| MAMaumee Assembly & Stamping | Maumee | OH | — | ◇ UNVERIFIED |
| MBMaura Buildings, Incorporated | Lebanon | PA | — | ◇ UNVERIFIED |
| MAMaurer and Shepherd, Joyners, INC. | Glastonbury | CT | — | ◇ UNVERIFIED |
| MMMaurice Mesple Dba Mesples Machine Shop and Pump | Fresno | CA | — | ◇ UNVERIFIED |
| MCMauser CORP | Nitro | WV | — | ◇ UNVERIFIED |
| MCMauser CORP | Addison | IL | — | ◇ UNVERIFIED |
| MUMauser USA LLC | Clarkston | MI | — | ◇ UNVERIFIED |
| MDMaverick Development, INC. | Cotter | AR | — | ◇ UNVERIFIED |
 Maverick Manufacturing LLC | Lakeville | MN | — | ◇ UNVERIFIED |
| MSMaverick Sheet Metal LLC | Conroe | TX | — | ◇ UNVERIFIED |
| MMMaxco Manufacturing LLC | Ona | WV | — | ◇ UNVERIFIED |
| MMMaxco Manufacturing LLC | Ona | WV | — | ◇ UNVERIFIED |
| MCMaxim Crane Works of Pennsylvania Limited Partners | Lexington | KY | — | ◇ UNVERIFIED |
| MLMaximus-3 LLC | Auburn Hills | MI | — | ◇ UNVERIFIED |
 Max Machining, LLC | Perkasie | PA | — | ◇ UNVERIFIED |
| MMMax Manufacturing INC | Bend | OR | — | ◇ UNVERIFIED |
| MPMaxon Plastics. Inc. | Batavia | IL | — | ◇ UNVERIFIED |
| MIMaxtin INC. | Farmers Branch | TX | — | ◇ UNVERIFIED |
| MMMaxwell Manufacturing, INC. | Maxwell | TX | — | ◇ UNVERIFIED |
| MEMaynard Esender Woodworks, INC. | Frankford | DE | — | ◇ UNVERIFIED |
| MEMayoni Enterprises | Pacoima | CA | — | ◇ UNVERIFIED |
| MSMay Specialty Fabricators, INC. | Register | GA | — | ◇ UNVERIFIED |
| MLMaysteel, LLC | Allenton | WI | — | ◇ UNVERIFIED |
| MPMaysteel Porters | Garland | TX | — | ◇ UNVERIFIED |
| MSMaysteel Star Precision | Longmont | CO | — | ◇ UNVERIFIED |
 Mayville Engineering Company INC Dba Mec | Vanderbilt | MI | — | ◇ UNVERIFIED |
| MCMazak CORP | Fremont | CA | — | ◇ UNVERIFIED |
| MMbci | Converse | TX | — | ◇ UNVERIFIED |
| MEMbm Enterprises, INC. | Pleasant Plains | AR | — | ◇ UNVERIFIED |
| MKMbm Kosher | Pacoima | CA | — | ◇ UNVERIFIED |
| MWMb Weld LLC | Waynesboro | VA | — | ◇ UNVERIFIED |
| MIMcad Inc., Dba Carolina Custom Surfaces | Greensboro | NC | — | ◇ UNVERIFIED |
| MWMcbrides Welding Dba American Iron | Ridgecrest | CA | — | ◇ UNVERIFIED |
| MMMccabe Metal Products INC | Salem | OR | — | ◇ UNVERIFIED |
| MIMccampbell INC | Destrehan | LA | — | ◇ UNVERIFIED |
| MWMccandless Waimalu Properties LLC | Honolulu | HI | — | ◇ UNVERIFIED |
| MFMcconnie Fence CO. | Tampa | FL | — | ◇ UNVERIFIED |
| MSMccorvey Sheet Metal Works LP | Murphy | NC | — | ◇ UNVERIFIED |
| MSMccorvey Sheet Metal Works, L.p. | Orlando | FL | — | ◇ UNVERIFIED |
| MSMccutchen Skywheels CORP | Broomfield | CO | — | ◇ UNVERIFIED |
| MTMcdonald Tank & Equipment | Great Bend | KS | — | ◇ UNVERIFIED |
| MMMcdonough Marine Service | Metairie | LA | — | ◇ UNVERIFIED |
| MEMCEL Enterprises LLC | Thorntown | IN | — | ◇ UNVERIFIED |
| MMMcelroy Metal Mill INC | Monroe | LA | — | ◇ UNVERIFIED |
| MMMcelroy Metal Mill, INC. | Peachtree City | GA | — | ◇ UNVERIFIED |
| MMMcelroy Metal Mill, INC. | Clinton | IL | — | ◇ UNVERIFIED |
| MMMcelroy Metal Mill, INC. | Alexandria | LA | — | ◇ UNVERIFIED |
| MMMcelroy Metal Mill, INC. | Merkel | TX | — | ◇ UNVERIFIED |
| MMMcelroy Metal Mill INC Dba Mcelroy Metal | Adelanto | CA | — | ◇ UNVERIFIED |
| MIMcfarlane, INC. | Grand Forks | ND | — | ◇ UNVERIFIED |
| MMMcfarlane Mfg CO | Sauk City | WI | — | ◇ UNVERIFIED |
| MAMcgill Airflow Corporation | Stockton | CA | — | ◇ UNVERIFIED |
| MPMcgregor Plant | Mc Gregor | TX | — | ◇ UNVERIFIED |
| MJMcguire Johns Holdings INC. | Elgin | IL | — | ◇ UNVERIFIED |
| MMMcintyre Manufacturing Group, INC. | Thomasville | NC | — | ◇ UNVERIFIED |
| MMMcintyre Metals | Thomasville | NC | — | ◇ UNVERIFIED |
| MVMckechnie Vehicle Components USA INC | Nicholasville | KY | — | ◇ UNVERIFIED |
| MHMckee Holdings LLC | Sandy | OR | — | ◇ UNVERIFIED |
| MMMckinzey Metal Works, INC. | Lake Charles | LA | — | ◇ UNVERIFIED |
| MWMcLaughlin Waste Equipment Inc. | Lockeford | CA | — | ◇ UNVERIFIED |
| MTMclendon Trailers, LLC | Phenix City | AL | — | ◇ UNVERIFIED |
| MTMclendon Trailers, LLC | Phenix City | AL | — | ◇ UNVERIFIED |
| MMMc Machining LLC | Ogden | UT | — | ◇ UNVERIFIED |
| MSMcManus Specialized Sheet Metal Works, Inc. | Milton | NY | — | ◇ UNVERIFIED |
| MCMcm Composites, LLC | Manitowoc | WI | — | ◇ UNVERIFIED |
| MCMcm Corporation of Oneida | Oneida | TN | — | ◇ UNVERIFIED |
| MFMcm Fabricators, INC. Dba Global Fabricators | Shafter | CA | — | ◇ UNVERIFIED |
| MFMcm Fixture Company, INC Dba Mcm Stainless Fabricating INC | Hazel Park | MI | — | ◇ UNVERIFIED |
| MCMcnichols Company | Garland | TX | — | ◇ UNVERIFIED |
| MPMcNic Properties LLC | Middleton | ID | — | ◇ UNVERIFIED |
| MIMcpherson Implement, Incorporated | Norman | OK | — | ◇ UNVERIFIED |
| MIMcReynolds Investments LLC | Waterford | WI | — | ◇ UNVERIFIED |
| MIMct Industries - Bernalillo Plant | Bernalillo | NM | — | ◇ UNVERIFIED |
| MSMct Sheet Metal | Beaumont | TX | — | ◇ UNVERIFIED |
| MSMct Sheetmetal, INC. | Lafayette | LA | — | ◇ UNVERIFIED |
| MHMddh Holdings, LLC | Phoenix | AZ | — | ◇ UNVERIFIED |
| MCMDI Corporation | Cheney | KS | — | ◇ UNVERIFIED |
| MCMDI Corporation | Cheney | KS | — | ◇ UNVERIFIED |
| MGMdi Government Services | Hibbing | MN | — | ◇ UNVERIFIED |
| MOMdi of Wisconsin | Oshkosh | WI | — | ◇ UNVERIFIED |
| MMMd Machine INC | Rogers | MN | — | ◇ UNVERIFIED |
| MPMdm Products, LLC | Milford | CT | — | ◇ UNVERIFIED |
| MIMdr International INC. | North Miami | FL | — | ◇ UNVERIFIED |
| MMMDS Manufacturing, LLC | Pacific | MO | — | ◇ UNVERIFIED |
| MMMeade Metals, Inc. | Elizabethtown | KY | — | ◇ UNVERIFIED |
 Meadow-burke Products | Hazleton | PA | — | ◇ UNVERIFIED |
| MCMeadowcraft Casual Furniture INC | Wadley | AL | — | ◇ UNVERIFIED |
| MIMeadowcraft, INC. | Center Point | AL | — | ◇ UNVERIFIED |
| MAMechanical and Industrial Steel Services, INC. | Channahon | IL | — | ◇ UNVERIFIED |
| MOMech One, INC. | San Diego | CA | — | ◇ UNVERIFIED |
| MIMec INC. | Byron Center | MI | — | ◇ UNVERIFIED |
| MIMec INC. | Wayland | MI | — | ◇ UNVERIFIED |
| MIMec INC. | Atkins | VA | — | ◇ UNVERIFIED |
| MMMedalist Mfg. INC. | Pella | IA | — | ◇ UNVERIFIED |
| MIMedax International INC. | Salt Lake City | UT | — | ◇ UNVERIFIED |
| MCMedea Corporation | Ormond Beach | FL | — | ◇ UNVERIFIED |
| MBMedia Blast & Abrasives INC | Brea | CA | — | ◇ UNVERIFIED |
| MWMedical Waste Envir Engrs INC | Santa Maria | CA | — | ◇ UNVERIFIED |
| MMMedieval Metalwerx, LLC | Mayer | MN | — | ◇ UNVERIFIED |
| MCMediland Corporation | Paramount | CA | — | ◇ UNVERIFIED |
