| MBMaster Builders Solutions US LLC | Allentown | PA | — | ◇ UNVERIFIED |
| MMMaster Made Paints Incorporated | Carl Junction | MO | — | ◇ UNVERIFIED |
| MPMaster Paints & Chemicals CORP | Guayanilla | PR | — | ◇ UNVERIFIED |
| MWMaster Wall INC. | Lithonia | GA | — | ◇ UNVERIFIED |
| MWMaster Wash | Commerce City | CO | — | ◇ UNVERIFIED |
| MPMatthews Paint CO | Pleasant Prairie | WI | — | ◇ UNVERIFIED |
| MIMaxxum INC | Rush | MN | — | ◇ UNVERIFIED |
| MIMcalpin Industries INC | Macedon | NY | — | ◇ UNVERIFIED |
| MPMccormick Paint Works Company | Rockville | MD | — | ◇ UNVERIFIED |
| MIMc Ionic Solutions Us, INC | Memphis | TN | — | ◇ UNVERIFIED |
| MRMckees Rocks Transfer Station | Mc Kees Rocks | PA | — | ◇ UNVERIFIED |
| MIMenard INC Fleet North | Eau Claire | WI | — | ◇ UNVERIFIED |
| MIMesa Industries | Fort Smith | AR | — | ◇ UNVERIFIED |
| MMMesa Marble & Stone CO INC (dba Marble-craft) | Bryan | TX | — | ◇ UNVERIFIED |
| MFMetal Finishing Research CORP | Chicago | IL | — | ◇ UNVERIFIED |
| MCMetokote Corporation | Sanford | NC | — | ◇ UNVERIFIED |
| MPMiami Products & Chemical CO. | Dayton | OH | — | ◇ UNVERIFIED |
 Michelman, INC. | Sharonville | OH | — | ◇ UNVERIFIED |
| MCMichigan Coating Products INC | Wyoming | MI | — | ◇ UNVERIFIED |
| MIMichigan Industrial Finishes | Hamtramck | MI | — | ◇ UNVERIFIED |
| MCMichlin Chemical CORP | Detroit | MI | — | ◇ UNVERIFIED |
| MAMid America Coatings | Addison | IL | — | ◇ UNVERIFIED |
| MAMid America Protective Coatings | Franklin Park | IL | — | ◇ UNVERIFIED |
| MAMid America Protective Coatings INC | Elk Grove Village | IL | — | ◇ UNVERIFIED |
| MPMid-states Paint & Chem CO | Saint Louis | MO | — | ◇ UNVERIFIED |
| MFMiles Fiberglass and Composites | Oregon City | OR | — | ◇ UNVERIFIED |
| MFMiles Fiberglass and Plastics Site | Portland | OR | — | ◇ UNVERIFIED |
| MWMiller Waste Mills Dba Rtp Company | Winona | MN | — | ◇ UNVERIFIED |
| MCMilliken Chemical Keystone Plant- Milli | Inman | SC | — | ◇ UNVERIFIED |
| MMMilspray Military Technologies | Lakewood | NJ | — | ◇ UNVERIFIED |
| MRMineral Right, INC. Environmental Manager | Phillipsburg | KS | — | ◇ UNVERIFIED |
| MIMinuteman International Multi-clean Div | Shoreview | MN | — | ◇ UNVERIFIED |
| MLMira Loma Peaker Generating Station | Ontario | CA | — | ◇ UNVERIFIED |
| MPMirandy Products LLC | South Hempstead | NY | — | ◇ UNVERIFIED |
| MEMissouri Electrochem Incorporated | Saint Louis | MO | — | ◇ UNVERIFIED |
| MPMissouri Paint & Varnish | Saint Louis | MO | — | ◇ UNVERIFIED |
| MDModern Dispersion | Leominster | MA | — | ◇ UNVERIFIED |
| MCModineer Company | Benton Harbor | MI | — | ◇ UNVERIFIED |
| MCMonson Chemical Distribution | Leominster | MA | — | ◇ UNVERIFIED |
| MLMorris Lister Avenue Assn | Newark | NJ | — | ◇ UNVERIFIED |
| MIMorton International | Grand Saline | TX | — | ◇ UNVERIFIED |
| MSMpower Specialty Chemicals | Brookshire | TX | — | ◇ UNVERIFIED |
| MIMti Insulated Products, INC. | Fort Wayne | IN | — | ◇ UNVERIFIED |
| MCMuehlstein Compounded Products | Houston | TX | — | ◇ UNVERIFIED |
| MIMultibase INC | Copley | OH | — | ◇ 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 |
| MSMulticolor Specialties INC | Cicero | IL | — | ◇ UNVERIFIED |
| MFMultisorb Filtration Group, French Road Facility | Buffalo | NY | — | ◇ UNVERIFIED |
| MCMuralo CO INC Norton & Son Div | Bayonne | NJ | — | ◇ UNVERIFIED |
 Nalco Company, Energy Services Division | Evansville | WY | — | ◇ UNVERIFIED |
| NCNalco CO Tulsa Plant 102 | Tulsa | OK | — | ◇ UNVERIFIED |
| NENalco Energy Services LP | Gillette | WY | — | ◇ UNVERIFIED |
| NSNanochem Solutions INC | Peru | IL | — | ◇ UNVERIFIED |
| NNanosys | Milpitas | CA | — | ◇ UNVERIFIED |
| NBNational Bronze Powder CO INC | Franklin Park | IL | — | ◇ UNVERIFIED |
 National Foam/west Chester | West Chester | PA | — | ◇ UNVERIFIED |
| NINcoc INC (national Chemical & Oil CORP ) | Oak Park | MI | — | ◇ UNVERIFIED |
 Ncp Coatings, INC. (mishawaka Facility) | Mishawaka | IN | — | ◇ UNVERIFIED |
| NDNew Deal Deicing - Denver Plant | Denver | CO | — | ◇ UNVERIFIED |
| NJNew Jersey Fireworks | Elkton | MD | — | ◇ UNVERIFIED |
| NLNew Life Solutions, LLC | Ashland | VA | — | ◇ UNVERIFIED |
| NLNex-gen LLC | Chavies | KY | — | ◇ UNVERIFIED |
| NSNext-gen Supply Group INC | Mansfield | MA | — | ◇ UNVERIFIED |
| NPNiche Polymer LLC | Ravenswood | WV | — | ◇ UNVERIFIED |
| NPNippon Paint Automotive Americas (npaa) | Hobart | IN | — | ◇ UNVERIFIED |
| NANorth American Paint Corporation | Ocean | NJ | — | ◇ UNVERIFIED |
| NANorth American Polymer Company LTD | Skokie | IL | — | ◇ UNVERIFIED |
| NANorth American Salt CO | Chicago | IL | — | ◇ UNVERIFIED |
| NCNorthrup-grumman CORP Michoud Assembly Facility La | New Orleans | LA | — | ◇ UNVERIFIED |
| NINoveon INC | Bainbridge Township | OH | — | ◇ UNVERIFIED |
| NCNubrite Chemical CO R-3 | Taunton | MA | — | ◇ UNVERIFIED |
| NSNupla - South | Meridian | MS | — | ◇ UNVERIFIED |
| NSNursery Supplies INC | Orange | CA | — | ◇ UNVERIFIED |
| NWNu Wood Design | Lake Forest | CA | — | ◇ UNVERIFIED |
| NDNypro Devens | Devens | MA | — | ◇ UNVERIFIED |
| OCOakely City | Oakley | UT | — | ◇ UNVERIFIED |
| OROak Ridge Foam & Coating Systems INC | Green Lake | WI | — | ◇ UNVERIFIED |
| OFOberon Fuels Kershaw Facility | Brawley | CA | — | ◇ UNVERIFIED |
| OCO'brien CORP | Brunswick | GA | — | ◇ UNVERIFIED |
| OIOctochem INC | Vandalia | IL | — | ◇ UNVERIFIED |
| OFOdom Fiberglass INC. | Milton | FL | — | ◇ UNVERIFIED |
| OIOemeta INC. | Salt Lake City | UT | — | ◇ UNVERIFIED |
| OGOhio Gratings INC | Ridgeland | SC | — | ◇ UNVERIFIED |
| OSOilfield Solutions Midland | Midland | TX | — | ◇ UNVERIFIED |
| OWOld Western Paint CO INC | Denver | CO | — | ◇ UNVERIFIED |
| OCOlin CORP - Moundsville Plant | Moundsville | WV | — | ◇ UNVERIFIED |
| OCOmega Coating | El Dorado | KS | — | ◇ UNVERIFIED |
| OEOmg Electronic Chemicals | South Plainfield | NJ | — | ◇ UNVERIFIED |
| OSOmnova Solutions INC. - Calhoun Latex Plant | Calhoun | GA | — | ◇ UNVERIFIED |
| OBOpen Book Extracts | Roxboro | NC | — | ◇ UNVERIFIED |
| OCOpt CO | Gilbert | AZ | — | ◇ UNVERIFIED |
| OIOptiblend Industries-cambridge | Cambridge | OH | — | ◇ UNVERIFIED |
| OIOptiblend Industries, INC. | Midland | TX | — | ◇ UNVERIFIED |
| OCOrange County Plating CO INC | Orange | CA | — | ◇ UNVERIFIED |
| OCOrange County Powdercoating Co.,inc. | Orange | CA | — | ◇ UNVERIFIED |
| OPOrc Plastics - Rostone | Lafayette | IN | — | ◇ UNVERIFIED |
| OSOregon State Penitentiary | Salem | OR | — | ◇ UNVERIFIED |
| OCOrg Chem Group LLC | Evansville | IN | — | ◇ UNVERIFIED |
