| NPNova Pressroom Products | Jacksonville | FL | — | ◇ UNVERIFIED |
| NINoveon INC | Bainbridge Township | OH | — | ◇ UNVERIFIED |
| NBNovozymes Biologicals INC - South Broad Street | Salem | VA | — | ◇ UNVERIFIED |
| NCNubrite Chemical CO R-3 | Taunton | MA | — | ◇ UNVERIFIED |
| NINuset Industries, Orrco, 02 Bl (nuseti) | Salt Lake City | UT | — | ◇ UNVERIFIED |
| NBNutrition & Biosciences USA 1, Llc, Midland | Midland | MI | — | ◇ UNVERIFIED |
| NBNutrition & Biosciences USA 1 LLC - Plaquemine Methocel | Plaquemine | LA | — | ◇ UNVERIFIED |
| OROak Ridge Foam & Coating Systems INC | Green Lake | WI | — | ◇ UNVERIFIED |
| OFOberon Fuels Kershaw Facility | Brawley | CA | — | ◇ UNVERIFIED |
| OObiter | Champaign | IL | — | ◇ UNVERIFIED |
| OCO'brien CORP | Brunswick | GA | — | ◇ UNVERIFIED |
| OCOccidental Chemical CORP Sauget Plant | Sauget | IL | — | ◇ UNVERIFIED |
| OROcean Reef Pools INC. | Oak Hill | FL | — | ◇ UNVERIFIED |
| OGOhio Gratings INC | Ridgeland | SC | — | ◇ UNVERIFIED |
| OIOkon INC | Lakewood | CO | — | ◇ UNVERIFIED |
| OWOld Western Paint CO INC | Denver | CO | — | ◇ UNVERIFIED |
| OTOmaha Transloading Corporation | Omaha | NE | — | ◇ UNVERIFIED |
| OCOmega Coating | El Dorado | KS | — | ◇ UNVERIFIED |
| OSOmnova Solutions, INC. | Dalton | GA | — | ◇ UNVERIFIED |
| OCOpt CO | Gilbert | AZ | — | ◇ UNVERIFIED |
| OCOrange County Plating CO INC | Orange | CA | — | ◇ UNVERIFIED |
| OCOrange County Powdercoating Co.,inc. | Orange | CA | — | ◇ UNVERIFIED |
| OSOregon State Penitentiary | Salem | OR | — | ◇ UNVERIFIED |
| OTOregon Tread Rubber Company | Eugene | OR | — | ◇ UNVERIFIED |
 Organic Dyes and Pigments | Providence | RI | — | ◇ UNVERIFIED |
| OIOrly International INC | Van Nuys | CA | — | ◇ UNVERIFIED |
| OBOsprey Biotechnics | Sarasota | FL | — | ◇ UNVERIFIED |
| OPOvation Polymers | Medina | OH | — | ◇ UNVERIFIED |
| OPOvation Polymer Technology and Engineered Materials | Medina | OH | — | ◇ UNVERIFIED |
| OMOzark Materials, LLC | Montgomery | AL | — | ◇ UNVERIFIED |
| OMOzark Materials, LLC | Marion | IN | — | ◇ UNVERIFIED |
| OMOzark Materials, Llc, an Ingevity Company | Childress | TX | — | ◇ UNVERIFIED |
| PBPacific Biodiesel INC | Kahului | HI | — | ◇ UNVERIFIED |
| PLPactiv LLC | Bedford Park | IL | — | ◇ UNVERIFIED |
| PPPactiv Packaging INC | Mineral Wells | WV | — | ◇ UNVERIFIED |
| PIPaintco INC | Saint Louis | MO | — | ◇ UNVERIFIED |
| PSPainters Supply and Equipment CO | Jackson | MI | — | ◇ UNVERIFIED |
| PSPaint Steel Structure | Wilmington | CA | — | ◇ UNVERIFIED |
| PEPampa Energy Center | Pampa | TX | — | ◇ UNVERIFIED |
| PCPan Chemical CORP | Hawthorne | NJ | — | ◇ UNVERIFIED |
| PIParatronix Incorporated | Attleboro | MA | — | ◇ UNVERIFIED |
| PCParker Coatings INC | Green Bay | WI | — | ◇ UNVERIFIED |
| PPParker Paint Manufacturing CO INC | Tacoma | WA | — | ◇ UNVERIFIED |
| PCParks Corporation | Somerset | MA | — | ◇ UNVERIFIED |
| PCParts Cleaning Technologies LLC | Indianapolis | IN | — | ◇ UNVERIFIED |
| PPPassonno Paints | Watervliet | NY | — | ◇ UNVERIFIED |
| PPPatriot Paint, LLC | Portland | IN | — | ◇ UNVERIFIED |
| PFPcs for People | Saint Paul | MN | — | ◇ UNVERIFIED |
| PPPearl Paints North America INC | Harvey | IL | — | ◇ UNVERIFIED |
| PFPeden Facility | Fort Worth | TX | — | ◇ UNVERIFIED |
