| MCMills CO | Upper Sandusky | OH | — | ◇ UNVERIFIED |
| MIMillville Iron Works Co., INC. | Millville | NJ | — | ◇ UNVERIFIED |
| MWMineral Wells | Mineral Wells | TX | — | ◇ UNVERIFIED |
 Minestone Construction | Hillsborough | NJ | — | ◇ UNVERIFIED |
| MMMinnesota Metal Fabrications INC. | Minneapolis | MN | — | ◇ UNVERIFIED |
| MMMinnesota Metals INC | Spring Valley | MN | — | ◇ UNVERIFIED |
| MBMiranda Bros Iron Works LLC | Oxnard | CA | — | ◇ UNVERIFIED |
| MCMiratech Corporation | Prior Lake | MN | — | ◇ UNVERIFIED |
| MIMission Iron Works | Pacoima | CA | — | ◇ UNVERIFIED |
| MTMission Tool & Mfg CO INC | Hayward | CA | — | ◇ UNVERIFIED |
| MVMission Viejo Ornamental Iron,r Honarvar | Rancho Sta Margarita | CA | — | ◇ UNVERIFIED |
| MLMississippi Laser, Inc. | Stockton | IA | — | ◇ UNVERIFIED |
| MOMissouri Ornamental Iron Company, INC. | University City | MO | — | ◇ 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 |
| 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 |
| MMM & M Contractors | Aberdeen | WA | — | ◇ UNVERIFIED |
| MIMm Industries, INC. | Salem | OH | — | ◇ UNVERIFIED |
| MTMmi Tank and Industrial Services, INC. | Cheyenne | WY | — | ◇ UNVERIFIED |
| MTMmi Tank & Industrial Services, INC. | Avondale | AZ | — | ◇ UNVERIFIED |
| MMM & M Manufacturing, INC. | Tulsa | OK | — | ◇ UNVERIFIED |
| MMM & M Manufacturing, INC. | Tulsa | OK | — | ◇ UNVERIFIED |
| MMM & M Welding & Fabricating, INC. | Slippery Rock | PA | — | ◇ UNVERIFIED |
| MPMobile Pulley Marine Services | Mobile | AL | — | ◇ UNVERIFIED |
| MLMobilitybridge LLC | Dayton | OH | — | ◇ UNVERIFIED |
| MIMocorp INC | Elk River | MN | — | ◇ UNVERIFIED |
| MIMocorp INC | Anoka | MN | — | ◇ UNVERIFIED |
| MFModel Finishing Co/phila | Philadelphia | PA | — | ◇ UNVERIFIED |
| MEModern Equipment Company | Omaha | NE | — | ◇ 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 |
| MMModern Mechanical Fabrication INC | Champlain | NY | — | ◇ UNVERIFIED |
 Modern Metal Solutions LLC | Hudson | NH | — | ◇ UNVERIFIED |
| MCModineer Coatings Division South | South Bend | IN | — | ◇ UNVERIFIED |
 Modine Manufacturing CO | Clinton | TN | — | ◇ UNVERIFIED |
| MMModular Mining Systems, INC. | Tucson | AZ | — | ◇ UNVERIFIED |
| MMMoffat Mine Service INC. | Craig | CO | — | ◇ UNVERIFIED |
| MMMohawk Metal Company | Eugene | OR | — | ◇ UNVERIFIED |
| MMMolt Manufacturing, INC. | Spalding | NE | — | ◇ UNVERIFIED |
| MCMomomi CO LTD Dba Tru-form Metals | Livermore | CA | — | ◇ UNVERIFIED |
| MHMonarch Hardware Manufacturing | Shepherdsville | KY | — | ◇ UNVERIFIED |
| MPMonitor Products INC | Hauppauge | NY | — | ◇ UNVERIFIED |
| MSMonroe Staffing Services, LLC | Hudson | MA | — | ◇ UNVERIFIED |
| MLMonrreal-Macias LLC | Bell Gardens | CA | — | ◇ UNVERIFIED |
| MMMonster Mud Pits INC. | Fort Stockton | TX | — | ◇ UNVERIFIED |
| MMMonster Mud Pits INC. | Mentone | TX | — | ◇ UNVERIFIED |
| MFMontell Fabrication and Rebuild, LLC | Deming | NM | — | ◇ UNVERIFIED |
| MMMontel Metals | Jeffersonville | IN | — | ◇ UNVERIFIED |
| MTMontgomery Tank of Louisiana INC | Montgomery | LA | — | ◇ UNVERIFIED |
| MFMoon Fabricating Corporation | Kokomo | IN | — | ◇ UNVERIFIED |
| MMMorehead Machining, INC. | Morehead | KY | — | ◇ UNVERIFIED |
| MFMorgan Fabrication | Oklahoma City | OK | — | ◇ UNVERIFIED |
| MPMorgan Performance | Spring | TX | — | ◇ UNVERIFIED |
| MOMorgan's Outdoor Living INC. | Concord | CA | — | ◇ UNVERIFIED |
| MIMoritz International INC. (0370010048) | Mansfield | OH | — | ◇ UNVERIFIED |
| MIMorrill Industries, INC | Escalon | CA | — | ◇ UNVERIFIED |
| MMMorris Metal Shaping LLC | Emeryville | CA | — | ◇ UNVERIFIED |
| MMMortech Manufacturing | Azusa | CA | — | ◇ UNVERIFIED |
| MBMosier Brothers | Woodlake | CA | — | ◇ UNVERIFIED |
| MCMotor City Racks, LLC | Laurens | SC | — | ◇ UNVERIFIED |
| MFMountain Forge Inc, the | Truckee | CA | — | ◇ UNVERIFIED |
| MPMountain Performance INC | Draper | UT | — | ◇ UNVERIFIED |
| MAMoyer Auto Body/dublin | Dublin | PA | — | ◇ UNVERIFIED |
| MDMoz Designs INC | Livermore | CA | — | ◇ UNVERIFIED |
| MWMpack Winthrop Corporation | Alsip | IL | — | ◇ UNVERIFIED |
| MMM.P.H. Metals Processing Inc. | Mechanicville | NY | — | ◇ UNVERIFIED |
| MMMp Magnetics | Fort Worth | TX | — | ◇ UNVERIFIED |
| MMMpv Morganton Pressure Vessels, LLC | Bay Minette | AL | — | ◇ UNVERIFIED |
| MMMpv Morganton Pressure Vessels North Carolina, LLC | Bay Minette | AL | — | ◇ UNVERIFIED |
| MOMq Ornamental | Chula Vista | CA | — | ◇ UNVERIFIED |
| MBMr. Bronze CO. LLC | Miami Springs | FL | — | ◇ UNVERIFIED |
| MLMsatt, LLC | Richmond | IL | — | ◇ UNVERIFIED |
| MSM. Swift & Sons Gold Leaf | Hartford | CT | — | ◇ UNVERIFIED |
| MOMueller Ornamental Iron Works, INC. | Elk Grove Village | IL | — | ◇ UNVERIFIED |
| MSMulich Services LLC | Bonner Springs | KS | — | ◇ UNVERIFIED |
| MMMulti Metals Company, INC. | Greensburg | PA | — | ◇ UNVERIFIED |
| MMMunns Manufacturing INC. | Tremonton | UT | — | ◇ UNVERIFIED |
| MIMunroe, Incorporated | Pittsburgh | PA | — | ◇ UNVERIFIED |
| MLMurphree Leasing LLC | Bristol | WI | — | ◇ UNVERIFIED |
| MIMurray's Iron Works INC | Commerce | CA | — | ◇ UNVERIFIED |
| MMMusic's Metal Works, LLC. | Dayton | OH | — | ◇ UNVERIFIED |
| MTMuskogee Technology | Atmore | AL | — | ◇ UNVERIFIED |
| MM+v | El Paso | TX | — | ◇ UNVERIFIED |
| MWM - W Fab INC. Dba Ace Fabrication and Machine, in | Smithfield | NC | — | ◇ UNVERIFIED |
| MIMwi INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| MFMyers Fabrication INC | Eugene | OR | — | ◇ UNVERIFIED |
| MIMyrtle Industries INC | Jackson | MI | — | ◇ UNVERIFIED |
| MIMy-signguy.com, INC. | Glenview | IL | — | ◇ UNVERIFIED |
| NMNambe Mills, INC. | Espanola | NM | — | ◇ UNVERIFIED |
