| MIMesa Industries | Fort Smith | AR | — | ◇ 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 |
| MRM&g Resins USA | Corpus Christi | TX | — | ◇ UNVERIFIED |
| MPMicalline Products INC | Columbia | SC | — | ◇ UNVERIFIED |
| MCMichels Corporation | Brownsville | WI | — | ◇ UNVERIFIED |
| MCMi Conveyance Solutions Group-apache Division-ia38 | Cedar Rapids | IA | — | ◇ UNVERIFIED |
| MFMicronized Fluoropolymer Products INC. | Delray Beach | FL | — | ◇ UNVERIFIED |
| MBMicrovi Biotech INC. | Rancho Cucamonga | CA | — | ◇ UNVERIFIED |
| MSMicrowave Specialty Company | San Marcos | CA | — | ◇ UNVERIFIED |
| MAMid Atlantic Vinyl Products INC. | Fredericksburg | VA | — | ◇ UNVERIFIED |
 Midwest Hose & Specialty INC | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
 Midwest Rubber Services & Supply | Plymouth | MN | — | ◇ UNVERIFIED |
| Midwest Rubber & Supply CO | Denver | CO | — | ◇ UNVERIFIED |
| MMMilacron Marketing Company, LLC | Tecumseh | MI | — | ◇ UNVERIFIED |
| MFMiles Fiberglass and Composites | Oregon City | OR | — | ◇ UNVERIFIED |
| MFMiles Fiberglass and Plastics Site | Portland | OR | — | ◇ UNVERIFIED |
| MPMilitary Packaging INC | Florence | KY | — | ◇ UNVERIFIED |
| MPMillennium Plastics, Inc | Groveland | MA | — | ◇ UNVERIFIED |
| MWMiller Waste Mills | Crockett | TX | — | ◇ UNVERIFIED |
| MWMiller Waste Mills Dba Rtp CO | Portage | WI | — | ◇ UNVERIFIED |
| MWMiller Waste Mills INC Dba Rtp Company | Winona | MN | — | ◇ UNVERIFIED |
| MWMiller Waste Mills INC Dba Rtp Company | Henderson | KY | — | ◇ UNVERIFIED |
| MPMina Products Development INC | Costa Mesa | CA | — | ◇ UNVERIFIED |
| MFMinnesota Flexible Corporation | South Saint Paul | MN | — | ◇ UNVERIFIED |
| MUMinova USA INC | Bluefield | WV | — | ◇ UNVERIFIED |
| MRMinton Road Plant | Saginaw | TX | — | ◇ UNVERIFIED |
| MMiteject,inc | National City | CA | — | ◇ UNVERIFIED |
| MCMitsubishi Chemical Advanced Materials | Stockton | CA | — | ◇ UNVERIFIED |
| MCMitsubishi Chemical Carbon Fiber and Composites, INC. | Rancho Cucamonga | CA | — | ◇ UNVERIFIED |
| MDMixed Dimensions | San Mateo | CA | — | ◇ UNVERIFIED |
| MSMkg Single Family Subdivision | Nazareth | PA | — | ◇ UNVERIFIED |
| MCMobil Chemical Company | Santa Ana | CA | — | ◇ UNVERIFIED |
| MCMocom Compounds Corporation | Duncan | SC | — | ◇ UNVERIFIED |
| MDModern Dispersion | Leominster | MA | — | ◇ UNVERIFIED |
| MPModern Plastics CORP. | Wilkes Barre | PA | — | ◇ UNVERIFIED |
| MPModern Plastics Recovery, INC. | Haviland | OH | — | ◇ UNVERIFIED |
| MPModified Plastics INC | Santa Ana | CA | — | ◇ UNVERIFIED |
| MSModular Solid Surfaces, LLC | Lakeland | FL | — | ◇ UNVERIFIED |
| MFMolded Fiber Glass - Muskrat | Adelanto | CA | — | ◇ UNVERIFIED |
| MAMolten (north America) CORP (0332010080) | Findlay | OH | — | ◇ UNVERIFIED |
| MPMomentive Performance Materials | Waterford | NY | — | ◇ UNVERIFIED |
| MPMomentive Performance Materials | Madera | CA | — | ◇ UNVERIFIED |
| MPMomentive Performance Materials USA LLC | Chino | CA | — | ◇ UNVERIFIED |
| MSMomentive Specialty Chemicals INC. | High Point | NC | — | ◇ UNVERIFIED |
| MSMomentive Specialty Chemicals INC Mt Jewett Facility | Mount Jewett | PA | — | ◇ UNVERIFIED |
| MPMondo Polymer Technologies, INC. | Marietta | OH | — | ◇ UNVERIFIED |
| MFMoon Family Enterprises, LLC | Rancho Cucamonga | CA | — | ◇ UNVERIFIED |
