| MTMartin Technology | Rockford | IL | — | ◇ UNVERIFIED |
| MWMartin Wood Products Inc | Bonners Ferry | ID | — | ◇ UNVERIFIED |
| MWMartin Woodworks INC. | West Warwick | RI | — | ◇ UNVERIFIED |
| MHMarvel Holdings LLC | Orchard | TX | — | ◇ UNVERIFIED |
| MMMarvel Machining Enterprises LLC | Bensenville | IL | — | ◇ UNVERIFIED |
| MMMarvel Medtech LLC | Cross Plains | WI | — | ◇ UNVERIFIED |
| MKMarvin Keller Trucking INC | Sullivan | IL | — | ◇ UNVERIFIED |
| MMMarv-O-Lus Manufacturing Company | Chicago | IL | — | ◇ UNVERIFIED |
| MDMarx Digital Mfg, Inc | Las Vegas | NV | — | ◇ UNVERIFIED |
| MEMaryam Enterprises LLC | Lisle | IL | — | ◇ UNVERIFIED |
| MMMaryland Metals Processing, INC. | Sparrows Point | MD | — | ◇ UNVERIFIED |
| MSMaryland Structural Fabricators INC | Millington | MD | — | ◇ UNVERIFIED |
| MSMary Stanton | San Ysidro | CA | — | ◇ UNVERIFIED |
| MLMascoat LLC | West Monroe | LA | — | ◇ UNVERIFIED |
| MCMasco Cabinetry | Los Lunas | NM | — | ◇ UNVERIFIED |
| MCMasco Cabinetry LLC | Mount Jackson | VA | — | ◇ UNVERIFIED |
| MCMasco Cabinetry LLC | Hardeeville | SC | — | ◇ UNVERIFIED |
| MCMasco Cabinetry LLC - Los Lunas | Los Lunas | NM | — | ◇ UNVERIFIED |
| MCMasco Cabinetry Middlefield, LLC. | Orwell | OH | — | ◇ UNVERIFIED |
| MHMascotte Home Security Products INC | Portland | OR | — | ◇ UNVERIFIED |
| MMMaser Mechanical INC | Simi Valley | CA | — | ◇ UNVERIFIED |
| MIMash Industries | Buena Park | CA | — | ◇ UNVERIFIED |
| MCMason Corporation | Jemison | AL | — | ◇ UNVERIFIED |
| MDMason Dba Colorado Lifestyle Furniture | Fort Collins | CO | — | ◇ UNVERIFIED |
| MMMason Machine and Fab, LLC | Lafayette | LA | — | ◇ UNVERIFIED |
| MMMason Machinings INC | Morristown | TN | — | ◇ UNVERIFIED |
| MLMasonmarine.net LLC | San Dimas | CA | — | ◇ UNVERIFIED |
| MOMason & Overstreet Welding & Machine Works, INC. | Pearl | MS | — | ◇ UNVERIFIED |
| MRMason Ridge LLC | Green Bay | WI | — | ◇ UNVERIFIED |
| MRMasonry Reinforcing Corporation of America | Charlotte | NC | — | ◇ UNVERIFIED |
| MSMason Shoe Manufacturing CO | Chippewa Falls | WI | — | ◇ UNVERIFIED |
| MSMason Structural Steel INC. | Walton Hills | OH | — | ◇ UNVERIFIED |
| MWMason West, INC | Placentia | CA | — | ◇ UNVERIFIED |
| MWMaspeth Welding, INC | New York | NY | — | ◇ UNVERIFIED |
| MIMasport Incorporated | Lincoln | NE | — | ◇ UNVERIFIED |
| MCMass Custom Hauling INC | Milan | IL | — | ◇ UNVERIFIED |
| MLMasses LLC | Las Vegas | NV | — | ◇ UNVERIFIED |
| MCMassey Construction Services, Inc. | Tulsa | OK | — | ◇ UNVERIFIED |
| MMMassey Metals INC. | Tampa | FL | — | ◇ UNVERIFIED |
| MLMassivemake LLC | Orlando | FL | — | ◇ UNVERIFIED |
| MMMass Machine & Fabricating Company | Washington | PA | — | ◇ UNVERIFIED |
| MMMass. Machine, INC. | Westwood | MA | — | ◇ UNVERIFIED |
| MPMass Precision, INC | San Jose | CA | — | ◇ UNVERIFIED |
| MPMass Precision Sheetmetal | San Jose | CA | — | ◇ UNVERIFIED |
| MSMas Supply, INC. | Pingree Grove | IL | — | ◇ UNVERIFIED |
| MMMasteq Manufacturing, LLC | New Berlin | WI | — | ◇ UNVERIFIED |
| MBMaster Bilt Products Site 2 | New Albany | MS | — | ◇ UNVERIFIED |
| MMasterbilt/standex | New Albany | MS | — | ◇ UNVERIFIED |
| MCMasterbrand Cabinets | Louisville | KY | — | ◇ UNVERIFIED |
| MCMasterbrand Cabinets Hilltop Warehouse | Ferdinand | IN | — | ◇ UNVERIFIED |
| MCMasterbrand Cabinets INC. | Lynchburg | VA | — | ◇ UNVERIFIED |
| MCMasterbrand Cabinets, INC. | Arthur | IL | — | ◇ UNVERIFIED |
| MCMasterbrand Cabinets, INC. | Manassas | VA | — | ◇ UNVERIFIED |
| MCMasterbrand Cabinets, INC #5 | Huntingburg | IN | — | ◇ UNVERIFIED |
| MBMaster Brand INC | Colton | CA | — | ◇ UNVERIFIED |
| MBMaster Builders Solutions Admixtures US LLC | Longwood | FL | — | ◇ UNVERIFIED |
| MBMaster Builders Solutions Admixtures US LLC | Kent | WA | — | ◇ UNVERIFIED |
| MLMastercast, LTD. | Pawtucket | RI | — | ◇ UNVERIFIED |
| MMastercraft | Denver | CO | — | ◇ UNVERIFIED |
| MMMastercraft Machine INC | West Valley City | UT | — | ◇ UNVERIFIED |
| MFMaster Fabrication LLC | Knoxville | IA | — | ◇ UNVERIFIED |
| MLMasterglas LLC | Lakeville | MN | — | ◇ UNVERIFIED |
| MDMasterline Design & Mfg INC | Harrison Township | MI | — | ◇ UNVERIFIED |
| MMMaster Machine, INC. | Blaine | MN | — | ◇ UNVERIFIED |
| MMMaster Machine, INC. | Houston | TX | — | ◇ UNVERIFIED |
| MMMaster Magnetics, INC. | Castle Rock | CO | — | ◇ UNVERIFIED |
| MMMaster Manufacturing CO. | Cleveland | OH | — | ◇ UNVERIFIED |
| MMMaster Matic INC | Osseo | MN | — | ◇ UNVERIFIED |
| MMMaster Millwork, INC | Randolph | MA | — | ◇ UNVERIFIED |
| MMMaster Molders INC | Orangeburg | SC | — | ◇ UNVERIFIED |
| MIMastermolding, INC. | Phoenix | AZ | — | ◇ UNVERIFIED |
| MAMasterpice Artist Canvas | San Francisco | CA | — | ◇ UNVERIFIED |
| MCMasterpiece Crystal | Jane Lew | WV | — | ◇ UNVERIFIED |
| MCMasters CORP | Lowell | MA | — | ◇ UNVERIFIED |
| MSMaster Sheet Metal | New York | NY | — | ◇ UNVERIFIED |
| MSMaster Sheet Metal, INC. | Schofield Barracks | HI | — | ◇ UNVERIFIED |
 Masters Machine, LLC | Richmond | MI | — | ◇ UNVERIFIED |
| Masters Machine Shop INC | Mankato | MN | — | ◇ UNVERIFIED |
| MPMasters Precision Machining Inc. | Kent | OH | — | ◇ UNVERIFIED |
| MSMaster Swaging, INC. | Jackson Center | OH | — | ◇ UNVERIFIED |
| MCMasterWorks Custom Cabinets LLC | Smyrna | TN | — | ◇ UNVERIFIED |
| MHMastic Home Exteriors, INC. | Sidney | OH | — | ◇ UNVERIFIED |
| MHMastic Home Exteriors, INC. | Stuarts Draft | VA | — | ◇ UNVERIFIED |
| MCMasto Contractor Services INC | Albuquerque | NM | — | ◇ UNVERIFIED |
| MFMatch Fit Grind & Lap | Riverside | CA | — | ◇ UNVERIFIED |
| MPMatchless Plastics INC | Plymouth | MN | — | ◇ UNVERIFIED |
| MMMatcon Manufacturing INC | Cordova | IL | — | ◇ UNVERIFIED |
| MMMatcor Metal Fabrication | Morton | IL | — | ◇ UNVERIFIED |
| MIMatec Instrument CO INC | Wildomar | CA | — | ◇ UNVERIFIED |
| MCMaterial Control | Croswell | MI | — | ◇ UNVERIFIED |
| MCMaterial Control INC. | Atlanta | GA | — | ◇ UNVERIFIED |
| MCMaterial Control, INC. | Arlington | TX | — | ◇ UNVERIFIED |
| MCMaterial Control Systems, INC. | Cordova | IL | — | ◇ UNVERIFIED |
| MHMaterial Handling Solutions | Ontario | CA | — | ◇ UNVERIFIED |
| MHMaterial Handling Systems INC | Independence | KY | — | ◇ UNVERIFIED |
 Material Handling Systems, INC. | Addison | IL | — | ◇ UNVERIFIED |
| MHMaterial Handling Technologies, INC. | North Syracuse | NY | — | ◇ UNVERIFIED |
| MHMaterial Handling Technology | Fair Haven | MI | — | ◇ UNVERIFIED |
| MRMaterial Resources INC | Forest Grove | OR | — | ◇ UNVERIFIED |
| MMMaterials Management, Inc. | Easley | SC | — | ◇ UNVERIFIED |
