| MMM2 Modern Metal, LLC | Salt Lake City | UT | — | ◇ UNVERIFIED |
 M2 Performance Solutions LLC | Huntersville | NC | — | ◇ UNVERIFIED |
| MAM3 Aerospace | El Paso | TX | — | ◇ UNVERIFIED |
| MMM3 Mfg LLC | Ramona | CA | — | ◇ UNVERIFIED |
| MPM3 Precision LLC Dba K&g Engineering | Santa Maria | CA | — | ◇ UNVERIFIED |
| MRMaas Radiator Shop INC | Bloomington | IL | — | ◇ UNVERIFIED |
| MAMacadam Aluminum & Bronze CO | Portland | OR | — | ◇ UNVERIFIED |
| MMachfinish | Palmdale | CA | — | ◇ UNVERIFIED |
| MAMachine and Fabrication Indust | Kent | WA | — | ◇ UNVERIFIED |
| MAMachine and Hydraulics, INC. | Gardendale | AL | — | ◇ UNVERIFIED |
| MCMachine Casting INC | Melrose | MN | — | ◇ UNVERIFIED |
| MCMachine Craft Northwest INC | Lebanon | OR | — | ◇ UNVERIFIED |
| MCMachine Craft San Diego | San Diego | CA | — | ◇ UNVERIFIED |
| MDMachine Design Services, Inc. | South Hutchinson | KS | — | ◇ UNVERIFIED |
| MMMachined Metals Manufacturing, INC. | Elk Grove Village | IL | — | ◇ UNVERIFIED |
| MDMachine Dynamics Ultra Precision Cnc Machining, INC. | Westminster | CA | — | ◇ UNVERIFIED |
| MIMachine Industries INC | Chippewa Falls | WI | — | ◇ UNVERIFIED |
| MLMachine+ LLC | Green Bay | WI | — | ◇ UNVERIFIED |
| MMMachine Master, INC. | Arvada | CO | — | ◇ UNVERIFIED |
| MPMachine Pro Technologies, INC. | Celina | OH | — | ◇ UNVERIFIED |
| MMMachinery Manufacturer LLC | San Bernardino | CA | — | ◇ UNVERIFIED |
| MSMachinery Spare Parts & Supplies INC | Independence | MO | — | ◇ UNVERIFIED |
| MSMachine Shop Express | San Diego | CA | — | ◇ UNVERIFIED |
 Machine Tech, INC. | Adel | GA | — | ◇ UNVERIFIED |
| MTMachine Technology, INC. | Fenton | MO | — | ◇ UNVERIFIED |
| MTMachine Tool Design & Fab LLC | Fostoria | OH | — | ◇ UNVERIFIED |
| MTMachine Tool Masters, INC. | Pensacola | FL | — | ◇ UNVERIFIED |
| MTMachine Tool Technologies Research Foundation | Berkeley | CA | — | ◇ UNVERIFIED |
| MIMachinewell INC | Grygla | MN | — | ◇ UNVERIFIED |
| MWMachine Worx of Cincinnati | Cincinnati | OH | — | ◇ UNVERIFIED |
| MMachinex | Bensenville | IL | — | ◇ UNVERIFIED |
| MIMachinex INC | Chula Vista | CA | — | ◇ UNVERIFIED |
| MCMachining & Coating Specialists, INC. | Leeds | AL | — | ◇ UNVERIFIED |
| MCMachining Concepts, Inc. | Cambridge | MN | — | ◇ UNVERIFIED |
| MSMachining Specialists, INC. | Pearland | TX | — | ◇ UNVERIFIED |
 Machining Technologies INC | Long Lake | MN | — | ◇ UNVERIFIED |
| Machining Technologies LLC | Webster | MA | — | ◇ UNVERIFIED |
| MWMachining - Welding By Olsen INC | Cokato | MN | — | ◇ UNVERIFIED |
| MGMachinists Group Corporation | Gilroy | CA | — | ◇ UNVERIFIED |
| MIMachinists INC | Seattle | WA | — | ◇ UNVERIFIED |
| MMachmotion | Newburg | MO | — | ◇ UNVERIFIED |
| MLMachprop LLC | Everett | WA | — | ◇ UNVERIFIED |
| MIMachtron INC | Fridley | MN | — | ◇ UNVERIFIED |
| MFMACI Fabricators, LLC | Columbiana | OH | — | ◇ UNVERIFIED |
 Mac Industries | Fontana | CA | — | ◇ UNVERIFIED |
| MCMaclean Curtis, L.l.c. | Cornelius | NC | — | ◇ UNVERIFIED |
| MCMaclean-fogg Component Solutions | Chesterfield | MI | — | ◇ UNVERIFIED |
| MCMaclean-fogg Component Solutions, INC. Dba Maclean | Cornelius | NC | — | ◇ UNVERIFIED |
| MMMac Machine, LLC | Pauls Valley | OK | — | ◇ UNVERIFIED |
| MRMAC RAK, Inc. | Moberly | MO | — | ◇ UNVERIFIED |
| MMMadar Metal Fabricating LLC | Lansing | MI | — | ◇ UNVERIFIED |
 Maddox Industries, INC. | Monroe | GA | — | ◇ UNVERIFIED |
| MAMadera and Beau LLC | Cardiff By the Sea | CA | — | ◇ UNVERIFIED |
| MLMadewell, LLC | Houston | TX | — | ◇ UNVERIFIED |
| MHMad House Customs LLC | Denver | NC | — | ◇ UNVERIFIED |
| MLMadhuram, LLC | San Jose | CA | — | ◇ UNVERIFIED |
| MMMadison Manufacturing Inc. | Bremen | IN | — | ◇ UNVERIFIED |
| MMMadison-smith Machine & Tool CO LLC | Glasgow | KY | — | ◇ UNVERIFIED |
| MIMadruga Iron Works, INC. | Tracy | CA | — | ◇ UNVERIFIED |
| MSMad Science Machining, LLC | Conroe | TX | — | ◇ UNVERIFIED |
| MTMad Tech Diesel Workz LLC | Rancho Cucamonga | CA | — | ◇ UNVERIFIED |
| MIMaf Industries | Traver | CA | — | ◇ UNVERIFIED |
| MDMagalee Designs, LLC | Eugene | OR | — | ◇ UNVERIFIED |
| MPMagdic Precision Tooling | North Versailles | PA | — | ◇ UNVERIFIED |
| MRMagical Rubbish | Moses Lake | WA | — | ◇ UNVERIFIED |
| MCMagic Cleaners | Portland | OR | — | ◇ UNVERIFIED |
| MAMagna Assembly Piedmont | Piedmont | SC | — | ◇ UNVERIFIED |
| MCMagna Composites L.l.c. | Newton | NC | — | ◇ UNVERIFIED |
| MEMagna Engineered Glass | Holland | MI | — | ◇ UNVERIFIED |
| MIMagna International | Muncie | IN | — | ◇ UNVERIFIED |
| MIMagna International INC | Lansing | MI | — | ◇ UNVERIFIED |
| MMagna-lakeland | Kentwood | MI | — | ◇ UNVERIFIED |
| MMagnaloy | Alpena | MI | — | ◇ UNVERIFIED |
| MMMagna Mirrors | Grand Rapids | MI | — | ◇ UNVERIFIED |
| MPMagna Powertrain Shelby Township | Utica | MI | — | ◇ UNVERIFIED |
| MNMagnatron NC Pattern & Mfg, Inc. | Howell | MI | — | ◇ UNVERIFIED |
| MSMagnetic Sales & Manufacturing CO. INC | Tucson | AZ | — | ◇ UNVERIFIED |
| MSMagnetic Screw Machine Products, INC. | Marysville | OH | — | ◇ UNVERIFIED |
| MSMagnetic Specialties INC | Clackamas | OR | — | ◇ UNVERIFIED |
| MAMagnolia Automotive Services-alabama LLC | Madison | AL | — | ◇ UNVERIFIED |
| MMMagnum Machine, INC. | Grand Junction | CO | — | ◇ UNVERIFIED |
| MMMagnum Magnetics | Caldwell | OH | — | ◇ UNVERIFIED |
| MSMagnum Steel Works, Inc | Mount Vernon | IL | — | ◇ UNVERIFIED |
| MSMagnus Screw Products | Chicago | IL | — | ◇ UNVERIFIED |
| MAMagoo's Auto Parts | Hilo | HI | — | ◇ UNVERIFIED |
| MLMahaan LLC | Plain City | OH | — | ◇ UNVERIFIED |
| MBMahle Behr Charleston INC. | North Charleston | SC | — | ◇ UNVERIFIED |
| MIMahle INC Trumbull Plant | Trumbull | CT | — | ◇ UNVERIFIED |
| MLMainline LLC | Shelby Gap | KY | — | ◇ UNVERIFIED |
| MMMainline Machine, INC. | Lafayette | LA | — | ◇ UNVERIFIED |
| MMMain Machine INC | Concord | CA | — | ◇ UNVERIFIED |
| MSMain St. Machine & Repair LLC | Saint Paul | OR | — | ◇ UNVERIFIED |
| MMMainstream Manufacturing LLC | Beaumont | TX | — | ◇ UNVERIFIED |
| MSMain Street Machining LLC | Kersey | PA | — | ◇ UNVERIFIED |
| MCMaintainer CORP of Ky INC | Hopkinsville | KY | — | ◇ UNVERIFIED |
| MMMajaskis Machine Shop INC | Royalton | MN | — | ◇ UNVERIFIED |
| MAMajor Armature Co-recycling Div | Chicago | IL | — | ◇ UNVERIFIED |
| MMMajor Maintenance & Repair Building N1 | Kodiak Base | AK | — | ◇ UNVERIFIED |
| MMMajor Metals, INC. | Houston | TX | — | ◇ UNVERIFIED |
| MCMajX CNC | Tempe | AZ | — | ◇ UNVERIFIED |
