| M6MilliporeSigma 636 | Madison | WI | Chemical Manufacturing325411 | 20-99 | ◐ LIKELY ACTIVE |
| M6MilliporeSigma 645 | Madison | WI | Chemical Manufacturing325411 | 100-499 | ◐ LIKELY ACTIVE |
| MNM N T Machine, Inc., a Close Corporation | Madison | AL | Fabricated Metal Product Manufacturing332510 | — | ◐ LIKELY ACTIVE |
| MIMotibera, INC. | Madison | WI | Electrical Equipment, Appliance & Component Manufacturing335312 | — | ◐ LIKELY ACTIVE |
| MSMTM Sanoh America | Madison | AL | Transportation Equipment Manufacturing336340 | 20-99 | ◐ LIKELY ACTIVE |
| NENeala Estate Vineyard | Madison | VA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| NBNothing Bundt Cakes - Madison | Madison | MS | Food Manufacturing311811 | 20-99 | ◐ LIKELY ACTIVE |
| NDNucor Data Systems | Madison | IN | Fabricated Metal Product Manufacturing332322 | 20-99 | ◐ LIKELY ACTIVE |
| OFOdilon Ford Winery | Madison | WI | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| OBOld Black Bear Brewing Company LLC | Madison | AL | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| OSOMCO Solar | Madison | AL | Fabricated Metal Product Manufacturing332119 | 20-99 | ◐ LIKELY ACTIVE |
Patrick Industries/Business Unit 725 MMC | Madison | TN | Fabricated Metal Product Manufacturing332919 | 20-99 | ◐ LIKELY ACTIVE |
| PPPenn Pak I - Madison | Madison | GA | Food Manufacturing311119 | 20-99 | ◐ LIKELY ACTIVE |
| PDPiedmont Distillers, INC. | Madison | NC | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| PCPlacon Corporation | Madison | WI | Plastics and Rubber Products Manufacturing326199 | 100-499 | ◐ LIKELY ACTIVE |
| PSPmg Sm Nc, LLC | Madison | NC | Petroleum and Coal Products Manufacturing324121 | 1-19 | ◐ LIKELY ACTIVE |
| PIPolaris Industries - Huntsville | Madison | AL | Transportation Equipment Manufacturing336999 | 500+ | ◐ LIKELY ACTIVE |
| PUPPD USA Inc | Madison | SD | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◐ LIKELY ACTIVE |
| PGPremier Global Production Company INC | Madison | TN | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| RRRemington Ridge Vineyard | Madison | MN | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| RPResearch Products, Madison Campus - AprilAire Plant, Tech Center | Madison | WI | Machinery Manufacturing333413 | 100-499 | ◐ LIKELY ACTIVE |
| RCRestoration Cider Works | Madison | WI | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| SWScc Wine Company, LLC | Madison | OH | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| SPSouthern Pride Services, INC. | Madison | AL | Furniture and Related Product Manufacturing337212 | — | ◐ 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 |
| TSTennessee Sheet Metal, Inc. | Madison | TN | Fabricated Metal Product Manufacturing332322 | 20-99 | ◐ 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 |
| URUnited Refrigeration, INC | Madison | WI | Machinery Manufacturing333415 | — | ◐ 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 |
| WFWisconsin Foam Company | Madison | WI | Plastics and Rubber Products Manufacturing326140 | 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 |