| LILkr INC Dba Raycon Industries | Brea | CA | — | ◇ UNVERIFIED |
| LALoftis Alumi-tec INC | Grand Haven | MI | — | ◇ UNVERIFIED |
| LPL P I, INC. | Eau Claire | WI | — | ◇ UNVERIFIED |
| LULpms USA | Downers Grove | IL | — | ◇ UNVERIFIED |
 L & R Manufacturing Co., INC. | Worcester | MA | — | ◇ UNVERIFIED |
| LFLufkin Foundry & Power Transmission Divisions | Lufkin | TX | — | ◇ UNVERIFIED |
| LALuke a Ashley | Wrightstown | WI | — | ◇ UNVERIFIED |
| LFLynchburg Foundry Llc, D/b/a Archer Creek Foundry | Lynchburg | VA | — | ◇ UNVERIFIED |
| MFMacaulay Foundry INC | Berkeley | CA | — | ◇ UNVERIFIED |
| MEMachine Engineering Technologies, Inc. | South El Monte | CA | — | ◇ UNVERIFIED |
| MSMachine Shop Service, INC | San Mateo | CA | — | ◇ UNVERIFIED |
 Machineworks Manufacturing | Chatsworth | CA | — | ◇ UNVERIFIED |
| MIMagco INC. | Suffolk | VA | — | ◇ UNVERIFIED |
| MMMagnus Metal INC | East Peoria | IL | — | ◇ UNVERIFIED |
| MSMain Street Dairy | Los Angeles | CA | — | ◇ UNVERIFIED |
| MMManchester Metals | North Manchester | IN | — | ◇ UNVERIFIED |
| MAManhole Adjusting Contractors | Monterey Park | CA | — | ◇ UNVERIFIED |
| MMMarcellus Metalcasters INC | Marcellus | MI | — | ◇ UNVERIFIED |
| MEMarkovitz Ents INC Flowline Div | Whiteville | NC | — | ◇ UNVERIFIED |
| MIMarlen International INC | Riverside | MO | — | ◇ UNVERIFIED |
| MWMarriott Walker Corporation | Birmingham | MI | — | ◇ UNVERIFIED |
| MIMarson International LLC | Elkhart | IN | — | ◇ UNVERIFIED |
| MIMarson International LLC | Elkhart | IN | — | ◇ UNVERIFIED |
| MIMas Iron CO | Los Angeles | CA | — | ◇ UNVERIFIED |
| MIMaxey Industries, Inc. | Shelbyville | KY | — | ◇ UNVERIFIED |
| MGMax G Bradley Jr LLC | Tipton | IN | — | ◇ UNVERIFIED |
| MFMay Foundry & Machine CO | Slc | UT | — | ◇ UNVERIFIED |
| MCMcjunkin CORP | Princeton | WV | — | ◇ UNVERIFIED |
| MMcwane | Tyler | TX | — | ◇ UNVERIFIED |
| MCMcwane Cast Iron Pipe CO. | Birmingham | AL | — | ◇ UNVERIFIED |
| MCMcwane Cast Iron Pipe CO. | Birmingham | AL | — | ◇ UNVERIFIED |
| MIMcwane, INC. | Oakland | CA | — | ◇ UNVERIFIED |
| MPMcwane Poles | Coshocton | OH | — | ◇ UNVERIFIED |
| MHMD Holdings, LLC | Mooresville | IN | — | ◇ UNVERIFIED |
| MWM-d Welding LLC | Minneapolis | MN | — | ◇ UNVERIFIED |
| MMedtronic | Santa Rosa | CA | — | ◇ UNVERIFIED |
| MSMembrane System Specialists, Inc. | Wisconsin Rapids | WI | — | ◇ UNVERIFIED |
| MSMemco Solutions LLC | Oxnard | CA | — | ◇ UNVERIFIED |
| MSMetaldyne Sinterforged Products LLC | North Vernon | IN | — | ◇ UNVERIFIED |
| MPMetalico Pgh INC | Pittsburgh | PA | — | ◇ UNVERIFIED |
| MTMetal Technologies Dba Ravenna Ductile Iron Plant | Ravenna | MI | — | ◇ UNVERIFIED |
| MLMetavation LLC Vassar Plt | Vassar | MI | — | ◇ UNVERIFIED |
| MBMetro Boiler Tube Company, INC. | Gonzales | LA | — | ◇ UNVERIFIED |
| MMMichigan Magna INC | Romulus | MI | — | ◇ UNVERIFIED |
| MWMichigan Wire Die | Warren | MI | — | ◇ UNVERIFIED |
| MMMicro Metals | Richmond | CA | — | ◇ UNVERIFIED |
| MMMicropoise Measurements Systems LLC (1677010265) | Akron | OH | — | ◇ UNVERIFIED |
| MMMidas Metal Works, LLC | Etna | OH | — | ◇ UNVERIFIED |
| MCMiddleby Cooking System | Elgin | IL | — | ◇ UNVERIFIED |
| MMMidland Mechanical, INC. | Billings | MT | — | ◇ UNVERIFIED |
| MPMidsouth Paving, INC. - Montgomery Shop | Montgomery | AL | — | ◇ UNVERIFIED |
| MMMidwest Metallurgical Laboratory INC | Marshall | MI | — | ◇ UNVERIFIED |
| MMMidwest Metallurgical Laboratory Site | Marshall | MI | — | ◇ UNVERIFIED |
| MPMitchell Piping, LLC | Hartville | OH | — | ◇ UNVERIFIED |
 M&l Precision Machining INC | Morgan Hill | CA | — | ◇ UNVERIFIED |
| MMModern Makers Home and Bath Provisions LLC | Grand Rapids | MI | — | ◇ UNVERIFIED |
| MMMohan Machining and Manufacturing | Sacramento | CA | — | ◇ UNVERIFIED |
| MLMohawk Land LLC | Siren | WI | — | ◇ UNVERIFIED |
| MMMoline Machinery LLC | Duluth | MN | — | ◇ UNVERIFIED |
| MMMonarch Marking Systems | Miamisburg | OH | — | ◇ UNVERIFIED |
| MCMonroe Custom Utility Bodies, INC. | Greenfield | IN | — | ◇ UNVERIFIED |
| MMMontague Machine CO | Montague (turners Falls) | MA | — | ◇ UNVERIFIED |
| MSMontana Sulphur and Chemical Company | Billings | MT | — | ◇ UNVERIFIED |
| MRMontgomery Roessing Company | Pittsburgh | PA | — | ◇ UNVERIFIED |
| MMMorrell Manufacturing LLC | Cushing | MN | — | ◇ UNVERIFIED |
| MCMorris Coupling Company, INC. | Knoxville | TN | — | ◇ UNVERIFIED |
| MIMotoman, INC. | Irvine | CA | — | ◇ UNVERIFIED |
| MFMountaineer Fabricators INC | Nitro | WV | — | ◇ UNVERIFIED |
| MCMpg Casting Technologies | Kingsford | MI | — | ◇ UNVERIFIED |
| MEMps Enterprises | Hobbs | NM | — | ◇ UNVERIFIED |
| MFMT Fabrication, Inc. | Benton | IL | — | ◇ UNVERIFIED |
| MCMunicipal Castings INC | Madison | MN | — | ◇ UNVERIFIED |
| MMMyers Mixers, LLC | Cudahy | CA | — | ◇ UNVERIFIED |
| MAMzd Acquisitions INC Dba Moz Designs INC | Oakland | CA | — | ◇ UNVERIFIED |
| NPNapa Pipe CORP | Napa | CA | — | ◇ UNVERIFIED |
| NCNational Chimney Kentucky LLC Dba Magnaflex | Mount Sterling | KY | — | ◇ UNVERIFIED |
| NSNavasota Site | Navasota | TX | — | ◇ UNVERIFIED |
| NFNeenah Foundry CO - Plants 2 and 3 (w2179) | Neenah | WI | — | ◇ UNVERIFIED |
| NGNelson Global - Fortune Circle | Indianapolis | IN | — | ◇ UNVERIFIED |
| NCNew Castings Incorporated | Spokane | WA | — | ◇ UNVERIFIED |
| NCNew Castle Foundry/new Castle | New Castle | PA | — | ◇ UNVERIFIED |
| NCNew Century Industries | Industry | CA | — | ◇ UNVERIFIED |
| NHNew Haven Foundry | New Haven | MI | — | ◇ UNVERIFIED |
| NVNew Vermillion Iron Works, INC. | Hoopeston | IL | — | ◇ UNVERIFIED |
| NRNguyen Rainbow INC | Houston | TX | — | ◇ UNVERIFIED |
| NMNichols Material Handling LLC | Novi | MI | — | ◇ UNVERIFIED |
| NFNippon Fusso America INC | Hayward | CA | — | ◇ UNVERIFIED |
| NBNo BS Brew Company, LLC | Livonia | NY | — | ◇ UNVERIFIED |
| NDNorcal Distro LLC | Chico | CA | — | ◇ UNVERIFIED |
| NINorgren INC | Littleton | CO | — | ◇ UNVERIFIED |
| NGNorma Group | Auburn Hills | MI | — | ◇ UNVERIFIED |
| NANorth American Royalties INC. Wheland Automotive Industries | Chattanooga | TN | — | ◇ UNVERIFIED |
| NHNorthern Horizons INC | Solway | MN | — | ◇ UNVERIFIED |
| NSNorthern Steel Castings INC | Wisconsin Rapids | WI | — | ◇ UNVERIFIED |
| NNov | Dayton | OH | — | ◇ UNVERIFIED |
| NGNov Grant Prideco | Navasota | TX | — | ◇ UNVERIFIED |
| NRNuvo Residential, LLC | Clearfield | UT | — | ◇ UNVERIFIED |
| NANytron Aerospace – Manufacturing Systems | Brea | CA | — | ◇ UNVERIFIED |
 Oceaneering International INC | Panama City | FL | — | ◇ UNVERIFIED |
| OAO-flex Automotive INC | Murfreesboro | TN | — | ◇ UNVERIFIED |
