 Metaltech, INC. | Oklahoma City | OK | — | ◇ UNVERIFIED |
| MTMetal Tech Mfg LLC | Hilton Head Island | SC | — | ◇ UNVERIFIED |
| MTMetal Tronics INC. | Haverhill | MA | — | ◇ UNVERIFIED |
| MDMetalution Deepdraw Tooling and Design, LLC | Holland | MI | — | ◇ UNVERIFIED |
| MVMetal Vision INC. | Smithfield | UT | — | ◇ UNVERIFIED |
| MIMetalworks, Inc. | Lincoln | NE | — | ◇ UNVERIFIED |
| MWMetal Work US, Inc. | Des Plaines | IL | — | ◇ UNVERIFIED |
| MSMetro Sales and Assembly, INC. | Broken Arrow | OK | — | ◇ UNVERIFIED |
| MAMetso Automation USA INC Dba Stonel | Fergus Falls | MN | — | ◇ UNVERIFIED |
| MLMeyerbrooks, LLC | Oregon | WI | — | ◇ UNVERIFIED |
| MAMichael Anthony Jewelers Incorporated | Mount Vernon | NY | — | ◇ UNVERIFIED |
| MSMichigan Steel Industries INC Dba Michigan Steel Strapping | Detroit | MI | — | ◇ UNVERIFIED |
| MIMicrogroup INC | Medway | MA | — | ◇ UNVERIFIED |
| MMMicro Matic Usa, INC | Northridge | CA | — | ◇ UNVERIFIED |
| MMMicro Metl Corporation | Sparks | NV | — | ◇ UNVERIFIED |
| MMMicropoise Measurements Systems LLC (1677010265) | Akron | OH | — | ◇ UNVERIFIED |
| MMicrotome | Colorado Springs | CO | — | ◇ UNVERIFIED |
| MTMicro Tool - Mold INC | Shafer | MN | — | ◇ UNVERIFIED |
| MMMidas Metal Works, LLC | Etna | OH | — | ◇ UNVERIFIED |
| MMMideastern Manufacturing Co* | Knoxville | TN | — | ◇ UNVERIFIED |
| MCMidland Coating Plant | Midland | TX | — | ◇ UNVERIFIED |
| MMMidland Metals Products | Chicago | IL | — | ◇ UNVERIFIED |
| MPMid Park Dba Roadway Construction Products 2 | Leitchfield | KY | — | ◇ UNVERIFIED |
| MFMid-south Fabrications INC | Jemison | AL | — | ◇ UNVERIFIED |
| MMMidsouth Machine & Welding LLC | Jackson | TN | — | ◇ UNVERIFIED |
| MPMidsouth Paving, INC. - Montgomery Shop | Montgomery | AL | — | ◇ UNVERIFIED |
| MMMid-state Machine & Fabricating Corporation | Bartow | FL | — | ◇ UNVERIFIED |
| MMMid-state Machining INC | Henderson | TN | — | ◇ UNVERIFIED |
| MMMid-State Metal Works | Blaine | MN | — | ◇ UNVERIFIED |
| MHMidwesco Holdings, Inc. | Joliet | IL | — | ◇ UNVERIFIED |
| MMMidwest Manufacturing and Mechanical INC | Nashwauk | MN | — | ◇ UNVERIFIED |
 Midwest Metal Fabrication LLC | Alda | NE | — | ◇ UNVERIFIED |
| MMMidwest Metal Fabricators, LLC | Wapakoneta | OH | — | ◇ UNVERIFIED |
| MMMidwest Metal Works, LLC | Sparta | MO | — | ◇ 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 |
| MOMike Owen Fabrication | Bakersfield | CA | — | ◇ UNVERIFIED |
| MIMikris, INC. | Menomonee Falls | WI | — | ◇ UNVERIFIED |
| MMMiktin Metals, Inc. | Twinsburg | OH | — | ◇ UNVERIFIED |
| MIMiller Industrial | Kokomo | IN | — | ◇ UNVERIFIED |
| MMMiller & Mapco Hi Tech Fab, LLC | Lexington | OH | — | ◇ UNVERIFIED |
| MMMiller Method Imports INC. | Miami Beach | FL | — | ◇ UNVERIFIED |
| MMMiller Mfg CORP | Nappanee | IN | — | ◇ UNVERIFIED |
| MCMills CO | Upper Sandusky | OH | — | ◇ UNVERIFIED |
| MIMillville Iron Works Co., INC. | Millville | NJ | — | ◇ UNVERIFIED |
| MWMineral Wells | Mineral Wells | TX | — | ◇ UNVERIFIED |
| MMMinnesota Metal Fabrications INC. | Minneapolis | MN | — | ◇ UNVERIFIED |
| MMMinnesota Metals INC | Spring Valley | MN | — | ◇ UNVERIFIED |
