| MEMayflower Enterprise | Whitman | MA | — | ◇ UNVERIFIED |
| MRMazhar Rizvi | Torrance | CA | — | ◇ UNVERIFIED |
| MBMbi (molecular Biologicals International) | Irvine | CA | — | ◇ UNVERIFIED |
| MIMca, INC. Ses C/o Hhe, INC. | Carson | CA | — | ◇ UNVERIFIED |
| MPMCM Plastics Inc | Holden | LA | — | ◇ UNVERIFIED |
| MCMcns-us Covington | Covington | GA | — | ◇ UNVERIFIED |
| MPMechanical Plastics INC | Agawam | MA | — | ◇ UNVERIFIED |
| MAMedallion Adir | Paterson | NJ | — | ◇ UNVERIFIED |
| MUMedicilon USA CORP | Woburn | MA | — | ◇ UNVERIFIED |
| MEMedtronic Energy & Component Center | Minneapolis | MN | — | ◇ UNVERIFIED |
| MUMenges Urethane INC. | Goddard | KS | — | ◇ UNVERIFIED |
| MEMenlo Energy Florida, LLC | Dade City | FL | — | ◇ UNVERIFIED |
| MOMetal Oak Casting Studios LLC | Saint Charles | MO | — | ◇ UNVERIFIED |
 Metal Products | Suwanee | GA | — | ◇ UNVERIFIED |
| MMMetamorphic Materials INC | Winsted | CT | — | ◇ UNVERIFIED |
| MHMetronom Health INC | Laguna Beach | CA | — | ◇ UNVERIFIED |
 Mfg Chemical INC. | Dalton | GA | — | ◇ UNVERIFIED |
| MRM&g Resins USA | Corpus Christi | TX | — | ◇ UNVERIFIED |
| MCMhba Chocolate Bayou Plant | Alvin | TX | — | ◇ UNVERIFIED |
| MSMichigan State University - Bioeconomy Institute | Holland | MI | — | ◇ UNVERIFIED |
| MFMicronized Fluoropolymer Products INC. | Delray Beach | FL | — | ◇ UNVERIFIED |
| MTMicro Tracers INC | Commerce | CA | — | ◇ UNVERIFIED |
| MBMicrovi Biotech INC. | Rancho Cucamonga | CA | — | ◇ UNVERIFIED |
| MSMicrowave Specialty Company | San Marcos | CA | — | ◇ UNVERIFIED |
| MDMid-atlantic Detailing Products LLC | Richmond | VA | — | ◇ UNVERIFIED |
| MAMid Atlantic Vinyl Products INC. | Fredericksburg | VA | — | ◇ UNVERIFIED |
| MCMid Con Systems, INC. | Omaha | NE | — | ◇ UNVERIFIED |
| MBMidwest Biodiesel Products | South Roxana | IL | — | ◇ UNVERIFIED |
| MKMikuni Kansas (stormwater) | Olathe | KS | — | ◇ UNVERIFIED |
| MMMilacron Marketing Company, LLC | Tecumseh | MI | — | ◇ UNVERIFIED |
| MPMilitary Packaging INC | Florence | KY | — | ◇ UNVERIFIED |
| MPMillennium Plastics, Inc | Groveland | MA | — | ◇ UNVERIFIED |
| MWMiller Waste Mills INC Dba Rtp Company | Henderson | KY | — | ◇ UNVERIFIED |
| MPMilliporesigma - Port Washington | Port Washington | WI | — | ◇ UNVERIFIED |
| MPMina Products Development INC | Costa Mesa | CA | — | ◇ UNVERIFIED |
| MRMinton Road Plant | Saginaw | TX | — | ◇ UNVERIFIED |
| MMiteject,inc | National City | CA | — | ◇ UNVERIFIED |
| MCMitsubishi Chemical Advanced Materials | Stockton | CA | — | ◇ UNVERIFIED |
| MCMitsubishi Chemical America, INC. Electrolyte Division | Memphis | TN | — | ◇ UNVERIFIED |
| MDMixed Dimensions | San Mateo | CA | — | ◇ UNVERIFIED |
| MCMobil Chemical Company | Santa Ana | CA | — | ◇ UNVERIFIED |
| MCMocom Compounds Corporation | Duncan | SC | — | ◇ UNVERIFIED |
| MPModern Plastics CORP. | Wilkes Barre | PA | — | ◇ UNVERIFIED |
| MPModern Plastics Recovery, INC. | Haviland | OH | — | ◇ UNVERIFIED |
| MSModular Solid Surfaces, LLC | Lakeland | FL | — | ◇ UNVERIFIED |
 Molecular Matrix INC | West Sacramento | CA | — | ◇ UNVERIFIED |
| MAMolten (north America) CORP (0332010080) | Findlay | OH | — | ◇ UNVERIFIED |
| MPMomentive Performance Materials | Waterford | NY | — | ◇ UNVERIFIED |
| MPMomentive Performance Materials | Madera | CA | — | ◇ UNVERIFIED |
| MSMomentive Specialty Chemicals INC | Demopolis | AL | — | ◇ UNVERIFIED |
