| MCMakana Corporation | Tampa | FL | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MLMaravai Lifesciences | San Diego | CA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MCMarson Corporation | Chelsea | MA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MBMaster Builders Solutions Admixtures US LLC | Kent | WA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MBMaster Builders Solutions Admixtures US LLC | Longwood | FL | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MAMasterpice Artist Canvas | San Francisco | CA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MCMD Chemicals LLC | Mendon | MA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MMdp | Richmond | VA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MSMedpak Solutions LLC | Saint Petersburg | FL | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MMMeeco Manufacturing Company, Inc. | Seattle | WA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
 Merit Medical Systems, INC | San Jose | CA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MAMesquite Air Tanker Base | Mesquite | NV | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MPMetals Processing, INC | Milwaukee | WI | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MAMexichem America INC | Tennent | NJ | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MLMH Lanz Capital, LLC | Zion | IL | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MDMicrobial Discovery Group | Franklin | WI | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MFMidland Facility | Midland | TX | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MAMidwest Agra Bio Diesel | Mclean | IL | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MBMidwest Biofuels INC | Pekin | IL | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MSMiirant Station H | Dickerson | MD | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MEMikeone Ek Maitland Summit, LLC | Orlando | FL | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MCMikuni Color USA INC. | West Sacramento | CA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MCMiles City Seat Base | Miles City | MT | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MLM-i L L C Zavalla | Zavalla | TX | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MIMinutia INC Bakar Labs | Berkeley | CA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MFMisbehaven Fireworks CORP. | Catskill | NY | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MSM-i Swaco | Shafter | CA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MCMitsubishi Chemical America, INC. | Charlotte | NC | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MIMoasis, INC. | San Jose | CA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MMMobile Mini | Gardena | CA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MOMobil Oil Plano | Plano | TX | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MWModern Waste Solutions, INC. | Sacramento | CA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MFMohawk Finishing Products Site Former-rpm | Amsterdam | NY | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MGMolecular Glasses inc. | Rochester | NY | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MSMomentive Specialty Chemicals INC. | Brady | TX | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MCMonsanto Chemical Company | Long Beach | CA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MBMoon Blue LLC | San Diego | CA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MPMortex Products, INC. | Indianapolis | IN | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MDMorwet Detergent Plant | Fort Worth | TX | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MCMoss Copy Center | Denver | CO | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MSM & S Recycling, LLC | Bethlehem | PA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MRMultichem Rifle Facility | Rifle | CO | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| NCNabr Carbondale LLC | Carbondale | IL | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| NANalco an Ecolab Company | Bryan | TX | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| NCNalco Company | Maiden | NC | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
 Nalco Production Texarkana | Texarkana | TX | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| NNanoh20 | El Segundo | CA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| NINanosyn INC | Santa Rosa | CA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| NMNanotech Metals, INC. | Lakeland | FL | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| NRNatural Remedies Consulting | Modesto | CA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
