| IFIndustries for the Blind and Visually Impaired. Inc. - Janesville | Janesville, WI | Miscellaneous Manufacturing339940 | 20–99 | ◐ LIKELY ACTIVE |
| ILIPMF, LLC., d/b/a Naturpak | Janesville, WI | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| ILIPMF, LLC., dba Naturpak | Janesville, WI | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| JCJanesville - CMC | Janesville, WI | Nonmetallic Mineral Product Manufacturing327331 | 20–99 | ◐ LIKELY ACTIVE |
| JSJNB Signs, Inc. | Janesville, WI | Miscellaneous Manufacturing339950 | 20–99 | ◐ LIKELY ACTIVE |
| KIKandu Industries Inc | Milton, WI | — | — | ◐ LIKELY ACTIVE |
| MRMidwest Rescue Tools LLC | Milton, WI | Machinery Manufacturing333515 | — | ◐ LIKELY ACTIVE |
| MMMonterey Mills | Janesville, WI | Textile Mills313240 | 20–99 | ◐ LIKELY ACTIVE |
| MWMurray Warehousing, Inc. | Beloit, WI | — | — | ◐ LIKELY ACTIVE |
| NENorthland Equipment | Janesville, WI | Transportation Equipment Manufacturing336211 | 20–99 | ◐ LIKELY ACTIVE |
| OCOttfrey Cellars | Janesville, WI | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| PDPanoramic Distribution Center | Janesville, WI | Plastics and Rubber Products Manufacturing326199 | 1–19 | ◐ LIKELY ACTIVE |
| RRathGibson | Janesville, WI | Primary Metal Manufacturing331210 | 100–499 | ◐ LIKELY ACTIVE |
| RRinehart | Janesville, WI | Miscellaneous Manufacturing339920 | 20–99 | ◐ LIKELY ACTIVE |
| RDRubber Ducky Winery & Country Market | Milton, WI | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| STSSI Technologies, LLC - Plainfield | Janesville, WI | Electrical Equipment, Appliance & Component Manufacturing335314 | 20–99 | ◐ LIKELY ACTIVE |
| SStateline | Beloit, WI | Machinery Manufacturing333611 | 100–499 | ◐ LIKELY ACTIVE |
| THTimber Hill Winery, LLC | Milton, WI | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| UUS-Beloit | Beloit, WI | Food Manufacturing311919 | 100–499 | ◐ LIKELY ACTIVE |
| VIValmet Inc. | Beloit, WI | Machinery Manufacturing333243 | 100–499 | ◐ LIKELY ACTIVE |
| WPWaterloo Poultry Processing LLC | Clinton, WI | Food Manufacturing311615 | — | ◐ LIKELY ACTIVE |
| WPWestlake Pipe & Fittings | Janesville, WI | Plastics and Rubber Products Manufacturing326122 | 20–99 | ◐ LIKELY ACTIVE |
| PSPrecision Screw Products., INC. of Janesville | Janesville, WI | Fabricated Metal Product Manufacturing332721 | — | ◇ UNVERIFIED |
| SCSiny CORP. | Janesville, WI | Textile Mills313241 | — | ◇ UNVERIFIED |
| ACAbitec Corporation | Janesville, WI | Food Manufacturing311225 | — | ◇ UNVERIFIED |
Accurate Machine Products Incorporated | Janesville, WI | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| AMAkey Manufacturing Company, INC. | Footville, WI | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| ABAmerican Builders & Contractors Supply Co., INC. | Beloit, WI | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| BPBadger Printing & Converting INC | Janesville, WI | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| BIBauer, INC. Dba Bauer Sign Company | Beloit, WI | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| BBBeloit Box Board Company INC | Beloit, WI | Paper Manufacturing322130 | — | ◇ UNVERIFIED |
| BCBio-systems CORP | Beloit, WI | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| BDBlack & Decker | Beloit, WI | Fabricated Metal Product Manufacturing332216 | — | ◇ UNVERIFIED |
| BCBlackhawk Cutting Services, Inc. | Beloit, WI | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| BMBrowntown Mill, INC. | Milton, WI | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| BCBurlington Consumer Coop - Clinton - Feed Mill | Clinton, WI | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| CHCannonball Hnp, LLC | Beloit, WI | Fabricated Metal Product Manufacturing332510 | — | ◇ UNVERIFIED |
| CICargill, Incorporated | Milton, WI | Food Manufacturing311119 | — | ◇ UNVERIFIED |
| CFChicago Fittings Corporation | Beloit, WI | Fabricated Metal Product Manufacturing332912 | — | ◇ UNVERIFIED |
| CCComponex Corporation | Edgerton, WI | Fabricated Metal Product Manufacturing332721 | — | ◇ UNVERIFIED |
| CLCotta, LLC | Beloit, WI | Machinery Manufacturing333612 | — | ◇ UNVERIFIED |
| CMCounty Materials | Janesville, WI | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| CTCustomized Transportation INC | Edgerton, WI | Transportation Equipment Manufacturing336211 | — | ◇ UNVERIFIED |
Diamond Foods, INC. | Beloit, WI | Food Manufacturing311919 | — | ◇ UNVERIFIED |
| DMD.m. Manufacturing, INC. | Beloit, WI | Fabricated Metal Product Manufacturing332313 | — | ◇ UNVERIFIED |
| DMDoneright Metal Works | Beloit, WI | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| ECErikas Clean Queen Inc | Orfordville, WI | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| ECEvonik CORP | Janesville, WI | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| FIFab-masters, INC. | Janesville, WI | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| FLFgs-wi LLC D/b/a Freedom Graphic Systems | Milton, WI | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |