| MIMahle INC Trumbull Plant | Trumbull | CT | — | ◇ UNVERIFIED |
 Mahle Industrial Thermal Systems America | Grand Rapids | MI | — | ◇ UNVERIFIED |
| MCMajestic Cnc Solutions LLC | Washington | MI | — | ◇ UNVERIFIED |
| MAMajor Armature Co-recycling Div | Chicago | IL | — | ◇ UNVERIFIED |
| MGMakers Garage LLC | Madison Heights | MI | — | ◇ UNVERIFIED |
| MTMall Tooling & Engineering, INC. | Mount Clemens | MI | — | ◇ UNVERIFIED |
| MMM&e Machine and Engineering CO | Murrieta | CA | — | ◇ UNVERIFIED |
| MEMan Energy Solutions USA INC | Pompano Beach | FL | — | ◇ UNVERIFIED |
| MBManhattan Beach Community Church | Manhattan Beach | CA | — | ◇ UNVERIFIED |
| MTManual Transmissions of Muncie LLC | Muncie | IN | — | ◇ UNVERIFIED |
| MIManufacturers Industrial Group LLC | Athens | TN | — | ◇ UNVERIFIED |
| MCMargin CORP | Carmichael | CA | — | ◇ UNVERIFIED |
| MAMargus Auto Electric Exchange INC | Los Angeles | CA | — | ◇ UNVERIFIED |
| MHMarina High School | Marina | CA | — | ◇ UNVERIFIED |
| MVMarina Vista Elementary School | Marina | CA | — | ◇ UNVERIFIED |
| MPMariners Park Village | Torrance | CA | — | ◇ UNVERIFIED |
| MAMark Abolofia | Portland | OR | — | ◇ UNVERIFIED |
| MBMartin Barkey Racing Products (mbrp Ltd) | Huntsville, Ontario, Ca | IL | — | ◇ UNVERIFIED |
| MTMartin Technologies | New Hudson | MI | — | ◇ UNVERIFIED |
| MAMarvel-schebler Aircraft Carburetors LLC | Gibsonville | NC | — | ◇ UNVERIFIED |
| MSMarvel Schebler LLC | Burlington | NC | — | ◇ UNVERIFIED |
| MBMary Browning Family Trust | Inglewood | CA | — | ◇ UNVERIFIED |
| MRMassey Road Facility | Tyler | TX | — | ◇ UNVERIFIED |
| MLMatella LLC | Bellingham | WA | — | ◇ UNVERIFIED |
| MFMaxair Four Seasons Fort Worth Ops | Fort Worth | TX | — | ◇ UNVERIFIED |
| MFMaxion Fumagalli Automotive USA INC | Troy | MI | — | ◇ UNVERIFIED |
| MGMaxton Group INC | Ormond Beach | FL | — | ◇ UNVERIFIED |
| MDMay Day Auto Classic Parts, Inc | Levittown | PA | — | ◇ UNVERIFIED |
| MTMay Trucking | Phelan | CA | — | ◇ UNVERIFIED |
 Mayville Engineering Company INC Dba Mec | Vanderbilt | MI | — | ◇ UNVERIFIED |
| Mayville Engineering Company, INC. (mec) - Virginia Main Plant - Wytheville | Wytheville | VA | — | ◇ UNVERIFIED |
| MEMcardle Enterprises | Charlotte | NC | — | ◇ UNVERIFIED |
| MUMcdonalds's USA LLC | Los Angeles | CA | — | ◇ UNVERIFIED |
| MAMcfadden Apartments | Midway City | CA | — | ◇ UNVERIFIED |
| MAMcfadden Apartments | Midway City | CA | — | ◇ UNVERIFIED |
| MFMcintire Fabricators INC | Mc Intire | IA | — | ◇ UNVERIFIED |
| MRMcLeod Racing LLC | Anaheim | CA | — | ◇ UNVERIFIED |
| MTMcneilus Truck & Manufacturing INC | Phoenix | AZ | — | ◇ UNVERIFIED |
| MRMc & R Enterprises INC Dba Bright Sky Industries | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| MSMean Stamping Industries | Vassar | MI | — | ◇ UNVERIFIED |
| MMM&e Machine and Engineering CO | Murrieta | CA | — | ◇ UNVERIFIED |
| MTMendeola Transaxles INC | National City | CA | — | ◇ UNVERIFIED |
| MDMercado De San Pedro | San Pedro | CA | — | ◇ UNVERIFIED |
| MUMercedes-benz US International - Bibb County Campus | Woodstock | AL | — | ◇ UNVERIFIED |
| MHMercy House Living Center | Ontario | CA | — | ◇ UNVERIFIED |
| MMMercy Medical Center | Redding | CA | — | ◇ UNVERIFIED |
| MRMercy Retirement and Care Center | Oakland | CA | — | ◇ UNVERIFIED |
| MAMeridan Automotive Systems | Ionia | MI | — | ◇ UNVERIFIED |
| MAMeridian Automotive Systems INC | Centralia | IL | — | ◇ UNVERIFIED |
| MMeritor | Oshkosh | WI | — | ◇ UNVERIFIED |
