| MIMarlock INC | Maynardville | TN | — | ◇ UNVERIFIED |
 Marsam Metal Finishing | New Britain | CT | — | ◇ UNVERIFIED |
| MSMarshalls Sandblasting and Painting | Willis | VA | — | ◇ UNVERIFIED |
| MCMartin Container Service INC | Wilmington | CA | — | ◇ UNVERIFIED |
| MMMartin Marietta Composites INC Sparta Facility | Sparta | NC | — | ◇ UNVERIFIED |
| MSMartin Specialty Coatings LLC | Shreveport | LA | — | ◇ UNVERIFIED |
| MPMaryland Plastics | Federalsburg | MD | — | ◇ UNVERIFIED |
| MRMasco Retail Cabinet Group | Waverly | OH | — | ◇ 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 |
| MCMasters Corporation | Lowell | MA | — | ◇ UNVERIFIED |
| MPMaterial Processing and Handling CO | Fostoria | OH | — | ◇ UNVERIFIED |
| MPMaterial Processing INC | Riverview | MI | — | ◇ UNVERIFIED |
| MIMatlab Incorporated Ramseur Facility | Ramseur | NC | — | ◇ UNVERIFIED |
| MIMatlab, INC. - Plants 1-4, 5, 7, 8 and 11 | Asheboro | NC | — | ◇ UNVERIFIED |
| MPMato Plastics INC. | Valencia | CA | — | ◇ UNVERIFIED |
| MPMauser Packaging Solutions | Charlotte | NC | — | ◇ UNVERIFIED |
| MPMaverick Powder Coat & Sandblast | Anaheim | CA | — | ◇ UNVERIFIED |
| MMMayfair Molded Products CORP | Schiller Park | IL | — | ◇ UNVERIFIED |
| MEMayville Engineering Company | Wytheville | VA | — | ◇ UNVERIFIED |
| MBMccann Barrel | Milwaukee | WI | — | ◇ UNVERIFIED |
| MPMcclarin Plastics LLC | Hanover | PA | — | ◇ UNVERIFIED |
| MMMccormick & Mccormick Investments, LLC | Little Rock | AR | — | ◇ UNVERIFIED |
| MPMcmaster Plating | Longview | TX | — | ◇ UNVERIFIED |
| MDMd Designs Inc-metal Decor | Springfield | IL | — | ◇ UNVERIFIED |
| MMM&d Metal Finishing Specialties INC - Blaine | Blaine | MN | — | ◇ UNVERIFIED |
| MCMeadwestvaco Calmar INC. | Winfield | KS | — | ◇ UNVERIFIED |
 Medegen Medical Products, LLC | Northglenn | CO | — | ◇ UNVERIFIED |
| MIMedline INC. | Mundelein | IL | — | ◇ UNVERIFIED |
| MIMegamet Industries, INC. | Birmingham | AL | — | ◇ UNVERIFIED |
| MEMelco Engraving INC | Rochester Hills | MI | — | ◇ UNVERIFIED |
| MCMelsur CORP | Westminster | VT | — | ◇ UNVERIFIED |
| MCMerck & Co, LLC | Boulder | CO | — | ◇ 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 |
| MCMetal Coatings | Magna | UT | — | ◇ UNVERIFIED |
| MFMetal Finishing Arlington | Arlington | WA | — | ◇ UNVERIFIED |
| MFMetal Finishing CO. - Wichita (may St)(air) | Wichita | KS | — | ◇ UNVERIFIED |
| MIMetalife Ind/reno | Reno | PA | — | ◇ UNVERIFIED |
| MIMetal Improvement CO INC | Shelby Twp | MI | — | ◇ UNVERIFIED |
| MGMetalplate Galvanizing LP | Houston | TX | — | ◇ UNVERIFIED |
| MGMetalplate Galvanizing, L.p. | Roanoke | LA | — | ◇ UNVERIFIED |
| MPMetal Prep Houston Plant | Houston | TX | — | ◇ UNVERIFIED |
| MLMetavation LLC | Mount Pleasant | MI | — | ◇ UNVERIFIED |
| MCMetokote CORP | Peru | IL | — | ◇ UNVERIFIED |
