| MWMartin Welding and Fabrication LLC | Contoocook | NH | — | ◇ UNVERIFIED |
| MCMauser Container Services | Blacklick | OH | — | ◇ UNVERIFIED |
| MIMaxey Industries, Inc. | Shelbyville | KY | — | ◇ UNVERIFIED |
| MGMax G Bradley Jr LLC | Tipton | IN | — | ◇ UNVERIFIED |
| MHMckee Holdings LLC | Sandy | OR | — | ◇ UNVERIFIED |
| MPM&c Precision Machining INC | Hawthorne | CA | — | ◇ UNVERIFIED |
| MPM&D Precision Machining, Inc. | Garden Grove | CA | — | ◇ UNVERIFIED |
| MSMeaden Screw Products CO | Burr Ridge | IL | — | ◇ UNVERIFIED |
| MTMeca & Technology Machine INC | Green Bay | WI | — | ◇ UNVERIFIED |
| MMedtronic | Santa Rosa | CA | — | ◇ UNVERIFIED |
| MEMerrill Engineering & Integration | Saginaw | MI | — | ◇ UNVERIFIED |
| MIMerrill Iron & Steel South | Springfield | MO | — | ◇ UNVERIFIED |
| MMMesser Machine - Mfg INC | Windom | MN | — | ◇ UNVERIFIED |
| MLMetalCraft LLC | Bantam | CT | — | ◇ UNVERIFIED |
| MSMetal Seal & Products, INC. (0243161213) | Willoughby | OH | — | ◇ UNVERIFIED |
| MTMetal Tech, INC. | Fargo | ND | — | ◇ UNVERIFIED |
| MWMetal Works INC. | Spencer | IA | — | ◇ UNVERIFIED |
| MMMetric Machining INC | Riverside | CA | — | ◇ UNVERIFIED |
| MMMexia Main, East, and West Plants | Mexia | TX | — | ◇ UNVERIFIED |
 Mgt Manufacturing LLC | Springville | AL | — | ◇ UNVERIFIED |
| Mgt Manufacturing LLC | Springville | AL | — | ◇ UNVERIFIED |
| MEMicrodynamic Engineering LLC | Livonia | MI | — | ◇ UNVERIFIED |
| MMMicro Machine and Design, INC. | Lebanon | PA | — | ◇ UNVERIFIED |
| MMMicromatics Machine CO | Hollis | NH | — | ◇ UNVERIFIED |
| MMMicropoise Measurements Systems LLC (1677010265) | Akron | OH | — | ◇ UNVERIFIED |
| MTMicro Thread Corporation | Chicago | IL | — | ◇ UNVERIFIED |
| MIMictron INC | Sarasota | FL | — | ◇ UNVERIFIED |
| MDMi Dept/natural Resources and Environment | River Rouge | MI | — | ◇ UNVERIFIED |
| MSMid South Industrial INC. | Gregory | TX | — | ◇ UNVERIFIED |
| MPMidsouth Paving, INC. - Montgomery Shop | Montgomery | AL | — | ◇ UNVERIFIED |
| MMMid-state Machine & Fabricating Corporation | Lakeland | FL | — | ◇ UNVERIFIED |
| MMMid-states Mechanical Services INC | Mankato | MN | — | ◇ UNVERIFIED |
| MAMidwest Automatic Products, INC. | Melrose | MN | — | ◇ UNVERIFIED |
| MAMidwest Automation, INC. | Heavener | OK | — | ◇ UNVERIFIED |
| MMMidwest Manufacturing Corporation | Omaha | NE | — | ◇ UNVERIFIED |
| MSMidwest Screw Products INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| MSMiguel's Sheet Metal | Los Angeles | CA | — | ◇ UNVERIFIED |
| MMMikco Manufacturing Technology, INC. | Wallingford | CT | — | ◇ UNVERIFIED |
| MTMike Tran and Yen Kim Ta, as Trustees of the Tran Family Trust | San Jose | CA | — | ◇ UNVERIFIED |
| MMilacron | Mcpherson | KS | — | ◇ UNVERIFIED |
| MAMilford Automatics INC | Milford | CT | — | ◇ UNVERIFIED |
 Miller Welding & Machine CO | Brookville | PA | — | ◇ UNVERIFIED |
| MMMill Man Steel INC | Fontana | CA | — | ◇ UNVERIFIED |
| MMMinnesota Metalworks INC | Perham | MN | — | ◇ UNVERIFIED |
| MMMinnotte Manufacturing Corporation | Trafford | PA | — | ◇ UNVERIFIED |
| MUMinova USA INC. | Proctorville | OH | — | ◇ UNVERIFIED |
| MKM K Chambers Co-north Branch | North Branch | MI | — | ◇ UNVERIFIED |
| MIMkt Innovations | Placentia | CA | — | ◇ UNVERIFIED |
| MWMk Welding & Fabrication, INC. | Waynesville | OH | — | ◇ UNVERIFIED |
| MMModern Makers Home and Bath Provisions LLC | Grand Rapids | MI | — | ◇ UNVERIFIED |
| MWModern Welding Company (0145020338) | Newark | OH | — | ◇ UNVERIFIED |
| MWModern Welding CO of Kentucky INC | War Creek | KY | — | ◇ UNVERIFIED |
| MMModine Mfg/laporte/pemberville | La Porte | IN | — | ◇ UNVERIFIED |
| MMMohan Machining and Manufacturing | Sacramento | CA | — | ◇ UNVERIFIED |
| MMMonarch Marking Systems | Miamisburg | OH | — | ◇ UNVERIFIED |
| MMMontgomery Metal Craft INC | Springfield | MO | — | ◇ UNVERIFIED |
| MFMoore Flame Cutting Company | Bloomfield Hills | MI | — | ◇ UNVERIFIED |
| MFMoore's Fiberglass, INC. | Walstonburg | NC | — | ◇ UNVERIFIED |
| MMMoorhead Machinery - Boiler CO | Minneapolis | MN | — | ◇ UNVERIFIED |
| MBMorgan Bronze Products INC | Wauconda | IL | — | ◇ UNVERIFIED |
| MMMorrell Manufacturing LLC | Cushing | MN | — | ◇ UNVERIFIED |
| MIMotek-team Industries INC | Cambridge | MN | — | ◇ UNVERIFIED |
| MIMotoman, INC. | Irvine | CA | — | ◇ UNVERIFIED |
| MEM&r Engineering CO Dba S&h Glenco Manufacturing | Ontario | CA | — | ◇ UNVERIFIED |
| MEM&r Engineering Company Dba D&b Plastics | Orange | CA | — | ◇ UNVERIFIED |
| MFMT Fabrication, Inc. | Benton | IL | — | ◇ UNVERIFIED |
| MLMtm LLC | San Jose | CA | — | ◇ UNVERIFIED |
| MRMueller Refrigeration Products Company | Hartsville | TN | — | ◇ UNVERIFIED |
 Multix Precision Manufacturing Inc | Monrovia | IN | — | ◇ UNVERIFIED |
| MCMurphy Consolidated Industries INC | Follansbee | WV | — | ◇ UNVERIFIED |
| MDMyers Di Corporation | Barnegat | NJ | — | ◇ UNVERIFIED |
| MMMyers Mixers, LLC | Cudahy | CA | — | ◇ UNVERIFIED |
| NPNapa Pipe CORP | Napa | CA | — | ◇ UNVERIFIED |
| NFNash Fabricators INC | Vista | CA | — | ◇ UNVERIFIED |
| NBNational Butane Gas Company, INC. | Memphis | TN | — | ◇ UNVERIFIED |
| NONational Oilwell Varco | San Angelo | TX | — | ◇ UNVERIFIED |
| NWNational Welding Corporation | Midvale | UT | — | ◇ UNVERIFIED |
| NGNci Group INC. | Marietta | GA | — | ◇ UNVERIFIED |
| NINc Industries | Temecula | CA | — | ◇ UNVERIFIED |
| NENeco Engineering INC | Blaine | MN | — | ◇ UNVERIFIED |
| NHNeil H. Daniels, INC. | Ascutney | VT | — | ◇ UNVERIFIED |
| NINemco INC. | Feasterville Trevose | PA | — | ◇ UNVERIFIED |
| NINeometal INC | Oakdale | CA | — | ◇ UNVERIFIED |
| NINeufeldt Industrial Services INC Dba Neufab | Red Wing | MN | — | ◇ UNVERIFIED |
| NTNewberry Tanks and Equipment, LLC | Memphis | TN | — | ◇ UNVERIFIED |
| NINewfield Industries INC. | Tulsa | OK | — | ◇ UNVERIFIED |
| NTNew Technology Precision Machining Co., INC. | Jupiter | FL | — | ◇ UNVERIFIED |
 New Vision Industries INC. | Endicott | NY | — | ◇ UNVERIFIED |
| NMNichols Material Handling LLC | Novi | MI | — | ◇ UNVERIFIED |
| NFNippon Fusso America INC | Hayward | CA | — | ◇ UNVERIFIED |
| NINoll Incorporated | San Luis Obispo | CA | — | ◇ UNVERIFIED |
| NCNooter Corp-nooter CORP | Saint Louis | MO | — | ◇ UNVERIFIED |
| NANorth American Construction Services, LLC | Birmingham | AL | — | ◇ UNVERIFIED |
| NANorth American Construction Services, LTD. | Birmingham | AL | — | ◇ UNVERIFIED |
| NSNorthern Screw Machine Company INC | Saint Paul | MN | — | ◇ UNVERIFIED |
| NSNorthern Swiss Products LLC | West Branch | MI | — | ◇ UNVERIFIED |
| NMNorthstar Metalworks, INC | Brainerd | MN | — | ◇ UNVERIFIED |
| NSNorthstar Steel Fab. INC | Rhinelander | WI | — | ◇ UNVERIFIED |
| NSNorthwest Swiss-matic, LLC | Crystal | MN | — | ◇ UNVERIFIED |
| NNov | Dayton | OH | — | ◇ UNVERIFIED |
