Wisconsin Employer EIN Lookup
Use this WisconsinEIN lookup to find an employer’s Employer Identification Number from its public Form 5500 filing. 17,150 employers based in Wisconsin have filed a Form 5500, covering 20,581 retirement and health plans with $268.7B in reported assets. The largest are listed below with their EIN — open any employer to see the full filing.
Employers
17,150
Plans
20,581
Total assets
$268.7B
Largest employers in Wisconsin by EIN
Form 5500 search →| Employer | EIN | City | Plans | Participants | Assets |
|---|---|---|---|---|---|
| Advocate Aurora Health, Inc. | 82-4184596 | Milwaukee | 2 | 166,327 | $10.5B |
| Northwestern Mutual Life INS.Co. | 39-0509570 | Milwaukee | 14 | 81,687 | $9.7B |
| Johnson Controls, Inc. | 39-0380010 | Milwaukee | 9 | 56,520 | $9.3B |
| WEC Energy Group, Inc. | 39-1391525 | Milwaukee | 13 | 17,802 | $7.1B |
| Kimberly-Clark Corporation | 39-0394230 | Neenah | 3 | 24,940 | $5.9B |
| Rockwell Automation | 25-1797617 | Milwaukee | 7 | 26,905 | $5.6B |
| Fiserv Solutions, LLC. | 39-1833695 | Milwaukee | 3 | 45,336 | $5.1B |
| Schreiber Foods, Inc. | 39-1017450 | Green Bay | 6 | 20,589 | $4.5B |
| Molson Coors Beverage Company USA LLC | 26-2387410 | Milwaukee | 19 | 52,516 | $3.7B |
| Building Trades United Pension Trust Fund | 51-6049409 | ELM Grove | 1 | 9,922 | $3.5B |
| American Family Mutual Insurance Company, S.I. | 39-0273710 | Madison | 4 | 33,048 | $3.5B |
| Harley-Davidson Motor Company, Inc. | 39-1972791 | Milwaukee | 6 | 5,892 | $3.3B |
| Sentry Insurance Company | 39-0333950 | Stevens Point | 17 | 22,109 | $3.3B |
| Marshfield Clinic, Inc. | 39-0452970 | Marshfield | 2 | 16,548 | $3.1B |
| Epic Systems Corporation | 39-1319950 | Verona | 3 | 31,014 | $2.9B |
| Gundersen Lutheran Administrative Services, Inc. | 39-1606449 | La Crosse | 3 | 10,104 | $2.9B |
| Kohler Co. & Subsidiaries | 39-0402810 | Kohler | 5 | 35,612 | $2.8B |
| Oshkosh Corporation | 39-0520270 | Oshkosh | 6 | 32,449 | $2.7B |
| The Medical College of Wisconsin, Inc. | 39-0806261 | Milwaukee | 6 | 33,756 | $2.6B |
| Case New Holland Industrial Inc. | 39-1982756 | Racine | 8 | 26,273 | $2.5B |
| S.C. Johnson & SON, Inc. | 39-0379990 | Racine | 6 | 10,760 | $2.5B |
| Froedtert Thedacare Health, Inc. | 39-2014409 | Menomonee Falls | 6 | 33,319 | $2.5B |
| Telephone and Data Systems, Inc. | 36-2669023 | Madison | 3 | 21,035 | $2.3B |
| KOHL'S Inc. | 13-3357362 | Menomonee Falls | 3 | 154,895 | $2.3B |
| SNAP-on Incorporated | 39-0622040 | Kenosha | 6 | 17,111 | $2.2B |
| University of Wisconsin Medical Foundation, Inc. | 39-1824445 | Middleton | 5 | 13,879 | $2.2B |
| Robert W. Baird & Co., Inc. | 39-6037917 | Milwaukee | 2 | 10,492 | $2.2B |
| Credit Union Retirement Plan Association | 35-2491258 | Milwaukee | 1 | 19,109 | $2.1B |
| QUAD/Graphics, Inc. | 39-1152983 | Sussex | 3 | 24,395 | $2.1B |
| Joint Board of Trustees of North Central States Regional Council of | 39-6079856 | EAU Claire | 1 | 7,316 | $1.8B |
| Foley & Lardner LLP | 39-0473800 | Milwaukee | 6 | 8,168 | $1.7B |
| Amcor Flexibles North America, Inc. | 43-0178130 | Oshkosh | 8 | 16,974 | $1.7B |
| Alliant Energy Corporate Services, Inc. | 39-1914946 | Madison | 4 | 6,345 | $1.7B |
| Komatsu Mining Corp. | 39-1566457 | Milwaukee | 4 | 14,135 | $1.7B |
| Associated BANC-Corp. | 39-1098068 | Green Bay | 7 | 18,368 | $1.5B |
| CMFG Life Insurance Company | 39-0230590 | Madison | 9 | 11,369 | $1.3B |
| American Builders & Contractors Supply Co Inc. | 39-1413708 | Beloit | 3 | 38,634 | $1.3B |
| Baker Tilly Advisory Group Parent, LP | 39-0859910 | Madison | 1 | 6,867 | $1.2B |
| Harley-Davidson Motor Company Group, LLC | 39-1805420 | Milwaukee | 5 | 12,636 | $1.1B |
| Trustees of Wisconsin Laborers' Pension Fund | 39-6198530 | Deforest | 1 | 4,045 | $1.1B |
| KWIK TRIP, Inc. | 39-1036365 | La Crosse | 2 | 61,174 | $1.1B |
| Board of Trustees Milwaukee Drivers Pension Fund | 39-6045229 | Milwaukee | 1 | 2,309 | $1.1B |
| Childrens Hospital and Health System, Inc. | 39-1500074 | Milwaukee | 6 | 35,142 | $1.0B |
| Aspirus, Inc. | 39-1328331 | Wausau | 3 | 22,801 | $1.0B |
| Uline, Inc. | 36-3684738 | Pleasant Prairie | 2 | 17,175 | $968.3M |
| Regal Rexnord Corporation | 39-0875718 | Milwaukee | 3 | 16,081 | $961.3M |
| QBE Holdings, Inc. | 52-1147383 | Sun Prairie | 2 | 2,650 | $929.6M |
| Marquette University | 39-0806251 | Milwaukee | 7 | 6,005 | $926.0M |
| Krueger International Inc. | 39-1375589 | Green Bay | 3 | 5,306 | $902.6M |
| Schneider National, Inc. | 39-1258315 | Green Bay | 3 | 33,152 | $893.4M |
| Green Bay Packaging, Inc. | 39-0783183 | Green Bay | 9 | 14,535 | $872.0M |
| Bellin Health Systems, Inc. | 39-1512904 | Green Bay | 1 | 5,513 | $861.9M |
| Madison Gas and Electric Company | 39-0444025 | Madison | 14 | 5,177 | $852.5M |
| Thedacare Inc. | 39-1509362 | Neenah | 10 | 39,468 | $837.6M |
| Wipfli LLP | 39-0758449 | Wausau | 2 | 4,634 | $810.7M |
| Woodman's Food Market, Inc. | 39-0887447 | Janesville | 2 | 4,706 | $795.6M |
| Trustage Financial Group, Inc. | 45-4418520 | Madison | 2 | 2,421 | $778.2M |
| Exact Sciences Corporation | 02-0478229 | Madison | 2 | 13,721 | $748.8M |
| MGIC Investment Corporation | 39-1486475 | Milwaukee | 4 | 1,756 | $746.1M |
| Menasha Corporation | 39-1367484 | Neenah | 3 | 14,401 | $729.0M |
| Trustees of Wisconsin NECA-IBEW | 39-1571911 | Madison | 1 | 2,796 | $715.2M |
| Waupaca Foundry, Inc. | 39-0880924 | Waupaca | 4 | 7,338 | $701.9M |
| Manpowergroup Inc. | 39-1672779 | Milwaukee | 3 | 80,032 | $686.1M |
| Kerry Inc. | 51-0274193 | Beloit | 5 | 10,821 | $675.5M |
| Plexus Corp. | 39-1344447 | Neenah | 2 | 5,443 | $668.4M |
| Sargento Foods Inc. | 39-0859334 | Plymouth | 2 | 4,891 | $660.1M |
| WPS Insurance Corporation | 39-1268299 | Monona | 11 | 7,873 | $657.9M |
| Electrical Construction Industry Pension Plan Board of Trustees | 39-1291994 | Wauwatosa | 1 | 2,376 | $651.5M |
| Saputo Cheese USA Inc. | 39-1629977 | Milwaukee | 2 | 15,456 | $649.9M |
| Acuity | 39-0491540 | Sheboygan | 4 | 3,504 | $639.1M |
| A O Smith Corporation | 39-0619790 | Milwaukee | 4 | 10,647 | $636.3M |
| Prohealth Care, Inc. | 39-1486873 | Waukesha | 3 | 7,870 | $635.3M |
| Quarles & Brady LLP | 39-0432630 | Milwaukee | 3 | 2,101 | $601.2M |
| Clarios, LLC | 39-1684871 | Glendale | 4 | 11,980 | $585.3M |
| Greenheck FAN Corporation | 39-0920319 | Schofield | 2 | 8,920 | $578.9M |
| Fairway Independent Mortgage Corporation | 76-0503625 | Madison | 3 | 13,191 | $577.9M |
| ZURN LLC | 04-3722228 | Milwaukee | 7 | 5,499 | $567.3M |
| Operating Engineers Local 139 Health Benefit Fund | 23-7166771 | Pewaukee | 2 | 7,422 | $529.7M |
| Ashley Furniture Industries, LLC | 39-1141201 | Arcadia | 2 | 30,066 | $527.9M |
| Meriter Health Systems, Inc. | 39-1412318 | Madison | 3 | 7,218 | $527.1M |
| Charter Manufacturing Company, Inc. | 39-1138388 | Mequon | 2 | 4,587 | $503.3M |
| Rite-HITE Holding Corporation | 39-1913562 | Milwaukee | 2 | 4,731 | $493.8M |
| Prevea Clinic, Inc. | 39-1839349 | Green Bay | 2 | 3,963 | $491.7M |
| Sub-ZERO Group, Inc. | 56-2628046 | Madison | 3 | 6,773 | $489.2M |
| Board of Trustees | 39-1511099 | Kaukauna | 1 | 2,130 | $476.8M |
| United Food and Commercial Workers Employers Pension Plan | 39-6069053 | Greendale | 1 | 304 | $474.7M |
| West Bend Insurance Company | 39-0698170 | West Bend | 10 | 3,241 | $463.0M |
| The Manitowoc Company, Inc. | 39-0448110 | Milwaukee | 4 | 5,340 | $448.2M |
| Board of Trustees of the Electrical Workers Local Union 159 Retirement | 35-2759032 | Madison | 1 | 1,819 | $433.0M |
| Lands' END, Inc. | 36-2512786 | Dodgeville | 4 | 9,002 | $430.2M |
| Brady Corporation | 39-0178960 | Milwaukee | 3 | 4,481 | $427.5M |
| Hatco Corporation | 39-0913489 | Milwaukee | 5 | 2,736 | $419.1M |
| Promega Corporation | 39-1388811 | Madison | 3 | 3,722 | $418.4M |
| Wisconsin Association of Independent Colleges and Universities | 39-1039417 | Madison | 1 | 1,904 | $418.0M |
| Michael Best and Friedrich, LLP | 39-0934985 | Milwaukee | 4 | 1,635 | $409.0M |
| Modine Manufacturing Company | 39-0482000 | Racine | 2 | 6,615 | $407.5M |
| Faith Technologies Incorporated | 41-2065665 | Menasha | 3 | 10,085 | $403.6M |
| Electrical Construction Industry Annuity Plan Board of Trustees | 39-1711748 | Wauwatosa | 1 | 3,812 | $403.5M |
| U.S. Venture, Inc. | 39-0964014 | Appleton | 7 | 9,608 | $398.9M |
| TREK Bicycle Corporation | 39-1237359 | Waterloo | 6 | 10,192 | $392.7M |
EINs are drawn from the Form 5500 the employer filed with the U.S. Department of Labor. An employer’s EIN is the same across all of its plans — open a filing to confirm the sponsor name and address before relying on it.
How to find an employer’s EIN in Wisconsin
Every employer that sponsors a retirement or health plan files a Form 5500 that lists its nine-digit Employer Identification Number. Find a Wisconsin company in the table above, or run a Form 5500 search by company name to pull the filing and read the EIN directly from it.
For a broader view of plans in the state — including industry breakdowns and the largest plans by assets — see Form 5500 plans in Wisconsin. New to these filings? Start with What is Form 5500?
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