| MIMbw INC. | Slinger | WI | — | ◇ UNVERIFIED |
| MMMcadams & Mcadams, INC. D/b/a M & M Welding | Archdale | NC | — | ◇ UNVERIFIED |
| MMMcadoo Machine Company | Kelayres | PA | — | ◇ UNVERIFIED |
| MMMcallen Motor Mart Machine Shop | Mcallen | TX | — | ◇ UNVERIFIED |
| MPMcarthur Park, INC. Dba the Bleacherman | Corinth | NY | — | ◇ UNVERIFIED |
| MEMcB Enviro Corporation | Indianapolis | IN | — | ◇ UNVERIFIED |
| MRMcbride's Research & Machine, INC. | Sparks | NV | — | ◇ UNVERIFIED |
| MWMcbrides Welding Dba American Iron | Ridgecrest | CA | — | ◇ UNVERIFIED |
| MMMccabe Metal Products INC | Salem | OR | — | ◇ UNVERIFIED |
| MIMccampbell INC | Destrehan | LA | — | ◇ UNVERIFIED |
| MIMcclister INC | Tualatin | OR | — | ◇ UNVERIFIED |
| MFMcconnie Fence CO. | Tampa | FL | — | ◇ UNVERIFIED |
| MSMccorvey Sheet Metal Works LP | Murphy | NC | — | ◇ UNVERIFIED |
| MSMccorvey Sheet Metal Works, L.p. | Orlando | FL | — | ◇ UNVERIFIED |
| MPMcdaniel Products, INC. | Mansfield | OH | — | ◇ UNVERIFIED |
| MDMC Developers, LLC | Brodhead | WI | — | ◇ UNVERIFIED |
| MHMC&D Holdings, LLC | Addison | IL | — | ◇ UNVERIFIED |
| MCMcdonough Construction Rentals INC | Tampa | FL | — | ◇ UNVERIFIED |
| MMMcdonough Marine Service | Metairie | LA | — | ◇ UNVERIFIED |
| MEMCEL Enterprises LLC | Thorntown | IN | — | ◇ UNVERIFIED |
| MPMcElheny Precision Machining | Pavilion | NY | — | ◇ UNVERIFIED |
| MMMcelroy Metal Mill INC | Monroe | LA | — | ◇ UNVERIFIED |
| MMMcelroy Metal Mill, INC. | Merkel | TX | — | ◇ UNVERIFIED |
| MMMcelroy Metal Mill, INC. | Peachtree City | GA | — | ◇ UNVERIFIED |
| MMMcelroy Metal Mill INC Dba Mcelroy Metal | Adelanto | CA | — | ◇ UNVERIFIED |
| MLMcewen Lighting Studio | Berkeley | CA | — | ◇ UNVERIFIED |
| MIMcfarlane, INC. | Grand Forks | ND | — | ◇ UNVERIFIED |
| MMMcfarlane Mfg CO | Sauk City | WI | — | ◇ UNVERIFIED |
| MTMcferron Tool and Machine Company | Harrisonville | MO | — | ◇ UNVERIFIED |
| MAMcgill Airflow Corporation | Stockton | CA | — | ◇ UNVERIFIED |
| MMMcgill Maintenance Partnership, Lt | Freeport | TX | — | ◇ UNVERIFIED |
| MMMcgregor Manufacturing Company | Ozark | MO | — | ◇ UNVERIFIED |
| MPMcgregor Plant | Mc Gregor | TX | — | ◇ UNVERIFIED |
| MIMcguire INC. | Gnadenhutten | OH | — | ◇ UNVERIFIED |
| MJMcguire Johns Holdings INC. | Elgin | IL | — | ◇ UNVERIFIED |
| MMMcintyre Manufacturing Group, INC. | Thomasville | NC | — | ◇ UNVERIFIED |
| MMMcintyre Metals | Thomasville | NC | — | ◇ UNVERIFIED |
| MLMckc, LLC | Sandwich | IL | — | ◇ UNVERIFIED |
| MHMckee Holdings LLC | Sandy | OR | — | ◇ UNVERIFIED |
| MMMckenney Machine & Tool Company | Corinna | ME | — | ◇ 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 |
| MSMcmahno Steel CO | Chula Vista | CA | — | ◇ UNVERIFIED |
| MIMcmanus Instrument Co., INC. | Village Mills | TX | — | ◇ UNVERIFIED |
| MSMcManus Specialized Sheet Metal Works, Inc. | Milton | NY | — | ◇ 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 |
| MMMcmillan Machine Co., INC. | Phoenix | AZ | — | ◇ UNVERIFIED |
| MTMcneilus Truck - Manufacturing INC | Dodge Center | MN | — | ◇ UNVERIFIED |
| MCMcnichols Company | Garland | TX | — | ◇ UNVERIFIED |
| MPMcNic Properties LLC | Middleton | ID | — | ◇ UNVERIFIED |
| MIMcpherson Implement, Incorporated | Norman | OK | — | ◇ UNVERIFIED |
| MPM&c Precision Machining INC | Hawthorne | CA | — | ◇ UNVERIFIED |
| MIMcReynolds Investments LLC | Waterford | WI | — | ◇ UNVERIFIED |
| MMMcr Manufactured Component Resource LLC | Isanti | MN | — | ◇ UNVERIFIED |
| MIMct Industries - Bernalillo Plant | Bernalillo | NM | — | ◇ UNVERIFIED |
| MSMct Sheet Metal | Beaumont | TX | — | ◇ UNVERIFIED |
| MSMct Sheetmetal, INC. | Lafayette | LA | — | ◇ UNVERIFIED |
| MSMcwhirter Steel | Lancaster | CA | — | ◇ UNVERIFIED |
| MHMddh Holdings, LLC | Phoenix | AZ | — | ◇ UNVERIFIED |
| MIMdf Ind. INC. | Salina | KS | — | ◇ UNVERIFIED |
| MHMD Holdings, LLC | Mooresville | IN | — | ◇ UNVERIFIED |
| MCMDI Corporation | Cheney | KS | — | ◇ UNVERIFIED |
| MCMDI Corporation | Cheney | KS | — | ◇ UNVERIFIED |
| MDM & D Machine Company | Linthicum | MD | — | ◇ UNVERIFIED |
| MMMd Machine INC | Rogers | MN | — | ◇ UNVERIFIED |
| MDM - D Machining | Truman | MN | — | ◇ UNVERIFIED |
| MPM&D Precision Machining, Inc. | Garden Grove | CA | — | ◇ UNVERIFIED |
| MMMeade Metals, Inc. | Elizabethtown | KY | — | ◇ UNVERIFIED |
| MSMeaden Screw Products CO | Burr Ridge | IL | — | ◇ UNVERIFIED |
 Meadow-burke Products | Hazleton | PA | — | ◇ UNVERIFIED |
| MMMeadow Manufacturing, Inc. | Berlin | CT | — | ◇ UNVERIFIED |
| MGMec General Construction INC. | Brooklyn | NY | — | ◇ UNVERIFIED |
| MGMec General Construction INC. | Brooklyn | NY | — | ◇ UNVERIFIED |
| MAMechanical and Industrial Steel Services, INC. | Channahon | IL | — | ◇ UNVERIFIED |
| MDMechanical Designs of Virginia | Stuart | VA | — | ◇ UNVERIFIED |
| MRMechanical Repair & Engineering, L.p. | La Porte | TX | — | ◇ UNVERIFIED |
| MCMechanovent Corporation Dba the New York Blower Company | Effingham | IL | — | ◇ UNVERIFIED |
| MOMech One, INC. | San Diego | CA | — | ◇ UNVERIFIED |
| MMMechura Machine Works, LLC | Victoria | TX | — | ◇ UNVERIFIED |
| MIMec INC. | Atkins | VA | — | ◇ UNVERIFIED |
| MIMec INC. | Wayland | MI | — | ◇ UNVERIFIED |
| MIMec INC. | Byron Center | MI | — | ◇ UNVERIFIED |
| MIMecpro INC | Santa Clara | CA | — | ◇ UNVERIFIED |
| MMMedalist Mfg. INC. | Pella | IA | — | ◇ UNVERIFIED |
| MLMed-Co L.L.C. | Federal Way | WA | — | ◇ UNVERIFIED |
| MBMedia Blast & Abrasives INC | Brea | CA | — | ◇ UNVERIFIED |
| MMMedia Metals, LLC | Jackson | TN | — | ◇ UNVERIFIED |
| MMMedieval Metalwerx, LLC | Mayer | MN | — | ◇ UNVERIFIED |
| MMMedley Machine Shop INC. | Medley | FL | — | ◇ UNVERIFIED |
| MIMedplast INC. | West Berlin | NJ | — | ◇ UNVERIFIED |
| MFMedway Flower LLC | Medway | MA | — | ◇ UNVERIFIED |
| MHMedway Hall Development Group, Inc. | Jacksonville | FL | — | ◇ UNVERIFIED |
| MTMedway Tool Machining, LLC | Troy | OH | — | ◇ UNVERIFIED |
| MMMeeks Metal Works INC | Portland | OR | — | ◇ UNVERIFIED |
| MMMega Mechanical Services, LLC | Glastonbury | CT | — | ◇ UNVERIFIED |
| MTMega Tool & Mfg CORP | Elmira | NY | — | ◇ UNVERIFIED |
