| MPMace Polymers and Coating CO | Dudley | MA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| MMacrocyclics | Plano | TX | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| MCMark C. Mehrali Dds, a Professional CORP | Camarillo | CA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| MSMarubeni Specialty Chemical INC | Burlingame | CA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| MBMaster Builders Solutions | Hollister | CA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| MBMbi (molecular Biologicals International) | Irvine | CA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| MIMca, INC. Ses C/o Hhe, INC. | Carson | CA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| MCMhba Chocolate Bayou Plant | Alvin | TX | Chemical Manufacturing325110 | — | ◇ UNVERIFIED |
| MTMicro Tracers INC | Commerce | CA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| MCMid Con Systems, INC. | Omaha | NE | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| MKMikuni Kansas (stormwater) | Olathe | KS | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
 Molecular Matrix INC | West Sacramento | CA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| MRMontco Research Products, INC. | Hollister | FL | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| MIMor-mike Industries | Bridgewater | MI | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| MIMorton International Inc, Dba Rohm and Haas Electronic Materials LLC | Moss Point | MS | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| MTMother's Therapy Organics LLC | Castle Rock | CO | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| MMMundy Maintenance and Services, LLC | Portsmouth | VA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| MSMuscle Shoals Mini Storage | Muscle Shoals | AL | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| NCNalco Company | San Diego | CA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| NKNalco Kilgore Facility | Kilgore | TX | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| NINataur INC. | Baltimore | MD | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| NGNatures Grace and Wellness LLC | Springfield | MO | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| NBNetzero Biofuels | Rock Tavern | NY | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| NENew England Biolabs, INC. | Rowley | MA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| NTNew Technology Plastics | Westminster | CA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| NMNewton Manufacturing Plant | Port Lavaca | TX | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| NRNext Renewable Fuels Oregon, LLC | Clatskanie | OR | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| NSNippon Shokubai America Industries Pasadena | Pasadena | TX | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| NANorthern Adhesives, INC. | Maspeth | NY | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| NCNouryon Chemicals LLC | Mays Landing | NJ | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| NSNouryon Surface Chemistry LLC | Salisbury | NC | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| NLNumake-2 LLC of Mn | Little Falls | MN | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| NPNyacol Products Incorporated | Ashland | MA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| OSOccidental Site | Santa Rosa | CA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| OROlin Rd Crude Butadiene Ms Mc 43 44 | Beaumont | TX | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| OCOliver Chemical CO INC | Cincinnati | OH | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| OMOrasis Medical | Laguna Hills | CA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| OIOxford Immunotec USA Marlborough | Marlborough | MA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| OVOxy Vinyls LP - Deer Park Vcm Facility | Deer Park | TX | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| PSP2 Sciences INC. | Naugatuck | CT | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| PPPacheco Plaza Cleaners | Novato | CA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| PHPacific Hydrotech Corporation | Mission Viejo | CA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| PTPAK Technologies Holding Company Inc. | Milwaukee | WI | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| PMPandora Methanol LLC | Nederland | TX | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| PPParallel Products of Florida, INC. | Bartow | FL | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| PPPasadena Plant | Pasadena | TX | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| PAPatriot Allied Solutions LLC | Hagerman | ID | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| PBPatterson Brother's Lighting INC | Lakeside | CA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| PCPemco Corporation | Baltimore | MD | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| PPPetoleum Product Supply, LLC | Guaynabo | PR | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
