| OCOrange Carbon Black Plant | Orange | TX | — | ◇ UNVERIFIED |
| OBOregon Basin - Polyacrylamide Plant (merit Energy Company) | Cody | WY | — | ◇ UNVERIFIED |
| OSOrenco Systems | Roseburg | OR | — | ◇ UNVERIFIED |
| OEOrion Engineered Carbons, LLC. | Franklin | LA | — | ◇ UNVERIFIED |
| OEOrion Engineered Carbons LLC - Ivanhoe Carbon Black Plant | Franklin | LA | — | ◇ UNVERIFIED |
| OEO'Tech East, LLC | Auburn | MA | — | ◇ UNVERIFIED |
| OEOxbow Energy Solutions | Texas City | TX | — | ◇ UNVERIFIED |
| OIOxford Inustries of Connecticut, INC. | New Britain | CT | — | ◇ 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 |
| PPPacific Polymers | Galt | CA | — | ◇ UNVERIFIED |
| PSPacific Surf Glass | San Diego | CA | — | ◇ UNVERIFIED |
| PLPactiv LLC | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| PLPactiv LLC | Bedford Park | IL | — | ◇ UNVERIFIED |
| PPPactiv Packaging INC | Mineral Wells | WV | — | ◇ UNVERIFIED |
| PPPact Pharma INC | Riverside | CA | — | ◇ UNVERIFIED |
 Pajarito Powder | Albuquerque | NM | — | ◇ UNVERIFIED |
| PMPalacios Marine and Industrial | Point Comfort | TX | — | ◇ UNVERIFIED |
| PDPampa Development & Manufacturing Center | Pampa | TX | — | ◇ UNVERIFIED |
| PAPan American Plastics INC | Commerce | CA | — | ◇ UNVERIFIED |
| PGParamount Global, INC. | Jurupa Valley | CA | — | ◇ UNVERIFIED |
| PAParson Adhesives Incorporated | Evansville | IN | — | ◇ UNVERIFIED |
| PMParvus Microstructures | Edina | MN | — | ◇ UNVERIFIED |
| PBPasadena Bio Collaborative Incubator | Pasadena | CA | — | ◇ UNVERIFIED |
| PPPasadena Plastics Complex | Pasadena | TX | — | ◇ UNVERIFIED |
| PCPaslode CO | Covington | TN | — | ◇ UNVERIFIED |
| PCPaxar Corporation | Sayre | PA | — | ◇ UNVERIFIED |
| PPPeak Performance Compounding LLC | Leominster | MA | — | ◇ UNVERIFIED |
| PFPeden Facility | Fort Worth | TX | — | ◇ UNVERIFIED |
| PIP&e INC | Altamonte Springs | FL | — | ◇ UNVERIFIED |
| PSPencco Sealy | Sealy | TX | — | ◇ UNVERIFIED |
| PTPenske Truck Leasing CO LP | New Castle | DE | — | ◇ 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 |
| PSPerpetual Screen Printing INC | Los Angeles | CA | — | ◇ 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 |
| PCPetra Chemical CO | Dallas | TX | — | ◇ UNVERIFIED |
| P6Phillips 66 Caustic Scrubber Material | New Castle | DE | — | ◇ UNVERIFIED |
| PBPhillips Bros Plastics INC | Gardena | CA | — | ◇ UNVERIFIED |
| POPhotography Outlet Dba Backdrop Outlet | Oceanside | CA | — | ◇ UNVERIFIED |
| PSPhoto Systems INC | Dexter | MI | — | ◇ UNVERIFIED |
| PLPiedmont Lithium Carolinas, INC. - Kings Moun ** Inactive ** | Kings Mountain | NC | — | ◇ UNVERIFIED |
| PSPierce & Stevens CORP | Seabrook | NH | — | ◇ UNVERIFIED |
 Pierson Industries, INC. | Rockaway | NJ | — | ◇ UNVERIFIED |
| PIPilgrim Innovative Plastics LLC | Plymouth | MA | — | ◇ UNVERIFIED |
| PAPioneer Americas INC | Tacoma | WA | — | ◇ UNVERIFIED |
| PAPioneer Americas LLC | Henderson | NV | — | ◇ UNVERIFIED |
| PAPioneer Americas LLC Dba Olin Chlor Alkali Tracy | Tracy | CA | — | ◇ UNVERIFIED |
| PIPiper Industries INC Wire Products Div | Memphis | TN | — | ◇ UNVERIFIED |
| PPPittsfield Plastics Engineering LLC | Pittsfield | MA | — | ◇ UNVERIFIED |
| PIPixel Imaging | Vista | CA | — | ◇ UNVERIFIED |
| PCP&K Custom Acrylics, Inc. | Malden | MA | — | ◇ UNVERIFIED |
| PTPlanter Technology INC | Hayward | CA | — | ◇ UNVERIFIED |
| PCPlastic Compounders, INC. | Cambridge | OH | — | ◇ UNVERIFIED |
| PDPlastic Design, INC. | N Chelmsford | MA | — | ◇ UNVERIFIED |
| PIPlastic Industries, INC. | Preston | ID | — | ◇ UNVERIFIED |
| PIPlastic Innovations, LLC | Jurupa Valley | CA | — | ◇ UNVERIFIED |
| PMPlastic Materials, INC | Macedonia | OH | — | ◇ UNVERIFIED |
| PMPlastic Molded Components | Cypress | CA | — | ◇ UNVERIFIED |
| PRPlastic Recycling INC | Indianapolis | IN | — | ◇ UNVERIFIED |
| PRPlastic Resources, Inc. | Cartersville | GA | — | ◇ UNVERIFIED |
| PRPlastic Restoration | Saint Elmo | IL | — | ◇ UNVERIFIED |
| PFPlastics Forming Enterprises | Merrimack | NH | — | ◇ UNVERIFIED |
| PSPlastic Solutions INC. | Bayport | NY | — | ◇ UNVERIFIED |
| PRPlastics Research CORP | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
 Plastic Technologies of Vermont, INC | Londonderry | NH | — | ◇ UNVERIFIED |
| PTPlastic Trends INC | Shelby Twp | MI | — | ◇ UNVERIFIED |
| PIPlastipak INC | Havre De Grace | MD | — | ◇ UNVERIFIED |
| PPPlastisol Products INC | Addison | IL | — | ◇ UNVERIFIED |
| PTPlymouth Technology, Inc. | Rochester Hills | MI | — | ◇ UNVERIFIED |
| PIP.m.c., INC. | Calhoun | GA | — | ◇ UNVERIFIED |
| POPmc Organometallix | Axis | AL | — | ◇ UNVERIFIED |
| PIPolyair Inter Pack INC. | Atlanta | GA | — | ◇ UNVERIFIED |
| PLPolyCap LLC | Lebanon | VA | — | ◇ UNVERIFIED |
| PIPolycell Int'l CORP | Cerritos | CA | — | ◇ UNVERIFIED |
| PLPolyclad Laminates | Millbury | MA | — | ◇ UNVERIFIED |
| PPPolyethylene Plant | Deer Park | TX | — | ◇ UNVERIFIED |
| PCPolyexe Corporation | Brentwood | NH | — | ◇ UNVERIFIED |
| PDPolyflex Division of Flex Technologies | Baltic | OH | — | ◇ UNVERIFIED |
| PIPolygard INC | Tampa | FL | — | ◇ UNVERIFIED |
| PIPolygard INC | Marietta | GA | — | ◇ UNVERIFIED |
| PIPolygard INC Acworth | Acworth | GA | — | ◇ UNVERIFIED |
| PMPoly Marketing & Associates INC | Houston | TX | — | ◇ UNVERIFIED |
| PIPolymera INC | Hebron | OH | — | ◇ UNVERIFIED |
| PCPolymer Concentrates | Clinton | MA | — | ◇ UNVERIFIED |
| PIPolymeric Interconnect | Butte | MT | — | ◇ UNVERIFIED |
| PRPolymeric Resources CORP | Wayne | NJ | — | ◇ UNVERIFIED |
| PPPolymer Processing Institute | Fairfield | NJ | — | ◇ UNVERIFIED |
| PGPolymers Group Olybilt Lab | Houston | TX | — | ◇ UNVERIFIED |
| PTPolymer Technologies | Nashua | NH | — | ◇ UNVERIFIED |
| PTPolymer Technologies LLC | Mansfield | TX | — | ◇ UNVERIFIED |
| PMPoly Molding CORP. | Haskell | NJ | — | ◇ UNVERIFIED |
