| NENew England Biolabs, INC. | Rowley | MA | — | ◇ UNVERIFIED |
| NHNew Hartford BCS, LLC | New Hartford | NY | — | ◇ UNVERIFIED |
| NLNew Life Chemical Sodium Hydrosulfite LLC | Greenville | SC | — | ◇ UNVERIFIED |
| NTNew Technology Plastics | Westminster | CA | — | ◇ UNVERIFIED |
| NMNewton Manufacturing Plant | Port Lavaca | TX | — | ◇ UNVERIFIED |
| NRNext Renewable Fuels Oregon, LLC | Clatskanie | OR | — | ◇ UNVERIFIED |
| NBNightlife Body LLC | Los Angeles | CA | — | ◇ UNVERIFIED |
| NSNippon Shokubai America Industries Pasadena | Pasadena | TX | — | ◇ UNVERIFIED |
| NCNorfolk Crush, LLC | Norfolk | NE | — | ◇ UNVERIFIED |
| NFNorman, Fox & Co, Unit No. 1 | Vernon | CA | — | ◇ UNVERIFIED |
| NANorth American Bioindustries CORP | New Berlin | WI | — | ◇ UNVERIFIED |
| NDNorth Dakota Soybean Processors (ndsp) | Casselton | ND | — | ◇ UNVERIFIED |
| NANorthern Adhesives, INC. | Maspeth | NY | — | ◇ UNVERIFIED |
| NSNorth Shore Soap Factory INC | Waialua | HI | — | ◇ 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 |
| NLNovalent, LTD. | Greensboro | 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 |
| NANutrien Ag Solutions | Fresno | CA | — | ◇ UNVERIFIED |
| NPNyacol Products Incorporated | Ashland | MA | — | ◇ UNVERIFIED |
| NINytrex Industries, INC. | Macon | GA | — | ◇ UNVERIFIED |
| OCOak-bark CORP | Riegelwood | NC | — | ◇ UNVERIFIED |
| OFOberon Fuels Kershaw Facility | Brawley | CA | — | ◇ UNVERIFIED |
| OObiter | Champaign | IL | — | ◇ UNVERIFIED |
| OWOhio Warewashing Systems Inc. | Olmsted Township | OH | — | ◇ UNVERIFIED |
| OLOlay LLC | Cayey | PR | — | ◇ UNVERIFIED |
| OTOld Town Soap Co. | Landis | NC | — | ◇ UNVERIFIED |
| OWOle World Oils LLC | Ritzville | WA | — | ◇ 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 |
| OTOmaha Transloading Corporation | Omaha | NE | — | ◇ UNVERIFIED |
| OCOrange County Chemical Supply Drum Site | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| OMOrasis Medical | Laguna Hills | CA | — | ◇ UNVERIFIED |
| OGOregon Global Distribution | Medford | OR | — | ◇ UNVERIFIED |
 Organic Dyes and Pigments | Providence | RI | — | ◇ UNVERIFIED |
| OBOsprey Biotechnics | Sarasota | FL | — | ◇ UNVERIFIED |
| OSOutlaw Soaps, INC | Colfax | CA | — | ◇ UNVERIFIED |
| OGOxbow Greenwood, LLC | Greenwood | MS | — | ◇ UNVERIFIED |
| OIOxford Immunotec USA Marlborough | Marlborough | MA | — | ◇ UNVERIFIED |
| OVOxy Vinyls LP - Deer Park Vcm Facility | Deer Park | TX | — | ◇ UNVERIFIED |
