| LHLorenzo Heating & Cooling | San Jose | CA | — | ◇ UNVERIFIED |
| LOLos Osos Wastewater Plant - Mid Town Pump Station | Los Osos | CA | — | ◇ UNVERIFIED |
| LCLotte Chemical Alabama CORP | Auburn | AL | — | ◇ UNVERIFIED |
| LSLouisiana Safety Systems | Lafayette | LA | — | ◇ UNVERIFIED |
| LCLouisville Cooler Mfg CO | Louisville | KY | — | ◇ UNVERIFIED |
| LCLrc Coil Company | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| LALrg Air Conditioning & Services LLC | Phoenix | AZ | — | ◇ UNVERIFIED |
| LCL&S Compressor Works LLC | Port Huron | MI | — | ◇ UNVERIFIED |
| LMLukjan Metal Products Carolina, INC. | Kings Mountain | NC | — | ◇ UNVERIFIED |
| LILumax Industries INC. | Altoona | PA | — | ◇ UNVERIFIED |
| LCLuminex Corporation | Hayward | CA | — | ◇ UNVERIFIED |
| LHLundy Heating & Air Inc. | Perryville | MO | — | ◇ UNVERIFIED |
| LHLundy Heating & Air Inc. | Perryville | MO | — | ◇ UNVERIFIED |
| LHLuppold Heating & Cooling | Leesport | PA | — | ◇ UNVERIFIED |
| LGLuvata Grenada Llc, Lal Products | Grenada | MS | — | ◇ UNVERIFIED |
| LILuvata INC | San Leandro | CA | — | ◇ UNVERIFIED |
| LEL&w Engineering Plt4 | Blissfield | MI | — | ◇ UNVERIFIED |
| LWL & W Precision Machining LLC | Fremont | CA | — | ◇ UNVERIFIED |
| MMM3 Mfg LLC | Ramona | CA | — | ◇ UNVERIFIED |
| MPM3 Precision LLC Dba K&g Engineering | Santa Maria | CA | — | ◇ UNVERIFIED |
| MIMaccauley Instruments CORP | Chatsworth | CA | — | ◇ UNVERIFIED |
| MSMachine Shop Express | San Diego | CA | — | ◇ UNVERIFIED |
| MCMacintyre CORP. | Hayward | CA | — | ◇ UNVERIFIED |
| MVMac Valves INC | Wixom | MI | — | ◇ UNVERIFIED |
| MAMadera and Beau LLC | Cardiff By the Sea | CA | — | ◇ UNVERIFIED |
| MTMad Tech Diesel Workz LLC | Rancho Cucamonga | CA | — | ◇ UNVERIFIED |
| MAMagna Assembly Piedmont | Piedmont | SC | — | ◇ UNVERIFIED |
| MEMagna Engineered Glass | Holland | MI | — | ◇ UNVERIFIED |
| MIMagna International INC | Lansing | MI | — | ◇ UNVERIFIED |
| MMagna-lakeland | Kentwood | MI | — | ◇ UNVERIFIED |
| MMMagna Mirrors Corporation | Grand Haven | MI | — | ◇ UNVERIFIED |
| MPMagna Powertrain Shelby Township | Utica | MI | — | ◇ UNVERIFIED |
| MAMagnolia Automotive Services-alabama LLC | Madison | AL | — | ◇ UNVERIFIED |
| MBMahle Behr Charleston INC. | North Charleston | SC | — | ◇ UNVERIFIED |
| MBMahle Behr USA INC | Troy | MI | — | ◇ UNVERIFIED |
| MIMahle INC Trumbull Plant | Trumbull | CT | — | ◇ UNVERIFIED |
 Mahle Industrial Thermal Systems America | Grand Rapids | MI | — | ◇ UNVERIFIED |
| MSMajestic Steel USA | Fontana | CA | — | ◇ 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 |
| MMManns Manufacturing | Hubbard | OR | — | ◇ UNVERIFIED |
| MIManufacturers Industrial Group LLC | Athens | TN | — | ◇ UNVERIFIED |
| MIMap Industries Lf, INC. | Panama City | FL | — | ◇ UNVERIFIED |
| MRMarc Refrigeration Manufacturing | Coral Springs | FL | — | ◇ UNVERIFIED |
| MAMargus Auto Electric Exchange INC | Los Angeles | CA | — | ◇ UNVERIFIED |
| MBMartin Barkey Racing Products (mbrp Ltd) | Huntsville, Ontario, Ca | IL | — | ◇ UNVERIFIED |
| MRMartin Refrigeration LLC | Warrensburg | MO | — | ◇ UNVERIFIED |
| MEMaryam Enterprises LLC | Lisle | IL | — | ◇ UNVERIFIED |
| MMMaser Mechanical INC | Simi Valley | CA | — | ◇ UNVERIFIED |
| MRMassey Road Facility | Tyler | TX | — | ◇ UNVERIFIED |
| MPMass Precision Sheetmetal | San Jose | CA | — | ◇ UNVERIFIED |
| MEMaster-bilt Engineered Structures | Sparks | NV | — | ◇ UNVERIFIED |
| MMasterbilt/standex | New Albany | MS | — | ◇ UNVERIFIED |
| MHMaster Holding LLC | Shelby Township | MI | — | ◇ UNVERIFIED |
| MHMatrix Hvacr LLC | Miami | FL | — | ◇ UNVERIFIED |
| MFMaxair Four Seasons Fort Worth Ops | Fort Worth | TX | — | ◇ UNVERIFIED |
| MQMaximum Quality Metal Products INC | Ontario | CA | — | ◇ 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 |
| MUMayekawa U S A, INC | San Antonio | TX | — | ◇ 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 |
| MCMBA Corporation | Saint Francis | WI | — | ◇ UNVERIFIED |
| MLMc63, LLC | Sandwich | IL | — | ◇ UNVERIFIED |
| MEMcardle Enterprises | Charlotte | NC | — | ◇ UNVERIFIED |
| MEMcgraw Edison CO Service Div | Fairfield | NJ | — | ◇ UNVERIFIED |
| MFMcintire Fabricators INC | Mc Intire | IA | — | ◇ UNVERIFIED |
| MVMckenzie Valve & Machining CO | Mckenzie | TN | — | ◇ UNVERIFIED |
| MWMclaughlin Waste Equipment INC | Canyon Country | CA | — | ◇ UNVERIFIED |
| MRMcLeod Racing LLC | Anaheim | CA | — | ◇ UNVERIFIED |
| MCMcmurray Cooling and Heating INC. | Venetia | PA | — | ◇ UNVERIFIED |
| MTMcneilus Truck & Manufacturing INC | Phoenix | AZ | — | ◇ UNVERIFIED |
| MIMcquay International INC | Verona | VA | — | ◇ UNVERIFIED |
| MRMc & R Enterprises INC Dba Bright Sky Industries | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| MBMct Bakersfield LLC Dba Carrier | Fresno | CA | — | ◇ UNVERIFIED |
| MMM.D. Metals, Inc. | Bedford Park | IL | — | ◇ UNVERIFIED |
| MSMean Stamping Industries | Vassar | MI | — | ◇ UNVERIFIED |
| MMMeddco Metals | Hayward | CA | — | ◇ UNVERIFIED |
| MAMedic Air LLC | Santa Ana | CA | — | ◇ UNVERIFIED |
| MIMee Industries,Inc | Azusa | CA | — | ◇ UNVERIFIED |
| MCMelink Corporation | Knoxville | TN | — | ◇ UNVERIFIED |
| MMM&e Machine and Engineering CO | Murrieta | CA | — | ◇ UNVERIFIED |
| MFMem-co Fittings INC | Hampstead | NH | — | ◇ UNVERIFIED |
| MTMendeola Transaxles INC | National City | CA | — | ◇ UNVERIFIED |
| MIMenold, INC | Essington | PA | — | ◇ UNVERIFIED |
| MUMercedes-benz US International - Bibb County Campus | Woodstock | AL | — | ◇ UNVERIFIED |
| MMMericle Mechanical, INC | Placentia | CA | — | ◇ UNVERIFIED |
| MAMeridan Automotive Systems | Ionia | MI | — | ◇ UNVERIFIED |
| MAMeridian Automotive Systems INC | Centralia | IL | — | ◇ UNVERIFIED |
| MHMeritor Heavy Vehicle Systems, LLC | Forest City | NC | — | ◇ UNVERIFIED |
| MIMeritor, INC. | Kennesaw | GA | — | ◇ UNVERIFIED |
 Merlin Industries, INC. | Davie | FL | — | ◇ UNVERIFIED |
| MSMerlin Solar Technologies, INC | San Jose | CA | — | ◇ UNVERIFIED |
| MMMermaid Manufacturing of Southwest Florida, INC. | Fort Myers | FL | — | ◇ UNVERIFIED |
| MEMertz Enterprises INC Dba Db Sales & Service | Garden Grove | CA | — | ◇ UNVERIFIED |
