Largest Nonprofits in Wisconsin (2023)

Top nonprofits ranked by total revenue

50 organizations
Year: Latest 2024 2023 2022
# Organization Revenue Assets Trantor Score
1 AURORA HEALTH CARE INC GROUP RETURN
EIN: 611649250 · MILWAUKEE, WI
$6.8B $7.5B 678
2 FROEDTERT MEMORIAL LUTHERAN HOSPITAL INC
EIN: 396105970 · MILWAUKEE, WI
$2.5B $1.3B 647
3 THE MEDICAL COLLEGE OF WISCONSIN INC
EIN: 390806261 · Milwaukee, WI
$1.5B $3.0B 589
4 MCHS HOSPITALS INC
EIN: 810977948 · MARSHFIELD, WI
$1.5B $910.3M 565
5 SECURITY HEALTH PLAN OF WISCONSIN INC
EIN: 391572880 · MARSHFIELD, WI
$1.4B $403.6M 543
6 University of Wisconsin Medical Foundation Inc
EIN: 391824445 · Middleton, WI
$1.2B $747.4M 579
7 Gundersen Lutheran Medical Center Inc
EIN: 390813416 · LA CROSSE, WI
$1.1B $2.0B 639
8 FROEDTERT HEALTH INC
EIN: 392014409 · MILWAUKEE, WI
$1.1B $3.4B 568
9 CHILDREN'S HOSPITAL OF WISCONSIN INC
EIN: 390812532 · MILWAUKEE, WI
$938.0M $2.4B 628
10 Delta Dental of Wisconsin Inc
EIN: 396094742 · Stevens Point, WI
$922.3M $373.1M 616
11 GUNDERSEN LUTHERAN ADMINISTRATIVE SERVICES INC
EIN: 391606449 · LA CROSSE, WI
$866.3M $1.0B 484
12 COMMUNITY CARE INC
EIN: 391264667 · BROOKFIELD, WI
$759.8M $285.8M 654
13 BELLIN MEMORIAL HOSPITAL INC
EIN: 390884478 · GREEN BAY, WI
$746.1M $1.1B 614
14 Marquette University
EIN: 390806251 · Milwaukee, WI
$710.0M $2.0B 592
15 MY CHOICE WISCONSIN INC
EIN: 811970070 · GREENDALE, WI
$686.3M $266.6M 599
16 Mercy Health System Corporation
EIN: 390816848 · JANESVILLE, WI
$685.9M $870.4M 636
17 ASPIRUS WAUSAU HOSPITAL INC
EIN: 391138241 · WAUSAU, WI
$681.3M $412.2M 565
18 St Vincent Hospital of the Hospital Sisters of the Third Order of St Franci s
EIN: 390817529 · Green Bay, WI
$673.7M $867.8M 613
19 MARSHFIELD CLINIC INC
EIN: 390452970 · MARSHFIELD, WI
$633.6M $800.0M 528
20 MERITER HOSPITAL INC
EIN: 390806367 · MADISON, WI
$625.7M $991.6M 596
21 PROHEALTH WAUKESHA MEMORIAL HOSPITAL INC
EIN: 390910727 · WAUKESHA, WI
$577.3M $619.5M 539
22 GROUP HEALTH COOPERATIVE OF SOUTH CENTRAL WI
EIN: 391199466 · MADISON, WI
$531.6M $137.8M 560
23 AGNESIAN HEALTHCARE INC
EIN: 390807236 · FOND DU LAC, WI
$521.5M $689.1M 565
24 DAIRYLAND POWER COOPERATIVE
EIN: 390233059 · La Crosse, WI
$494.5M $1.6B 491
25 UNIVERSITY OF WISCONSIN FOUNDATION
EIN: 390743975 · MADISON, WI
$490.5M $5.3B 615
26 CHORUS COMMUNITY HEALTH PLANS INC
EIN: 271494977 · MILWAUKEE, WI
$473.6M $268.8M 636
27 COMMON GROUND HEALTHCARE COOPERATIVE
EIN: 453309488 · BROOKFIELD, WI
$459.4M $262.1M 574
28 INCLUSA FOUNDATION INC
EIN: 813565570 · STEVENS POINT, WI
$439.0M $209.5M 679
29 QUARTZ HEALTH PLAN CORPORATION
EIN: 391807071 · FITCHBURG, WI
$431.5M $113.5M 587
30 ThedaCare Regional Medical Center - Appleton Inc
EIN: 390824015 · APPLETON, WI
$429.1M $815.3M 691
31 CONNEXUS CREDIT UNION
EIN: 390263945 · WAUSAU, WI
$392.5M $5.3B 592
32 FROEDTERT SOUTH INC
EIN: 390816845 · KENOSHA, WI
$382.7M $610.2M 638
33 LAKELAND CARE INCORPORATED
EIN: 813724993 · FOND DU LAC, WI
$382.5M $81.2M 567
34 FROEDTERT & THE MEDICAL COLLEGE OF WISCONSIN COMMUNITY PHYSICIANS INC
EIN: 272042610 · MENOMONEE FALLS, WI
$371.3M $110.2M 579
35 Thedacare Inc
EIN: 391509362 · Appleton, WI
$365.6M $1.2B 475
36 WISCONSIN COUNTIES ASSOCIATION GROUP HEALTH TRUST
EIN: 391692308 · MADISON, WI
$363.4M $119.6M 571
37 MARSHFIELD CLINIC HEALTH SYSTEM INC
EIN: 461495343 · MARSHFIELD, WI
$356.6M $687.5M 559
38 LANDMARK CREDIT UNION
EIN: 390203995 · BROOKFIELD, WI
$356.4M $6.4B 560
39 SUMMIT CREDIT UNION
EIN: 390230585 · MADISON, WI
$344.6M $6.9B 623
40 CHILDREN'S HOSPITAL AND HEALTH SYSTEM INC
EIN: 391500074 · MILWAUKEE, WI
$308.0M $153.8M 534
41 ROYAL CREDIT UNION
EIN: 396072970 · EAU CLAIRE, WI
$300.0M $5.2B 573
42 Ascendium Education Solutions Inc
EIN: 391853833 · MADISON, WI
$298.2M $351.5M 730
43 COMMUNITY FIRST CREDIT UNION
EIN: 396264347 · APPLETON, WI
$283.7M $5.6B 523
44 UNIVERSITY OF WISCONSIN CREDIT UNION
EIN: 390671465 · MADISON, WI
$280.9M $5.3B 601
45 BELOIT HEALTH SYSTEM INC
EIN: 391028081 · Beloit, WI
$277.2M $279.6M 576
46 CHILDREN'S SPECIALTY GROUP INC
EIN: 391990012 · MILWAUKEE, WI
$258.6M $50.6M 588
47 AURORA HEALTH CARE INC
EIN: 391442285 · MILWAUKEE, WI
$258.2M $3.9B 495
48 COMMUNITY MEMORIAL HOSPITAL OF MENOMONEE FALLS INC
EIN: 390987025 · MENOMONEE FALLS, WI
$257.7M $121.6M 653
49 ThedaCare Regional Medical Center - Neenah Inc
EIN: 390830664 · APPLETON, WI
$255.0M $686.2M 668
50 GROUP HEALTH COOPERATIVE OF EAU CLAIRE
EIN: 396252984 · EAU CLAIRE, WI
$248.6M $101.2M 601
Data from IRS Form 990 filings. Click an organization name to view full details. © 2026 990 Finder by Trantor SpA.