| NENew England Plastic | Norton | MA | — | ◇ UNVERIFIED |
| NFNew Functional Polymers | Saint Joseph | MO | — | ◇ UNVERIFIED |
| NHNew Hampshire Plastics, INC. | Manchester | NH | — | ◇ UNVERIFIED |
| NHNew Horizon Florida, INC Dba New Horizon Pm | Pinellas Park | FL | — | ◇ UNVERIFIED |
| NLNew Leaf Bio-fuel for Separation By Design | Fontana | CA | — | ◇ UNVERIFIED |
| NMNew Model Cleaners INC. | Boston | MA | — | ◇ UNVERIFIED |
| NPNew Pig CORP | Tipton | PA | — | ◇ UNVERIFIED |
| NANewport Adhesive INC | Fountain Valley | CA | — | ◇ UNVERIFIED |
| NTNew Technology Plastics | Westminster | CA | — | ◇ UNVERIFIED |
| NMNewton Manufacturing Plant | Port Lavaca | TX | — | ◇ UNVERIFIED |
| NHNexolve Holding Company - Quality Circle Facility | Huntsville | AL | — | ◇ UNVERIFIED |
| NLNexpera LLC - Nexpera-burnside Facility | Darrow | LA | — | ◇ UNVERIFIED |
| NRNextlife Recycling LLC | Frankfort | KY | — | ◇ UNVERIFIED |
| NRNext Renewable Fuels Oregon, LLC | Clatskanie | OR | — | ◇ UNVERIFIED |
| NPNiche Polymer LLC | Ravenswood | WV | — | ◇ UNVERIFIED |
| NPNickelson Plastics INC | Johnson City | TN | — | ◇ UNVERIFIED |
| NSNippon Shokubai America Industries Pasadena | Pasadena | TX | — | ◇ UNVERIFIED |
| NINl Industries | Pedricktown | NJ | — | ◇ UNVERIFIED |
| NMNoble Metal Services | Cranston | RI | — | ◇ UNVERIFIED |
| NFNohl Fabrication-a Division of the Gund Company | Milwaukee | WI | — | ◇ UNVERIFIED |
| NNNokia North America | Sunnyvale | CA | — | ◇ UNVERIFIED |
| NFNon Ferrous Recycling | South Plainfield | NJ | — | ◇ UNVERIFIED |
| NRNoranda Recycling INC | San Jose | CA | — | ◇ UNVERIFIED |
| NCNorphlet Chemical, INC. | Norphlet | AR | — | ◇ UNVERIFIED |
| NANorth American Composites Company | Nashville | TN | — | ◇ UNVERIFIED |
| NBNortheast Biodiesel Company LLC | Greenfield | MA | — | ◇ UNVERIFIED |
| NMNortheast Metal Processors, INC. | Plantersville | MS | — | ◇ UNVERIFIED |
| NANorthern Adhesives, INC. | Maspeth | NY | — | ◇ UNVERIFIED |
| NINorthern Industries | Coventry | RI | — | ◇ UNVERIFIED |
| NFNorthway Fuel LLC | Yonkers | NY | — | ◇ UNVERIFIED |
| NPNorthwestern Plating Works | Chicago | IL | — | ◇ UNVERIFIED |
| NNNorthwest Noble Metals | Spokane | WA | — | ◇ UNVERIFIED |
| NINorwesco, INC. | Hanford | CA | — | ◇ UNVERIFIED |
| NDNotre Dame Investors INC - Jennings Refinery | Jennings | LA | — | ◇ UNVERIFIED |
| NCNottingham Company | Atlanta | GA | — | ◇ UNVERIFIED |
| NCNouryon Chemicals LLC | Mays Landing | NJ | — | ◇ UNVERIFIED |
| NFNouryon Functional Chemicals Burt Plant | Burt | NY | — | ◇ UNVERIFIED |
| NPNouryon Pulp and Performance Chemicals LLC | Augusta | GA | — | ◇ UNVERIFIED |
| NPNouryon Pulp & Performance Chemicals | Duluth | GA | — | ◇ UNVERIFIED |
| NSNouryon Surface Chemistry LLC | Salisbury | NC | — | ◇ UNVERIFIED |
| NLNovacco LLC | Oceanside | CA | — | ◇ 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 |
| NENova Enterprises | Arden | NC | — | ◇ UNVERIFIED |
| NDNovaphos Development LLC | Fort Meade | FL | — | ◇ UNVERIFIED |
| NPNova Pressroom Products | Jacksonville | FL | — | ◇ UNVERIFIED |
| NLNovipax LLC | Reading | PA | — | ◇ UNVERIFIED |
| NINovoloop INC | Menlo Park | CA | — | ◇ 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 |
| NSNupak Solutions, INC. | Muskegon | MI | — | ◇ UNVERIFIED |
| NCNupla Corporation | Sun Valley | CA | — | ◇ UNVERIFIED |
| NINuset Industries, Orrco, 02 Bl (nuseti) | Salt Lake City | UT | — | ◇ UNVERIFIED |
| NLNustar Logistics L P | Pittsburg | CA | — | ◇ UNVERIFIED |
| NNutrablend | Madera | CA | — | ◇ UNVERIFIED |
| NANutrien Ag Solutions, INC. | Taylor | TX | — | ◇ UNVERIFIED |
| NPNuvida Plastic Technology | Edison | NJ | — | ◇ UNVERIFIED |
| NFNwpmg00002 Former Texaco Sunburst Works | Sunburst | MT | — | ◇ UNVERIFIED |
| NRNxtgen Resins LLC | Salt Lake City | UT | — | ◇ UNVERIFIED |
| NPNyacol Products Incorporated | Ashland | MA | — | ◇ UNVERIFIED |
| NDNyc Dept of Parks-columbia Smelting & Refining Works Site | Brooklyn | NY | — | ◇ UNVERIFIED |
 Nycote Laboratories CORP | North Hollywood | CA | — | ◇ UNVERIFIED |
| NGNzt Group | Sacramento | CA | — | ◇ UNVERIFIED |
| OCOak-bark CORP | Riegelwood | NC | — | ◇ UNVERIFIED |
| OEOak Engineered Products, INC. | Canonsburg | PA | — | ◇ UNVERIFIED |
| OCOatey CO | Newark | CA | — | ◇ UNVERIFIED |
| OFOberon Fuels Kershaw Facility | Brawley | CA | — | ◇ UNVERIFIED |
| OObiter | Champaign | IL | — | ◇ UNVERIFIED |
| OCOccidental Chemical CORP | Pottstown | PA | — | ◇ UNVERIFIED |
| OCOccidental Chemical CORP | Mobile | AL | — | ◇ UNVERIFIED |
| OCOccidental Chemical CORP | New Castle | DE | — | ◇ UNVERIFIED |
| OCOccidental Chemical CORP. | Niagara Falls | NY | — | ◇ UNVERIFIED |
| OCOccidental Chemical Corporation | Jersey City | NJ | — | ◇ UNVERIFIED |
| OCOccidental Chemical Corporation – Augusta Silicate Plant | Augusta | GA | — | ◇ UNVERIFIED |
| OROcean Reef Pools INC. | Oak Hill | FL | — | ◇ UNVERIFIED |
| OAOci Alabama LLC | Decatur | AL | — | ◇ UNVERIFIED |
| OIOcm Industries CORP. | Miami | FL | — | ◇ UNVERIFIED |
| OEOctal Extrusion Corporation | West Chester | OH | — | ◇ UNVERIFIED |
| OTOdessa Terminal | Odessa | TX | — | ◇ UNVERIFIED |
| OPOffen Petroleum INC | Commerce City | CO | — | ◇ UNVERIFIED |
| ODOffsite Demolition Charlton Pollard Neighborhood | Beaumont | TX | — | ◇ UNVERIFIED |
| OIOgs/cascade INC | Salem | OR | — | ◇ UNVERIFIED |
| OAOhio Aluminum Chemicals LLC | Hamilton | OH | — | ◇ UNVERIFIED |
| OMOklahoma Materials Recycling | Atoka | OK | — | ◇ UNVERIFIED |
| OSOklahoma Steel Castings | Tulsa | OK | — | ◇ UNVERIFIED |
| OIOkon INC | Lakewood | CO | — | ◇ UNVERIFIED |
| OBOld Bridge Chemicals INC | Old Bridge Twp | NJ | — | ◇ UNVERIFIED |
| OLOld Line Environmental, INC. | Curtis Bay | MD | — | ◇ UNVERIFIED |
| OMOld Monroe Rd Facility | Athens | GA | — | ◇ UNVERIFIED |
| OWOld Water Holdings, LLC | Wedowee | AL | — | ◇ UNVERIFIED |
| OROlein Recovery CORP | Yabucoa | PR | — | ◇ UNVERIFIED |
| OFOligo Factory INC | Holliston | MA | — | ◇ UNVERIFIED |
| OBOlin - Blue Cube Operations, LLC | Plaquemine | LA | — | ◇ UNVERIFIED |
| OCOlin CORP Lake Charles Plant | Westlake | LA | — | ◇ UNVERIFIED |
| OCOlin Corporation | Manchester | TN | — | ◇ UNVERIFIED |
| OROlin Rd Crude Butadiene Ms Mc 43 44 | Beaumont | TX | — | ◇ UNVERIFIED |
| OBOlive Bio LLC Dba Olviebio | Inglewood | CA | — | ◇ UNVERIFIED |
