIN: 396105970 · MILWAUKEE, WI
$2.9B $1.5B
3 THE MEDICAL COLLEGE OF WISCONSIN INC
EIN: 390806261 · Milwaukee, WI
$1.8B $3.5B
4 Gundersen Lutheran Medical Center Inc
EIN: 390813416 · LA CROSSE, WI
$1.6B $2.1B
5 University of Wisconsin Medical Foundation Inc
EIN: 391824445 · Middleton, WI
$1.6B $823.5M
6 MCHS HOSPITALS INC
EIN: 810977948 · MARSHFIELD, WI
$1.5B $910.3M
7 SECURITY HEALTH PLAN OF WISCONSIN INC
EIN: 391572880 · MARSHFIELD, WI
$1.4B $403.6M
8 Froedtert ThedaCare Health Inc
EIN: 392014409 · MILWAUKEE, WI
$1.4B $5.8B
9 Gundersen Lutheran Administrative Services Inc
EIN: 391606449 · LA CROSSE, WI
$1.2B $1.1B
10 Delta Dental of Wisconsin Inc
EIN: 396094742 · Stevens Point, WI
$984.0M $397.5M
11 CHILDREN'S HOSPITAL OF WISCONSIN INC
EIN: 390812532 · MILWAUKEE, WI
$938.0M $2.4B
12 Marquette University
EIN: 390806251 · Milwaukee, WI
$840.0M $2.2B
13 BELLIN MEMORIAL HOSPITAL INC
EIN: 390884478 · GREEN BAY, WI
$834.7M $1.1B
14 COMMUNITY CARE INC
EIN: 391264667 · BROOKFIELD, WI
$807.6M $274.7M
15 ASPIRUS WAUSAU HOSPITAL INC
EIN: 391138241 · WAUSAU, WI
$792.0M $410.8M
16 St Vincent Hospital of the Hospital Sisters of the Third Order of St Franci s
EIN: 390817529 · Green Bay, WI
$739.7M $918.9M
17 Mercy Health System Corporation
EIN: 390816848 · JANESVILLE, WI
$685.9M $870.4M
18 UNIVERSITY OF WISCONSIN FOUNDATION
EIN: 390743975 · MADISON, WI
$680.9M $6.3B
19 PROHEALTH WAUKESHA MEMORIAL HOSPITAL INC
EIN: 390910727 · WAUKESHA, WI
$662.0M $616.0M
20 MARSHFIELD CLINIC INC
EIN: 390452970 · MARSHFIELD, WI
$633.6M $800.0M
21 MERITER HOSPITAL INC
EIN: 390806367 · MADISON, WI
$625.7M $991.6M
22 USB WELFARE BENEFIT PLAN
EIN: 411849855 · MILWAUKEE, WI
$532.1M $0
23 AGNESIAN HEALTHCARE INC
EIN: 390807236 · FOND DU LAC, WI
$521.5M $689.1M
24 GROUP HEALTH COOPERATIVE OF SOUTH CENTRAL WI
EIN: 391199466 · MADISON, WI
$518.1M $151.0M
25 COLUMBIA ST MARY'S HOSPITAL MILWAUKEE INC
EIN: 390806315 · GLENDALE, WI
$504.0M $624.7M
26 FROEDTERT SOUTH INC
EIN: 390816845 · KENOSHA, WI
$486.9M $727.8M
27 DAIRYLAND POWER COOPERATIVE
EIN: 390233059 · La Crosse, WI
$485.8M $1.6B
28 CHORUS COMMUNITY HEALTH PLANS INC
EIN: 271494977 · MILWAUKEE, WI
$473.6M $268.8M
29 COMMON GROUND HEALTHCARE COOPERATIVE
EIN: 453309488 · BROOKFIELD, WI
$459.4M $262.1M
30 ThedaCare Inc
EIN: 391509362 · Appleton, WI
$432.6M $1.5B
31 QUARTZ HEALTH PLAN CORPORATION
EIN: 391807071 · FITCHBURG, WI
$431.5M $113.5M
32 ASCENSION SE WISCONSIN HOSPITAL INC
EIN: 390816857 · MILWAUKEE, WI
$431.4M $314.6M
33 Froedtert & The Medical College of Wisconsin Community Physicians Inc
EIN: 272042610 · MENOMONEE FALLS, WI
$431.0M $154.8M
34 LAKELAND CARE INCORPORATED
EIN: 813724993 · FOND DU LAC, WI
$407.8M $76.4M
35 ASCENSION ALL SAINTS HOSPITAL INC
EIN: 391264986 · RACINE, WI
$372.7M $302.0M
36 UNIVERSITY OF WISCONSIN CREDIT UNION
EIN: 390671465 · MADISON, WI
$363.8M $5.7B
37 LANDMARK CREDIT UNION
EIN: 390203995 · BROOKFIELD, WI
$356.4M $6.4B
38 MARSHFIELD CLINIC HEALTH SYSTEM INC
EIN: 461495343 · MARSHFIELD, WI
$354.5M $711.3M
39 COMMUNITY FIRST CREDIT UNION
EIN: 396264347 · APPLETON, WI
$353.7M $6.4B
40 CONNEXUS CREDIT UNION
EIN: 390263945 · WAUSAU, WI
$349.1M $4.3B
41 INCLUSA FOUNDATION INC
EIN: 813565570 · STEVENS POINT, WI
$348.0M $108.0M
42 ROGERS MEMORIAL HOSPITAL INC
EIN: 391139101 · OCONOMOWOC, WI
$346.8M $647.8M
43 SUMMIT CREDIT UNION
EIN: 390230585 · MADISON, WI
$344.6M $6.9B
44 WISCONSIN COUNTIES ASSOCIATION GROUP HEALTH TRUST
EIN: 391692308 · MADISON, WI
$331.4M $139.6M
45 ThedaCare Regional Medical Center - Neenah Inc
EIN: 390830664 · Appleton, WI
$331.4M $737.0M
46 UNITED STUDENT AID FUNDS INC
EIN: 946050341 · Madison, WI
$330.1M $0
47 ASCENSION NE WISCONSIN INC
EIN: 390816818 · APPLETON, WI
$323.5M $318.1M
48 CHILDREN'S HOSPITAL AND HEALTH SYSTEM INC
EIN: 391500074 · MILWAUKEE, WI
$304.5M $158.2M
49 ROYAL CREDIT UNION
EIN: 396072970 · EAU CLAIRE, WI
$300.0M $5.2B
50 Ascendium Education Solutions Inc
EIN: 391853833 · MADISON, WI
$298.2M $351.5M
51 BELOIT HEALTH SYSTEM INC
EIN: 391028081 · Beloit, WI
$277.2M $279.6M
52 THRIVENT CHARITABLE IMPACT & INVESTING
EIN: 411802412 · APPLETON, WI
$264.4M $939.7M
53 CHILDREN'S SPECIALTY GROUP INC
EIN: 391990012 · MILWAUKEE, WI
$258.6M $50.6M
54 AURORA HEALTH CARE INC
EIN: 391442285 · MILWAUKEE, WI
$258.2M $3.9B
55 COMMUNITY MEMORIAL HOSPITAL OF MENOMONEE FALLS INC
EIN: 390987025 · MENOMONEE FALLS, WI
$257.7M $121.6M
56 GROUP HEALTH COOPERATIVE OF EAU CLAIRE
EIN: 396252984 · EAU CLAIRE, WI
$248.6M $101.2M
57 Gundersen Clinic Ltd
EIN: 391028657 · LA CROSSE, WI
$244.3M $220.1M
58 Corporate Central Credit Union
EIN: 391370057 · Muskego, WI
$244.0M $3.0B
59 COLUMBIA ST MARY'S INC
EIN: 391834639 · GLENDALE, WI
$238.2M $172.7M
60 ThedaCare Regional Medical Center - Appleton Inc
EIN: 390824015 · APPLETON, WI
$237.8M $897.8M
61 VERSITI WISCONSIN INC
EIN: 390807235 · MILWAUKEE, WI
$235.2M $188.8M
62 COVANTAGE CREDIT UNION
EIN: 390945701 · ANTIGO, WI
$234.4M $3.7B
63 ASPIRUS RHINELANDER & TOMAHAWK HOSPITALS & CLINICS INC
EIN: 391390638 · RHINELANDER, WI
$232.5M $133.4M
64 EDUCATORS CREDIT UNION
EIN: 390555293 · MT PLEASANT, WI
$231.7M $3.4B
65 THE MONROE CLINIC INC
EIN: 390808509 · MONROE, WI
$219.5M $301.9M
66 PROHEALTH MEDICAL GROUP INC
EIN: 391083015 · WAUKESHA, WI
$204.3M $178.9M
67 GOODWILL RETAIL SERVICES INC
EIN: 392040239 · MILWAUKEE, WI
$203.5M $154.1M
68 ASCENSION MEDICAL GROUP-SOUTHEAST WISCONSIN INC
EIN: 391791586 · GLENDALE, WI
$200.2M $57.1M
69 OPERATING ENGINEERS LOCAL 139 HEALTH BENEFIT FUND
EIN: 237166771 · PEWAUKEE, WI
$196.2M $529.7M
70 ASPIRUS STEVENS POINT HOSPITAL & CLINICS INC
EIN: 390808443 · STEVENS POINT, WI
$195.3M $91.7M
71 PROHEALTH CARE INC
EIN: 391486873 · WAUKESHA, WI
$181.9M $2.0B
72 COLUMBIA ST MARY'S HOSPITAL OZAUKEE INC
EIN: 390807063 · GLENDALE, WI
$181.7M $127.8M
73 ASPIRUS RIVERVIEW HOSPITAL & CLINICS INC
EIN: 390868982 · WISCONSIN RAPIDS, WI
$178.2M $179.3M
74 CNH WELFARE BENEFIT TRUST
EIN: 367045813 · RACINE, WI
$172.2M $80.9M
75 HERZING UNIVERSITY LTD
EIN: 271503981 · MILWAUKEE, WI
$171.4M $166.1M
76 MILWAUKEE SCHOOL OF ENGINEERING
EIN: 390477970 · MILWAUKEE, WI
$171.1M $400.4M
77 CONCORDIA UNIVERSITY INC
EIN: 390833608 · MEQUON, WI
$166.3M $198.7M
78 MEMORIAL MEDICAL CENTER INC
EIN: 237013497 · ASHLAND, WI
$164.7M $274.5M
79 CATHOLIC FINANCIAL LIFE
EIN: 390201015 · MILWAUKEE, WI
$161.8M $1.7B
80 ASCENSION ST FRANCIS HOSPITAL INC
EIN: 390907740 · MILWAUKEE, WI
$160.8M $98.4M
81 FORT HEALTHCARE INC
EIN: 390286215 · FORT ATKINSON, WI
$160.7M $322.0M
82 St Mary's Hospital Medical Center of Green Bay Inc - Hospital Sisters
EIN: 390818682 · Green Bay, WI
$153.2M $237.0M
83 LAKEVIEW MEDICAL CENTER INC OF RICE LAKE
EIN: 390837206 · RICE LAKE, WI
$152.6M $100.2M
84 SOUTHWEST HEALTH CENTER INC
EIN: 391370626 · PLATTEVILLE, WI
$148.0M $203.5M
85 CARROLL UNIVERSITY INC
EIN: 390806325 · WAUKESHA, WI
$147.1M $292.7M
86 WISCONSIN ALUMNI RESEARCH FOUNDATION
EIN: 390833612 · MADISON, WI
$140.8M $3.3B
87 MY CHOICE WISCONSIN HEALTH PLAN INC
EIN: 270093404 · GREENDALE, WI
$140.4M $59.5M
88 ST CROIX REGIONAL MEDICAL CENTER
EIN: 390890676 · ST CROIX FALLS, WI
$139.5M $104.4M
89 PROHEALTH OCONOMOWOC MEMORIAL HOSPITAL INC
EIN: 390794174 · OCONOMOWOC, WI
$138.7M $115.0M
90 LANGLADE HOSPITAL - HOTEL DIEU OF ST JOSEPH OF ANTIGO WISCONSIN
EIN: 390806429 · ANTIGO, WI
$138.7M $400.0M
91 FOX COMMUNITIES CREDIT UNION
EIN: 390738415 · APPLETON, WI
$138.0M $2.8B
92 ASPIRUS MEDICAL GROUP INC
EIN: 391670223 · WAUSAU, WI
$137.9M $46.2M
93 LAWRENCE UNIVERSITY OF WISCONSIN
EIN: 390806297 · APPLETON, WI
$137.9M $680.6M
94 CHILDREN'S HOSPITAL OF WISCONSIN FOUNDATION INC
EIN: 391500075 · MILWAUKEE, WI
$134.2M $1.6B
95 Sacred Heart Hospital of Hospital Sisters of Third Order of St Francis
EIN: 390807060 · Eau Claire, WI
$133.9M $543.4M
96 ST JOSEPH'S COMMUNITY HOSPITAL OF WEST BEND INC
EIN: 390806302 · WEST BEND, WI
$133.7M $85.0M
97 ST MARY'S HOSPITAL OF SUPERIOR
EIN: 411811073 · SUPERIOR, WI
$132.8M $247.9M
98 CAPITAL CREDIT UNION
EIN: 390394240 · GREEN BAY, WI
$132.2M $2.4B
99 DOOR COUNTY MEMORIAL HOSPITAL
EIN: 390806324 · STURGEON BAY, WI
$129.3M $170.1M
100 TELEPHONE AND DATA SYSTEMS INC EMPLOYEE BENEFIT TRUST
EIN: 363930160 · Madison, WI
$127.3M $14.8M
Data from IRS Form 990 filings. Click an organization name to view full details. © 2026 990 Finder by Trantor SpA.