| CPCustom Plating Specialist | Brillion | WI | Fabricated Metal Product Manufacturing332813 | 1-19 | ◇ UNVERIFIED |
| CPCustom Print & Stitch, LLC | Cudahy | WI | Apparel Manufacturing315990 | 20-99 | ◇ UNVERIFIED |
 Custom Service Plastics, INC. | Lake Geneva | WI | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| CSCustom Steel INC | Schofield | WI | Fabricated Metal Product Manufacturing332312 | 20-99 | ◇ UNVERIFIED |
| DWDairyland Woodworks | Owen | WI | Furniture and Related Product Manufacturing337212 | 1-19 | ◇ UNVERIFIED |
| DDD & D Quality Trim Dies INC. | Kenosha | WI | Machinery Manufacturing333514 | 1-19 | ◇ UNVERIFIED |
 Dead Foot Arms LLC | Brooklyn | WI | Fabricated Metal Product Manufacturing332994 | — | ◇ UNVERIFIED |
| DRDeal Rite, INC. | Oak Creek | WI | Plastics and Rubber Products Manufacturing326199 | 1-19 | ◇ UNVERIFIED |
| DDDeath's Door Distillery, LLC | Middleton | WI | Beverage and Tobacco Product Manufacturing312140 | — | ◇ UNVERIFIED |
| DIDecker Industries, INC. | Chippewa Falls | WI | Fabricated Metal Product Manufacturing332710 | 1-19 | ◇ UNVERIFIED |
| DPDeGolier Printing, Inc | Sun Prairie | WI | Printing and Related Support Activities323111 | 1-19 | ◇ UNVERIFIED |
| DADemand and Precision Parts Company of Milwaukee, INC. | Butler | WI | Miscellaneous Manufacturing339920 | 20-99 | ◇ UNVERIFIED |
| DIDemco INC | Deforest | WI | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| DADesigner Advertising LLC | Colby | WI | Apparel Manufacturing315990 | 1-19 | ◇ UNVERIFIED |
| DFDesign Fabrication Machining LLC | Auburndale | WI | Fabricated Metal Product Manufacturing332710 | 1-19 | ◇ UNVERIFIED |
| DWDesign Wizards, LLC Dba Fastsigns Madison | Madison | WI | Printing and Related Support Activities323111 | 1-19 | ◇ UNVERIFIED |
| DSDesignz Screen Printing $ Embroidery | La Crosse | WI | Printing and Related Support Activities323113 | 1-19 | ◇ UNVERIFIED |
| DTDevor Tool & Die, Inc | Lake Mills | WI | Machinery Manufacturing333514 | 1-19 | ◇ UNVERIFIED |
| DTDiamond T Ag, LLC | Reedsburg | WI | Chemical Manufacturing325311 | 1-19 | ◇ UNVERIFIED |
| DPDiedrich Pet LLC | Milwaukee | WI | Food Manufacturing311119 | 1-19 | ◇ UNVERIFIED |
| DJDirty Jigs Tackle LLC | Shiocton | WI | Miscellaneous Manufacturing339920 | 1-19 | ◇ UNVERIFIED |
| DPDistillery Partners, LLC | Plover | WI | Beverage and Tobacco Product Manufacturing312140 | 1-19 | ◇ UNVERIFIED |
| DPDomtar Paper CO LLC | Rothschild | WI | Paper Manufacturing322120 | — | ◇ UNVERIFIED |
| DADoor Artisan Cheese Company LLC | Egg Harbor | WI | Food Manufacturing311513 | 1-19 | ◇ UNVERIFIED |
| DCDoral Corporation | Milwaukee | WI | Fabricated Metal Product Manufacturing332322 | 100-499 | ◇ UNVERIFIED |
| DBDriftless Brewing Company, LLC | Soldiers Grove | WI | Beverage and Tobacco Product Manufacturing312120 | 1-19 | ◇ UNVERIFIED |
| DIDura-Trel, Inc. | Sheboygan Falls | WI | Chemical Manufacturing325211 | 20-99 | ◇ UNVERIFIED |
| EBEagle Baking Company LLC | Eagle River | WI | Food Manufacturing311812 | 1-19 | ◇ UNVERIFIED |
| EMEagle Metal Finishing LLC | Milwaukee | WI | Fabricated Metal Product Manufacturing332813 | 20-99 | ◇ UNVERIFIED |
| EREarth Rider Brewing, LLC | Superior | WI | Beverage and Tobacco Product Manufacturing312120 | 1-19 | ◇ UNVERIFIED |
| EIEggers Imprints, LLC | Brown Deer | WI | Textile Mills313312 | — | ◇ UNVERIFIED |
| ESElegant Stone Products Inc | Viroqua | WI | Nonmetallic Mineral Product Manufacturing327991 | 1-19 | ◇ UNVERIFIED |
| ECElenco Carbide Tool Corporation | Plymouth | WI | Machinery Manufacturing333515 | 20-99 | ◇ UNVERIFIED |
| EWElipticon Wood Products INC | Little Chute | WI | Furniture and Related Product Manufacturing337212 | 20-99 | ◇ UNVERIFIED |
| ETElite Tool & Manufacturing, LLC | Jackson | WI | Machinery Manufacturing333318 | 1-19 | ◇ UNVERIFIED |
| EAElkcast Aluminum | Elkhorn | WI | Primary Metal Manufacturing331524 | 1-19 | ◇ UNVERIFIED |
| EEElkhorn Electropolish | Elkhorn | WI | Fabricated Metal Product Manufacturing332813 | 1-19 | ◇ UNVERIFIED |
| ELEncap LLC | Green Bay | WI | Chemical Manufacturing325314 | 1-19 | ◇ UNVERIFIED |
| ESEnvirolet Services LLC | Madison | WI | Wood Product Manufacturing321920 | 1-19 | ◇ UNVERIFIED |
| ELEpac LLC | Middleton | WI | Printing and Related Support Activities323111 | 20-99 | ◇ UNVERIFIED |
| ECEvolution Coatings LLC | Sparta | WI | Fabricated Metal Product Manufacturing332812 | 1-19 | ◇ UNVERIFIED |
| EPExcel Pattern Inc. | Bonduel | WI | Machinery Manufacturing333511 | 1-19 | ◇ UNVERIFIED |
| FIFab-masters, INC. | Janesville | WI | Fabricated Metal Product Manufacturing332322 | 1-19 | ◇ UNVERIFIED |
| FBF Barkow INC | Milwaukee | WI | Transportation Equipment Manufacturing336000 | 1-19 | ◇ UNVERIFIED |
| FMFeltz Manufacturing Company INC. | Stevens Point | WI | Wood Product Manufacturing321918 | 1-19 | ◇ UNVERIFIED |
| FFFestive Foods LLC | Waupaca | WI | Food Manufacturing311412 | 100-499 | ◇ UNVERIFIED |
| FAFiberglass Animals Shapes and Trademarks, CORP. | Sparta | WI | Chemical Manufacturing325199 | 1-19 | ◇ UNVERIFIED |
| FIFischer Industries, INC. | Mequon | WI | Fabricated Metal Product Manufacturing332322 | 1-19 | ◇ UNVERIFIED |
| FLFitbench, LLC | Oconomowoc | WI | Miscellaneous Manufacturing339920 | 1-19 | ◇ UNVERIFIED |
| FHFleet Holding LLC | Hartland | WI | Transportation Equipment Manufacturing336413 | 20-99 | ◇ UNVERIFIED |
