| GPGlobal Prosthetics INC | Madison | WI | Miscellaneous Manufacturing339115 | — | ◐ LIKELY ACTIVE |
| GAGood Aerospace LLC | Madison | WI | Transportation Equipment Manufacturing336411 | — | ◐ LIKELY ACTIVE |
| GRGrand River Cellars | Madison | OH | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| GDGuajana Distillery | Madison | AL | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| HFHalsey Food Service | Madison | AL | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| HHangar | Madison | WI | Food Manufacturing311340 | 1-19 | ◐ LIKELY ACTIVE |
| IPIdeal Pase, A Massman Company | Madison | WI | Machinery Manufacturing333993 | 20-99 | ◐ LIKELY ACTIVE |
| IFImaginary Factory | Madison | WI | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| JCJust Coffee Cooperative | Madison | WI | Food Manufacturing311920 | 20-99 | ◐ LIKELY ACTIVE |
| KWKal'ava Winery | Madison | OH | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| KFK Farm | Madison | VA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
La Crosse Sign Co. Inc. - Madison | Madison | WI | Miscellaneous Manufacturing339950 | 1-19 | ◐ LIKELY ACTIVE |
| LSLapham-Hickey Steel Corp | Madison | IL | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| LLLuminex LMA | Madison | WI | Chemical Manufacturing325413 | 20-99 | ◐ LIKELY ACTIVE |
| MMadison | Madison | KS | Fabricated Metal Product Manufacturing332911 | 20-99 | ◐ LIKELY ACTIVE |
| MMadison | Madison | WI | Chemical Manufacturing325414 | 500+ | ◐ LIKELY ACTIVE |
| MMadison | Madison | OH | Paper Manufacturing322211 | 20-99 | ◐ LIKELY ACTIVE |
| MMadison | Madison | NC | Textile Mills313110 | 100-499 | ◐ LIKELY ACTIVE |
| MCMadison County Wines LLC | Madison | VA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| MDMadison Dry Ice Plant | Madison | MS | Chemical Manufacturing325120 | 1-19 | ◐ LIKELY ACTIVE |
| MEMadison Electrolyte Blending Facility | Madison | WI | Electrical Equipment, Appliance & Component Manufacturing335910 | 1-19 | ◐ LIKELY ACTIVE |
| MFMadison Facility | Madison | SD | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◐ LIKELY ACTIVE |
| MKMadison Kipp Corporation - North | Madison | WI | Primary Metal Manufacturing331523 | 20-99 | ◐ LIKELY ACTIVE |
| MKMadison Kipp Corporation South Plant/Corporate | Madison | WI | Primary Metal Manufacturing331523 | 20-99 | ◐ LIKELY ACTIVE |
| MMMadison Marine Construction and Recovery, LLC | Madison | MD | Transportation Equipment Manufacturing336612 | — | ◐ LIKELY ACTIVE |
| MWMadison, WI | Madison | WI | Computer and Electronic Product Manufacturing334418 | 1-19 | ◐ LIKELY ACTIVE |
| MLMad Local Food Group, LLC dba Pasture and Plenty | Madison | WI | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| MPMad Paddle Spirits | Madison | IN | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| MMMannington - Madison LVT | Madison | GA | Plastics and Rubber Products Manufacturing326199 | 100-499 | ◐ LIKELY ACTIVE |
| MSMeat Science and Animal Biologics Discovery | Madison | WI | Food Manufacturing311611 | — | ◐ LIKELY ACTIVE |
| MMMeese - Madison | Madison | IN | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◐ LIKELY ACTIVE |
| MEMehlin & Estey Companies and Affiliates, INC. | Madison | NJ | Apparel Manufacturing315210 | — | ◐ LIKELY ACTIVE |
| M6MilliporeSigma 601 | Madison | WI | Chemical Manufacturing325411 | 1-19 | ◐ LIKELY ACTIVE |
| M6MilliporeSigma 636 | Madison | WI | Chemical Manufacturing325411 | 20-99 | ◐ LIKELY ACTIVE |
| M6MilliporeSigma 645 | Madison | WI | Chemical Manufacturing325411 | 100-499 | ◐ 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 |
| 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 |
| 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 |