| 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 |
| PLPacific Light Technologies | Portland | OR | — | ◇ UNVERIFIED |
| PWPacific West Chemical CORP | Berkeley | CA | — | ◇ UNVERIFIED |
| PSPackers Sanitation Services INC | Portland | OR | — | ◇ UNVERIFIED |
| PSPackers Sanitation Services, INC. | Oakland | IA | — | ◇ UNVERIFIED |
| PSPackers Sanitation Services, INC. | Schuyler | NE | — | ◇ UNVERIFIED |
| PPPact Pharma INC | Riverside | CA | — | ◇ UNVERIFIED |
 Pajarito Powder | Albuquerque | NM | — | ◇ UNVERIFIED |
| PDPampa Development & Manufacturing Center | Pampa | TX | — | ◇ UNVERIFIED |
| PSParker Solvents Company, INC. | Little Rock | AR | — | ◇ UNVERIFIED |
| PCPaslode CO | Covington | TN | — | ◇ UNVERIFIED |
| PKPavestone - Katy Tx Plant | Katy | TX | — | ◇ UNVERIFIED |
| PSPencco Sealy | Sealy | TX | — | ◇ UNVERIFIED |
| PCPenray Companies | Elk Grove Village | IL | — | ◇ UNVERIFIED |
| PPPe Packaging LLC | Miami | FL | — | ◇ UNVERIFIED |
| PSPerimeter Solutions Burns Seat Base | Burns | OR | — | ◇ UNVERIFIED |
| PSPerimeter Solutions LP | Santa Rosa | CA | — | ◇ UNVERIFIED |
| PSPerimeter Solutions Ontario Seat Base | Ontario Heights | OR | — | ◇ UNVERIFIED |
| PTPeroxychem Tonawanda Plant | Tonawanda | NY | — | ◇ UNVERIFIED |
| PRPeru Recycling Facility | Sparks | NV | — | ◇ UNVERIFIED |
| PCPetra Chemical CO | Dallas | TX | — | ◇ UNVERIFIED |
| P6Phillips 66 Caustic Scrubber Material | New Castle | DE | — | ◇ UNVERIFIED |
| PSPhoto Systems INC | Dexter | MI | — | ◇ UNVERIFIED |
| PLPiedmont Lithium Carolinas, INC. - Kings Moun ** Inactive ** | Kings Mountain | NC | — | ◇ UNVERIFIED |
| PLPiedmont LLC | Gainesville | GA | — | ◇ UNVERIFIED |
| PAPioneer Americas INC | Tacoma | WA | — | ◇ UNVERIFIED |
| PAPioneer Americas LLC | Henderson | NV | — | ◇ UNVERIFIED |
| PAPioneer Americas LLC Dba Olin Chlor Alkali Tracy | Tracy | CA | — | ◇ UNVERIFIED |
| PJP J Maintenance Services INC | City of Industry | CA | — | ◇ UNVERIFIED |
| PTPlymouth Technology, Inc. | Rochester Hills | MI | — | ◇ UNVERIFIED |
| PIP.m.c., INC. | Calhoun | GA | — | ◇ UNVERIFIED |
| POPmc Organometallix | Axis | AL | — | ◇ UNVERIFIED |
| PIPotters Industries, INC. - Q-cel Facility | Augusta | GA | — | ◇ UNVERIFIED |
| PIPowerlab INC | Winston Salem | NC | — | ◇ UNVERIFIED |
| PIPpg Industries INC - Silica Plant | Westlake | LA | — | ◇ UNVERIFIED |
| PCPq CORP. | Baltimore | MD | — | ◇ UNVERIFIED |
| PCPq Corporation | South Gate | CA | — | ◇ UNVERIFIED |
| PCPq Corporation | Chester | PA | — | ◇ UNVERIFIED |
| PCPq Corporation | Joliet | IL | — | ◇ UNVERIFIED |
| PCPq Corporation - Pineville Plant | Pineville | LA | — | ◇ UNVERIFIED |
| PCPq Corporation - Sodium Silicate Plant | Augusta | GA | — | ◇ UNVERIFIED |
| PCPq Corporation -the | Saint Louis | MO | — | ◇ UNVERIFIED |
| PLPq LLC | Clarksville | IN | — | ◇ UNVERIFIED |
| PEPrecursor Energetics,inc | Santa Clara | CA | — | ◇ UNVERIFIED |
| PIPreserve Intl | Turlock | CA | — | ◇ UNVERIFIED |
| PTPrice Transfer Y265 | Carson | CA | — | ◇ UNVERIFIED |
| PEPride Enterprises Aci Sanitary Maint & Supply | Sneads | FL | — | ◇ UNVERIFIED |
| PLPrimetime Logistics, LLC | Orrville | OH | — | ◇ UNVERIFIED |
| PIPrism Inks INC | Sunnyvale | CA | — | ◇ UNVERIFIED |
| PRPrison Rehabilitative Pride Industries | Avon Park | FL | — | ◇ UNVERIFIED |
| PCProduction Chemical Manufacture INC Dba Production Car Care | Stockton | CA | — | ◇ UNVERIFIED |
