| LDLowery Dental Laboratory, INC. | Madison | NC | Miscellaneous Manufacturing339116 | — | ◇ UNVERIFIED |
| LILycon INC | Madison | WI | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MCMadison Chocolate Company LLC | Madison | WI | Food Manufacturing311352 | — | ◇ UNVERIFIED |
| MCMadison Crushing and Excavating Company INC | Madison | WI | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| MFMadison Floor CO. INC. | Madison | VA | Wood Product Manufacturing321918 | — | ◇ UNVERIFIED |
| MMMadison Marble Works, LLC | Madison | FL | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| MMMadison Materials, LLC | Madison | WI | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| MPMadison Packing | Madison | FL | Food Manufacturing311611 | — | ◇ UNVERIFIED |
| MAMarkuly Auto Electric | Madison | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MEMdm Enterprises LLC | Madison | WI | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| MDMetal Design Corporation | Madison | WI | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| MMMetal Moulding Corporation | Madison | TN | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| MSMichael Sabados Dba US Storage Group, LLC | Madison | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MIMidamerco, INC. | Madison | WI | Machinery Manufacturing333912 | — | ◇ UNVERIFIED |
| MRMidwest Racking Manufacturing, INC. | Madison | IL | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| MBMirus Bio LLC | Madison | WI | Chemical Manufacturing325414 | — | ◇ UNVERIFIED |
| MGMNY Group, LLC | Madison | SD | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| MPModern Plastics Design | Madison | WI | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| MFMorningstar Foods INC | Madison | WI | Food Manufacturing311510 | — | ◇ UNVERIFIED |
| MBMusee Bath | Madison | MS | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| MCMusic City Fit Meals, LLC | Madison | TN | Food Manufacturing311991 | — | ◇ UNVERIFIED |
| MCMusic City Fit Meals, LLC | Madison | TN | Food Manufacturing311991 | — | ◇ UNVERIFIED |
| NLNessAlla LLC | Madison | WI | Food Manufacturing311920 | — | ◇ UNVERIFIED |
| NLNessAlla LLC | Madison | WI | Food Manufacturing311920 | — | ◇ UNVERIFIED |
| NMNew Madison Brewing Company LLC | Madison | IN | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| NPNewsletter Press INC. | Madison | WI | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| NUNobbits USA LLC | Madison | WI | Apparel Manufacturing315990 | — | ◇ UNVERIFIED |
| NGNorthrop Grumman--epic One Aviation Way | Madison | AL | Computer and Electronic Product Manufacturing334511 | — | ◇ UNVERIFIED |
| NMNorthstar Medical Radioisotopes, LLC. | Madison | WI | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| NGNucor Grating - Fisher & Ludlow INC. | Madison | MS | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| NTNucor Tubular Products | Madison | IN | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| OHOmco - Huntsville | Madison | AL | Fabricated Metal Product Manufacturing332114 | — | ◇ UNVERIFIED |
| PCPackaging Corporation of America | Madison | AL | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| PMPearlsnap Machine Works, LLC | Madison | WI | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| PAPgw Auto Glass, LLC | Madison | WI | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| PAPirelli Armstrong Tire CORP (closed) | Madison | TN | Plastics and Rubber Products Manufacturing326211 | — | ◇ UNVERIFIED |
| PSPLI Sorting LLC | Madison | OH | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| PWPratt & Whitney Automation | Madison | AL | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| PKPromega - Kornberg Center | Madison | WI | Chemical Manufacturing325413 | — | ◇ UNVERIFIED |
| QBQuince Berry Properties LLC | Madison | WI | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| RPResearch Products Corporation | Madison | WI | Machinery Manufacturing333413 | — | ◇ UNVERIFIED |
| ROResolute of Tennessee INC | Madison | TN | Nonmetallic Mineral Product Manufacturing327993 | — | ◇ UNVERIFIED |
| RBRight Bauer, LLC | Madison | WI | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| RDRising Dough, Inc. | Madison | WI | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| RCRiver City Printing, LLC | Madison | IN | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| RGRogers Group, INC. - Madison Closed | Madison | TN | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| RLRWP, Limited Liability Company | Madison | CT | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| SISafc INC | Madison | WI | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| SBSawyer B LLC | Madison | WI | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| SISchoep's Ice Cream Co., INC. | Madison | WI | Food Manufacturing311520 | — | ◇ UNVERIFIED |
