| NCNottingham Company | Atlanta | GA | — | ◇ UNVERIFIED |
| NCNouryon Chemicals LLC | Mays Landing | NJ | — | ◇ UNVERIFIED |
| NFNouryon Functional Chemicals Burt Plant | Burt | NY | — | ◇ UNVERIFIED |
| NPNouryon Pulp & Performance Chemicals | Duluth | GA | — | ◇ UNVERIFIED |
| NSNouryon Surface Chemistry LLC | Salisbury | NC | — | ◇ UNVERIFIED |
| NPNova Pressroom Products | Jacksonville | FL | — | ◇ UNVERIFIED |
| NBNovozymes Biologicals INC - South Broad Street | Salem | VA | — | ◇ UNVERIFIED |
| NANufarm Americas INC | Chicago Heights | IL | — | ◇ UNVERIFIED |
| NLNumake-2 LLC of Mn | Little Falls | MN | — | ◇ UNVERIFIED |
| NINuset Industries, Orrco, 02 Bl (nuseti) | Salt Lake City | UT | — | ◇ UNVERIFIED |
| NPNyacol Products Incorporated | Ashland | MA | — | ◇ UNVERIFIED |
| OCOak-bark CORP | Riegelwood | NC | — | ◇ UNVERIFIED |
| OFOberon Fuels Kershaw Facility | Brawley | CA | — | ◇ UNVERIFIED |
| OObiter | Champaign | IL | — | ◇ UNVERIFIED |
| OFOligo Factory INC | Holliston | MA | — | ◇ UNVERIFIED |
| OROlin Rd Crude Butadiene Ms Mc 43 44 | Beaumont | TX | — | ◇ UNVERIFIED |
| OCOliver Chemical CO INC | Cincinnati | OH | — | ◇ UNVERIFIED |
| OTOmaha Transloading Corporation | Omaha | NE | — | ◇ UNVERIFIED |
| OMOrasis Medical | Laguna Hills | CA | — | ◇ UNVERIFIED |
 Organic Dyes and Pigments | Providence | RI | — | ◇ UNVERIFIED |
| OBOsprey Biotechnics | Sarasota | FL | — | ◇ UNVERIFIED |
| OIOxford Immunotec USA Marlborough | Marlborough | MA | — | ◇ UNVERIFIED |
| OVOxy Vinyls LP - Deer Park Vcm Facility | Deer Park | TX | — | ◇ UNVERIFIED |
| PSP2 Sciences INC. | Naugatuck | CT | — | ◇ UNVERIFIED |
| PPPacheco Plaza Cleaners | Novato | CA | — | ◇ UNVERIFIED |
| PBPacific Biodiesel INC | Kahului | HI | — | ◇ UNVERIFIED |
| PHPacific Hydrotech Corporation | Mission Viejo | CA | — | ◇ UNVERIFIED |
| PTPAK Technologies Holding Company Inc. | Milwaukee | WI | — | ◇ UNVERIFIED |
| PMPandora Methanol LLC | Nederland | TX | — | ◇ UNVERIFIED |
| PPParallel Products of Florida, INC. | Bartow | FL | — | ◇ UNVERIFIED |
| PCParts Cleaning Technologies LLC | Indianapolis | IN | — | ◇ UNVERIFIED |
| PPPasadena Plant | Pasadena | TX | — | ◇ UNVERIFIED |
| PAPatriot Allied Solutions LLC | Hagerman | ID | — | ◇ UNVERIFIED |
| PBPatterson Brother's Lighting INC | Lakeside | CA | — | ◇ UNVERIFIED |
| PUPat Uchida Property | Kelso | WA | — | ◇ UNVERIFIED |
| PEPe Ell Hulk Hauling | Aberdeen | WA | — | ◇ UNVERIFIED |
| PTPellucere Technologies | Springdale | AR | — | ◇ UNVERIFIED |
| PCPemco Corporation | Baltimore | MD | — | ◇ UNVERIFIED |
| PPPetoleum Product Supply, LLC | Guaynabo | PR | — | ◇ UNVERIFIED |
| PBPflaumer Brothers | Ewing | NJ | — | ◇ UNVERIFIED |
| PIPfp Industries LLC | Evanston | WY | — | ◇ UNVERIFIED |
| PIPha Industries | Orange | MA | — | ◇ UNVERIFIED |
| PIPharmasyn INC | Libertyville | IL | — | ◇ UNVERIFIED |
| POPharmscript of Texas North | Tyler | TX | — | ◇ UNVERIFIED |
| PBPhoenix Bio Industries LLC | Goshen | CA | — | ◇ UNVERIFIED |
| PTPhotoprotective Technologies | San Antonio | TX | — | ◇ UNVERIFIED |
| PWPierce White | Dyersburg | TN | — | ◇ UNVERIFIED |
| PIPiling, INC. | Freeport | TX | — | ◇ UNVERIFIED |
| PHPioneer Hi-bred International | Hayward | CA | — | ◇ UNVERIFIED |
| PBPlasmine Bay Minette | Bay Minette | AL | — | ◇ UNVERIFIED |
