| M1Mach 1 Food Shop 5 | Effingham | IL | — | ◇ UNVERIFIED |
| M1Mach 1 Food Shop 6 | Lawrenceville | IL | — | ◇ UNVERIFIED |
| M1Mach 1 Food Shop 7 | Effingham | IL | — | ◇ UNVERIFIED |
| M1Mach 1 Food Shop 8 | Taylorville | IL | — | ◇ UNVERIFIED |
| M1Mach 1 Food Shop 9 | Taylorville | IL | — | ◇ UNVERIFIED |
| MAMachine and Fabrication Indust | Kent | WA | — | ◇ UNVERIFIED |
| MAMachine and Hydraulics, INC. | Gardendale | AL | — | ◇ UNVERIFIED |
| MAMachine Applications Technology INC | San Jose | CA | — | ◇ UNVERIFIED |
| MCMachine Casting INC | Melrose | MN | — | ◇ UNVERIFIED |
| MCMachine Craft Northwest INC | Lebanon | OR | — | ◇ 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 |
| MLMachine+ LLC | Green Bay | WI | — | ◇ UNVERIFIED |
| MPMachine Pro Technologies, INC. | Celina | OH | — | ◇ UNVERIFIED |
| MSMachinery Spare Parts & Supplies INC | Independence | MO | — | ◇ UNVERIFIED |
 Machine Tech, INC. | Pineville | WV | — | ◇ UNVERIFIED |
| Machine Tech, INC. | Adel | GA | — | ◇ UNVERIFIED |
| MTMachine Technology, INC. | Fenton | MO | — | ◇ UNVERIFIED |
| MTMachine Tool Design & Fab LLC | Fostoria | OH | — | ◇ 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 |
| 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 |
| MIMachinists INC | Seattle | WA | — | ◇ UNVERIFIED |
| MMachmotion | Newburg | MO | — | ◇ UNVERIFIED |
| MLMachprop LLC | Everett | WA | — | ◇ UNVERIFIED |
| MIMachtron INC | Fridley | MN | — | ◇ UNVERIFIED |
| MIMacias Iron Works | Anaheim | CA | — | ◇ UNVERIFIED |
| MFMACI Fabricators, LLC | Columbiana | OH | — | ◇ UNVERIFIED |
| MIMacken Instruments INC Dba Lightwave Laser Paper Division | Santa Rosa | CA | — | ◇ UNVERIFIED |
| MVMackinaw Valley Restoration | Morton | IL | — | ◇ UNVERIFIED |
| MWMacksteel Warehouse, INC. | Watertown | SD | — | ◇ UNVERIFIED |
| MCMaclean Curtis, L.l.c. | Cornelius | NC | — | ◇ UNVERIFIED |
| MLMac Lean-fogg Company | Wheeling | IL | — | ◇ UNVERIFIED |
| MCMaclean-fogg Component Solutions, INC. Dba Maclean | Cornelius | NC | — | ◇ UNVERIFIED |
| MMMac Machine, LLC | Pauls Valley | OK | — | ◇ UNVERIFIED |
| MHMacomb Hyvee Gas | Macomb | IL | — | ◇ UNVERIFIED |
| MPMacota Properties, LLC | Conroe | TX | — | ◇ UNVERIFIED |
| MRMAC RAK, Inc. | Joliet | IL | — | ◇ UNVERIFIED |
| MRMac Rak, Inc., | Crest Hill | IL | — | ◇ UNVERIFIED |
| MLMacrosource LLC | Marseilles | IL | — | ◇ UNVERIFIED |
| MCMac's Convenience Stores LLC | Springfield | IL | — | ◇ UNVERIFIED |
| MTM.A.C. Tech Fabrication & Repairs Inc. | Jamaica aka Springfield Gardens | NY | — | ◇ UNVERIFIED |
 Maddox Industries, INC. | Monroe | GA | — | ◇ UNVERIFIED |
| MLMadewell, LLC | Houston | TX | — | ◇ UNVERIFIED |
| MLMadhuram, LLC | San Jose | CA | — | ◇ UNVERIFIED |
| MCMadison County Transit | Alhambra | IL | — | ◇ UNVERIFIED |
| MIMadison Industries, INC of Oklahoma | Tulsa | OK | — | ◇ UNVERIFIED |
| MMMadison-smith Machine & Tool CO LLC | Glasgow | KY | — | ◇ UNVERIFIED |
| MSMadon Sheet Metal LLC | Elk Grove Village | IL | — | ◇ UNVERIFIED |
| MRMad River Fabricating LTD | Springfield | OH | — | ◇ UNVERIFIED |
| MIMadruga Iron Works, INC. | Tracy | CA | — | ◇ UNVERIFIED |
| MSMad Science Machining, LLC | Conroe | TX | — | ◇ UNVERIFIED |
| MMMaedges Mini Mart LLC | Alhambra | IL | — | ◇ UNVERIFIED |
| MNMageba North America | Riverside | CA | — | ◇ UNVERIFIED |
| MUMageba Usa, LLC | Pottstown | PA | — | ◇ UNVERIFIED |
| MMMagellan Midstream Partners LP | Wilmington | IL | — | ◇ UNVERIFIED |
| MPMagellan Pipeline CO LLP | Amboy | IL | — | ◇ UNVERIFIED |
| MPMagellan Pipeline CO LP | Prophestown | IL | — | ◇ UNVERIFIED |
| MCMaggie Chacon | El Paso | TX | — | ◇ UNVERIFIED |
| MMMagna Mirrors | Grand Rapids | MI | — | ◇ UNVERIFIED |
| MNMagnatron NC Pattern & Mfg, Inc. | Howell | MI | — | ◇ UNVERIFIED |
| MGMagnet Group | Alpharetta | GA | — | ◇ UNVERIFIED |
| MSMagnetic Screw Machine Products, INC. | Marysville | OH | — | ◇ UNVERIFIED |
| MSMagni-fab Southwest Company, INC. | Howe | TX | — | ◇ UNVERIFIED |
| MEMagnum Equipment CO INC | Stockton | CA | — | ◇ UNVERIFIED |
| MMMagnum Machine, INC. | Grand Junction | CO | — | ◇ UNVERIFIED |
| MAMagoo's Auto Parts | Hilo | HI | — | ◇ UNVERIFIED |
| MJMaguire Jones Boys II, LLC | Sioux Falls | SD | — | ◇ UNVERIFIED |
| MTMaguire Tank, Inc. | Sioux Falls | SD | — | ◇ UNVERIFIED |
| MLMahaan LLC | Plain City | OH | — | ◇ UNVERIFIED |
| MLMahomet Landscape | Mahomet | IL | — | ◇ UNVERIFIED |
| MMMainline Machine, INC. | Lafayette | LA | — | ◇ UNVERIFIED |
| MMMain Machine INC | Concord | CA | — | ◇ UNVERIFIED |
| MMMainstream Manufacturing LLC | Beaumont | TX | — | ◇ UNVERIFIED |
| MSMain Street Fabrications and Manufacturing, LLC | Brooksville | FL | — | ◇ UNVERIFIED |
| MSMain Street Machining LLC | Kersey | PA | — | ◇ UNVERIFIED |
| MSMain Street Motors | East Dundee | IL | — | ◇ UNVERIFIED |
| MBMaintenance Bldg 5 | Schaumburg | IL | — | ◇ UNVERIFIED |
| MMMaintenance & Machinery Erectors, INC. | Mulberry | FL | — | ◇ UNVERIFIED |
| MMMajaskis Machine Shop INC | Royalton | MN | — | ◇ UNVERIFIED |
| MPMajestic Packaging Company | San Leandro | CA | — | ◇ UNVERIFIED |
| MTMajestic Tempe Office | Tempe | AZ | — | ◇ UNVERIFIED |
| MWMajestic Water Spouts, LLC | Mesa | AZ | — | ◇ UNVERIFIED |
| MMMajor Maintenance & Repair Building N1 | Kodiak Base | AK | — | ◇ UNVERIFIED |
| MMMajor Metals, INC. | Houston | TX | — | ◇ UNVERIFIED |
| MWMajor Wire Screen Media LTD | Fife | WA | — | ◇ UNVERIFIED |
| MLMakjohn, L.L.C. | Salt Lake City | UT | — | ◇ UNVERIFIED |
| MCMala Closure Systems, INC. | Petaluma | CA | — | ◇ UNVERIFIED |
| MPMallard Point Development | Downs | IL | — | ◇ UNVERIFIED |
| MFMallasch Fence Supply Steven | Pacoima | CA | — | ◇ UNVERIFIED |
| MEMalmberg Engineeringna INC. | Livermore | CA | — | ◇ UNVERIFIED |
| MVMalta Village of | Malta | IL | — | ◇ UNVERIFIED |
