| MPMirandy Products LLC | South Hempstead | NY | — | ◇ UNVERIFIED |
| MFMisbehaven Fireworks CORP. | Catskill | NY | — | ◇ UNVERIFIED |
| MEMissouri Electrochem Incorporated | Saint Louis | MO | — | ◇ UNVERIFIED |
| MSM-i Swaco | Shafter | CA | — | ◇ UNVERIFIED |
| MCMitsubishi Chemical America, INC. | Charlotte | NC | — | ◇ UNVERIFIED |
| MMitwellness | Blue Springs | MO | — | ◇ UNVERIFIED |
| MMMix Manufacturing INC Dba Prism Corporation | Saint Paul | MN | — | ◇ UNVERIFIED |
| MSMmp Sco LLC | Taft | LA | — | ◇ UNVERIFIED |
| MIMoasis, INC. | San Jose | CA | — | ◇ UNVERIFIED |
| MMMobile Mini | Gardena | CA | — | ◇ UNVERIFIED |
| MOMobil Oil Plano | Plano | TX | — | ◇ UNVERIFIED |
| MWModern Waste Solutions, INC. | Sacramento | CA | — | ◇ UNVERIFIED |
| MFMohawk Finishing Products Site Former-rpm | Amsterdam | NY | — | ◇ UNVERIFIED |
| MGMolecular Glasses inc. | Rochester | NY | — | ◇ UNVERIFIED |
 Molecular Products, INC | Boulder | CO | — | ◇ UNVERIFIED |
| MIMoleculax INC | Pasadena | CA | — | ◇ UNVERIFIED |
| MSMomentive Specialty Chemicals INC. | Brady | TX | — | ◇ UNVERIFIED |
| MCMonsanto Chemical Company | Long Beach | CA | — | ◇ UNVERIFIED |
| MCMonson Chemical Distribution | Leominster | MA | — | ◇ UNVERIFIED |
| MBMoon Blue LLC | San Diego | CA | — | ◇ UNVERIFIED |
| MPMortex Products, INC. | Indianapolis | IN | — | ◇ UNVERIFIED |
| MDMorwet Detergent Plant | Fort Worth | TX | — | ◇ UNVERIFIED |
| MCMoss Copy Center | Denver | CO | — | ◇ UNVERIFIED |
| MSMpower Specialty Chemicals | Brookshire | TX | — | ◇ UNVERIFIED |
| MSM & S Recycling, LLC | Bethlehem | PA | — | ◇ UNVERIFIED |
| MIMti Insulated Products, INC. | Fort Wayne | IN | — | ◇ UNVERIFIED |
| MGMulti-chem Gc LLC - New Iberia Chemical Distribution Facility | New Iberia | LA | — | ◇ UNVERIFIED |
| MGMulti-chem Group LLC - Geismar Facility | Geismar | LA | — | ◇ UNVERIFIED |
| MGMulti-chem Group, LLC Rock Springs Facility | Rock Springs | WY | — | ◇ UNVERIFIED |
| MRMultichem Rifle Facility | Rifle | CO | — | ◇ UNVERIFIED |
| MFMultisorb Filtration Group, French Road Facility | Buffalo | NY | — | ◇ UNVERIFIED |
| NCNabr Carbondale LLC | Carbondale | IL | — | ◇ UNVERIFIED |
| NNalco | San Bernardino | CA | — | ◇ UNVERIFIED |
| NANalco an Ecolab Company | Bryan | TX | — | ◇ UNVERIFIED |
| NCNalco Company | Lathrop | CA | — | ◇ UNVERIFIED |
| NCNalco Company | Maiden | NC | — | ◇ UNVERIFIED |
 Nalco Company, Energy Services Division | Evansville | WY | — | ◇ UNVERIFIED |
| NCNalco CO Tulsa Plant 102 | Tulsa | OK | — | ◇ UNVERIFIED |
| NENalco Energy Services LP | Gillette | WY | — | ◇ UNVERIFIED |
| Nalco Production Texarkana | Texarkana | TX | — | ◇ UNVERIFIED |
| NSNanochem Solutions INC | Peru | IL | — | ◇ UNVERIFIED |
| NCNanogram Corporation | Milpitas | CA | — | ◇ UNVERIFIED |
| NDNanogram Devices Corporation | Fremont | CA | — | ◇ UNVERIFIED |
| NNanoh20 | El Segundo | CA | — | ◇ UNVERIFIED |
| NTNanointegris Technologies INC | Menlo Park | CA | — | ◇ UNVERIFIED |
| NINanosyn INC | Santa Rosa | CA | — | ◇ UNVERIFIED |
| NNanosys | Milpitas | CA | — | ◇ UNVERIFIED |
| NMNanotech Metals, INC. | Lakeland | FL | — | ◇ UNVERIFIED |
 National Foam/west Chester | West Chester | PA | — | ◇ UNVERIFIED |
| NRNatural Remedies Consulting | Modesto | CA | — | ◇ UNVERIFIED |
