| MDMasonite Door Fabrication Services | Yulee | FL | — | ◇ UNVERIFIED |
| MLMass Lite Div | Plainville | MA | — | ◇ UNVERIFIED |
| MCMasterbrand Cabinets INC | Talladega | AL | — | ◇ UNVERIFIED |
| MCMasterbrand Cabinets INC | Martinsville | VA | — | ◇ UNVERIFIED |
| MCMasterbrand Cabinets INC - Richmond | Richmond | IN | — | ◇ UNVERIFIED |
| MCMastercraft Cabinets Incorporated | Mesa | AZ | — | ◇ UNVERIFIED |
| MFMaster Finishing and Restorat | Needham | MA | — | ◇ UNVERIFIED |
| MBMatthews Building Supply Company, INC. | Monroe | NC | — | ◇ UNVERIFIED |
| MTMaxcess Technologies-closed | Summerville | SC | — | ◇ UNVERIFIED |
| MHMayflower Hardwoods Flooring | Lynchburg | VA | — | ◇ UNVERIFIED |
| MFMaynard Frame Shop INC | Star | NC | — | ◇ UNVERIFIED |
| MWMbc Woodshop INC | Morgantown | WV | — | ◇ UNVERIFIED |
| MLMcbride Lumber Company | Star | NC | — | ◇ UNVERIFIED |
| MCMcconnell Cabinets INC | El Monte | CA | — | ◇ UNVERIFIED |
| MWMcneilly Wood Products, INC. | Hamptonburgh | NY | — | ◇ UNVERIFIED |
| MMMcphillips Mfg CO INC | Mobile | AL | — | ◇ UNVERIFIED |
| MMMdm Marble CO | Florida | FL | — | ◇ UNVERIFIED |
| MCMeadors Construction CORP | Charleston | SC | — | ◇ UNVERIFIED |
| MCMedallion Cabinetry INC - Shakopee | Shakopee | MN | — | ◇ UNVERIFIED |
| MUMedrano USA INC | Saint Louis | MO | — | ◇ UNVERIFIED |
| MVMedtronic Vascular INC | Danvers, Town of | MA | — | ◇ UNVERIFIED |
| MFMemphis Folding Stairs INC | Memphis | TN | — | ◇ UNVERIFIED |
| MHMemphis Hardwood Flooring | Memphis | TN | — | ◇ UNVERIFIED |
| MIMerillat Industries INC * | Loudonville | OH | — | ◇ UNVERIFIED |
| MIMerillat Industries Incorporated | Adrian | MI | — | ◇ UNVERIFIED |
| MIMerillat Industries Inc-plant 14 | Atkins | VA | — | ◇ UNVERIFIED |
| MWMerritt Woodwork | Mentor | OH | — | ◇ UNVERIFIED |
| MMetrie | Ferndale | WA | — | ◇ UNVERIFIED |
| MWMetropolitan Woodwork | Springfield | NJ | — | ◇ UNVERIFIED |
| MSMica Shop, INC. | Goshen | IN | — | ◇ UNVERIFIED |
| MPMichigan Pallet INC | Charlotte | MI | — | ◇ UNVERIFIED |
| MCMid Continent Cabinetry | Newton | KS | — | ◇ UNVERIFIED |
| MMMiddletons Mouldings | Bronson | MI | — | ◇ UNVERIFIED |
| MMMiddletons Mouldings | Coldwater | MI | — | ◇ UNVERIFIED |
| MSMid South Custom Cabinets | Smyrna | TN | — | ◇ UNVERIFIED |
| MCMidwest Custom Cabinetry & Woodworking | Abramsabrams | WI | — | ◇ UNVERIFIED |
| MBMidwestern Bioag Holdings LLC | Davenport | IA | — | ◇ UNVERIFIED |
| MMMidwest Mfg Prehung Plant | Eau Claire | WI | — | ◇ UNVERIFIED |
| MCMielach Company | Edison | NJ | — | ◇ UNVERIFIED |
| MWMike's Woodworking INC | Bardstown | KY | — | ◇ UNVERIFIED |
 Milford Enterprises Mfg | Quakertown | PA | — | ◇ UNVERIFIED |
| MMMilgard Manufacturing INC Fiberglass | Fife | WA | — | ◇ UNVERIFIED |
| MWMilgard Windows | Sacramento | CA | — | ◇ UNVERIFIED |
| MCMill Creek Lumber Dba Wood Systems INC / Wood Systems Tulsa Facility | Tulsa | OK | — | ◇ UNVERIFIED |
| MCMiller & Company INC | Selma | AL | — | ◇ UNVERIFIED |
| MHMillers Holzwerk | Tuscola | IL | — | ◇ UNVERIFIED |
| MIMillwood INC | North Haven | CT | — | ◇ UNVERIFIED |
| MIMillwood INC | New Hope | MN | — | ◇ UNVERIFIED |
| MIMillwood Inc-melrose Park Fsc | Melrose Park | IL | — | ◇ UNVERIFIED |
| MGMinami Granite Designs INC | Ocala | FL | — | ◇ UNVERIFIED |
