| KHKph Holdings | Eaton Rapids | MI | Transportation Equipment Manufacturing336322 | — | ◇ UNVERIFIED |
| KPKropro Plating | Norton Shores | MI | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| KEKuhlman Electric Corporation | Bay City | MI | Electrical Equipment, Appliance & Component Manufacturing335311 | — | ◇ UNVERIFIED |
| KSKuka Systems North America LLC | Warren | MI | Machinery Manufacturing333249 | — | ◇ UNVERIFIED |
| KEKyrie Enterprises LLC | Royal Oak | MI | Fabricated Metal Product Manufacturing332710 | 1-19 | ◇ UNVERIFIED |
| LCL-3 Communications Avionics System INC | Grand Rapids | MI | Computer and Electronic Product Manufacturing334511 | — | ◇ UNVERIFIED |
| LILacks Industries INC | Saranac | MI | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| LILacks Industries, INC. | Grand Rapids | MI | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| LPLacks Plastic Plate Kraft | Kentwood | MI | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| LELafata Enterprises INC | Shelby Township | MI | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| LMLakeland Monroe Group - Plant 1 | Kentwood | MI | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| LZLa Z Boy Chair CO | Monroe | MI | Furniture and Related Product Manufacturing337121 | — | ◇ UNVERIFIED |
| LTLdm Technologies | Romulus | MI | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| LCLear CORP Detroit | Detroit | MI | Plastics and Rubber Products Manufacturing326150 | — | ◇ UNVERIFIED |
| LCLear Corporation | Traverse City | MI | Fabricated Metal Product Manufacturing332116 | — | ◇ UNVERIFIED |
| LCLear Corporation | Traverse City | MI | Transportation Equipment Manufacturing336000 | — | ◇ UNVERIFIED |
| LCLear Corporation | Grand Rapids | MI | Fabricated Metal Product Manufacturing332116 | — | ◇ UNVERIFIED |
| LCLear Corporation - Grand Rapids | Grand Rapids | MI | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| LCLeco CORP | Benton Harbor | MI | Nonmetallic Mineral Product Manufacturing327110 | — | ◇ UNVERIFIED |
| LFLefere Forge & Machine CO | Jackson | MI | Fabricated Metal Product Manufacturing332111 | — | ◇ UNVERIFIED |
| LHLeiner Health Products | Kalamazoo | MI | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| LILeon Interiors INC | Grand Rapids | MI | Plastics and Rubber Products Manufacturing326150 | — | ◇ UNVERIFIED |
| LMLeo's Metal & Wood Products | Clayton | MI | Wood Product Manufacturing321920 | 1-19 | ◇ UNVERIFIED |
| LDLiberty Dairy CO | Evart | MI | Food Manufacturing311511 | — | ◇ UNVERIFIED |
| LPLibralter Plastics INC | Walled Lake | MI | Transportation Equipment Manufacturing336399 | — | ◇ UNVERIFIED |
| LPLibralter Plastics INC | Westland | MI | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| LALiebherr Aerospace Saline INC | Saline | MI | Machinery Manufacturing333517 | — | ◇ UNVERIFIED |
| LGLinde Gas LLC | Canton | MI | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
 Lippert Components Manufacturing, INC. | White Pigeon | MI | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| LKL K Q Corporation | Grand Rapids | MI | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| LJLl Johnson Lumber Mfg CO | Charlotte | MI | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| LLL & L Products Inc-deep South | Romeo | MI | Miscellaneous Manufacturing339991 | — | ◇ UNVERIFIED |
| LALondon Aggregates | Milan | MI | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| LPLongworth Plating Sve CO | Chelsea | MI | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| LELotus Engineering INC | Ann Arbor | MI | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| LRLtc Roll & Eng-clinton Twp | Clinton Township | MI | Fabricated Metal Product Manufacturing332114 | — | ◇ UNVERIFIED |
| LRLtc Roll & Engineering | Fraser | MI | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| LCLudington Components | Ludington | MI | Furniture and Related Product Manufacturing337211 | — | ◇ UNVERIFIED |
| LHLumberjack Hardwoods INC | Menominee | MI | Wood Product Manufacturing321918 | 20-99 | ◇ UNVERIFIED |
| LFLumbermen's Finishing Division | Wyoming | MI | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| LILumbermens INC | Byron Center | MI | Wood Product Manufacturing321912 | — | ◇ UNVERIFIED |
| LWL & W Engineering CO Plant 3 | Holland | MI | Transportation Equipment Manufacturing336370 | — | ◇ UNVERIFIED |
| MIMacdonald's Industrial Products - Plant #3 | Grand Rapids | MI | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| MRMaclean Royal Oak LLC | Troy | MI | Fabricated Metal Product Manufacturing332722 | — | ◇ UNVERIFIED |
| MPMacomb Printing INC | Clinton Twp | MI | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| MVMac Valves INC | Wixom | MI | Fabricated Metal Product Manufacturing332911 | — | ◇ UNVERIFIED |
| MIMag Ias LLC | Sterling Heights | MI | Machinery Manufacturing333517 | — | ◇ UNVERIFIED |
| MFMagic Finishing CO. | Grand Rapids | MI | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| MIMagiglide Inc-crystal Falls | Crystal Falls | MI | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
| MCMagna Closures Lighting Division | Plymouth | MI | Transportation Equipment Manufacturing336320 | — | ◇ UNVERIFIED |
