| MFMACI Fabricators, LLC | Columbiana | OH | — | ◇ UNVERIFIED |
 Mac Industries | Fontana | CA | — | ◇ UNVERIFIED |
| MCMaclean Curtis, L.l.c. | Cornelius | NC | — | ◇ UNVERIFIED |
| MCMaclean-fogg Component Solutions, INC. Dba Maclean | Cornelius | NC | — | ◇ UNVERIFIED |
| MMMac Machine, LLC | Pauls Valley | OK | — | ◇ UNVERIFIED |
| MRMAC RAK, Inc. | Moberly | MO | — | ◇ UNVERIFIED |
| MMMadar Metal Fabricating LLC | Lansing | MI | — | ◇ UNVERIFIED |
 Maddox Industries, INC. | Monroe | GA | — | ◇ UNVERIFIED |
| MLMadewell, LLC | Houston | TX | — | ◇ UNVERIFIED |
| MHMad House Customs LLC | Denver | NC | — | ◇ UNVERIFIED |
| MLMadhuram, LLC | San Jose | CA | — | ◇ UNVERIFIED |
| MIMadison Industries, INC of Oklahoma | Tulsa | OK | — | ◇ UNVERIFIED |
| MMMadison Manufacturing Inc. | Bremen | IN | — | ◇ UNVERIFIED |
| MMMadison-smith Machine & Tool CO LLC | Glasgow | KY | — | ◇ UNVERIFIED |
| MTMadison Tooling Solutions CORP. | Painesville | OH | — | ◇ UNVERIFIED |
| MRMad River Fabricating LTD | Springfield | OH | — | ◇ UNVERIFIED |
| MIMadruga Iron Works, INC. | Tracy | CA | — | ◇ UNVERIFIED |
| MSMad Science Machining, LLC | Conroe | TX | — | ◇ UNVERIFIED |
| MIMaf Industries | Traver | CA | — | ◇ UNVERIFIED |
| MDMagalee Designs, LLC | Eugene | OR | — | ◇ UNVERIFIED |
| MNMageba North America | Riverside | CA | — | ◇ UNVERIFIED |
| MUMageba Usa, LLC | Pottstown | PA | — | ◇ UNVERIFIED |
| MCMaggie Chacon | El Paso | TX | — | ◇ UNVERIFIED |
| MRMagical Rubbish | Moses Lake | WA | — | ◇ UNVERIFIED |
| MLMagico LLC | Hayward | CA | — | ◇ UNVERIFIED |
| MMagnaloy | Alpena | MI | — | ◇ UNVERIFIED |
| MMMagna Mirrors | Grand Rapids | MI | — | ◇ UNVERIFIED |
| MMMagna-tech Manufacturing, LLC | Lincolnton | NC | — | ◇ UNVERIFIED |
| MNMagnatron NC Pattern & Mfg, Inc. | Howell | MI | — | ◇ UNVERIFIED |
| MSMagnetic Sales & Manufacturing CO. INC | Tucson | AZ | — | ◇ UNVERIFIED |
| MSMagnetic Screw Machine Products, INC. | Marysville | OH | — | ◇ UNVERIFIED |
| MSMagnetic Specialties INC | Clackamas | OR | — | ◇ UNVERIFIED |
| MSMagni-fab Southwest Company, INC. | Howe | TX | — | ◇ UNVERIFIED |
| MMMagnum Machine, INC. | Grand Junction | CO | — | ◇ UNVERIFIED |
| MMMagnum Magnetics | Caldwell | OH | — | ◇ UNVERIFIED |
| MSMagnum Steel Works, Inc | Mount Vernon | IL | — | ◇ UNVERIFIED |
| MAMagoo's Auto Parts | Hilo | HI | — | ◇ UNVERIFIED |
| MEMaguire Equipment INC | Hyde Park | MA | — | ◇ UNVERIFIED |
| MLMahaan LLC | Plain City | OH | — | ◇ UNVERIFIED |
| MIMaher Industries | Easthampton | MA | — | ◇ UNVERIFIED |
| MAMaier America, LLC | Norcross | GA | — | ◇ UNVERIFIED |
| MSMainely Sandblasting | Jay | ME | — | ◇ UNVERIFIED |
| MLMainline LLC | Shelby Gap | KY | — | ◇ UNVERIFIED |
| MMMainline Machine, INC. | Lafayette | LA | — | ◇ UNVERIFIED |
| MTMainline Tool and Grind INC | Westfield | MA | — | ◇ UNVERIFIED |
| MMMain Machine INC | Concord | CA | — | ◇ UNVERIFIED |
| MSMain St. Machine & Repair LLC | Saint Paul | OR | — | ◇ UNVERIFIED |
| MMMainstream Manufacturing LLC | Beaumont | TX | — | ◇ UNVERIFIED |
| MSMain Street Fabrications and Manufacturing, LLC | Brooksville | FL | — | ◇ UNVERIFIED |
| MSMain Street Machining LLC | Kersey | PA | — | ◇ UNVERIFIED |
| MMMaintenance & Machinery Erectors, INC. | Mulberry | FL | — | ◇ UNVERIFIED |
| MMMajaskis Machine Shop INC | Royalton | MN | — | ◇ UNVERIFIED |
| MMMajestic Metal Works INC | Sachse | TX | — | ◇ UNVERIFIED |
| MWMajestic Water Spouts, LLC | Mesa | AZ | — | ◇ UNVERIFIED |
| MMMajor Maintenance & Repair Building N1 | Kodiak Base | AK | — | ◇ UNVERIFIED |
| MMMajor Metals, INC. | Houston | TX | — | ◇ UNVERIFIED |
| MCMajX CNC | Tempe | AZ | — | ◇ UNVERIFIED |
| MLMakjohn, L.L.C. | Salt Lake City | UT | — | ◇ UNVERIFIED |
| MCMala Closure Systems, INC. | Petaluma | CA | — | ◇ UNVERIFIED |
| MIMallin Industries, LLC | Fairfield | AL | — | ◇ UNVERIFIED |
| MEMalmberg Engineeringna INC. | Livermore | CA | — | ◇ UNVERIFIED |
| MFMalm Fireplaces INC | Santa Rosa | CA | — | ◇ UNVERIFIED |
| MMalo | Tulsa | OK | — | ◇ UNVERIFIED |
| MLM & L Precision Machining, Inc. | Morgan Hill | CA | — | ◇ UNVERIFIED |
| MPMance Plating Company | Imperial | PA | — | ◇ UNVERIFIED |
| MDMan Diesel & Turbo North America, INC. | Prattville | AL | — | ◇ UNVERIFIED |
| MAM and M Finishers INC | Seatac | WA | — | ◇ UNVERIFIED |
| MSMangels Sheet Metal, INC | Alexandria | LA | — | ◇ UNVERIFIED |
| MSManheim Specialty Machine, Incorporated | Manheim | PA | — | ◇ UNVERIFIED |
| MMManitou Manufacturing Company | White Bear Lake | MN | — | ◇ UNVERIFIED |
| MNManitou North America LLC | West Bend | WI | — | ◇ UNVERIFIED |
| MLManitowoc Lifts and Manufacturing, LLC | Dekalb | IL | — | ◇ UNVERIFIED |
| MEManiva Engineering | Miami Gardens | FL | — | ◇ UNVERIFIED |
| MFMann's Fabrication & Welding Inc. | Columbus | OH | — | ◇ UNVERIFIED |
| MWManns Welding and Machine LLC | Jerseyville | IL | — | ◇ UNVERIFIED |
| MGManpower Group | Amarillo | TX | — | ◇ UNVERIFIED |
| MIManpower INC | Camden | AR | — | ◇ UNVERIFIED |
| MAMansell and Associates, LLC | Tuscumbia | AL | — | ◇ UNVERIFIED |
| MMMansfield Metal Solutions LLC | Ontario | CA | — | ◇ UNVERIFIED |
| MWMansfield Welding Services LLC | Oakwood | OH | — | ◇ UNVERIFIED |
| MIManufab, INC. | Bay Saint Louis | MS | — | ◇ UNVERIFIED |
| MLManufab, LLC | Rexburg | ID | — | ◇ UNVERIFIED |
| MTManufacturing Techniques INC | Ham Lake | MN | — | ◇ UNVERIFIED |
| MIManzke Investments, Inc. | Escondido | CA | — | ◇ UNVERIFIED |
| MWManz Work, INC. | Orlando | FL | — | ◇ UNVERIFIED |
| MEMape Engineering INC. | Colton | CA | — | ◇ UNVERIFIED |
| MPMapleton Properties LLC | Spanish Fork | UT | — | ◇ UNVERIFIED |
| MMMaplewood Machine | North Dartmouth | MA | — | ◇ UNVERIFIED |
| MEMarathon Equipment Company | Yerington | NV | — | ◇ UNVERIFIED |
| MMMarble Machine, INC. | Danville | IL | — | ◇ UNVERIFIED |
| MHMarc Holt | San Diego | CA | — | ◇ UNVERIFIED |
| MMMarco Machine LLC | Morgantown | WV | — | ◇ UNVERIFIED |
| MMMarco Manufacturing CO. | Akron | OH | — | ◇ UNVERIFIED |
| MHMargo Hinkel | San Francisco | CA | — | ◇ UNVERIFIED |
| MBMaria Barath Dba Danworth Manufacturing CO | Hayward | CA | — | ◇ UNVERIFIED |
| MMMarietta Magnetics LLC | Marietta | OH | — | ◇ UNVERIFIED |
| MWMarietta Welding, LLC | Marietta | GA | — | ◇ UNVERIFIED |
| MMMari Manufacturing & Engineering, INC. | West Chicago | IL | — | ◇ UNVERIFIED |
| MEMarine Equipment Supply LLC | Chula Vista | CA | — | ◇ UNVERIFIED |
| MFMarine Fab & Repair, INC | Houma | LA | — | ◇ UNVERIFIED |
