| MIMec INC. | Byron Center | MI | — | ◇ UNVERIFIED |
| MIMec INC. | Wayland | MI | — | ◇ UNVERIFIED |
| MMMedalist Mfg. INC. | Pella | IA | — | ◇ UNVERIFIED |
| MBMedia Blast & Abrasives INC | Brea | CA | — | ◇ UNVERIFIED |
| MMMedieval Metalwerx, LLC | Mayer | MN | — | ◇ UNVERIFIED |
| MFMedway Flower LLC | Medway | MA | — | ◇ UNVERIFIED |
| MMMeldrum Mechanical Services, INC. | Toledo | OH | — | ◇ UNVERIFIED |
| MMMelfred Manufacturing Company, INC. | Pittsburgh | PA | — | ◇ UNVERIFIED |
| MEMellinger Engineering Group, LLC | Sonoma | CA | — | ◇ UNVERIFIED |
| M2Mello 212 LLC | Northlake | TX | — | ◇ UNVERIFIED |
| MCMemphis Can Company* | Memphis | TN | — | ◇ UNVERIFIED |
| MOMen of Steel Enterprises, LLC | Bensalem | PA | — | ◇ UNVERIFIED |
| MMMercury Metal | Eugene | OR | — | ◇ UNVERIFIED |
| MPMerge Properties, LLC | Roca | NE | — | ◇ UNVERIFIED |
| MBMetal Benders | Salisbury | NC | — | ◇ UNVERIFIED |
| MBMetal Bending Corporation | Anaheim | CA | — | ◇ UNVERIFIED |
| MBMetal Boutique, LLC | Dallas | TX | — | ◇ UNVERIFIED |
| MCMetal Cleaning and Fininshing | Tulsa | OK | — | ◇ UNVERIFIED |
| MCMetal Container Fabrication Faclty | Oklahoma City | OK | — | ◇ UNVERIFIED |
| MEMetal Equipment of Pr CORP | Catano | PR | — | ◇ UNVERIFIED |
| MIMetal Impressions, Inc. | Pittsboro | NC | — | ◇ UNVERIFIED |
| MMMetal Militia, INC. | Jacksonville | FL | — | ◇ UNVERIFIED |
| MMMetal Moulding Corporation | Madison | TN | — | ◇ UNVERIFIED |
| MMMetal Movers | Miami | FL | — | ◇ UNVERIFIED |
| MOMetal One LLC | Lees Summit | MO | — | ◇ UNVERIFIED |
| MOMetal Ops LLC | Tampa | FL | — | ◇ UNVERIFIED |
| MIMetalsmith, INC. | Holbrook | NY | — | ◇ UNVERIFIED |
| MNMetals N More INC | Bowling Green | KY | — | ◇ UNVERIFIED |
| MSMetal Spinning Solutions, INC. | Gilbert | AZ | — | ◇ UNVERIFIED |
| MUMetalspray USA INC | Richmond | VA | — | ◇ UNVERIFIED |
| MSMetal Stock | Philadelphia | PA | — | ◇ UNVERIFIED |
| MIMetaltech INC | Sumner | WA | — | ◇ UNVERIFIED |
 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 |
| MSMichigan Steel Industries INC Dba Michigan Steel Strapping | Detroit | MI | — | ◇ UNVERIFIED |
| MMMicro Matic Usa, INC | Northridge | CA | — | ◇ UNVERIFIED |
| MMMicro Metl Corporation | Sparks | NV | — | ◇ 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 |
| MPMid Park Dba Roadway Construction Products 2 | Leitchfield | KY | — | ◇ UNVERIFIED |
| MMMidsouth Machine & Welding LLC | Jackson | TN | — | ◇ 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 |
| MMMiller & Mapco Hi Tech Fab, LLC | Lexington | OH | — | ◇ UNVERIFIED |
| MMMiller Method Imports INC. | Miami Beach | FL | — | ◇ UNVERIFIED |
| MMMiller Mfg CORP | Nappanee | IN | — | ◇ 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 |
| MTMission Tool & Mfg CO INC | Hayward | CA | — | ◇ UNVERIFIED |
| MLMississippi Laser, Inc. | Stockton | IA | — | ◇ UNVERIFIED |
| MPMissouri Pressed Metals INC. | Sedalia | MO | — | ◇ UNVERIFIED |
| MMMisty Mountain Industries INC. | Mountain Home | AR | — | ◇ UNVERIFIED |
| MMiswaco | Tulsa | OK | — | ◇ UNVERIFIED |
| MDMitchell & Duce INC Dba Mitchell Bros | Buena Park | CA | — | ◇ UNVERIFIED |
| MMMitten Manufacturing | Syracuse | NY | — | ◇ UNVERIFIED |
| M1MK 1 Studio, LLC | West Jordan | UT | — | ◇ UNVERIFIED |
| MMMk Middleton INC. | Hereford | TX | — | ◇ 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 |
| MIMm Industries, INC. | Salem | OH | — | ◇ UNVERIFIED |
| MMM & M Manufacturing, INC. | Tulsa | OK | — | ◇ UNVERIFIED |
| MMM & M Manufacturing, INC. | Tulsa | OK | — | ◇ UNVERIFIED |
| MPMobile Pulley Marine Services | Mobile | AL | — | ◇ UNVERIFIED |
| MLMobilitybridge LLC | Dayton | OH | — | ◇ UNVERIFIED |
| MIMocorp INC | Elk River | MN | — | ◇ UNVERIFIED |
| MIMocorp INC | Anoka | MN | — | ◇ UNVERIFIED |
| MFModern Fabricating INC. | San Antonio | TX | — | ◇ UNVERIFIED |
| MFModern Faucet Mfg Company | Los Angeles | CA | — | ◇ UNVERIFIED |
 Modern Machine and Metal Fabricators, INC. | Winston Salem | NC | — | ◇ UNVERIFIED |
| MMModular Mining Systems, INC. | Tucson | AZ | — | ◇ UNVERIFIED |
| MMMoffat Mine Service INC. | Craig | CO | — | ◇ UNVERIFIED |
