| MPMar-bal Pultrusion, INC. | Willoughby | OH | — | ◇ UNVERIFIED |
| MCMarble Connection/cabinet Connection | Port Saint Lucie | FL | — | ◇ UNVERIFIED |
| MPMarble Palace | Stockton | CA | — | ◇ UNVERIFIED |
| MEMarine Electrical Products | Lebanon | MO | — | ◇ UNVERIFIED |
| MIMark I Molded Plastics of Tennessee | Henry | TN | — | ◇ UNVERIFIED |
| MRMark Richey Woodworking & Design INC | Newburyport | MA | — | ◇ UNVERIFIED |
| MIMarlock INC | Maynardville | TN | — | ◇ UNVERIFIED |
| MCMars Custom Plastics INC | Providence | RI | — | ◇ UNVERIFIED |
| MMMartin Marietta Composites INC Sparta Facility | Sparta | NC | — | ◇ UNVERIFIED |
| MPMaryland Plastics | Federalsburg | MD | — | ◇ UNVERIFIED |
| MRMasco Retail Cabinet Group | Waverly | OH | — | ◇ UNVERIFIED |
| MSMason Shoe Mfg Company | Chippewa Falls | WI | — | ◇ UNVERIFIED |
| MPMastercraft Pattern and Model Works INC / Fiberglass Reinforced Plastic Mfg Faci | North Miami | OK | — | ◇ UNVERIFIED |
| MIMasterfab INC | Goshen | IN | — | ◇ UNVERIFIED |
| MMMaster Molded Products | Elgin | IL | — | ◇ UNVERIFIED |
| MPMaterial Processing and Handling CO | Fostoria | OH | — | ◇ UNVERIFIED |
| MPMato Plastics INC. | Valencia | CA | — | ◇ UNVERIFIED |
| MPMauser Packaging Solutions | Charlotte | NC | — | ◇ UNVERIFIED |
| MMMayfair Molded Products CORP | Schiller Park | IL | — | ◇ UNVERIFIED |
| MBMccann Barrel | Milwaukee | WI | — | ◇ UNVERIFIED |
| MPMcclarin Plastics LLC | Hanover | PA | — | ◇ UNVERIFIED |
| MCMeadwestvaco Calmar INC. | Winfield | KS | — | ◇ UNVERIFIED |
 Medegen Medical Products, LLC | Northglenn | CO | — | ◇ UNVERIFIED |
| MIMedline INC. | Mundelein | IL | — | ◇ UNVERIFIED |
| MCMelsur CORP | Westminster | VT | — | ◇ UNVERIFIED |
| MPMercury Plastics, INC. | City of Industry | CA | — | ◇ UNVERIFIED |
| MAMeridian Automotive | Jackson | OH | — | ◇ UNVERIFIED |
| MAMeridian Automotive Systems | Shelbyville | IN | — | ◇ UNVERIFIED |
| MAMeridian Automotive Systems INC | Canandaigua | NY | — | ◇ UNVERIFIED |
| MHMeritor - Howell | Howell | MI | — | ◇ UNVERIFIED |
| MIMetaglo INC. | Mamaroneck | NY | — | ◇ UNVERIFIED |
| MGMfg Galileo Composites | Sparks | NV | — | ◇ UNVERIFIED |
| MMgs | Germantown | WI | — | ◇ UNVERIFIED |
| MUMicrodyn-nadir US INC | Goleta | CA | — | ◇ UNVERIFIED |
| MPMicro Plastics, INC. | Melbourne | AR | — | ◇ UNVERIFIED |
| MSMid-america Steel Drum CO INC | Saint Francis | WI | — | ◇ UNVERIFIED |
| MCMidwest Container Reconditioning Mcr | Fulton | MO | — | ◇ UNVERIFIED |
| MMMidwest Molding, INC. | Wolcottville | IN | — | ◇ UNVERIFIED |
| MPMidwest Plastic CO | Cherryvale | KS | — | ◇ UNVERIFIED |
| MTMidwest Tank Services INC | Bolivar | OH | — | ◇ UNVERIFIED |
| MGMikron G Building | Kent | WA | — | ◇ UNVERIFIED |
| MMMikron Midwest | Winnebago | IL | — | ◇ UNVERIFIED |
| MWMilgard Woodclad Division | Tacoma | WA | — | ◇ UNVERIFIED |
| MWMineral Wells Facility | Mineral Wells | TX | — | ◇ UNVERIFIED |
| MCMitsubishi Chemical Advanced Materials | Wytheville | VA | — | ◇ UNVERIFIED |
| MWMi Windows & Doors LLC -gratz Facility | Gratz | PA | — | ◇ UNVERIFIED |
| MDModern Dispersion | Leominster | MA | — | ◇ UNVERIFIED |
| MPModern Plastics | Benton Harbor | MI | — | ◇ 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 |
| MPMonarch Plastic INC (0285010268) | Orrville | OH | — | ◇ UNVERIFIED |
| MSMorining Star Manufacturing INC | Crump | TN | — | ◇ UNVERIFIED |
| MIMorton International | Woburn | MA | — | ◇ UNVERIFIED |
| MMMountain Molding LTD | Longmont | CO | — | ◇ UNVERIFIED |
| MIMrc Industries | Roseville | MI | — | ◇ UNVERIFIED |
| MMMr. Marble CO. | Lawrenceville | GA | — | ◇ UNVERIFIED |
| MMMw Manufacturers | Lexington | NC | — | ◇ UNVERIFIED |
| MMMw Manufacturers INC. | Londonderry | NH | — | ◇ UNVERIFIED |
| NNNalge Nunc International | Naperville | IL | — | ◇ UNVERIFIED |
| NNNalge Nunc Intl | Fairport | NY | — | ◇ UNVERIFIED |
| NENational Environmental Fiberglass LLC | Adelanto | CA | — | ◇ UNVERIFIED |
| NPNational Picture & Frame Company | Greenwood | MS | — | ◇ UNVERIFIED |
| NPNational Plastics Color | Valley Center | KS | — | ◇ UNVERIFIED |
| NPNational Plastics Color INC | Valley Center | KS | — | ◇ UNVERIFIED |
| NBNew Balance Athletic Shoe INC | Boston | MA | — | ◇ UNVERIFIED |
| NRNewell Rubbermaid | Winfield | KS | — | ◇ UNVERIFIED |
| NVNew Vision Fiberglass-grand Forks Plant | Grand Forks | ND | — | ◇ UNVERIFIED |
| NFNiagara Fiberglass INC | Buffalo | NY | — | ◇ UNVERIFIED |
| NKNifco Ktw | Toccoa | GA | — | ◇ UNVERIFIED |
| NANiles America Wintech INC | Winchester | KY | — | ◇ UNVERIFIED |
| NINoble Industries LTD | Hibbing | MN | — | ◇ UNVERIFIED |
| NPNomad Pools, LLC | Port Richey | FL | — | ◇ UNVERIFIED |
| NINorcen Inds INC | Jersey Shore | PA | — | ◇ UNVERIFIED |
| NSNorcross Safety Products LLC | Nashua | NH | — | ◇ UNVERIFIED |
| NENordson Efd LLC | Robbinsville | NJ | — | ◇ UNVERIFIED |
| NPNorseman Plastics INC | Kissimmee | FL | — | ◇ UNVERIFIED |
| NENorthern Engraving CORP | Holmen | WI | — | ◇ UNVERIFIED |
| NPNorthern Plastics INC | Kalispell | MT | — | ◇ UNVERIFIED |
| NNorwesco | Merced | CA | — | ◇ UNVERIFIED |
| NFNov Fiber Glass Systems, LP Aka Containment Solutions, INC. | Tulsa | OK | — | ◇ UNVERIFIED |
| NSNursery Supplies INC | Kissimmee | FL | — | ◇ UNVERIFIED |
| NBNvp Building Expansion | Nephi | UT | — | ◇ UNVERIFIED |
| NONyloncraft of Michigan | Jonesville | MI | — | ◇ UNVERIFIED |
| NCNypro Colorado INC | Longmont | CO | — | ◇ UNVERIFIED |
| NPNypro Puerto Rico INC | Cayey | PR | — | ◇ UNVERIFIED |
| NINyx Inc-livonia-28100 Plymouth | Livonia | MI | — | ◇ UNVERIFIED |
| OTOak Technical, INC. | Ravenna | OH | — | ◇ UNVERIFIED |
| OTOak Technical LLC. | Tullahoma | TN | — | ◇ UNVERIFIED |
| OPOakwood Plastics Division | Taylor | MI | — | ◇ UNVERIFIED |
| OIOldcastle Infrastructure | Kennedale | TX | — | ◇ UNVERIFIED |
| OFOlympic Fiberglass Industries | Rochester | IN | — | ◇ UNVERIFIED |
| OIOmar INC | University Park | IL | — | ◇ UNVERIFIED |
| OPOmega Packaging Dba Comar | La Mirada | CA | — | ◇ UNVERIFIED |
| OMOneida Molded Plastics LLC | Oneida | NY | — | ◇ UNVERIFIED |
| OIOnguard Industries LLC | Havre De Grace | MD | — | ◇ UNVERIFIED |
| OIOno Industries INC | Ono | PA | — | ◇ UNVERIFIED |
