| OIOmni Industrial Solutions, INC | Longview | TX | — | ◇ UNVERIFIED |
| OSOmnova Solutions INC. | Akron | OH | — | ◇ UNVERIFIED |
| OSOmnova Solutions INC. - Calhoun Latex Plant | Calhoun | GA | — | ◇ UNVERIFIED |
| OSOmya Specialty Materials | Long Beach | CA | — | ◇ UNVERIFIED |
| ONOndeo Nalco CO | Ellwood City | PA | — | ◇ UNVERIFIED |
| OUOne Up Mfg 3 | Gardena | CA | — | ◇ UNVERIFIED |
| OOnscent/norwood | Norwood | NJ | — | ◇ UNVERIFIED |
| OBOpen Book Extracts | Roxboro | NC | — | ◇ UNVERIFIED |
| ODOpen Door Packaging | Chino | CA | — | ◇ UNVERIFIED |
| OBOregon Basin - Polyacrylamide Plant | Park | WY | — | ◇ UNVERIFIED |
| OGOrica Ground Support | Grand Junction | CO | — | ◇ UNVERIFIED |
| OBOriginal Balboa Caregivers INC | Chatsworth | CA | — | ◇ UNVERIFIED |
| OSOrion Safety Products | Peru | IN | — | ◇ UNVERIFIED |
| OAOxbow Activated Carbon LLC | Emlenton | PA | — | ◇ UNVERIFIED |
| PDPacific Diazo Prods INC Fontana | Fontana | CA | — | ◇ UNVERIFIED |
 Pacific Industrial Development Corporation | Spartanburg | SC | — | ◇ UNVERIFIED |
| PIPanaceanano INC | Pasadena | CA | — | ◇ UNVERIFIED |
| PSPan-glo St Louis-trenton Avenue | Saint Louis | MO | — | ◇ UNVERIFIED |
| PMPark Metallurgical CORP | Detroit | MI | — | ◇ UNVERIFIED |
| PRParviz Rahimian and Shohreh Rashti, Trustees of THE RAHIMIAN FAMILY TRUST, dated | City of Santa Clarita (area of Valencia) | CA | — | ◇ UNVERIFIED |
| PGPci Group | Fort Mill | SC | — | ◇ UNVERIFIED |
| PTPellucere Technologies INC | Corvallis | OR | — | ◇ UNVERIFIED |
| PIPencco, INC. | Bardwell | TX | — | ◇ UNVERIFIED |
| PCPenray Cos INC | Wheeling | IL | — | ◇ UNVERIFIED |
| PRPeople's Refinery-hero Oak LLC | Santa Ana | CA | — | ◇ UNVERIFIED |
| PPerimeter | Santa Maria | CA | — | ◇ UNVERIFIED |
| PSPerimeter Solutions LP | Lancaster | CA | — | ◇ UNVERIFIED |
| PSPerimeter Solutions LP | Atwater | CA | — | ◇ UNVERIFIED |
| PSPerimeter Solutions - Mountain Home Seat Base | Mountain Home | ID | — | ◇ UNVERIFIED |
| POPerma-fix of South Georgia | Valdosta | GA | — | ◇ UNVERIFIED |
| PSPerrigo Sales CORP | Omaha | NE | — | ◇ UNVERIFIED |
| PCPetes Coolant Recycling | Orlando | FL | — | ◇ UNVERIFIED |
| PCPetra Chemical CO | Dallas | TX | — | ◇ UNVERIFIED |
| PRPetrochemical Refining | Freeport | TX | — | ◇ UNVERIFIED |
| PCPetro-con Chemical CO | Bronx | NY | — | ◇ UNVERIFIED |
| PCPetrolite Corporation | Bakersfield | CA | — | ◇ UNVERIFIED |
| PAPhoenix Alloy Solutions, LLC | Riverside | CA | — | ◇ UNVERIFIED |
| PPPhoenix Products CO | Terryville | CT | — | ◇ UNVERIFIED |
| PSPhoenix Solutions, LLC | Morgantown | WV | — | ◇ UNVERIFIED |
| PTPicnic Time Family of Brands INC | Moorpark | CA | — | ◇ UNVERIFIED |
| PIPilgrim International, INC. | Middlebury | IN | — | ◇ UNVERIFIED |
| PIPka INC Prokrete Ind | Denver | CO | — | ◇ UNVERIFIED |
| PNPlant Nutrient Operations, LLC | Montgomery | AL | — | ◇ UNVERIFIED |
| PPlaze | Dalton | GA | — | ◇ UNVERIFIED |
| PGPlaze Georgia (apollo Technologies, Inc) | Smyrna | GA | — | ◇ UNVERIFIED |
| PIPlaze INC | Saint Louis | MO | — | ◇ UNVERIFIED |
| PAPlz Aeroscience | Dalton | GA | — | ◇ UNVERIFIED |
| PIPolychemie INC | Pittsburg | CA | — | ◇ UNVERIFIED |
| PIPolychemie INC | Longview | WA | — | ◇ UNVERIFIED |
| PIPolychemie INC | Dolton | IL | — | ◇ UNVERIFIED |
