| LCLiberty Compassion INC Dba Affinity | Clinton | MA | — | ◇ UNVERIFIED |
| LPLiberty Plastics Molding Corporation, INC. | Bellevue | KY | — | ◇ UNVERIFIED |
| LPLifetime Plastics | Morgan Hill | CA | — | ◇ UNVERIFIED |
| LILkr INC Dba Raycon Industries | Brea | CA | — | ◇ UNVERIFIED |
| LFLonestar Fiberglass New Braunfels | New Braunfels | TX | — | ◇ UNVERIFIED |
| LFLonestar Fiberglass Pools | Kingsbury | TX | — | ◇ UNVERIFIED |
| LALos Angeles Pump and Valve Products | Huntington Park | CA | — | ◇ UNVERIFIED |
 Louisiana Pacific CORP | Middlebury | IN | — | ◇ UNVERIFIED |
| LMLouis Meskan Brass Foundry, INC. | Chicago | IL | — | ◇ UNVERIFIED |
| LFLufkin Foundry & Power Transmission Divisions | Lufkin | TX | — | ◇ UNVERIFIED |
| LFLynchburg Foundry Llc, D/b/a Archer Creek Foundry | Lynchburg | VA | — | ◇ UNVERIFIED |
| LPLynwood Pattern | Ontario | CA | — | ◇ UNVERIFIED |
| MFMacaulay Foundry INC | Berkeley | CA | — | ◇ UNVERIFIED |
 Machineworks Manufacturing | Chatsworth | CA | — | ◇ UNVERIFIED |
| MMMack Molding CO | Inman | SC | — | ◇ UNVERIFIED |
| MPMacro Plastics INC | Fairfield | CA | — | ◇ UNVERIFIED |
| MMMagneti Marelli Powertrain USA INC. | Sanford | NC | — | ◇ UNVERIFIED |
| MMMagnus Metal INC | East Peoria | IL | — | ◇ UNVERIFIED |
| MMManchester Metals | North Manchester | IN | — | ◇ UNVERIFIED |
| MAManhole Adjusting Contractors | Monterey Park | CA | — | ◇ UNVERIFIED |
| MCMarble Crafters | Holly Hill | FL | — | ◇ UNVERIFIED |
| MMMarcellus Metalcasters INC | Marcellus | MI | — | ◇ UNVERIFIED |
| MMMarine Muffler Corporation | Apopka | FL | — | ◇ UNVERIFIED |
| MCMarkel Corporation | Plymouth Meeting | PA | — | ◇ UNVERIFIED |
| MFMarlborough Foundry | Marlborough | MA | — | ◇ UNVERIFIED |
| MCMarvin Composites | Fargo | ND | — | ◇ UNVERIFIED |
| MIMas Iron CO | Los Angeles | CA | — | ◇ UNVERIFIED |
| MIMasters in Metal, Inc | Oxnard | CA | — | ◇ UNVERIFIED |
| MCMateenbar Composite Reinforcements, LLC | Concord | NC | — | ◇ UNVERIFIED |
| MFMay Foundry & Machine CO | Slc | UT | — | ◇ UNVERIFIED |
| MPMayon Plastics CO | Hopkins | MN | — | ◇ UNVERIFIED |
| MDMc Dist & Mfg. CO | Addison | IL | — | ◇ 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 |
| MDM D Building Products INC | Woodburn | OR | — | ◇ UNVERIFIED |
| MBMd Building Products, INC. | Gainesville | GA | — | ◇ UNVERIFIED |
| MNMeadville New Products, INC. | Meadville | PA | — | ◇ UNVERIFIED |
| MEMedical Extrusion Technologies Minnesota INC | Elk River | MN | — | ◇ UNVERIFIED |
| MPMercer Prods CO | Umatilla | FL | — | ◇ UNVERIFIED |
| MPMercury Plastics, INC. | City of Industry | CA | — | ◇ UNVERIFIED |
| MPMeridian Pr0ducts of America | Eaton Rapids | MI | — | ◇ 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 |
| MDMichigan Die Casting LLC. | Dowagiac | MI | — | ◇ UNVERIFIED |
| MIMicrolumen INC | Oldsmar | FL | — | ◇ UNVERIFIED |
| MMMicro Metals | Richmond | CA | — | ◇ UNVERIFIED |
| MPMicro Plastics INC | Flippin | AR | — | ◇ UNVERIFIED |
| MMMidwest Metallurgical Laboratory INC | Marshall | MI | — | ◇ UNVERIFIED |
| MMMidwest Metallurgical Laboratory Site | Marshall | MI | — | ◇ UNVERIFIED |
| MIMikron Industries | Kent | WA | — | ◇ UNVERIFIED |
| MIMikron Industries INC | Richmond | KY | — | ◇ UNVERIFIED |
| MWMilgard Windows and Doors | Tualatin | OR | — | ◇ UNVERIFIED |
| MMMiller Manufacturing | Washougal | WA | — | ◇ UNVERIFIED |
| MCMillison Casting Technology, LLC | Sallisaw | OK | — | ◇ UNVERIFIED |
 Miniature Precision Components Janesville | Janesville | WI | — | ◇ UNVERIFIED |
| MMMinnesota Medtec INC | Osseo | MN | — | ◇ UNVERIFIED |
| MPMi Profiles LLC - Millersburg | Millersburg | PA | — | ◇ UNVERIFIED |
| MPMi Profiles Llc/millersburg Plt | Millersburg | PA | — | ◇ UNVERIFIED |
| MPMission Plastics INC | Ontario | CA | — | ◇ UNVERIFIED |
| MKMitsui Kinzoku Die-casting Technology America, INC | Griffin | GA | — | ◇ UNVERIFIED |
 M&l Precision Machining INC | Morgan Hill | CA | — | ◇ UNVERIFIED |
| MMM & M Die Cast | Bridgman | MI | — | ◇ UNVERIFIED |
| MNM & N Plastics | El Paso | TX | — | ◇ UNVERIFIED |
| MPModern Pro Packaging INC | Compton | CA | — | ◇ UNVERIFIED |
| MFMolded Fiber Glass Alabama LLC | Opp | AL | — | ◇ UNVERIFIED |
| MBMolecular Bioproducts INC Dba Thermo Fishier Scientific-petaluma | Petaluma | CA | — | ◇ UNVERIFIED |
| MMMonarch Manufacturing, INC. | Belcamp | MD | — | ◇ UNVERIFIED |
| MAMonotrac Articulation LLC | Midvale | UT | — | ◇ UNVERIFIED |
| MCMonroe Custom Utility Bodies, INC. | Greenfield | IN | — | ◇ UNVERIFIED |
| MMMontague Machine CO | Montague (turners Falls) | MA | — | ◇ UNVERIFIED |
| MHMorgan Hill Plastics | Morgan Hill | CA | — | ◇ UNVERIFIED |
| MCMorton Custom Plastics | Saint Matthews | SC | — | ◇ UNVERIFIED |
| MCMorton Custom Plastics | Saint Matthews | SC | — | ◇ UNVERIFIED |
| MAMoundhouse Aluminum Foundry | Carson City | NV | — | ◇ UNVERIFIED |
| MCMpg Casting Technologies | Kingsford | MI | — | ◇ UNVERIFIED |
| MLMr Longarm INC | Greenwood | MO | — | ◇ UNVERIFIED |
| MMMsi Molding Solutions, INC. | Rome | NY | — | ◇ UNVERIFIED |
| MUMultina USA | Plattsburgh | NY | — | ◇ UNVERIFIED |
| MCMunicipal Castings INC | Madison | MN | — | ◇ UNVERIFIED |
| MCMuskegon Castings Corporation/port City Metal Products | Muskegon | MI | — | ◇ UNVERIFIED |
| MFMvp Food Packaging | Mount Vernon | KY | — | ◇ UNVERIFIED |
| MCMwm Corporation | Phoenix | AZ | — | ◇ UNVERIFIED |
| MFMyers Fiberglass | Visalia | CA | — | ◇ UNVERIFIED |
| MSMyers & Sons Hi-way Safety INC | Napa | CA | — | ◇ UNVERIFIED |
| MAMzd Acquisitions INC Dba Moz Designs INC | Oakland | CA | — | ◇ UNVERIFIED |
| NMNakanishi Manufacturing Corporation | Winterville | GA | — | ◇ UNVERIFIED |
| NCNc Coatings, LLC | Staley | NC | — | ◇ UNVERIFIED |
| NFNeenah Foundry CO - Plants 2 and 3 (w2179) | Neenah | WI | — | ◇ UNVERIFIED |
| NCNelipak Corporation | Cranston | RI | — | ◇ UNVERIFIED |
 New Bedford Technology LLC | Winchester | VA | — | ◇ UNVERIFIED |
| NCNew Castings Incorporated | Spokane | WA | — | ◇ UNVERIFIED |
| NCNew Castle Foundry/new Castle | New Castle | PA | — | ◇ UNVERIFIED |
| NHNew Haven Foundry | New Haven | MI | — | ◇ UNVERIFIED |
| NSNew Surface-odessa | Odessa | MO | — | ◇ UNVERIFIED |
| NVNew Vermillion Iron Works, INC. | Hoopeston | IL | — | ◇ UNVERIFIED |
| NKNifco Ktw | Toccoa | GA | — | ◇ UNVERIFIED |
