| LJLock Joint Tube - Tennessee | Chattanooga | TN | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| LTLohs Tool Company INC | Lebanon | TN | Machinery Manufacturing333514 | — | ◇ UNVERIFIED |
 Lsc Communications | Gallatin | TN | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| MMMadison Mill, INC. (closed) | Nashville | TN | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| MSMagnetic Separation Systems, INC. | Nashville | TN | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MPMarco Printing Company | Lewisburg | TN | Printing and Related Support Activities323119 | — | ◇ UNVERIFIED |
| MAMarine Accessories Corporation (mac) | Maryville | TN | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| MCMarine Components - Engine Shop | Loudon | TN | Transportation Equipment Manufacturing336612 | — | ◇ UNVERIFIED |
| MGMarine Group LLC | Murfreesboro | TN | Transportation Equipment Manufacturing336612 | — | ◇ UNVERIFIED |
| MIMark I Molded Plastics of Tennessee | Henry | TN | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| MIMarlock INC | Maynardville | TN | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| MOMarque of Brands Americas LLC | Alexandria | TN | Chemical Manufacturing325620 | — | ◇ UNVERIFIED |
| MWMars Wrigley Confectionery | Chattanooga | TN | Food Manufacturing311340 | — | ◇ UNVERIFIED |
| MCMar-tech CO. | Mount Juliet | TN | Machinery Manufacturing333517 | — | ◇ UNVERIFIED |
| MMMartin Marietta Materials, INC Dba I-75 Quarry (east) | Heiskell | TN | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| MAMartinrea Automotive Structures (u.s.a.) INC. | Springfield | TN | Machinery Manufacturing333512 | — | ◇ UNVERIFIED |
| MAMartinrea Automotive Systems (usa) LLC | Columbia | TN | Transportation Equipment Manufacturing336111 | — | ◇ UNVERIFIED |
| MTMaster Tool & Engineering CORP | Sweetwater | TN | Machinery Manufacturing333319 | — | ◇ UNVERIFIED |
| MTMatheson Tri-gas, INC. | Chattanooga | TN | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| MEMatsushita Electronic Components Corporation of America | Knoxville | TN | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| MUMayekawa U.s.a., INC. | Lebanon | TN | Machinery Manufacturing333319 | — | ◇ UNVERIFIED |
| MMMaymead Materials, INC. | Mountain City | TN | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| MPMaytag P#1 Cleveland Cooking Prods. | Cleveland | TN | Electrical Equipment, Appliance & Component Manufacturing335220 | — | ◇ UNVERIFIED |
| MPMaytag P #3 Cleveland Cooking Prods | Cleveland | TN | Electrical Equipment, Appliance & Component Manufacturing335220 | — | ◇ UNVERIFIED |
| MVMckenzie Valve & Machining CO | Mc Kenzie | TN | Fabricated Metal Product Manufacturing332911 | — | ◇ UNVERIFIED |
| MMMc Murtry Herman D | Hendersonville | TN | Machinery Manufacturing333319 | — | ◇ UNVERIFIED |
| MPMcquiddy Printing Company | Nashville | TN | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| MHMedlin Hosiery Mills* | Morristown | TN | Apparel Manufacturing315119 | — | ◇ UNVERIFIED |
| MAMemphis Auto Parts & Salvage & Auto Sales, INC. | Memphis | TN | Transportation Equipment Manufacturing336399 | — | ◇ UNVERIFIED |
| MFMemphis Folding Stairs INC | Memphis | TN | Wood Product Manufacturing321918 | — | ◇ UNVERIFIED |
| MHMemphis Hardwood Flooring | Memphis | TN | Wood Product Manufacturing321918 | — | ◇ UNVERIFIED |
| MRMemphis Ready Mix Malone Road Plant Dba Buzzi Unicem Ready Mix, LLC | Memphis | TN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MPMercury Printing, an Rr Donnelley Company | Memphis | TN | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| MBMetal Building Products, Inc., Dba Spirco Manufacturing | Memphis | TN | Fabricated Metal Product Manufacturing332311 | — | ◇ UNVERIFIED |
| MEMetals Engineering Corporation | Greeneville | TN | Furniture and Related Product Manufacturing337127 | — | ◇ UNVERIFIED |
| MIMetaltek International Southern Centrifugal Div | Chattanooga | TN | Primary Metal Manufacturing331525 | — | ◇ UNVERIFIED |
| MCMetokote Corporation - Plant 8 | Memphis | TN | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| MMMetro Materials, INC. - Malone Road | Memphis | TN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MRMetro Ready Mix Concrete, INC. | Nashville | TN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MBMid-south Bolt & Screw CO INC | Nashville | TN | Fabricated Metal Product Manufacturing332722 | — | ◇ UNVERIFIED |
| MSMid State Materials Company* | Cookeville | TN | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| MMMid-way Materials, INC. | Mckenzie | TN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MCMilliken Columbia Plant | Columbia | TN | Textile Mills313230 | — | ◇ UNVERIFIED |
| MHMillington Hot Mix Facility | Millington | TN | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| MLMilton Lumber Company, INC. | Dover | TN | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| MIMitchell Industrial Tire | Chattanooga | TN | Plastics and Rubber Products Manufacturing326211 | — | ◇ UNVERIFIED |
| MLM Lee Smith Publishers LLC | Brentwood | TN | Printing and Related Support Activities323114 | — | ◇ UNVERIFIED |
 Mmc Materials INC | Memphis | TN | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| MMMmc Materials, INC. - Collierville | Collierville | TN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| MMMmc Materials, Inc.-plant 218 Piperton | Piperton | TN | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
