| MFManitowoc Foodservice Group (parsons) | Parsons | TN | — | ◇ UNVERIFIED |
| MHMann & Hummel USA INC. | South Bend | IN | — | ◇ UNVERIFIED |
| MMMann Made Products | Waterville | KS | — | ◇ UNVERIFIED |
| MEManufacturers Enameling CORP | Toledo | OH | — | ◇ UNVERIFIED |
| MTMapp Technologies, L.l.c. | Joplin | MO | — | ◇ UNVERIFIED |
| MIMarada Industries | Westminster | MD | — | ◇ UNVERIFIED |
| MPMara Polishing & Plating CO INC | Newark | NJ | — | ◇ UNVERIFIED |
| MJMarathon Jewelry | Attleboro | MA | — | ◇ UNVERIFIED |
| MBMar Bal INC | Cuba | MO | — | ◇ UNVERIFIED |
| MIMar-bal INC | Chagrin Falls | OH | — | ◇ UNVERIFIED |
| MIMar-bal INC. (0243112019) | Painesville | OH | — | ◇ UNVERIFIED |
| MPMar-bal Pultrusion, INC. | Willoughby | OH | — | ◇ UNVERIFIED |
| MCMarble Connection/cabinet Connection | Port Saint Lucie | FL | — | ◇ UNVERIFIED |
| MPMarble Palace | Stockton | CA | — | ◇ UNVERIFIED |
| MCMarch Coatings INC | Brighton | MI | — | ◇ UNVERIFIED |
| MCMarch Coatings Plant 2 | Brighton | MI | — | ◇ UNVERIFIED |
| MPMarch Performance INC | Naples | FL | — | ◇ UNVERIFIED |
| MEMarine Electrical Products | Lebanon | MO | — | ◇ UNVERIFIED |
| MPMarion Process Solutions | Marion | IA | — | ◇ UNVERIFIED |
| MIMarjan INC | Waterbury | CT | — | ◇ UNVERIFIED |
| MIMark I Molded Plastics of Tennessee | Henry | TN | — | ◇ UNVERIFIED |
| MEMarkovitz Ents INC Flowline Div | Whiteville | NC | — | ◇ UNVERIFIED |
| MRMark Richey Woodworking & Design INC | Newburyport | MA | — | ◇ UNVERIFIED |
| MVMark Vii Equipment Incorporated | Arvada | CO | — | ◇ UNVERIFIED |
| MPMarlette Plating | Buffalo | NY | — | ◇ UNVERIFIED |
| MIMarlock INC | Maynardville | TN | — | ◇ UNVERIFIED |
| MMMarmic Metal Treating | Saint Charles | MO | — | ◇ UNVERIFIED |
| MCMarox CORP | Holyoke | MA | — | ◇ UNVERIFIED |
| MTMarquette Tool & Die | Saint Louis | MO | — | ◇ UNVERIFIED |
| MDMarquis Dental Mfg CO INC | Aurora | CO | — | ◇ UNVERIFIED |
 Marsam Metal Finishing | New Britain | CT | — | ◇ UNVERIFIED |
| MCMars Company | Ocala | FL | — | ◇ UNVERIFIED |
| MSMarshalls Sandblasting and Painting | Willis | VA | — | ◇ UNVERIFIED |
| MPMarsh Plating CO | Buffalo | NY | — | ◇ UNVERIFIED |
| MCMar-tech CO. | Mount Juliet | TN | — | ◇ UNVERIFIED |
| MCMartin Container Service INC | Wilmington | CA | — | ◇ UNVERIFIED |
| MMMartin Marietta Composites INC Sparta Facility | Sparta | NC | — | ◇ UNVERIFIED |
| MMMartin Metal Specialties | Philadelphia | PA | — | ◇ UNVERIFIED |
| MSMartin Specialty Coatings LLC | Shreveport | LA | — | ◇ UNVERIFIED |
| MPMaryland Plastics | Federalsburg | MD | — | ◇ UNVERIFIED |
| MPMasbro Polishing Company | Pawtucket | RI | — | ◇ UNVERIFIED |
| MRMasco Retail Cabinet Group | Waverly | OH | — | ◇ UNVERIFIED |
| MCMasse Circuit CO | Methuen | MA | — | ◇ UNVERIFIED |
| MBMaster Blasters | Beaverdam | OH | — | ◇ UNVERIFIED |
| MMMastercraft Metal Finishing INC | Seattle | WA | — | ◇ UNVERIFIED |
| MPMastercraft Pattern and Model Works INC / Fiberglass Reinforced Plastic Mfg Faci | North Miami | OK | — | ◇ UNVERIFIED |
| MIMasterfab INC | Goshen | IN | — | ◇ UNVERIFIED |
| MMMaster Molded Products | Elgin | IL | — | ◇ UNVERIFIED |
| MPMaster Plating | San Diego | CA | — | ◇ UNVERIFIED |
| MCMasters Corporation | Lowell | MA | — | ◇ UNVERIFIED |
| MTMatco Tools | Lakewood | NY | — | ◇ UNVERIFIED |
| MMatech | Salisbury | MD | — | ◇ UNVERIFIED |
| MPMaterial Processing and Handling CO | Fostoria | OH | — | ◇ UNVERIFIED |
| MPMaterial Processing INC | Riverview | MI | — | ◇ UNVERIFIED |
| MTMaterials Technology INC | Somerset | NJ | — | ◇ UNVERIFIED |
| MBMaterion Brush INC | Fremont | CA | — | ◇ UNVERIFIED |
| MMMathy Machine INC | Santee | CA | — | ◇ UNVERIFIED |
| MIMatlab Incorporated Ramseur Facility | Ramseur | NC | — | ◇ UNVERIFIED |
| MIMatlab, INC. - Plants 1-4, 5, 7, 8 and 11 | Asheboro | NC | — | ◇ UNVERIFIED |
| MPMato Plastics INC. | Valencia | CA | — | ◇ UNVERIFIED |
 Matrix Machine and Repair INC. | Jacksonville | FL | — | ◇ UNVERIFIED |
| MPMatthews Plating INC | Jackson | MI | — | ◇ UNVERIFIED |
| MCMauell Corporation-utility Room | Dillsburg | PA | — | ◇ UNVERIFIED |
| MPMauser Packaging Solutions | Charlotte | NC | — | ◇ UNVERIFIED |
| MPMaverick Powder Coat & Sandblast | Anaheim | CA | — | ◇ UNVERIFIED |
| MMMaxcor Manufacturing INC | Colorado Springs | CO | — | ◇ UNVERIFIED |
| MMMayfair Molded Products CORP | Schiller Park | IL | — | ◇ UNVERIFIED |
| MEMayville Engineering Company | Wytheville | VA | — | ◇ UNVERIFIED |
| MVMay-wilbert Vault-pt Huron | Port Huron | MI | — | ◇ UNVERIFIED |
| MBMccann Barrel | Milwaukee | WI | — | ◇ UNVERIFIED |
| MPMcclarin Plastics LLC | Hanover | PA | — | ◇ UNVERIFIED |
| MMMccormick & Mccormick Investments, LLC | Little Rock | AR | — | ◇ UNVERIFIED |
| MIMccullough Industries | Kenton | OH | — | ◇ UNVERIFIED |
| MMMcdonald Mfg INC | Artesia | CA | — | ◇ UNVERIFIED |
| MAMcelroy and Wilken | Kalispell | MT | — | ◇ UNVERIFIED |
| MAMcgill Air Flow LLC | Bennington | VT | — | ◇ UNVERIFIED |
| MDMcgill Development Corporation | Westerville | OH | — | ◇ UNVERIFIED |
| MIMcgill INC | Marengo | IL | — | ◇ UNVERIFIED |
| MCMcjunkin CORP | Princeton | WV | — | ◇ UNVERIFIED |
| MMMckinstry Metal Works INC. | Chicopee | MA | — | ◇ UNVERIFIED |
| MPMcmaster Plating | Longview | TX | — | ◇ UNVERIFIED |
| MMMcmillan Mechanical & Machine Co., INC. | Shreveport | LA | — | ◇ UNVERIFIED |
| MTMcneilus Truck & Mfg INC | Villa Rica | GA | — | ◇ UNVERIFIED |
| MEMcstowe Engineering | East Bridgewater | MA | — | ◇ UNVERIFIED |
| MDMd Designs Inc-metal Decor | Springfield | IL | — | ◇ UNVERIFIED |
| MMM&d Metal Finishing Specialties INC - Blaine | Blaine | MN | — | ◇ UNVERIFIED |
| MSMd Stainless Services INC | Downey | CA | — | ◇ UNVERIFIED |
| MFMeadville Forging CO | Cambridge Springs | PA | — | ◇ UNVERIFIED |
| MCMeadwestvaco Calmar INC. | Winfield | KS | — | ◇ UNVERIFIED |
| MTMeca & Technology Machine INC | Green Bay | WI | — | ◇ UNVERIFIED |
 Medegen Medical Products, LLC | Northglenn | CO | — | ◇ UNVERIFIED |
| MPMedford Plating INC | Medford | OR | — | ◇ UNVERIFIED |
| MIMedicote, INC. | Bristol | RI | — | ◇ UNVERIFIED |
| MBMedina Blanking INC. | Valley City | OH | — | ◇ UNVERIFIED |
| MPMedina Plating CORP Plant 2 | Medina | OH | — | ◇ UNVERIFIED |
| MCMedin CORP | Totowa | NJ | — | ◇ UNVERIFIED |
| MIMedline INC. | Mundelein | IL | — | ◇ UNVERIFIED |
| MIMegamet Industries, INC. | Birmingham | AL | — | ◇ UNVERIFIED |
| MMMegawatt Machine Services | Somerset | NJ | — | ◇ UNVERIFIED |
| MBMel Bernie & CO INC | Burbank | CA | — | ◇ UNVERIFIED |
