| MMMidwest Metal Fabricators, LLC | Wapakoneta | OH | — | ◇ UNVERIFIED |
| MMMidwest Metallurgical Laboratory INC | Marshall | MI | — | ◇ UNVERIFIED |
| MMMidwest Metallurgical Laboratory Site | Marshall | MI | — | ◇ UNVERIFIED |
| MMMidwest Metal Works INC | Grove City | MN | — | ◇ UNVERIFIED |
| MMMidwest Metal Works, LLC | Sparta | MO | — | ◇ UNVERIFIED |
| MMMidwest Mold INC | Downey | CA | — | ◇ UNVERIFIED |
 Midwest Precision Tooling and Manufacturing LLC | New Ulm | MN | — | ◇ UNVERIFIED |
| Midwest Precision Tooling and Manufacturing LLC | Hutchinson | MN | — | ◇ UNVERIFIED |
| Midwest Precision Tooling and Manufacturing LLC | Buffalo | MN | — | ◇ UNVERIFIED |
| MPMidwest Production Solutions | Moran | KS | — | ◇ UNVERIFIED |
| MPMidwest Pro Manufacturing INC. | Rock Valley | IA | — | ◇ UNVERIFIED |
| MRMidwest Remanufacturing, LLC | Bedford Park | IL | — | ◇ UNVERIFIED |
| MSMidwest Stairs & Iron, Inc. | Milwaukee | WI | — | ◇ UNVERIFIED |
| MWMidwest Welding Solutions CORP | Waukesha | WI | — | ◇ UNVERIFIED |
| MWMidwest Wrought Iron INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| MBMike Boone Properties, LLC, a California Limited Liability Company | Garden Grove | CA | — | ◇ UNVERIFIED |
| MDMike Dyell Machine Shop & Hydraulics, in | Rialto | CA | — | ◇ UNVERIFIED |
| MOMike Owen Fabrication | Bakersfield | CA | — | ◇ UNVERIFIED |
| MMMike's Machine Shop | Licking | MO | — | ◇ UNVERIFIED |
| MPMike's Performance & Machine Shop | Las Cruces | NM | — | ◇ UNVERIFIED |
| MIMikris, INC. | Menomonee Falls | WI | — | ◇ UNVERIFIED |
| MMMiktin Metals, Inc. | Twinsburg | OH | — | ◇ UNVERIFIED |
| MLMilacron LLC | Tecumseh | MI | — | ◇ UNVERIFIED |
| MHMilans Holdings Enterprises LLC | Doral | FL | — | ◇ UNVERIFIED |
| MMMile-hi Machine, INC. | Arvada | CO | — | ◇ UNVERIFIED |
| MMMiles Machine LLC | Waterboro | ME | — | ◇ UNVERIFIED |
| MMMillcraft Mfg INC | San Jose | CA | — | ◇ UNVERIFIED |
| MMMillennium Machining, INC | Lewiston | UT | — | ◇ UNVERIFIED |
| MPMillennium Power Services, Inc. | Westfield | MA | — | ◇ UNVERIFIED |
| MIMiller Industrial | Kokomo | IN | — | ◇ UNVERIFIED |
| MMMiller Machined Products, INC. | Endeavor | WI | — | ◇ UNVERIFIED |
| MMMiller Machine & Mechanical Inc. | Mexico | NY | — | ◇ UNVERIFIED |
| MMMiller Machine & Mechanical, INC. | Mexico | NY | — | ◇ UNVERIFIED |
| MMMiller Machine Works, LLC | San Diego | CA | — | ◇ UNVERIFIED |
| MMMiller & Mapco Hi Tech Fab, LLC | Lexington | OH | — | ◇ UNVERIFIED |
| MMMiller Method Imports INC. | Miami Beach | FL | — | ◇ UNVERIFIED |
| MMMiller Mfg CORP | Nappanee | IN | — | ◇ UNVERIFIED |
 Miller Welding & Machine Co/maplevale Plt | Brookville | PA | — | ◇ UNVERIFIED |
| MMMill Mechanical, LLC. | Monroe | OH | — | ◇ UNVERIFIED |
| MMMillpro Manufacturing and Engineering | Hawthorne | CA | — | ◇ UNVERIFIED |
| MPMill Pro Manufacturing LLC | Bluffdale | UT | — | ◇ UNVERIFIED |
| MPMill Pro Manufacturing LLC | Bluffdale | UT | — | ◇ UNVERIFIED |
| MCMills CO | Upper Sandusky | OH | — | ◇ UNVERIFIED |
| MIMillville Iron Works Co., INC. | Millville | NJ | — | ◇ UNVERIFIED |
| MMMillwood Metalworks INC | Freeport | MN | — | ◇ UNVERIFIED |
| MEMinas Equity Partners, LLC | Winston Salem | NC | — | ◇ UNVERIFIED |
| MWMineral Wells | Mineral Wells | TX | — | ◇ UNVERIFIED |
| MAMinnesota Ag Power INC Howard Lake | Howard Lake | MN | — | ◇ UNVERIFIED |
| MMMinnesota Machining Incorporated | Wyoming | MN | — | ◇ UNVERIFIED |
| MMMinnesota Metal Fabrications INC. | Minneapolis | MN | — | ◇ UNVERIFIED |
| MMMinnesota Metals INC | Spring Valley | MN | — | ◇ UNVERIFIED |
| MWMinnesota Waterjet INC | Ramsey | MN | — | ◇ UNVERIFIED |
| MPMiratech Prior Lake INC | Prior Lake | MN | — | ◇ UNVERIFIED |
| MTMission Tool & Mfg CO INC | Hayward | CA | — | ◇ UNVERIFIED |
| MLMississippi Laser, Inc. | Stockton | IA | — | ◇ UNVERIFIED |
| MPMissouri Pressed Metals INC. | Sedalia | MO | — | ◇ UNVERIFIED |
| MLMist123, LLC | Phoenix | AZ | — | ◇ UNVERIFIED |
| MMMisty Mountain Industries INC. | Mountain Home | AR | — | ◇ UNVERIFIED |
| MMiswaco | Tulsa | OK | — | ◇ UNVERIFIED |
| MDMitchell & Duce INC Dba Mitchell Bros | Buena Park | CA | — | ◇ UNVERIFIED |
| MMMitchell Machine Works, INC. | Dalton | GA | — | ◇ UNVERIFIED |
| MMMitchell Manufacturing, INC. | Tomball | TX | — | ◇ UNVERIFIED |
| MSMitchell & Son INC | Memphis | TN | — | ◇ UNVERIFIED |
| MMMitten Manufacturing | Syracuse | NY | — | ◇ UNVERIFIED |
| MCMJCA Companies, LLC | Blaine | MN | — | ◇ UNVERIFIED |
| MMMjj Machine Shop | Mission | TX | — | ◇ UNVERIFIED |
| MEMJLJ Enterprises, LLC | Anaheim | CA | — | ◇ UNVERIFIED |
| MJM. J. Machine, INC. | Bridgewater | MA | — | ◇ UNVERIFIED |
 Mjm Manufacturing Solutions INC | Swansea | MA | — | ◇ UNVERIFIED |
| M1MK 1 Studio, LLC | West Jordan | UT | — | ◇ UNVERIFIED |
| MMMkc Machine & Fab, INC. | Carrollton | GA | — | ◇ UNVERIFIED |
| MMMk Middleton INC. | Hereford | TX | — | ◇ UNVERIFIED |
| MSMK Services Corp. | Middleton | MA | — | ◇ UNVERIFIED |
| MIMks Instruments INC. | Colorado Springs | CO | — | ◇ UNVERIFIED |
| MIMks Instruments INC Broomfield | Broomfield | CO | — | ◇ UNVERIFIED |
| MTMk Tools & Abrasives INC | Bell | CA | — | ◇ UNVERIFIED |
| MTMK Trempe Corporation | Sidney | OH | — | ◇ UNVERIFIED |
| MEMl & Es Ventures LLC | Troutdale | OR | — | ◇ UNVERIFIED |
| MEMl & Es Ventures LLC | Wood Village | OR | — | ◇ UNVERIFIED |
| MLM - L Industries INC | Rogers | MN | — | ◇ UNVERIFIED |
 M&l Precision Machining INC | Morgan Hill | CA | — | ◇ UNVERIFIED |
| MMM & M Certified Welding, INC. | Macedonia | OH | — | ◇ UNVERIFIED |
| MGMM Group 1 LLC | Morgan Hill | CA | — | ◇ UNVERIFIED |
| MMM & M Hydraulic CO | Roseville | MN | — | ◇ UNVERIFIED |
| MMmi | Sonora | CA | — | ◇ UNVERIFIED |
| MIMm Industries, INC. | Salem | OH | — | ◇ UNVERIFIED |
| MPMmi Precision LLC | Ramsey | MN | — | ◇ UNVERIFIED |
| MMMmj Machining and Fabricating, INC. | Randleman | NC | — | ◇ UNVERIFIED |
| MMM & M Machining | Salinas | CA | — | ◇ UNVERIFIED |
| MMM & M Manufacturing, INC. | Tulsa | OK | — | ◇ UNVERIFIED |
| MMM & M Manufacturing, INC. | Tulsa | OK | — | ◇ UNVERIFIED |
| MQM&m Quality Grinding | Hodgkins | IL | — | ◇ UNVERIFIED |
| MMM & M Tooling Inc | Patillas | PR | — | ◇ UNVERIFIED |
| MPMobile Pulley Marine Services | Mobile | AL | — | ◇ UNVERIFIED |
| MLMobilitybridge LLC | Dayton | OH | — | ◇ UNVERIFIED |
| MIMocorp INC | Anoka | MN | — | ◇ UNVERIFIED |
| MIMocorp INC | Elk River | MN | — | ◇ UNVERIFIED |
| MIModacam, Incorporated | Denver | NC | — | ◇ UNVERIFIED |
| MFModel Finishing Co/phila | Philadelphia | PA | — | ◇ UNVERIFIED |
| MEModern Equipment Company | Omaha | NE | — | ◇ UNVERIFIED |
