| MBMidwest Biofuel, LLC | Clinton | WI | — | ◇ UNVERIFIED |
| MCMidwest Composites, LLC | Wapakoneta | OH | — | ◇ UNVERIFIED |
| MIMidwest Industrial Coatings, INC | Shakopee | MN | — | ◇ UNVERIFIED |
| MHMile High Labs, INC | Broomfield | CO | — | ◇ UNVERIFIED |
| MPMillennium Pharmaceuticals INC | Cambridge | MA | — | ◇ UNVERIFIED |
| MCMillipore Cidra INC | Cidra | PR | — | ◇ UNVERIFIED |
| MPMilliporesigma - Port Washington | Port Washington | WI | — | ◇ UNVERIFIED |
| MOMilroy Optical | Tampa | FL | — | ◇ UNVERIFIED |
| MPMirandy Products LLC | Miami | FL | — | ◇ UNVERIFIED |
| MKMission Kleensweep Prods INC | Los Angeles | CA | — | ◇ UNVERIFIED |
| MCMistolin Caribe INC | Bayamon | PR | — | ◇ UNVERIFIED |
| MCMitsubishi Chemical Performance Polymers INC | Warren | MI | — | ◇ UNVERIFIED |
| MKMitsubishi Kagaku Imaging CORP - Toner | Chesapeake | VA | — | ◇ UNVERIFIED |
| MCMobil Chemical Company | Santa Ana | CA | — | ◇ UNVERIFIED |
| MCMocom Compounds Corporation | Duncan | SC | — | ◇ UNVERIFIED |
| MSModern Silicone Technologies, INC. | Clearwater | FL | — | ◇ UNVERIFIED |
| MSModular Solid Surfaces, LLC | Lakeland | FL | — | ◇ UNVERIFIED |
| MSMomentive Specialty Chemicals INC | Demopolis | AL | — | ◇ UNVERIFIED |
| MSMomentive Specialty Chemicals INC Mt Jewett Facility | Mount Jewett | PA | — | ◇ UNVERIFIED |
| MCMonsanto CO | Kenilworth | NJ | — | ◇ UNVERIFIED |
| MCMontrose Chemical Corporation of Ca -henderson, Nevada Site | Henderson | NV | — | ◇ UNVERIFIED |
| MCMorgan County Renewable Fuels, LLC | Log Lane Village, 3.5 Mi Sw of | CO | — | ◇ UNVERIFIED |
| MMMorristown Memorial Hospital | Morristown | NJ | — | ◇ UNVERIFIED |
| MGMorton Grove Pharmaceuticals Incorporated | Morton Grove | IL | — | ◇ UNVERIFIED |
| MMMotrin Manufacturing | Barceloneta | PR | — | ◇ UNVERIFIED |
| MMMountain Marble Manufacturing INC | Prescott Valley | AZ | — | ◇ UNVERIFIED |
| MHMount Hood Chemical Corporation | Portland | OR | — | ◇ UNVERIFIED |
| MTMpl Technologies INC | Franklin Park | IL | — | ◇ UNVERIFIED |
| MPMrc Polymers INC | Chicago | IL | — | ◇ UNVERIFIED |
| MJMr Juice LLC Warehouse | Garden City | ID | — | ◇ UNVERIFIED |
| MTMulti Technologies INC | Saint Louis | MO | — | ◇ UNVERIFIED |
| MTMusculoskeletal Transplant Foundation | Edison | NJ | — | ◇ UNVERIFIED |
| MIMylan INC | Caguas | PR | — | ◇ UNVERIFIED |
| MPMylan Pharmaceuticals, Morgantown | Morgantown | WV | — | ◇ UNVERIFIED |
| MTMylan Technologies INC | Swanton | VT | — | ◇ UNVERIFIED |
| MIMylec INC | Winchendon | MA | — | ◇ UNVERIFIED |
| NINA Industries Pasadena | Seabrook | TX | — | ◇ UNVERIFIED |
| NBNapro Biotherapeutics, INC. | Longmont | CO | — | ◇ UNVERIFIED |
| NBNapro Biotherapeutics - Spine Rd | Boulder | CO | — | ◇ UNVERIFIED |
| NDNashville Drug Manufacturing | Nashville | TN | — | ◇ UNVERIFIED |
| NCNational Casein | Tyler | TX | — | ◇ UNVERIFIED |
| NINational Interchem CORP | Chicago | IL | — | ◇ UNVERIFIED |
| NPNational Patent Development CO Hydron Me | New Brunswick | NJ | — | ◇ UNVERIFIED |
| NPNational Peening Incorporated | Salem | VA | — | ◇ UNVERIFIED |
| NPNational Plastics Color | Valley Center | KS | — | ◇ UNVERIFIED |
| NPNational Purity LLC | Britt | IA | — | ◇ UNVERIFIED |
| NTNational Trail Biodiesel Group LLC | Newton | IL | — | ◇ UNVERIFIED |
| NANatural Alternatives International INC | Vista | CA | — | ◇ UNVERIFIED |
| NONatural Organics Laboratories, INC. | Amityville | NY | — | ◇ UNVERIFIED |
| NPNatural Pharmaceuticals | Fall River | MA | — | ◇ UNVERIFIED |