| NTNanophase Technologies CORP | Burr Ridge | IL | — | ◇ UNVERIFIED |
| NINanosys Incs | Milpitas | CA | — | ◇ UNVERIFIED |
| NLNaprotec LLC | Chattanooga | TN | — | ◇ UNVERIFIED |
| NCNational Chloride CO of America | Amboy | CA | — | ◇ UNVERIFIED |
| NINational Interchem CORP | Chicago | IL | — | ◇ UNVERIFIED |
| NSNatural Soda | Rifle | CO | — | ◇ UNVERIFIED |
| NCNch Corporation | Rancho Mirage | CA | — | ◇ UNVERIFIED |
| NRNeo Rare Metals (ok), LLC. | Quapaw | OK | — | ◇ UNVERIFIED |
| NNewchem | New Cumberland | WV | — | ◇ UNVERIFIED |
| NLNew Life Cleaners | Brentwood | CA | — | ◇ UNVERIFIED |
| NLNexpera LLC - Nexpera-burnside Facility | Darrow | LA | — | ◇ UNVERIFIED |
| NIN.F. International, Inc | Lawrenceville | GA | — | ◇ UNVERIFIED |
| NCNorth Coast Chemical CO | Seattle | WA | — | ◇ UNVERIFIED |
| NCNorthern Consulting Communication & Equi | Memphis | TN | — | ◇ UNVERIFIED |
| NPNouryon Pulp and Performance Chemicals LLC | Augusta | GA | — | ◇ UNVERIFIED |
| NDNovaphos Development LLC | Fort Meade | FL | — | ◇ UNVERIFIED |
| NNutrablend | Madera | CA | — | ◇ UNVERIFIED |
| NNuturell | Wilmington | DE | — | ◇ UNVERIFIED |
| OPOaklite Products, INC | La Mirada | CA | — | ◇ UNVERIFIED |
| OCOasis Creative Design Company, LLC | Alamogordo | NM | — | ◇ UNVERIFIED |
| OCOasis Creative Design Company, LLC | Alamogordo | NM | — | ◇ UNVERIFIED |
| OIObenauf's, Inc. | Peck | ID | — | ◇ 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 |
| OAOci Alabama LLC | Decatur | AL | — | ◇ UNVERIFIED |
| OAOhio Aluminum Chemicals LLC | Hamilton | OH | — | ◇ UNVERIFIED |
| OMOklahoma Materials Recycling | Atoka | OK | — | ◇ UNVERIFIED |
| OSOklahoma Steel Castings | Tulsa | OK | — | ◇ UNVERIFIED |
| OBOld Bridge Chemicals INC | Old Bridge Twp | NJ | — | ◇ UNVERIFIED |
| OBOlin - Blue Cube Operations, LLC | Plaquemine | LA | — | ◇ UNVERIFIED |
| OCOlin CORP Lake Charles Plant | Westlake | LA | — | ◇ UNVERIFIED |
| OCOlin Corporation | Manchester | TN | — | ◇ UNVERIFIED |
| OCOmega Chemical CORP Omega Reco | Whittier | CA | — | ◇ UNVERIFIED |
| OEOmg Electronic Chemicals LLC | Newark | NJ | — | ◇ UNVERIFIED |
| OIOmya, INC. (n7709) | Escanaba | MI | — | ◇ UNVERIFIED |
| OPOnline Packaging INC | Plover | WI | — | ◇ UNVERIFIED |
| OTOn Target Staffing, LLC | Auburndale | FL | — | ◇ UNVERIFIED |
| OCOrange Carbon Black Plant | Orange | TX | — | ◇ UNVERIFIED |
| OFOrganic Filling Solutions LLC | Chatsworth | CA | — | ◇ UNVERIFIED |
| OEOrion Engineered Carbons, LLC. | Franklin | LA | — | ◇ UNVERIFIED |
| OEOrion Engineered Carbons LLC - Ivanhoe Carbon Black Plant | Franklin | LA | — | ◇ UNVERIFIED |
| OCOur Cleaners | Whittier | CA | — | ◇ UNVERIFIED |
| OCOverdale CORP | Alsip | IL | — | ◇ UNVERIFIED |
| OEOxbow Energy Solutions | Texas City | TX | — | ◇ UNVERIFIED |
| PPP4 Production LLC (tv Facility) | Soda Springs | ID | — | ◇ UNVERIFIED |
| PCPacific Compounding Pharmacy | Stockton | CA | — | ◇ UNVERIFIED |
 Pacific Industrial Development Corporation | Spartanburg | SC | — | ◇ UNVERIFIED |
