| MCModineer Company | Benton Harbor | MI | — | ◇ UNVERIFIED |
| MSModular Solid Surfaces, LLC | Lakeland | FL | — | ◇ UNVERIFIED |
| MSMomentive Specialty Chemicals INC | Demopolis | AL | — | ◇ UNVERIFIED |
| MSMomentive Specialty Chemicals INC Mt Jewett Facility | Mount Jewett | PA | — | ◇ UNVERIFIED |
| MCMonsanto CO | Kenilworth | NJ | — | ◇ UNVERIFIED |
| MCMontrose Chemical Corporation of Ca -henderson, Nevada Site | Henderson | NV | — | ◇ UNVERIFIED |
| MCMorgan County Renewable Fuels, LLC | Log Lane Village, 3.5 Mi Sw of | CO | — | ◇ UNVERIFIED |
| MLMorris Lister Avenue Assn | Newark | NJ | — | ◇ UNVERIFIED |
| MMMountain Marble Manufacturing INC | Prescott Valley | AZ | — | ◇ UNVERIFIED |
| MPMrc Polymers INC | Chicago | IL | — | ◇ UNVERIFIED |
| MSMulticolor Specialties INC | Cicero | IL | — | ◇ UNVERIFIED |
| MCMuralo CO INC Norton & Son Div | Bayonne | NJ | — | ◇ UNVERIFIED |
| MIMylec INC | Winchendon | MA | — | ◇ UNVERIFIED |
| NINA Industries Pasadena | Seabrook | TX | — | ◇ UNVERIFIED |
| NBNational Bronze Powder CO INC | Franklin Park | IL | — | ◇ UNVERIFIED |
| NCNational Casein | Tyler | TX | — | ◇ UNVERIFIED |
| NPNational Patent Development CO Hydron Me | New Brunswick | NJ | — | ◇ UNVERIFIED |
| NPNational Peening Incorporated | Salem | VA | — | ◇ UNVERIFIED |
| NPNational Plastics Color | Valley Center | KS | — | ◇ UNVERIFIED |
| NTNational Trail Biodiesel Group LLC | Newton | IL | — | ◇ UNVERIFIED |
 Ncp Coatings, INC. (mishawaka Facility) | Mishawaka | IN | — | ◇ UNVERIFIED |
| NSNeel Schaffer Inc, Jitney Jr Number 617 | Tchula | MS | — | ◇ UNVERIFIED |
| NBNelson Biotechnologies INC | Flagstaff | AZ | — | ◇ UNVERIFIED |
| NCNeville Chemical CO | Anaheim | CA | — | ◇ UNVERIFIED |
| NANewark Armed Forces Reserve Center | Newark | DE | — | ◇ UNVERIFIED |
| NENew Eden Energy LLC | Saint Cloud | FL | — | ◇ UNVERIFIED |
| NENew England Laminates CO INC | Walden | NY | — | ◇ UNVERIFIED |
| NENew England Plastic | Norton | MA | — | ◇ UNVERIFIED |
| NMNew Model Cleaners INC. | Boston | MA | — | ◇ UNVERIFIED |
| NPNew Pig CORP | Tipton | PA | — | ◇ UNVERIFIED |
| NDNext Diesel | Adrian | MI | — | ◇ UNVERIFIED |
| NPNiche Polymer LLC | Ravenswood | WV | — | ◇ UNVERIFIED |
| NPNickelson Plastics INC | Johnson City | TN | — | ◇ UNVERIFIED |
| NCNippon Carbide Industries | Greenville | SC | — | ◇ UNVERIFIED |
| NPNippon Paint Automotive Americas (npaa) | Hobart | IN | — | ◇ UNVERIFIED |
| NSNjdep @ Syncon Resins INC | Kearny | NJ | — | ◇ UNVERIFIED |
| NANorth American Paint Corporation | Ocean | NJ | — | ◇ UNVERIFIED |
| NANorth American Polymer Company LTD | Skokie | IL | — | ◇ UNVERIFIED |
| NCNorth Charleston Distribution Terminal | Charleston | WV | — | ◇ UNVERIFIED |
| NINorthern Industries | Coventry | RI | — | ◇ UNVERIFIED |
| NCNorthrup-grumman CORP Michoud Assembly Facility La | New Orleans | LA | — | ◇ UNVERIFIED |
| NPNorthwestern Plating Works | Chicago | IL | — | ◇ UNVERIFIED |
| NCNottingham Company | Atlanta | GA | — | ◇ UNVERIFIED |
| NFNouryon Functional Chemicals Burt Plant | Burt | NY | — | ◇ UNVERIFIED |
| NPNouryon Pulp & Performance Chemicals | Duluth | GA | — | ◇ UNVERIFIED |
| NCNovachem Corporation | High Point | NC | — | ◇ UNVERIFIED |
| NCNova Chemicals | Channahon | IL | — | ◇ UNVERIFIED |
| NCNova Chemicals INC | Indian Orchard | MA | — | ◇ UNVERIFIED |
| NCNova Chemicals INC | Belpre | OH | — | ◇ UNVERIFIED |
| NCNovacor Chemical INC | Leominster | MA | — | ◇ UNVERIFIED |
| NPNova Pressroom Products | Jacksonville | FL | — | ◇ UNVERIFIED |
| NINoveon INC | Bainbridge Township | OH | — | ◇ UNVERIFIED |
| NBNovozymes Biologicals INC - South Broad Street | Salem | VA | — | ◇ UNVERIFIED |
| NCNubrite Chemical CO R-3 | Taunton | MA | — | ◇ UNVERIFIED |
| NINuset Industries, Orrco, 02 Bl (nuseti) | Salt Lake City | UT | — | ◇ UNVERIFIED |
| NBNutrition & Biosciences USA 1, Llc, Midland | Midland | MI | — | ◇ UNVERIFIED |
| NBNutrition & Biosciences USA 1 LLC - Plaquemine Methocel | Plaquemine | LA | — | ◇ UNVERIFIED |
| OROak Ridge Foam & Coating Systems INC | Green Lake | WI | — | ◇ UNVERIFIED |
| OFOberon Fuels Kershaw Facility | Brawley | CA | — | ◇ UNVERIFIED |
| OObiter | Champaign | IL | — | ◇ UNVERIFIED |
| OCO'brien CORP | Brunswick | GA | — | ◇ UNVERIFIED |
| OCOccidental Chemical CORP Sauget Plant | Sauget | IL | — | ◇ UNVERIFIED |
| OROcean Reef Pools INC. | Oak Hill | FL | — | ◇ UNVERIFIED |
| OGOhio Gratings INC | Ridgeland | SC | — | ◇ UNVERIFIED |
| OIOkon INC | Lakewood | CO | — | ◇ UNVERIFIED |
| OWOld Western Paint CO INC | Denver | CO | — | ◇ UNVERIFIED |
| OTOmaha Transloading Corporation | Omaha | NE | — | ◇ UNVERIFIED |
| OCOmega Coating | El Dorado | KS | — | ◇ UNVERIFIED |
| OSOmnova Solutions, INC. | Dalton | GA | — | ◇ UNVERIFIED |
| OCOpt CO | Gilbert | AZ | — | ◇ UNVERIFIED |
| OCOrange County Plating CO INC | Orange | CA | — | ◇ UNVERIFIED |
| OCOrange County Powdercoating Co.,inc. | Orange | CA | — | ◇ UNVERIFIED |
| OSOregon State Penitentiary | Salem | OR | — | ◇ UNVERIFIED |
| OTOregon Tread Rubber Company | Eugene | OR | — | ◇ UNVERIFIED |
 Organic Dyes and Pigments | Providence | RI | — | ◇ UNVERIFIED |
| OIOrly International INC | Van Nuys | CA | — | ◇ UNVERIFIED |
| OBOsprey Biotechnics | Sarasota | FL | — | ◇ UNVERIFIED |
| OPOvation Polymers | Medina | OH | — | ◇ UNVERIFIED |
| OPOvation Polymer Technology and Engineered Materials | Medina | OH | — | ◇ UNVERIFIED |
| OMOzark Materials, LLC | Montgomery | AL | — | ◇ UNVERIFIED |
| OMOzark Materials, LLC | Marion | IN | — | ◇ UNVERIFIED |
| OMOzark Materials, Llc, an Ingevity Company | Childress | TX | — | ◇ UNVERIFIED |
| PBPacific Biodiesel INC | Kahului | HI | — | ◇ UNVERIFIED |
| PLPactiv LLC | Bedford Park | IL | — | ◇ UNVERIFIED |
| PPPactiv Packaging INC | Mineral Wells | WV | — | ◇ UNVERIFIED |
| PIPaintco INC | Saint Louis | MO | — | ◇ UNVERIFIED |
| PSPainters Supply and Equipment CO | Jackson | MI | — | ◇ UNVERIFIED |
| PSPaint Steel Structure | Wilmington | CA | — | ◇ UNVERIFIED |
| PEPampa Energy Center | Pampa | TX | — | ◇ UNVERIFIED |
| PCPan Chemical CORP | Hawthorne | NJ | — | ◇ UNVERIFIED |
| PIParatronix Incorporated | Attleboro | MA | — | ◇ UNVERIFIED |
| PCParker Coatings INC | Green Bay | WI | — | ◇ UNVERIFIED |
| PPParker Paint Manufacturing CO INC | Tacoma | WA | — | ◇ UNVERIFIED |
| PCParks Corporation | Somerset | MA | — | ◇ UNVERIFIED |
| PCParts Cleaning Technologies LLC | Indianapolis | IN | — | ◇ UNVERIFIED |
| PPPassonno Paints | Watervliet | NY | — | ◇ UNVERIFIED |
| PPPatriot Paint, LLC | Portland | IN | — | ◇ UNVERIFIED |
| PFPcs for People | Saint Paul | MN | — | ◇ UNVERIFIED |
| PPPearl Paints North America INC | Harvey | IL | — | ◇ UNVERIFIED |
| PFPeden Facility | Fort Worth | TX | — | ◇ UNVERIFIED |
