| RPResearch Products, Madison Campus - AprilAire Plant, Tech Center | Madison | WI | Machinery Manufacturing333413 | 100-499 | ◐ LIKELY ACTIVE |
| SWScc Wine Company, LLC | Madison | OH | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| SCStearman Consulting LLC | Madison | AL | Electrical Equipment, Appliance & Component Manufacturing335931 | — | ◐ LIKELY ACTIVE |
| SLSt. Louis Structures - CMC | Madison | IL | Nonmetallic Mineral Product Manufacturing327332 | 20-99 | ◐ LIKELY ACTIVE |
| SWStonegait Winery | Madison | OH | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| TPTekni Plex, Femrite Drive | Madison | WI | Plastics and Rubber Products Manufacturing326112 | 1-19 | ◐ LIKELY ACTIVE |
| TCThe Cider Farm | Madison | WI | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| TTThe Thomas Family Winery | Madison | IN | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| THThunder Hill Winery | Madison | OH | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| TSTibidabo Scientific Industries (usa), INC. | Madison | CT | Computer and Electronic Product Manufacturing334419 | — | ◐ LIKELY ACTIVE |
| TPTodds Premium foods - Madison NE | Madison | NE | Food Manufacturing311421 | 20-99 | ◐ LIKELY ACTIVE |
| THTriad Halal Meats LLC | Madison | NC | Food Manufacturing311611 | — | ◐ LIKELY ACTIVE |
| TTruss (Madison) | Madison | AL | Wood Product Manufacturing321214 | 20-99 | ◐ LIKELY ACTIVE |
| TMTwin Meadows Winery, LLC | Madison | MO | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| TFTyson Fresh Meats, Inc. | Madison | NE | Food Manufacturing311611 | — | ◐ LIKELY ACTIVE |
| UWUS278 WI Madison | Madison | WI | Miscellaneous Manufacturing339112 | 20-99 | ◐ LIKELY ACTIVE |
| VMViaflex - Madison | Madison | SD | Plastics and Rubber Products Manufacturing326113 | 20-99 | ◐ LIKELY ACTIVE |
| VPVita Plus Corporation | Madison | WI | Food Manufacturing311119 | 100-499 | ◐ LIKELY ACTIVE |
| VPVita Plus - Distribution Center | Madison | WI | Food Manufacturing311119 | 20-99 | ◐ LIKELY ACTIVE |
| WSWandering Sun Mead | Madison | NC | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| WCWestlake Compounds Madison, LLC | Madison | MS | Chemical Manufacturing325991 | 20-99 | ◐ LIKELY ACTIVE |
| WCWi107 Cameca Instruments, INC. | Madison | WI | Computer and Electronic Product Manufacturing334516 | 20-99 | ◐ LIKELY ACTIVE |
| YBYahara Bay Distillers, INC. | Madison | WI | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| YBYoung Blood Beer Company | Madison | WI | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| YKY-Tec Kelyex Toyotestu Alabama (YKTA) | Madison | AL | Transportation Equipment Manufacturing336370 | 500+ | ◐ LIKELY ACTIVE |
| URUnited Refrigeration, INC | Madison | WI | Machinery Manufacturing333415 | — | ◐ LIKELY ACTIVE |
| APAdame Pallets LLC | Madison | WI | Wood Product Manufacturing321920 | 1-19 | ◇ UNVERIFIED |
| AGArcadia GlassHouse LLC | Madison | OH | Fabricated Metal Product Manufacturing332311 | 1-19 | ◇ UNVERIFIED |
| DWDesign Wizards, LLC Dba Fastsigns Madison | Madison | WI | Printing and Related Support Activities323111 | 1-19 | ◇ UNVERIFIED |
| ESEnvirolet Services LLC | Madison | WI | Wood Product Manufacturing321920 | 1-19 | ◇ UNVERIFIED |
| FFFortune Favors, LLC | Madison | WI | Food Manufacturing311911 | 1-19 | ◇ UNVERIFIED |
| LNLeach & Napier, LLC | Madison | IN | Fabricated Metal Product Manufacturing332710 | 1-19 | ◇ UNVERIFIED |
| LSLiberated Specialty Foods, Inc. | Madison | AL | Food Manufacturing311812 | 20-99 | ◇ UNVERIFIED |
| LILs Industries INC | Madison | VA | Miscellaneous Manufacturing339999 | 1-19 | ◇ UNVERIFIED |
| MBM B Steel CO INC | Madison | IL | Fabricated Metal Product Manufacturing332618 | 1-19 | ◇ UNVERIFIED |
| MRMidwest Rock Tops, LLC | Madison | WI | Nonmetallic Mineral Product Manufacturing327991 | 1-19 | ◇ UNVERIFIED |
| OBOne Barrel Brewing Company, LLC | Madison | WI | Beverage and Tobacco Product Manufacturing312120 | 1-19 | ◇ UNVERIFIED |
| RWR.j. Wherry and Associates, INC. | Madison | TN | Furniture and Related Product Manufacturing337110 | 20-99 | ◇ UNVERIFIED |
| SOSlydog of South Dakota, Inc. | Madison | SD | Transportation Equipment Manufacturing336999 | 1-19 | ◇ UNVERIFIED |
| SPSprint Print INC | Madison | WI | Printing and Related Support Activities323114 | 1-19 | ◇ UNVERIFIED |
| SOStella's of Madison, Inc. | Madison | WI | Food Manufacturing311812 | 1-19 | ◇ UNVERIFIED |
| TITaylor Industries LLC | Madison | MS | Chemical Manufacturing325612 | 1-19 | ◇ UNVERIFIED |
| TCTobitt Custom Cabinetry INC | Madison | TN | Furniture and Related Product Manufacturing337212 | 1-19 | ◇ UNVERIFIED |
| TSTrillium Solid Surface, LLC | Madison | WI | Furniture and Related Product Manufacturing337110 | 1-19 | ◇ UNVERIFIED |
| 1S132565 - Southern Steel - Wire Incorporated | Madison | NC | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| AMAAM Manufacturing, LLC | Madison | WI | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| ABAbengoa Bioenergy of Illinois, LLC | Madison | IL | Chemical Manufacturing325193 | — | ◇ UNVERIFIED |
| ANAbg North America | Madison | IL | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| ACAdvance Concrete Form, Inc.. | Madison | WI | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| AAAdvantage Aero, INC. | Madison | WI | Primary Metal Manufacturing331313 | — | ◇ UNVERIFIED |