| MCMagnum Custom Trailer Manufacturing Co., INC. | San Antonio | TX | — | ◇ UNVERIFIED |
| MIMaine Ind Tire Llc/red Lion | Red Lion | PA | — | ◇ UNVERIFIED |
| MCMaintainer CORP of Ky INC | Hopkinsville | KY | — | ◇ UNVERIFIED |
| MTManac Trailers Usa, INC. | Oran | MO | — | ◇ UNVERIFIED |
| MTManac Trailers USA INC Oran | Oran | MO | — | ◇ UNVERIFIED |
| MCManiar Corporation | Windsor | CA | — | ◇ UNVERIFIED |
| MDMann Distribution LLC | Warwick | RI | — | ◇ UNVERIFIED |
| MEManning Equipment Company | Louisville | KY | — | ◇ UNVERIFIED |
| MTMansfield Trailer Solutions LLC | San Bernardino | CA | — | ◇ UNVERIFIED |
| MOMap of Easton, INC. | Granger | IN | — | ◇ UNVERIFIED |
| MIMarathon Industries INC | Saugus | CA | — | ◇ UNVERIFIED |
| MIMarathon Industries INC | Palmdale | CA | — | ◇ UNVERIFIED |
| MIMarathon Industries INC | Santa Clarita | CA | — | ◇ UNVERIFIED |
| MIMarathon Industries INC | Santa Clarita | CA | — | ◇ UNVERIFIED |
| MAMarcums Auto Sales | Irvine | KY | — | ◇ UNVERIFIED |
| MMMarksman Manufacturing | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| MEMarro's Equipment & Trucks INC. | Waterloo | NY | — | ◇ UNVERIFIED |
| MMartin | San Diego | CA | — | ◇ UNVERIFIED |
| MHMartinrea Hopkinsville LLC | Hopkinsville | KY | — | ◇ UNVERIFIED |
| MVMarv Vollmer's Trailer Spring & Wheel | Rancho Cordova | CA | — | ◇ UNVERIFIED |
| MLMatt Lee | Los Angeles | CA | — | ◇ UNVERIFIED |
| MCMAXIM Custom Food Trailers LLC | Denver | CO | — | ◇ UNVERIFIED |
| MIMaxon Industries INC | Huntington Park | CA | — | ◇ UNVERIFIED |
| MVMayflower Vehicle Systems, LLC | Kings Mountain | NC | — | ◇ UNVERIFIED |
 Mayville Engineering Company, INC. (mec) - Virginia Main Plant - Wytheville | Wytheville | VA | — | ◇ UNVERIFIED |
| MIMcclain Industries, INC. | Sterling Hts | MI | — | ◇ UNVERIFIED |
| MEMc Express Trucking LLC | San Diego | CA | — | ◇ UNVERIFIED |
 Mclaughlin Body CO | East Moline | IL | — | ◇ UNVERIFIED |
| MTMcneilus Truck and Manufacturing, INC. | Dodge Center | MN | — | ◇ UNVERIFIED |
| MTMcneilus Truck and Mfg INC | Villa Rica | GA | — | ◇ UNVERIFIED |
| MTMcneilus Truck & Manufacturing | Colton | CA | — | ◇ UNVERIFIED |
| MTMcneilus Truck - Manufacturing INC | Dodge Center | MN | — | ◇ UNVERIFIED |
| MTMcneilus Truck & Manufacturing Truck Sales/service Center | Villa Rica | GA | — | ◇ UNVERIFIED |
| MMMedlin Material Handling Equipment,inc. | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| MAMedtec Ambulance CORP | White Pigeon | MI | — | ◇ UNVERIFIED |
| MLMelleck LLC | Hopkinsville | KY | — | ◇ UNVERIFIED |
| MTMendoza Trans INC | Bakersfield | CA | — | ◇ UNVERIFIED |
| MUMercedes-benz US International - Bibb County Campus | Woodstock | AL | — | ◇ UNVERIFIED |
| MMMercy Medical Transp INC | Mariposa | CA | — | ◇ UNVERIFIED |
| MAMerhow Acquisition LLC Dba Merhow Industries | White Pigeon | MI | — | ◇ UNVERIFIED |
| MHMeritor Heavy Vehicle Systems, LLC | Forest City | NC | — | ◇ UNVERIFIED |
| MHMeritor Hvbs (usa) | Carrollton | KY | — | ◇ UNVERIFIED |
| MEMerritt Equipment Company | Henderson | CO | — | ◇ UNVERIFIED |
| MSMetalsa Sa De Cv | Owensboro | KY | — | ◇ UNVERIFIED |
| MTMetro Truck Body INC | Corona | CA | — | ◇ UNVERIFIED |
| MTMeyer Truck Equipment | Jasper | IN | — | ◇ UNVERIFIED |
| MHM. H. Eby Trailers INC | Ephrata | PA | — | ◇ UNVERIFIED |
| MTMickey Truck Bodies INC | High Point | NC | — | ◇ UNVERIFIED |
| MTMickey Truck Bodies INC | Bloomington | IL | — | ◇ UNVERIFIED |
| MTMickey Truck Bodies INC | Dallas | TX | — | ◇ UNVERIFIED |
