| MGMikron G Building | Kent | WA | — | ◇ UNVERIFIED |
| MMMikron Midwest | Winnebago | IL | — | ◇ UNVERIFIED |
| MRMilam Recycling & Disposal | East Saint Louis | IL | — | ◇ UNVERIFIED |
| MFMiles Fiberglass and Composites | Oregon City | OR | — | ◇ UNVERIFIED |
| MFMiles Fiberglass and Plastics Site | Portland | OR | — | ◇ UNVERIFIED |
| MWMilgard Woodclad Division | Tacoma | WA | — | ◇ UNVERIFIED |
| MWMillard Wire & Specialty Strip CO. | Warwick | RI | — | ◇ UNVERIFIED |
| MPMillers Professional Imaging | Pittsburg | KS | — | ◇ UNVERIFIED |
| MUMiller Urethane Prods INC | Moody | AL | — | ◇ UNVERIFIED |
| MWMiller Waste Mills Dba Rtp Company | Winona | MN | — | ◇ UNVERIFIED |
| MOMilroy Optical | Tampa | FL | — | ◇ UNVERIFIED |
| MMMinee Monesse Golf Course | Momence | IL | — | ◇ UNVERIFIED |
| MWMineral Wells Facility | Mineral Wells | TX | — | ◇ UNVERIFIED |
 Mini Systems Incorporated | Plainville | MA | — | ◇ UNVERIFIED |
| MVMinton Ventures, LLC | Lenoir | NC | — | ◇ UNVERIFIED |
| MMMissouri Meerschaum Company | Washington | MO | — | ◇ UNVERIFIED |
| MCMitchell Container Services INC | Saraland | AL | — | ◇ UNVERIFIED |
| MCMitsubishi Chemical Advanced Materials | Wytheville | VA | — | ◇ UNVERIFIED |
| MCMittera Chicago | Berkeley | IL | — | ◇ UNVERIFIED |
| MGMittera Group, INC. | Jacksonville | FL | — | ◇ UNVERIFIED |
| MWMi Windows & Doors LLC -gratz Facility | Gratz | PA | — | ◇ UNVERIFIED |
| MLMixonsite LLC | Chicago | IL | — | ◇ UNVERIFIED |
| MAMizzonis Auto Body INC. | Lodi | NJ | — | ◇ UNVERIFIED |
| MDMk Diamond Products | Torrance | CA | — | ◇ UNVERIFIED |
| MLM & L Oil CO INC | Cisne | IL | — | ◇ UNVERIFIED |
| MOMobil Oil CORP | Newark | DE | — | ◇ UNVERIFIED |
| MOMobil Oil CORP Ss# 17-qgg | Newark | DE | — | ◇ UNVERIFIED |
| MCModagrafics CORP | Rolling Meadows | IL | — | ◇ UNVERIFIED |
| MDModern Dispersion | Leominster | MA | — | ◇ UNVERIFIED |
| MLModern Litho-kansas City | North Kansas City | MO | — | ◇ UNVERIFIED |
| MPModern Plastics | Benton Harbor | MI | — | ◇ UNVERIFIED |
| MTMod Tek | Pennsauken | NJ | — | ◇ UNVERIFIED |
| MIMoistureshield, INC. | Lowell | AR | — | ◇ UNVERIFIED |
| MFMolded Fiber Glass Companies | Aberdeen | SD | — | ◇ UNVERIFIED |
| MFMolded Fiber Glass Companies | Aberdeen | SD | — | ◇ UNVERIFIED |
| MFMolded Fiber Glass Companies, Plant 1 | Ashtabula | OH | — | ◇ UNVERIFIED |
| MFMolded Fiber Glass - Holly Rd | Adelanto | CA | — | ◇ UNVERIFIED |
| MFMolded Fiber Glass Northwest Site | Stevenson | WA | — | ◇ UNVERIFIED |
| MCMolino Co, Melcast Litho Dba | Commerce | CA | — | ◇ UNVERIFIED |
| MLMonarch Litho INC. | Santa Teresa | NM | — | ◇ UNVERIFIED |
| MPMonarch Plastic INC (0285010268) | Orrville | OH | — | ◇ UNVERIFIED |
| MBMondi Bags Usa, LLC | Louisville | KY | — | ◇ UNVERIFIED |
| MHMontec Hydraulics/carmichaels | Carmichaels | PA | — | ◇ UNVERIFIED |
| MCMontrose Cdt | Auburn | MA | — | ◇ UNVERIFIED |
| MIMoo INC. | East Providence | RI | — | ◇ UNVERIFIED |
| MLMoore Labels | Wichita | KS | — | ◇ UNVERIFIED |
| MPMoore Painting CO | Alton | IL | — | ◇ UNVERIFIED |
| MTMoorestown Twp Water Pollution Control Plant | Moorestown | NJ | — | ◇ UNVERIFIED |
| MWMoore Wallace an Rr Donnelley CO | Angola | IN | — | ◇ UNVERIFIED |
| MWMoore Wallace - Hillside Printing | Hillside | IL | — | ◇ UNVERIFIED |
| MWMoore Wallace North America INC | Orlando | FL | — | ◇ UNVERIFIED |
| MWMoore Wallace USA INC | Luray | VA | — | ◇ UNVERIFIED |
| MTMore Than Ink | Jacksonville | FL | — | ◇ UNVERIFIED |
| MPMorgantown Printing & Binding | Morgantown | WV | — | ◇ UNVERIFIED |
| MSMorining Star Manufacturing INC | Crump | TN | — | ◇ UNVERIFIED |
| MCMorongo Casino Cogeneration Facility | Cabazon | CA | — | ◇ UNVERIFIED |
| MCMorris Community Landfill | Morris | IL | — | ◇ UNVERIFIED |
| MPMorrisette Paper Company Incorporated | Reidsville | NC | — | ◇ UNVERIFIED |
| MGMorrison Grease Recycling INC | Morrison | IL | — | ◇ UNVERIFIED |
| MMMorristown Memorial Hospital | Morristown | NJ | — | ◇ UNVERIFIED |
| MBMorrow Brothers Welding | Jacksonville | FL | — | ◇ UNVERIFIED |
| MIMorton International | Woburn | MA | — | ◇ UNVERIFIED |
| MSMorton Supplies INC | Morton | IL | — | ◇ UNVERIFIED |
| MMosaic | Cheverly | MD | — | ◇ UNVERIFIED |
| MCMoss-dickens Co-moss-dickens CO | Union | MO | — | ◇ UNVERIFIED |
| MPMotheral Printing Company | Fort Worth | TX | — | ◇ UNVERIFIED |
| MFMottley Foils INC | Farmville | VA | — | ◇ UNVERIFIED |
| MMMountain Molding LTD | Longmont | CO | — | ◇ UNVERIFIED |
| MPMountain Printing CO INC | Berlin | NJ | — | ◇ UNVERIFIED |
| MTMpl Technologies INC | Franklin Park | IL | — | ◇ UNVERIFIED |
| MIMrc Industries | Roseville | MI | — | ◇ UNVERIFIED |
| MPMrc Polymers INC | Chicago | IL | — | ◇ UNVERIFIED |
| MFMr. Foamer, INC. | Tamarac | FL | — | ◇ UNVERIFIED |
| MFMri Flexible Pkg/newtown | Newtown | PA | — | ◇ UNVERIFIED |
| MMMr. Marble CO. | Lawrenceville | GA | — | ◇ UNVERIFIED |
| MRM&r Rubber CO | Belvidere | IL | — | ◇ UNVERIFIED |
| MPMt Prospect Mail Pharmacy | Mount Prospect | IL | — | ◇ UNVERIFIED |
| MCMuehlstein Compounded Products | Houston | TX | — | ◇ UNVERIFIED |
| MCMulch Center the | North Chicago | IL | — | ◇ UNVERIFIED |
| MIMultibase INC | Copley | OH | — | ◇ UNVERIFIED |
| MCMulti- Color Corporation | Weaverville | NC | — | ◇ UNVERIFIED |
| MCMulti-color Corporation | Louisville | KY | — | ◇ UNVERIFIED |
| MCMulti-color Corporation (mcc-mason) | Mason | OH | — | ◇ UNVERIFIED |
| MCMulti / County Landfill | Villa Grove | IL | — | ◇ UNVERIFIED |
| MPMultifilm Packaging CORP | Elgin | IL | — | ◇ UNVERIFIED |
| MPMulti Packaging and Printing INC | Newton | IA | — | ◇ UNVERIFIED |
| MIMundet-hermetite INC | Buena Vista | VA | — | ◇ UNVERIFIED |
| MTMusculoskeletal Transplant Foundation | Edison | NJ | — | ◇ UNVERIFIED |
 Mustang Survival Mfg., INC. | Elizabeth | WV | — | ◇ UNVERIFIED |
| MMMw Manufacturers | Lexington | NC | — | ◇ UNVERIFIED |
| MMMw Manufacturers INC. | Londonderry | NH | — | ◇ UNVERIFIED |
| MMMyron Manufacturing CORP | Maywood | NJ | — | ◇ UNVERIFIED |
| NNNalge Nunc International | Naperville | IL | — | ◇ UNVERIFIED |
| NNNalge Nunc Intl | Fairport | NY | — | ◇ UNVERIFIED |
| NAN Amer. Fastener | Bridgeport | WV | — | ◇ UNVERIFIED |
| NWNashville Wire Products | Springfield | TN | — | ◇ UNVERIFIED |
| NWNashville Wire Products-display Division-dover Plant | Dover | TN | — | ◇ UNVERIFIED |
| NLNathan Lagin CO INC | Westbury | NY | — | ◇ UNVERIFIED |
| NCNational Chemical | Plainfield | IL | — | ◇ UNVERIFIED |
| NCNational Communications, LLC | Miami Lakes | FL | — | ◇ UNVERIFIED |
