| NKNalco Kilgore Facility | Kilgore | TX | — | ◇ UNVERIFIED |
| NINataur INC. | Baltimore | MD | — | ◇ UNVERIFIED |
| NCNational Casein CO | Chicago | IL | — | ◇ UNVERIFIED |
| NCNational Casein of Nj CORP | Riverton | NJ | — | ◇ UNVERIFIED |
| NCNational Casein - Riverton, Nj | Riverton | NJ | — | ◇ UNVERIFIED |
| NPNational Peening Incorporated | Salem | VA | — | ◇ UNVERIFIED |
| NSNational Starch & Chemical CO | Meredosia | IL | — | ◇ UNVERIFIED |
| NTNational Trail Biodiesel Group LLC | Newton | IL | — | ◇ UNVERIFIED |
| NSNatl Starch & Chem Co/hazleton | Hazleton | PA | — | ◇ UNVERIFIED |
| NTNcs Test Lumber Mill | Chester | VA | — | ◇ UNVERIFIED |
| NBNelson Biotechnologies INC | Flagstaff | AZ | — | ◇ UNVERIFIED |
| NBNetzero Biofuels | Rock Tavern | NY | — | ◇ UNVERIFIED |
| NENew Eden Energy LLC | Saint Cloud | FL | — | ◇ UNVERIFIED |
| NENew England Biolabs, INC. | Rowley | MA | — | ◇ UNVERIFIED |
| NANewport Adhesive INC | Fountain Valley | CA | — | ◇ UNVERIFIED |
| NTNew Technology Plastics | Westminster | CA | — | ◇ UNVERIFIED |
| NMNewton Manufacturing Plant | Port Lavaca | TX | — | ◇ UNVERIFIED |
| NRNext Renewable Fuels Oregon, LLC | Clatskanie | OR | — | ◇ UNVERIFIED |
| NSNippon Shokubai America Industries Pasadena | Pasadena | TX | — | ◇ UNVERIFIED |
| NANorthern Adhesives, INC. | Maspeth | NY | — | ◇ UNVERIFIED |
| NPNorthern Products, INC. | Woonsocket | RI | — | ◇ UNVERIFIED |
| NENorthstar Elastomers LLC | Fridley | MN | — | ◇ UNVERIFIED |
| NPNorthwestern Plating Works | Chicago | IL | — | ◇ UNVERIFIED |
| NCNottingham Company | Atlanta | GA | — | ◇ UNVERIFIED |
| NCNouryon Chemicals LLC | Mays Landing | NJ | — | ◇ UNVERIFIED |
| NFNouryon Functional Chemicals Burt Plant | Burt | NY | — | ◇ UNVERIFIED |
| NPNouryon Pulp & Performance Chemicals | Duluth | GA | — | ◇ UNVERIFIED |
| NSNouryon Surface Chemistry LLC | Salisbury | NC | — | ◇ UNVERIFIED |
| NPNova Pressroom Products | Jacksonville | FL | — | ◇ UNVERIFIED |
| NBNovozymes Biologicals INC - South Broad Street | Salem | VA | — | ◇ UNVERIFIED |
| NANufarm Americas INC | Chicago Heights | IL | — | ◇ UNVERIFIED |
| NLNumake-2 LLC of Mn | Little Falls | MN | — | ◇ UNVERIFIED |
| NINuset Industries, Orrco, 02 Bl (nuseti) | Salt Lake City | UT | — | ◇ UNVERIFIED |
| NPNyacol Products Incorporated | Ashland | MA | — | ◇ UNVERIFIED |
| OCOak-bark CORP | Riegelwood | NC | — | ◇ UNVERIFIED |
| OCOatey Company | Cleveland | OH | — | ◇ UNVERIFIED |
| OFOberon Fuels Kershaw Facility | Brawley | CA | — | ◇ UNVERIFIED |
| OObiter | Champaign | IL | — | ◇ UNVERIFIED |
| OFOligo Factory INC | Holliston | MA | — | ◇ UNVERIFIED |
| OROlin Rd Crude Butadiene Ms Mc 43 44 | Beaumont | TX | — | ◇ UNVERIFIED |
| OCOliver Chemical CO INC | Cincinnati | OH | — | ◇ UNVERIFIED |
| OTOmaha Transloading Corporation | Omaha | NE | — | ◇ UNVERIFIED |
| OMOrasis Medical | Laguna Hills | CA | — | ◇ UNVERIFIED |
| OLOrbseal Llc-richmond | Richmond | MO | — | ◇ UNVERIFIED |
 Organic Dyes and Pigments | Providence | RI | — | ◇ UNVERIFIED |
| OBOsprey Biotechnics | Sarasota | FL | — | ◇ UNVERIFIED |
| OIOxford Immunotec USA Marlborough | Marlborough | MA | — | ◇ UNVERIFIED |
| OVOxy Vinyls LP - Deer Park Vcm Facility | Deer Park | TX | — | ◇ UNVERIFIED |
| PSP2 Sciences INC. | Naugatuck | CT | — | ◇ UNVERIFIED |
| PPPacheco Plaza Cleaners | Novato | CA | — | ◇ UNVERIFIED |
