| MUMailing US, Inc. | Corona | CA | — | ◇ UNVERIFIED |
| MOMaine Oar and Paddle Company | Orono | ME | — | ◇ UNVERIFIED |
| MCMainline Conveyor Systems INC. | Mooresville | IN | — | ◇ UNVERIFIED |
| MLMainline LLC | Shelby Gap | KY | — | ◇ UNVERIFIED |
| MMMainline Machine, INC. | Lafayette | LA | — | ◇ UNVERIFIED |
| MMMain Machine INC | Concord | CA | — | ◇ UNVERIFIED |
| MSMain St. Machine & Repair LLC | Saint Paul | OR | — | ◇ UNVERIFIED |
| MMMainstream Manufacturing LLC | Beaumont | TX | — | ◇ UNVERIFIED |
| MSMain Street Collectors, INC | Hesperia | CA | — | ◇ 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 |
| 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 |
| MUMakita USA | La Mirada | CA | — | ◇ UNVERIFIED |
| MLMakjohn, L.L.C. | Salt Lake City | UT | — | ◇ UNVERIFIED |
| MTMak Tool & Gage CO INC | Waynesboro | TN | — | ◇ UNVERIFIED |
| MCMala Closure Systems, INC. | Petaluma | CA | — | ◇ UNVERIFIED |
| MFMallasch Fence Supply Steven | Pacoima | 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 |
| MDMan Diesel & Turbo North America, INC. | Prattville | AL | — | ◇ UNVERIFIED |
| MSMangels Sheet Metal, INC | Alexandria | LA | — | ◇ UNVERIFIED |
| MSManheim Specialty Machine, Incorporated | Manheim | PA | — | ◇ UNVERIFIED |
| MAManie're Accessories Limited Liability Company | Lakewood | NJ | — | ◇ UNVERIFIED |
| MMManitou Manufacturing Company | White Bear Lake | MN | — | ◇ UNVERIFIED |
| MLManitowoc Lifts and Manufacturing, LLC | Dekalb | IL | — | ◇ UNVERIFIED |
| MEManiva Engineering | Miami Gardens | FL | — | ◇ UNVERIFIED |
| MMMannington Mills, INC. | San Jose | CA | — | ◇ UNVERIFIED |
| MFMann's Fabrication & Welding Inc. | Columbus | OH | — | ◇ UNVERIFIED |
| MWManns Welding and Machine LLC | Jerseyville | IL | — | ◇ UNVERIFIED |
| MGManpower Group | Amarillo | TX | — | ◇ UNVERIFIED |
| MFManresa Fabric LLC | Westport | CT | — | ◇ UNVERIFIED |
| MAMansell and Associates, LLC | Tuscumbia | AL | — | ◇ UNVERIFIED |
| MMMansfield Metal Solutions LLC | Ontario | CA | — | ◇ UNVERIFIED |
| MWMansfield Welding Services LLC | Oakwood | OH | — | ◇ UNVERIFIED |
| MAMantis Ag Technologies, INC. | Salinas | CA | — | ◇ UNVERIFIED |
| MMMantis Metalcraft LLC | Columbus | OH | — | ◇ UNVERIFIED |
| MIManufab, INC. | Bay Saint Louis | MS | — | ◇ UNVERIFIED |
| MLManufab, LLC | Rexburg | ID | — | ◇ UNVERIFIED |
| MCManufacturing Consulting Services | Sulphur Springs | TX | — | ◇ 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 |
| MCMaplewood Cabinetry | Glendale | AZ | — | ◇ UNVERIFIED |
| MMMaplewood Machine | North Dartmouth | MA | — | ◇ UNVERIFIED |
| MIMarano Ironworks, INC. | Norristown | PA | — | ◇ 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 |
| MMarco-marco | Monett | MO | — | ◇ UNVERIFIED |
| MPMarc Pridmore Designs | Costa Mesa | CA | — | ◇ UNVERIFIED |
| MTMarcy Tool CO INC | Chino | CA | — | ◇ UNVERIFIED |
| MWMarden Woods Investments, LLC | Colton | CA | — | ◇ UNVERIFIED |
| MAMaria a Salazar | Fresno | CA | — | ◇ UNVERIFIED |
| MBMaria Barath Dba Danworth Manufacturing CO | Hayward | CA | — | ◇ UNVERIFIED |
| MRMaria Reynolds LLC | Henderson | NV | — | ◇ UNVERIFIED |
| MMMarietta Magnetics LLC | Marietta | OH | — | ◇ UNVERIFIED |
| MMMari Manufacturing & Engineering, INC. | West Chicago | IL | — | ◇ UNVERIFIED |
| MLMarina Landscape | Lodi | CA | — | ◇ UNVERIFIED |
| MSMarina Security Gate, INC. | Gardena | CA | — | ◇ UNVERIFIED |
| MEMarine Equipment Supply LLC | Chula Vista | CA | — | ◇ UNVERIFIED |
| MFMarine Fab & Repair, INC | Houma | LA | — | ◇ UNVERIFIED |
| MPMarine Parts House | San Dimas | CA | — | ◇ UNVERIFIED |
| MSMarine Systems | Menlo Park | CA | — | ◇ UNVERIFIED |
| MMMarini Manufacturing, Inc. | Racine | WI | — | ◇ UNVERIFIED |
| MMarionat | Bronx | NY | — | ◇ UNVERIFIED |
| MFMaritorena Farms | Rosamond | CA | — | ◇ UNVERIFIED |
| MBMark Body Truck & Equipment CO | Imlay City | MI | — | ◇ UNVERIFIED |
| MMMarkco Machine Works INC. | Odessa | TX | — | ◇ UNVERIFIED |
| MEMark Esperson Farms | Walnut Grove | CA | — | ◇ UNVERIFIED |
| MGMark Godfrey Sr Individual Dba United Iron Works | Orland | CA | — | ◇ UNVERIFIED |
| MSMarking Specialists/Polymer Technologies | Buffalo Grove | IL | — | ◇ UNVERIFIED |
 Markins Enterprise, LLC | Apache Junction | AZ | — | ◇ UNVERIFIED |
| MJMark John Lewallen | Linden | CA | — | ◇ UNVERIFIED |
| MKMark Knoedler | Ijamsville | MD | — | ◇ UNVERIFIED |
| MMMarkle Manufacturing Company of San Antonio | San Antonio | TX | — | ◇ UNVERIFIED |
| MMMark Manufacturing | Saint Paul | MN | — | ◇ UNVERIFIED |
| MPMark Peiser Manufacturing, Inc. | Tavares | FL | — | ◇ UNVERIFIED |
| MDMarks Design & Metalworks | Vancouver | WA | — | ◇ UNVERIFIED |
| MMMarks Metal Technology INC | Clackamas | OR | — | ◇ UNVERIFIED |
| MSMark Steel CORP | Salt Lake City | UT | — | ◇ UNVERIFIED |
| MWMarks Welding & Fabricating | Thorsby | AL | — | ◇ UNVERIFIED |
| MTMark Tool & Rubber | Franklin | LA | — | ◇ UNVERIFIED |
| MIMarlite INC | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| MPMarlton Pike Precision | Cherry Hill | NJ | — | ◇ UNVERIFIED |
| MIMaro International Corporation | Tulsa | OK | — | ◇ UNVERIFIED |
| MMMaro Manufacturing, INC. | Tulsa | OK | — | ◇ UNVERIFIED |
| MUMarqAll Uniforms & Graphics | Midvale | UT | — | ◇ UNVERIFIED |
| MMMarquardt & Mueller Machining, INC | Woodstock | IL | — | ◇ UNVERIFIED |
