| IMInnovative Machine Corporation | Birmingham | — | ◇ UNVERIFIED |
| ICIron City Iron Works Inc | Trussville | — | ◇ UNVERIFIED |
| ICIron City Iron Works Inc | Tarrant | — | ◇ UNVERIFIED |
| ICIron City Rifle Work | Pelham | — | ◇ UNVERIFIED |
| IDIron Design By Jeremy, LLC | Birmingham | — | ◇ UNVERIFIED |
| JMJackson Metalworks, INC. | Jackson | — | ◇ UNVERIFIED |
| JLJcim, LLC | Mccalla | — | ◇ UNVERIFIED |
| JUJcim Us, LLC | Mccalla | — | ◇ UNVERIFIED |
| JIJ.e.e.s.s., INC. | Grand Bay | — | ◇ UNVERIFIED |
| JWJeld Wen | Ozark | — | ◇ UNVERIFIED |
| JPJerry's Piping & Fabrication, INC. | Daphne | — | ◇ UNVERIFIED |
| JCJohnson Controls, INC. Jcim (mccalla) | Mccalla | — | ◇ UNVERIFIED |
| JMJohnson's Machine and Tool, INC. | Boaz | — | ◇ UNVERIFIED |
| JGJoy Global Conveyors INC. | Winfield | — | ◇ UNVERIFIED |
| JMJti Manufacturing, INC. | Birmingham | — | ◇ UNVERIFIED |
| KSK.c. Sol-tech, INC. | Auburn | — | ◇ UNVERIFIED |
| KFKennametal Firth Sterling Huntsville | Huntsville | — | ◇ UNVERIFIED |
| KGKennedy Galvanizing | Morris | — | ◇ UNVERIFIED |
| KGKennedy Galvanizing INC | Hanceville | — | ◇ UNVERIFIED |
| KRKevin Reilly, INC. | Montgomery | — | ◇ UNVERIFIED |
| KBKnight Bullets | Fort Deposit | — | ◇ UNVERIFIED |
| KLKoam, LLC | Opelika | — | ◇ UNVERIFIED |
| KAKross Ammunition, LLC | Madison | — | ◇ UNVERIFIED |
 Laser Cutting Service INC | Birmingham | — | ◇ UNVERIFIED |
| LFLaser Fabrication & Machine Co., INC. | Wellington | — | ◇ UNVERIFIED |
| LMLaser Made Creations | Valley Grande | — | ◇ UNVERIFIED |
| LILee Industrial Services INC. (crossville) | Crossville | — | ◇ UNVERIFIED |
| LALennox Aes Holdings LLC | Tallassee | — | ◇ UNVERIFIED |
| LCLiberty Coating Alabama LLC | Bessemer | — | ◇ UNVERIFIED |
| LCLiberty Container Solutions, Inc. | Theodore | — | ◇ UNVERIFIED |
 Lippert Components Manufacturing, INC. | Double Springs | — | ◇ UNVERIFIED |
| LLL L Hodge Machine Works, INC | Montgomery | — | ◇ UNVERIFIED |
| LLL & L Machine and Tool, L.l.c. | Opelika | — | ◇ UNVERIFIED |
 Logan Machine Works, INC. | Phenix City | — | ◇ UNVERIFIED |
| MAMachine and Hydraulics, INC. | Gardendale | — | ◇ UNVERIFIED |
| MCMachining & Coating Specialists, INC. | Leeds | — | ◇ UNVERIFIED |
| MIMagblock, INC. | Enterprise | — | ◇ UNVERIFIED |
| MIMallin Industries, LLC | Fairfield | — | ◇ UNVERIFIED |
| MDMan Diesel & Turbo North America, INC. | Prattville | — | ◇ UNVERIFIED |
| MAMansell and Associates, LLC | Tuscumbia | — | ◇ UNVERIFIED |
| MUMaricorp US | Demopolis | — | ◇ UNVERIFIED |
| MWMarks Welding & Fabricating | Thorsby | — | ◇ UNVERIFIED |
| MCMason Corporation | Jemison | — | ◇ UNVERIFIED |
| MCMason Corporation | Birmingham | — | ◇ UNVERIFIED |
| MTMclendon Trailers, LLC | Phenix City | — | ◇ UNVERIFIED |
| MTMclendon Trailers, LLC | Phenix City | — | ◇ UNVERIFIED |
| MBMetal Benders, INC. | Hope Hull | — | ◇ UNVERIFIED |
| MBMetal Building Services, LLC | Semmes | — | ◇ UNVERIFIED |
| MUMetalspray Usa, INC | Newton | — | ◇ UNVERIFIED |
 Mgt Manufacturing LLC | Springville | — | ◇ UNVERIFIED |
