| CCCalwis CO INC | Green Bay | WI | Chemical Manufacturing325611 | 1-19 | ◐ LIKELY ACTIVE |
| CCCarfair Composites USA INC | Wausaukee | WI | Plastics and Rubber Products Manufacturing326121 | 20-99 | ◐ LIKELY ACTIVE |
| CICarlisle Interconnect Technologies | Franklin | WI | Computer and Electronic Product Manufacturing334419 | — | ◐ LIKELY ACTIVE |
| CCCarnes CO | Verona | WI | Machinery Manufacturing333410 | 20-99 | ◐ LIKELY ACTIVE |
| CLCellox LLC | Reedsburg | WI | Plastics and Rubber Products Manufacturing326120 | 20-99 | ◐ LIKELY ACTIVE |
| CSCentral Standard LLC | Milwaukee | WI | Beverage and Tobacco Product Manufacturing312140 | 1-19 | ◐ LIKELY ACTIVE |
| CGC. G. Bretting Manufacturing Co., INC. | Ashland | WI | Paper Manufacturing322299 | 100-499 | ◐ LIKELY ACTIVE |
| CRChanneled Resources Group | Marathon | WI | Paper Manufacturing322121 | 100-499 | ◐ LIKELY ACTIVE |
| C2Chapter 2 INC | Lake Mills | WI | Fabricated Metal Product Manufacturing332990 | 20-99 | ◐ LIKELY ACTIVE |
| CMChurch Metal Spinning CO | Milwaukee | WI | Fabricated Metal Product Manufacturing332119 | 20-99 | ◐ LIKELY ACTIVE |
| CICircle Incorporated | Burlington | WI | Paper Manufacturing322299 | 20-99 | ◐ LIKELY ACTIVE |
| CGClassic Gears and Machining | Kaukauna | WI | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| CSCleaning Systems INC | De Pere | WI | Chemical Manufacturing325611 | 20-99 | ◐ LIKELY ACTIVE |
| CCCmd CORP | Appleton | WI | Machinery Manufacturing333248 | 100-499 | ◐ LIKELY ACTIVE |
| CPCoating Place LLC | Verona | WI | Chemical Manufacturing325412 | 100-499 | ◐ LIKELY ACTIVE |
| CCColor Craft Graphic Arts INC | Manitowoc | WI | Paper Manufacturing322212 | 100-499 | ◐ LIKELY ACTIVE |
Contact Metals, Incorporated | Hartford | WI | Fabricated Metal Product Manufacturing332322 | 1-19 | ◐ LIKELY ACTIVE |
| CFCounter Form LLC | Marshfield | WI | Wood Product Manufacturing321000 | 20-99 | ◐ LIKELY ACTIVE |
| CFCreate-A-Pack food inc | Ixonia | WI | Food Manufacturing311999 | 100-499 | ◐ LIKELY ACTIVE |
| CACreative Automation INC | Abbotsford | WI | Machinery Manufacturing333210 | 20-99 | ◐ LIKELY ACTIVE |
| CPCrescent Printing CO INC | Onalaska | WI | Printing and Related Support Activities323110 | 20-99 | ◐ LIKELY ACTIVE |
| CBCriterion Barrels, Inc. | Germantown | WI | Fabricated Metal Product Manufacturing332721 | 20-99 | ◐ LIKELY ACTIVE |
| CFCrystal Finishing Systems INC - Mosinee | Mosinee | WI | Primary Metal Manufacturing331318 | 100-499 | ◐ LIKELY ACTIVE |
| CPCrystal Print INC | Little Chute | WI | Printing and Related Support Activities323110 | 1-19 | ◐ LIKELY ACTIVE |
| CHCti Hospitality INC | Algoma | WI | Furniture and Related Product Manufacturing337110 | 20-99 | ◐ LIKELY ACTIVE |
Curt Manufacturing, LLC | Eau Claire | WI | Transportation Equipment Manufacturing336390 | — | ◐ LIKELY ACTIVE |
| CPCustom Pak Products INC. | Germantown | WI | Chemical Manufacturing325510 | 20-99 | ◐ LIKELY ACTIVE |
| DCDeltrol Controls | Milwaukee | WI | Fabricated Metal Product Manufacturing332911 | 20-99 | ◐ LIKELY ACTIVE |
| DPDe Pere Foundry INC | De Pere | WI | Primary Metal Manufacturing331510 | 20-99 | ◐ LIKELY ACTIVE |
Dickmann INC | Grafton | WI | Fabricated Metal Product Manufacturing332322 | 20-99 | ◐ LIKELY ACTIVE |
| DLDi, LLC | Abbotsford | WI | Textile Mills313210 | 20-99 | ◐ LIKELY ACTIVE |
| DPDunn Paper - Ladysmith LLC | Ladysmith | WI | Paper Manufacturing322120 | 20-99 | ◐ LIKELY ACTIVE |
| DLDura-fibre LLC | Menasha | WI | Paper Manufacturing322211 | 20-99 | ◐ LIKELY ACTIVE |
| DPDutchland Plastics | Oostburg | WI | Plastics and Rubber Products Manufacturing326199 | 100-499 | ◐ LIKELY ACTIVE |
| DIDynex-rivett INC | Pewaukee | WI | Machinery Manufacturing333995 | 20-99 | ◐ LIKELY ACTIVE |
| EDEggers Division LLC - Neenah | Neenah | WI | Wood Product Manufacturing321910 | 100-499 | ◐ LIKELY ACTIVE |
| EMEk Machine CO INC | Fall River | WI | Fabricated Metal Product Manufacturing332000 | 20-99 | ◐ LIKELY ACTIVE |
| ECEllsworth Cooperative Creamery | Ellsworth | WI | Food Manufacturing311510 | 100-499 | ◐ LIKELY ACTIVE |
| ECEmco Chemical Distributors INC | Pleasant Prairie | WI | Chemical Manufacturing325211 | 500+ | ◐ LIKELY ACTIVE |
| EBEmpire Bucket INC | Hudson | WI | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| ELEncapsys LLC | Portage | WI | Chemical Manufacturing325990 | 20-99 | ◐ LIKELY ACTIVE |
| EHEndeavor Hardwoods Incorporated | Lyndon Station | WI | Wood Product Manufacturing321113 | 20-99 | ◐ LIKELY ACTIVE |
| EMEndres Manufacturing CO | Waunakee | WI | Fabricated Metal Product Manufacturing332310 | 100-499 | ◐ LIKELY ACTIVE |
| EREpic Resins | Palmyra | WI | Chemical Manufacturing325110 | 20-99 | ◐ LIKELY ACTIVE |
| EIEvm INC | Two Rivers | WI | Fabricated Metal Product Manufacturing332721 | 1-19 | ◐ LIKELY ACTIVE |
| EIExactech INC | Sturgeon Bay | WI | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| EIExacto INC | Sharon | WI | Chemical Manufacturing325314 | 20-99 | ◐ LIKELY ACTIVE |
| FRFall River Foundry CO | Fall River | WI | Primary Metal Manufacturing331520 | 100-499 | ◐ LIKELY ACTIVE |
| FTFederal Tool & Engineering | West Bend | WI | Fabricated Metal Product Manufacturing332119 | 20-99 | ◐ LIKELY ACTIVE |
| FIFeeco International INC | Green Bay | WI | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |