| BBBurton Blvd | De Forest, WI | Fabricated Metal Product Manufacturing332322 | 20–99 | ◐ LIKELY ACTIVE |
| CWC2 Wisconsin Madison Femrite Drive | Madison, WI | Nonmetallic Mineral Product Manufacturing327991 | 1–19 | ◐ LIKELY ACTIVE |
| CDCampo Di Bella LLC | Mount Horeb, WI | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| CFCapital Finishing, Belleville | Belleville, WI | Wood Product Manufacturing321918 | 1–19 | ◐ LIKELY ACTIVE |
| CSCentral Storage & Warehouse Co | Madison, WI | — | — | ◐ LIKELY ACTIVE |
| CLCheese Louise | Monroe, WI | Food Manufacturing311511 | 20–99 | ◐ LIKELY ACTIVE |
| CHChr Hansen - Madison | Windsor, WI | Chemical Manufacturing325412 | 20–99 | ◐ LIKELY ACTIVE |
| CHCider House of Wisconsin | Mcfarland, WI | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| CPCoating Place, Inc. - Verona | Verona, WI | Chemical Manufacturing325412 | 100–499 | ◐ LIKELY ACTIVE |
| CSColorcon Stoughton | Stoughton, WI | Chemical Manufacturing325412 | 20–99 | ◐ LIKELY ACTIVE |
| C9Company 91 LLC | Madison, WI | Computer and Electronic Product Manufacturing334519 | — | ◐ LIKELY ACTIVE |
| CCorporate | Madison, WI | Food Manufacturing311340 | 100–499 | ◐ LIKELY ACTIVE |
| CCCrest Concrete Products, Inc | Barneveld, WI | Nonmetallic Mineral Product Manufacturing327390 | 1–19 | ◐ LIKELY ACTIVE |
| CECummins Emission Solutions Stoughton | Stoughton, WI | Machinery Manufacturing333618 | 100–499 | ◐ LIKELY ACTIVE |
| DUDairyfood USA, Inc. | Blue Mounds, WI | Food Manufacturing311513 | 100–499 | ◐ LIKELY ACTIVE |
| DMDanisco Madison | Madison, WI | Food Manufacturing311999 | 100–499 | ◐ LIKELY ACTIVE |
| DDeerfield | Deerfield, WI | Chemical Manufacturing325314 | 1–19 | ◐ LIKELY ACTIVE |
| DDeForest | De Forest, WI | Plastics and Rubber Products Manufacturing326150 | 20–99 | ◐ LIKELY ACTIVE |
| DEDon Evans, INC. | De Forest, WI | Plastics and Rubber Products Manufacturing326199 | — | ◐ LIKELY ACTIVE |
| DRDrumlin Ridge Winery LLC | Waunakee, WI | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| DLDynaVap, LLC Manufacturing | De Forest, WI | Miscellaneous Manufacturing339999 | 1–19 | ◐ LIKELY ACTIVE |
| EFEastland Feed & Grain Inc. AKA Honey Creek Feed Mill | Monroe, WI | Food Manufacturing311119 | 1–19 | ◐ LIKELY ACTIVE |
| EIEconoprint, Inc | Verona, WI | Printing and Related Support Activities323111 | 20–99 | ◐ LIKELY ACTIVE |
| EMEK Machine_Plant 4 | Madison, WI | Fabricated Metal Product Manufacturing332999 | 1–19 | ◐ LIKELY ACTIVE |
| EREmmir Roth USA Monroe Plant | Monroe, WI | Food Manufacturing311513 | 20–99 | ◐ LIKELY ACTIVE |
| EAEnvigo an Inotiv Company (304) | Madison, WI | Food Manufacturing311119 | 20–99 | ◐ LIKELY ACTIVE |
| EDEquipment Depot Wisconsin, Inc. - Sun Prairie | Sun Prairie, WI | Machinery Manufacturing333924 | 1–19 | ◐ LIKELY ACTIVE |
| EETC (Middleton) | Middleton, WI | Electrical Equipment, Appliance & Component Manufacturing335129 | 500+ | ◐ LIKELY ACTIVE |
| EFEugster's Farm Market | Stoughton, WI | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| EPEVCO Plastics - MED&HQ | De Forest, WI | Plastics and Rubber Products Manufacturing326199 | 100–499 | ◐ LIKELY ACTIVE |
| EEExtreme Engineering Solution | Verona, WI | Computer and Electronic Product Manufacturing334418 | 100–499 | ◐ LIKELY ACTIVE |
| FRFall River Foundry - Dept.93 | Fall River, WI | Fabricated Metal Product Manufacturing332710 | 20–99 | ◐ LIKELY ACTIVE |
| FCFood Concepts Inc | Middleton, WI | Miscellaneous Manufacturing339950 | 20–99 | ◐ LIKELY ACTIVE |
| FFForemost Farms USA Cooperative | Middleton, WI | Food Manufacturing311513 | — | ◐ LIKELY ACTIVE |
| FWFortune Wisconsin | Deforest, WI | — | — | ◐ LIKELY ACTIVE |
| FWFortune Wisconsin LLC | Windsor, WI | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| FWFranklin Water Treatment - Waunakee | Waunakee, WI | Machinery Manufacturing333310 | 20–99 | ◐ LIKELY ACTIVE |
| FHFUJIFILM Holdings Corporation, Madison WI | Madison, WI | Computer and Electronic Product Manufacturing334118 | 100–499 | ◐ LIKELY ACTIVE |
| FCFurst-McNess Company (Lodi) | Lodi, WI | Food Manufacturing311119 | 20–99 | ◐ LIKELY ACTIVE |
| FPFXI - Portage | Portage, WI | Plastics and Rubber Products Manufacturing326150 | 20–99 | ◐ LIKELY ACTIVE |
| GMGEHC Madison WI HCS | Madison, WI | Miscellaneous Manufacturing339112 | 500+ | ◐ LIKELY ACTIVE |
| GMGE Medical Systems Ultrasound & Primary Care Diagnostics LLC | Madison, WI | — | — | ◐ LIKELY ACTIVE |
| GPGlacier Point LLC | Linden, WI | Food Manufacturing311513 | 1–19 | ◐ LIKELY ACTIVE |
| GPGlobal Prosthetics INC | Madison, WI | Miscellaneous Manufacturing339115 | — | ◐ LIKELY ACTIVE |
| GAGood Aerospace LLC | Madison, WI | Transportation Equipment Manufacturing336411 | — | ◐ LIKELY ACTIVE |
| GWGrande Wyocena | Wyocena, WI | Food Manufacturing311513 | 100–499 | ◐ LIKELY ACTIVE |
| GWGrede Wisconsin Subsidiaries LLC Browntown | Browntown, WI | Primary Metal Manufacturing331511 | 100–499 | ◐ LIKELY ACTIVE |
| GIGreenco Industries, Inc. | Monroe, WI | — | — | ◐ LIKELY ACTIVE |
| HHangar | Madison, WI | Food Manufacturing311340 | 1–19 | ◐ LIKELY ACTIVE |
| HMHawks Mill Winehaus | New Glarus, WI | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |