| MMaterion | Milwaukee | WI | — | ◇ UNVERIFIED |
| MPMaxol Products CO INC | West Springfield | MA | — | ◇ UNVERIFIED |
| MPMax Pax LLC | Elkhorn | WI | — | ◇ UNVERIFIED |
| MMMaxum Marine Fuels | Huntington Beach | CA | — | ◇ UNVERIFIED |
| MRMazhar Rizvi | Torrance | CA | — | ◇ UNVERIFIED |
| MFMb Fueling INC. | West Covina | CA | — | ◇ UNVERIFIED |
| MBMbi (molecular Biologicals International) | Irvine | CA | — | ◇ UNVERIFIED |
| MSMB Stone Care & Supply Limited Liability Company | Wilson | NC | — | ◇ UNVERIFIED |
| MIMca, INC. Ses C/o Hhe, INC. | Carson | CA | — | ◇ UNVERIFIED |
| MCM Chemical Manufacturing | Baytown | TX | — | ◇ UNVERIFIED |
| M3Mc (us) 3 Llc, Glutaraldehyde Plant | Dunbar | WV | — | ◇ UNVERIFIED |
| MAMedallion Adir | Paterson | NJ | — | ◇ UNVERIFIED |
| MBMedical Biowaste Solutions INC | Mission Viejo | CA | — | ◇ UNVERIFIED |
| MUMedicilon USA CORP | Woburn | MA | — | ◇ UNVERIFIED |
| MIMeguiar's INC | Nashville | TN | — | ◇ UNVERIFIED |
| MCMel Chemicals INC | Flemington | NJ | — | ◇ UNVERIFIED |
| MPMemc Pasadena, Incorporated | Pasadena | TX | — | ◇ UNVERIFIED |
| MEMenlo Energy Florida, LLC | Dade City | FL | — | ◇ UNVERIFIED |
| MLMenon Laboratories | Somerville | MA | — | ◇ UNVERIFIED |
| MAMetals and Additives | Brazil | IN | — | ◇ UNVERIFIED |
| MAMetals and Additives LLC Warehouse | Brazil | IN | — | ◇ UNVERIFIED |
 Mfg Chemical INC. | Dalton | GA | — | ◇ UNVERIFIED |
| MPMgc Pure Chemicals America INC | Forest Grove | OR | — | ◇ UNVERIFIED |
| MHMGrove Holdings, LLC | Saratoga Springs | NY | — | ◇ UNVERIFIED |
| MCMhba Chocolate Bayou Plant | Alvin | TX | — | ◇ UNVERIFIED |
| MPMiami Prods & Chemical CO | Fairborn | OH | — | ◇ UNVERIFIED |
| MAMichigan Additive Technologies INC. | Erie | MI | — | ◇ UNVERIFIED |
| MSMichigan State University - Bioeconomy Institute | Holland | MI | — | ◇ UNVERIFIED |
| MTMicro Tracers INC | Commerce | CA | — | ◇ UNVERIFIED |
| MCMid-america Conversion Services - Depleted Uranium Hexfloride Conversion Facility | Kevil | KY | — | ◇ UNVERIFIED |
| MDMid-atlantic Detailing Products LLC | Richmond | VA | — | ◇ UNVERIFIED |
| MCMid Con Systems, INC. | Omaha | NE | — | ◇ UNVERIFIED |
| MIMidlab, INC. | Santa Ana | CA | — | ◇ UNVERIFIED |
| MIMidlab, INC. | Ontario | CA | — | ◇ UNVERIFIED |
| MIMidlab, INC. | San Diego | CA | — | ◇ UNVERIFIED |
| MBMidwest Biodiesel Products | South Roxana | IL | — | ◇ UNVERIFIED |
| MKMikuni Kansas (stormwater) | Olathe | KS | — | ◇ UNVERIFIED |
| MPMilliporesigma - Port Washington | Port Washington | WI | — | ◇ UNVERIFIED |
| MIMississippi Investment Petroleum Company | Houston | MS | — | ◇ UNVERIFIED |
| MIMitchellace INC Dba Adcor Products | Brea | CA | — | ◇ UNVERIFIED |
| MCMitsubishi Chemical America, INC. Electrolyte Division | Memphis | TN | — | ◇ UNVERIFIED |
| MJM & J INC | Toa Baja | PR | — | ◇ UNVERIFIED |
| MKM & K Holdings, L.L.C. | Boone | IA | — | ◇ UNVERIFIED |
| MLMohawk Laboratories | Sunnyvale | CA | — | ◇ UNVERIFIED |
| MLMohawk Labs--division of Nch CORP. | Indianapolis | IN | — | ◇ UNVERIFIED |
 Molecular Matrix INC | West Sacramento | CA | — | ◇ UNVERIFIED |
| MPMomentive Performance Materials | Waterford | NY | — | ◇ UNVERIFIED |
| MSMomentive Specialty Chemicals INC | Demopolis | AL | — | ◇ UNVERIFIED |
| MSMomentive Specialty Chemicals INC. | Riegelwood | NC | — | ◇ UNVERIFIED |
| MSMomentive Specialty Chemicals INC. | Columbus | OH | — | ◇ UNVERIFIED |
