| MPMayser Polymer | Canton | MI | — | ◇ UNVERIFIED |
| MTMay Trucking | Phelan | CA | — | ◇ UNVERIFIED |
 Mayville Engineering Company INC Dba Mec | Vanderbilt | MI | — | ◇ UNVERIFIED |
| Mayville Engineering Company, INC. (mec) - Virginia Main Plant - Wytheville | Wytheville | VA | — | ◇ UNVERIFIED |
| MFMaywood Furniture CORP | Pomona | CA | — | ◇ UNVERIFIED |
| MCMb Calram LLC | Camarillo | CA | — | ◇ UNVERIFIED |
| MEMcardle Enterprises | Charlotte | NC | — | ◇ UNVERIFIED |
| MFMcclain's Furniture | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| MDMc Dairy Construction INC | Turlock | CA | — | ◇ UNVERIFIED |
| MFMcintire Fabricators INC | Mc Intire | IA | — | ◇ UNVERIFIED |
| MSMci Service Parts (0303000098)mci Service Parts (0303000098) | Loudonville | OH | — | ◇ UNVERIFIED |
| MMMckenna Metal LLC | Portland | OR | — | ◇ UNVERIFIED |
| MRMcLeod Racing LLC | Anaheim | CA | — | ◇ UNVERIFIED |
| MMMc Metal Creations INC | South El Monte | CA | — | ◇ UNVERIFIED |
| MMMcmurtrie & Mcmurtrie Inc, Tru-wood Prod | Azusa | CA | — | ◇ UNVERIFIED |
| MTMcneilus Truck & Manufacturing INC | Phoenix | AZ | — | ◇ UNVERIFIED |
| MRMc & R Enterprises INC Dba Bright Sky Industries | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| MMMdc Millworks INC | Garden Grove | CA | — | ◇ UNVERIFIED |
| MKMdks Kiosk, INC. | Cleveland | GA | — | ◇ UNVERIFIED |
| MSMean Stamping Industries | Vassar | MI | — | ◇ UNVERIFIED |
| MPMedway Plastics Corporation | Long Beach | CA | — | ◇ UNVERIFIED |
| MVMega Vision, INC. | Philadelphia | PA | — | ◇ UNVERIFIED |
| MFMelrose Furniture Designs | Chino | CA | — | ◇ UNVERIFIED |
| MMM&e Machine and Engineering CO | Murrieta | CA | — | ◇ UNVERIFIED |
| MTMendeola Transaxles INC | National City | CA | — | ◇ UNVERIFIED |
| MUMercedes-benz US International - Bibb County Campus | Woodstock | AL | — | ◇ UNVERIFIED |
| MIMerico INC | Marysville | CA | — | ◇ UNVERIFIED |
| MAMeridan Automotive Systems | Ionia | MI | — | ◇ UNVERIFIED |
| MAMeridian Automotive Systems INC | Centralia | IL | — | ◇ UNVERIFIED |
| MHMeritor Heavy Vehicle Systems LLC | Heath | OH | — | ◇ UNVERIFIED |
| MHMeritor Heavy Vehicle Systems, LLC | Forest City | NC | — | ◇ UNVERIFIED |
| MIMeritor, INC. | Kennesaw | GA | — | ◇ UNVERIFIED |
| MIMerritt Island Facility | Merritt Island | FL | — | ◇ UNVERIFIED |
| MEMertz Enterprises INC Dba Db Sales & Service | Garden Grove | CA | — | ◇ UNVERIFIED |
| MSMetal Smith Designs INC | Fort Myers | FL | — | ◇ UNVERIFIED |
| MMMethods Machine Tools INC | Corona | CA | — | ◇ UNVERIFIED |
| MIMetzia, INC. Dba Closet Factory | San Carlos | CA | — | ◇ UNVERIFIED |
| MCMf Classic Interior | Goleta | CA | — | ◇ UNVERIFIED |
| MAMgm Auto Body INC | Framingham | MA | — | ◇ UNVERIFIED |
| MBMichael Blankenship | Marysville | WA | — | ◇ UNVERIFIED |
| MHMichael Hamilton Furniture Fin | Los Angeles | CA | — | ◇ UNVERIFIED |
| MCMichael's CO | Sacramento | CA | — | ◇ UNVERIFIED |
| MPMidway Products Group, INC. | Greenwich | OH | — | ◇ UNVERIFIED |
| MTMikes Transmission | Lancaster | CA | — | ◇ UNVERIFIED |
| MWMikes Welding INC | Fontana | CA | — | ◇ UNVERIFIED |
| MIMillark INC Dba Identity Plus | National City | CA | — | ◇ UNVERIFIED |
| MCMiller Cat Corporation | Santa Clara | CA | — | ◇ UNVERIFIED |
| MMMiller Multiplex | Richmond | VA | — | ◇ UNVERIFIED |
| MVMillville Volunteer Fire Dept. | Millville | CA | — | ◇ UNVERIFIED |
| MGMissile Grinding INC | Gardena | CA | — | ◇ UNVERIFIED |
