| OCOliver Chemical CO INC | Cincinnati | OH | — | ◇ UNVERIFIED |
| OCOlson Companies, INC. | West Fork | AR | — | ◇ UNVERIFIED |
| OTOmaha Transloading Corporation | Omaha | NE | — | ◇ UNVERIFIED |
| OEOmega Extruding CORP of Ca | Compton | CA | — | ◇ UNVERIFIED |
| OHOmega Henderson Terminal | Henderson | KY | — | ◇ UNVERIFIED |
| OOOmni Oxide CORP Ohio Oxide Div | Lancaster | OH | — | ◇ UNVERIFIED |
| OOOmni Oxide Georgia Oxide | Lithonia | GA | — | ◇ UNVERIFIED |
| OMOmnisource - Montvale | Montvale | VA | — | ◇ UNVERIFIED |
| OSOmnisource Sturgis | Sturgis | MI | — | ◇ UNVERIFIED |
| OSOmnova Solutions INC | Calhoun | GA | — | ◇ UNVERIFIED |
| OSOmnova Solutions, INC. | Dalton | GA | — | ◇ UNVERIFIED |
| OIOmya, INC. (n7709) | Escanaba | MI | — | ◇ UNVERIFIED |
| O7Ontario 76 | Ontario | CA | — | ◇ UNVERIFIED |
| OCOrange Carbon Black Plant | Orange | TX | — | ◇ UNVERIFIED |
| OMOrasis Medical | Laguna Hills | CA | — | ◇ UNVERIFIED |
| OBOregon Basin - Polyacrylamide Plant (merit Energy Company) | Cody | WY | — | ◇ UNVERIFIED |
| OSOrenco Systems | Roseburg | OR | — | ◇ UNVERIFIED |
 Organic Dyes and Pigments | Providence | RI | — | ◇ UNVERIFIED |
| OBOrigin Baltimore Recycling, LLC | Curtis Bay | MD | — | ◇ UNVERIFIED |
| OEOrion Engineered Carbons, LLC. | Franklin | LA | — | ◇ UNVERIFIED |
| OEOrion Engineered Carbons LLC - Ivanhoe Carbon Black Plant | Franklin | LA | — | ◇ UNVERIFIED |
| OBOsprey Biotechnics | Sarasota | FL | — | ◇ UNVERIFIED |
| OEO'Tech East, LLC | Auburn | MA | — | ◇ UNVERIFIED |
| OEOxbow Energy Solutions | Texas City | TX | — | ◇ UNVERIFIED |
| OIOxford Immunotec USA Marlborough | Marlborough | MA | — | ◇ UNVERIFIED |
| OIOxford Inustries of Connecticut, INC. | New Britain | CT | — | ◇ UNVERIFIED |
| OOOxy Occidental Petroleum Corporation | Denver | CO | — | ◇ UNVERIFIED |
| OVOxy Vinyls LP - Deer Park Vcm Facility | Deer Park | TX | — | ◇ UNVERIFIED |
| PSP2 Sciences INC. | Naugatuck | CT | — | ◇ UNVERIFIED |
| PPP4 Production LLC (tv Facility) | Soda Springs | ID | — | ◇ UNVERIFIED |
| PPPacheco Plaza Cleaners | Novato | CA | — | ◇ UNVERIFIED |
| PBPacific Biodiesel INC | Kahului | HI | — | ◇ UNVERIFIED |
| PCPacific Compounding Pharmacy | Stockton | CA | — | ◇ UNVERIFIED |
| PHPacific Hydrotech Corporation | Mission Viejo | CA | — | ◇ UNVERIFIED |
 Pacific Industrial Development Corporation | Spartanburg | SC | — | ◇ UNVERIFIED |
| PLPacific Light Technologies | Portland | OR | — | ◇ UNVERIFIED |
| PPPacific Polymers | Galt | CA | — | ◇ UNVERIFIED |
| PSPacific Surf Glass | San Diego | CA | — | ◇ UNVERIFIED |
| PLPactiv LLC | Bedford Park | IL | — | ◇ UNVERIFIED |
| PLPactiv LLC | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| PPPactiv Packaging INC | Mineral Wells | WV | — | ◇ UNVERIFIED |
| PPPact Pharma INC | Riverside | CA | — | ◇ UNVERIFIED |
 Pajarito Powder | Albuquerque | NM | — | ◇ UNVERIFIED |
| PTPAK Technologies Holding Company Inc. | Milwaukee | WI | — | ◇ UNVERIFIED |
| PMPalacios Marine and Industrial | Point Comfort | TX | — | ◇ UNVERIFIED |
| PPPalmer Paving CORP | Springfield | MA | — | ◇ UNVERIFIED |
| PPPalmer Paving CORP | Palmer | MA | — | ◇ UNVERIFIED |
| PDPampa Development & Manufacturing Center | Pampa | TX | — | ◇ UNVERIFIED |
| PAPan American Fertilizer | Guanica | PR | — | ◇ UNVERIFIED |
| PAPan American Plastics INC | Commerce | CA | — | ◇ UNVERIFIED |
| PMPandora Methanol LLC | Nederland | TX | — | ◇ UNVERIFIED |
| PPParallel Products of Florida, INC. | Bartow | FL | — | ◇ UNVERIFIED |
| PGParamount Global, INC. | Jurupa Valley | CA | — | ◇ UNVERIFIED |
| PPParamount Petr CORP | Long Beach | CA | — | ◇ UNVERIFIED |
| PCParts Cleaning Technologies LLC | Indianapolis | IN | — | ◇ UNVERIFIED |
| PMParvus Microstructures | Edina | MN | — | ◇ UNVERIFIED |
| PBPasadena Bio Collaborative Incubator | Pasadena | CA | — | ◇ UNVERIFIED |
| PPPasadena Plant | Pasadena | TX | — | ◇ UNVERIFIED |
| PPPasadena Plastics Complex | Pasadena | TX | — | ◇ UNVERIFIED |
| PCPaslode CO | Covington | TN | — | ◇ UNVERIFIED |
| PCPass Canyon | Prescott Valley | AZ | — | ◇ UNVERIFIED |
| PAPatriot Allied Solutions LLC | Hagerman | ID | — | ◇ UNVERIFIED |
| PBPatterson Brother's Lighting INC | Lakeside | CA | — | ◇ UNVERIFIED |
| PUPat Uchida Property | Kelso | WA | — | ◇ UNVERIFIED |
| PMPaul Matsumoto | Rio Linda | CA | — | ◇ UNVERIFIED |
| PTPaulsboro Technical Center | Paulsboro | NJ | — | ◇ UNVERIFIED |
| PPPcs Phosphate Company Inc-joplin Plant | Joplin | MO | — | ◇ UNVERIFIED |
| PPPeak Performance Compounding LLC | Leominster | MA | — | ◇ UNVERIFIED |
| PFPeden Facility | Fort Worth | TX | — | ◇ UNVERIFIED |
| PEPe Ell Hulk Hauling | Aberdeen | WA | — | ◇ UNVERIFIED |
| PAPeerless Alloy INC | Denver | CO | — | ◇ UNVERIFIED |
| PIP&e INC | Altamonte Springs | FL | — | ◇ UNVERIFIED |
| PRPelican Refining CO LLC | Lake Charles | LA | — | ◇ UNVERIFIED |
| PTPellucere Technologies | Springdale | AR | — | ◇ UNVERIFIED |
| PCPemco Corporation | Baltimore | MD | — | ◇ UNVERIFIED |
| PSPencco Sealy | Sealy | TX | — | ◇ UNVERIFIED |
 Penco Products INC | Vicksburg | MS | — | ◇ UNVERIFIED |
| PPPennzoil Products CO. | Dickinson | TX | — | ◇ UNVERIFIED |
| PPPennzoil Products Company | Roosevelt | UT | — | ◇ UNVERIFIED |
| PQPennzoil Quaker State | Rouseville | PA | — | ◇ UNVERIFIED |
| PSPennzoil-quaker State CO Dba Sopus Products-portland | Portland | OR | — | ◇ UNVERIFIED |
| PTPenske Truck Leasing CO LP | New Castle | DE | — | ◇ UNVERIFIED |
| PCPerformance Construction LLC | Kissimmee | 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 |
| PDPermuthane Div of Stahl USA | Peabody | MA | — | ◇ UNVERIFIED |
| PTPeroxychem Tonawanda Plant | Tonawanda | NY | — | ◇ UNVERIFIED |
| PSPersonnel Services | Brenham | TX | — | ◇ UNVERIFIED |
| PRPeru Recycling Facility | Sparks | NV | — | ◇ UNVERIFIED |
| PCPeterson Chemical Technology, LLC | Fort Smith | AR | — | ◇ UNVERIFIED |
| PSPeterson Sys Intl | Duarte | CA | — | ◇ UNVERIFIED |
| PPPetoleum Product Supply, LLC | Guaynabo | PR | — | ◇ UNVERIFIED |
| PCPetra Chemical CO | Dallas | TX | — | ◇ UNVERIFIED |
| PRPetroleum Refinery | Kirtland | NM | — | ◇ UNVERIFIED |
| PCPetromax Carnegie Plt | Carnegie | PA | — | ◇ UNVERIFIED |
| PSPetro Star INC North Pole Refinery | North Pole | AK | — | ◇ UNVERIFIED |
| PSPetro Star INC Valdez Refinery | Valdez | AK | — | ◇ UNVERIFIED |
| PBPflaumer Brothers | Ewing | NJ | — | ◇ UNVERIFIED |
| PIPfp Industries LLC | Evanston | WY | — | ◇ UNVERIFIED |
