| MMMhc Machining Division - Glen | Glenwood | MN | — | ◇ UNVERIFIED |
| MLMhs LTD Dba Wear Flex Slings | Winston Salem | NC | — | ◇ UNVERIFIED |
| MRMichael Runk, Pamela Runk, Duane Runk Excavating | Broad Top | PA | — | ◇ UNVERIFIED |
| MWMichigan Wire Cloth LLC | Saint Johns | MI | — | ◇ UNVERIFIED |
 M.i.c. Industries, INC. | Winchester | VA | — | ◇ UNVERIFIED |
| MRMicrosoft Redmond 17760 Facility | Redmond | WA | — | ◇ UNVERIFIED |
| MAMid America Trenchers LLC | Dexter | IA | — | ◇ UNVERIFIED |
| MCMid Continent Nail CORP | Radford | VA | — | ◇ UNVERIFIED |
| MCMid Continent Steel & Wire, INC. | Poplar Bluff | MO | — | ◇ UNVERIFIED |
| MMMidlander Manufacturing Inc | Howell | MI | — | ◇ UNVERIFIED |
| MAMidwest Air Technologies, INC. | Port Wentworth | GA | — | ◇ UNVERIFIED |
| MCMidwest Control Products | Bushnell | IL | — | ◇ UNVERIFIED |
| MHMidwest Hanger CO | Kansas City | MO | — | ◇ UNVERIFIED |
| MHMidwest Hanger Company | Cameron | MO | — | ◇ UNVERIFIED |
| MWMid West Wire Products INC | Ferndale | MI | — | ◇ UNVERIFIED |
| MWMidwest Wire Products INC | Ferndale | MI | — | ◇ UNVERIFIED |
| MTMiller Trucking & Excavating | Carbon Cliff | IL | — | ◇ UNVERIFIED |
| MUMiller Urethane Prods INC | Moody | AL | — | ◇ UNVERIFIED |
| MMilspec | Sorrento | FL | — | ◇ UNVERIFIED |
| MMMineral Minds | Bartlett | IL | — | ◇ UNVERIFIED |
| MCM&M Cage Company, LLC | Milwaukee | WI | — | ◇ UNVERIFIED |
| MPMmi Products, INC. | Statesville | NC | — | ◇ UNVERIFIED |
| MCModern Crane Technologies | Montrose | MI | — | ◇ UNVERIFIED |
| MFModern Fence Company | Fort Smith | AR | — | ◇ UNVERIFIED |
| MCMontrose Cdt | Auburn | MA | — | ◇ UNVERIFIED |
| MEMorgan Engineering Systems INC. | Alliance | OH | — | ◇ UNVERIFIED |
| MMMorris Material Handling INC | Oak Creek | WI | — | ◇ UNVERIFIED |
| MMMorris Material Handling - Kone Cranes | Franklin | OH | — | ◇ UNVERIFIED |
| MMMorris Material Handling - Watertown | Watertown | WI | — | ◇ UNVERIFIED |
| MBMorrow Brothers Welding | Jacksonville | FL | — | ◇ UNVERIFIED |
| MWMountain West Crushing Plant | Natrona | WY | — | ◇ UNVERIFIED |
| MCMpp Company | Santa Ana | CA | — | ◇ UNVERIFIED |
| MCMrl Constructors of N.y., INC. | Niagara Falls | NY | — | ◇ UNVERIFIED |
| MCMt Clemens Crane & Service CO INC | Harrison Twp | MI | — | ◇ UNVERIFIED |
| MJMud Jack King | Kansas City | MO | — | ◇ UNVERIFIED |
| MAMuncy Acquisitions | Kansas City | MO | — | ◇ UNVERIFIED |
| MMMuncy Machine & Tool Co., Incorporated | Turbotville | PA | — | ◇ UNVERIFIED |
| MLMurray Lane Trust | Athol | MA | — | ◇ UNVERIFIED |
| NWNagel Wire | Rocky Ford | CO | — | ◇ UNVERIFIED |
| NAN Amer. Fastener | Bridgeport | WV | — | ◇ UNVERIFIED |
| NDNarragansett Dock Works INC. | Narragansett | RI | — | ◇ UNVERIFIED |
| NDNashville Display | Lebanon | TN | — | ◇ UNVERIFIED |
| NWNashville Wire Products | Springfield | TN | — | ◇ UNVERIFIED |
| NWNashville Wire Products | Mcewen | TN | — | ◇ UNVERIFIED |
| NWNashville Wire Products CO | Frankfort | KY | — | ◇ UNVERIFIED |
| NWNashville Wire Products Manufacturing Company | White Bluff | TN | — | ◇ UNVERIFIED |
| NWNashville Wire Products Manufacturing Company | Lebanon | TN | — | ◇ UNVERIFIED |
| NWNashville Wire Products Manufacturing Company, LLC | Mcewen | TN | — | ◇ UNVERIFIED |
| NCNational Crane CORP | Waverly | NE | — | ◇ UNVERIFIED |
| NINational Illiana | Gary | IN | — | ◇ UNVERIFIED |
