| LPLights' Prosthetic Eyes, INC. | Peoria | IL | Plastics and Rubber Products Manufacturing326199 | — | ● ACTIVE |
| LOLmt Onsrud | Waukegan | IL | Fabricated Metal Product Manufacturing332216 | 100-499 | ● ACTIVE |
Lovejoy, LLC | Downers Grove | IL | Machinery Manufacturing333613 | — | ● ACTIVE |
Lund Industries, INC | Northbrook | IL | Computer and Electronic Product Manufacturing334290 | — | ● ACTIVE |
Luttrell Engraving INC | Alsip | IL | Printing and Related Support Activities323115 | — | ● ACTIVE |
Lux Blox LLC | Galesburg | IL | Miscellaneous Manufacturing339930 | — | ● ACTIVE |
M-1 Tool Works, INC. | Mchenry | IL | Fabricated Metal Product Manufacturing332710 | 20-99 | ● ACTIVE |
| MMMaclean Mallard LLC | Sterling | IL | Machinery Manufacturing333922 | 100-499 | ● ACTIVE |
Magid Glove and Safety Manufacturing Company, L.l.c. | Romeoville | IL | Apparel Manufacturing315990 | 500+ | ● ACTIVE |
Magnuson Group INC | Woodridge | IL | Furniture and Related Product Manufacturing337214 | 20-99 | ● ACTIVE |
Manor Tool & Manufacturing CO | Schiller Park | IL | Fabricated Metal Product Manufacturing332116 | — | ● ACTIVE |
Mantec Services INC | Saint Charles | IL | Miscellaneous Manufacturing339999 | — | ● ACTIVE |
Marlboro Wire, Limited | Quincy | IL | Fabricated Metal Product Manufacturing332618 | 20-99 | ● ACTIVE |
| MAMat Asphalt LLC | Chicago | IL | Petroleum and Coal Products Manufacturing324121 | 1-19 | ● ACTIVE |
Matrix Plastic Products INC | Wood Dale | IL | Plastics and Rubber Products Manufacturing326199 | 100-499 | ● ACTIVE |
Mccann Concrete Products INC | Dorsey | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ● ACTIVE |
Meaden Precision Machined Products Company | Burr Ridge | IL | Fabricated Metal Product Manufacturing332721 | 20-99 | ● ACTIVE |
Mecc Alte INC. | Mchenry | IL | Electrical Equipment, Appliance & Component Manufacturing335312 | 20-99 | ● ACTIVE |
| MDMechanical Devices CO | Bloomington | IL | Fabricated Metal Product Manufacturing332710 | 100-499 | ● ACTIVE |
Medgyn Products INC | Westmont | IL | Miscellaneous Manufacturing339112 | — | ● ACTIVE |
| MCMega Circuit INC | Addison | IL | Computer and Electronic Product Manufacturing334412 | 20-99 | ● ACTIVE |
Mercury Products CORP | Schaumburg | IL | Fabricated Metal Product Manufacturing332116 | — | ● ACTIVE |
Metal Impact LLC | Elk Grove Village | IL | Fabricated Metal Product Manufacturing332999 | — | ● ACTIVE |
Metal Improvement Company, LLC | Addison | IL | Fabricated Metal Product Manufacturing332811 | — | ● ACTIVE |
| MTMetals Technology CORP | Carol Stream | IL | Fabricated Metal Product Manufacturing332811 | 20-99 | ● ACTIVE |
| MIMetamora Industries, LLC | Metamora | IL | Wood Product Manufacturing321920 | 20-99 | ● ACTIVE |
Methode Electronics INC | Rolling Meadows | IL | Fabricated Metal Product Manufacturing332813 | — | ● ACTIVE |
| MRMeyercord Revenue INC | Carol Stream | IL | Printing and Related Support Activities323111 | 20-99 | ● ACTIVE |
Microlink Devices INC | Niles | IL | Computer and Electronic Product Manufacturing334413 | — | ● ACTIVE |
Microtech Machine CO INC | Wheeling | IL | Fabricated Metal Product Manufacturing332710 | — | ● ACTIVE |
Mid-america Safety CORP | Elk Grove Village | IL | Miscellaneous Manufacturing339113 | — | ● ACTIVE |
Mid-america Taping & Reeling INC | Glendale Heights | IL | Miscellaneous Manufacturing339114 | — | ● ACTIVE |
| MTMid-state Tank CO INC | Sullivan | IL | Fabricated Metal Product Manufacturing332420 | — | ● ACTIVE |
Milano Bakery INC | Joliet | IL | Food Manufacturing311812 | — | ● ACTIVE |
Minic Industries INC | Crystal Lake | IL | Fabricated Metal Product Manufacturing332721 | — | ● ACTIVE |
Minxray INC | Northbrook | IL | Computer and Electronic Product Manufacturing334517 | — | ● ACTIVE |
| MPMiracapo Pizza CO LLC | Gurnee | IL | Food Manufacturing311412 | 100-499 | ● ACTIVE |
| MPMiracapo Pizza CO LLC | Elk Grove Village | IL | Food Manufacturing311412 | 100-499 | ● ACTIVE |
Mobile Mark INC | Itasca | IL | Computer and Electronic Product Manufacturing334220 | 100-499 | ● ACTIVE |
Modern Advanced Manufacturing LLC | Rockford | IL | Fabricated Metal Product Manufacturing332710 | 20-99 | ● ACTIVE |
Modular Sound Systems, INC. | Algonquin | IL | Computer and Electronic Product Manufacturing334310 | — | ● ACTIVE |
Moldtronics INC | Downers Grove | IL | Plastics and Rubber Products Manufacturing326199 | — | ● ACTIVE |
| MFMoline Forge INC | Moline | IL | Fabricated Metal Product Manufacturing332111 | 20-99 | ● ACTIVE |
| MSMoonlight Slumber, LLC | Elgin | IL | Furniture and Related Product Manufacturing337910 | — | ● ACTIVE |
Morgan Bronze Products, INC. | Lake Zurich | IL | Fabricated Metal Product Manufacturing332710 | — | ● ACTIVE |
Moss Holding Company | Franklin Park | IL | Textile Product Mills314994 | — | ● ACTIVE |
Motor Coach Industries, INC | Des Plaines | IL | Transportation Equipment Manufacturing336120 | — | ● ACTIVE |
Motorola Solutions INC | Elgin | IL | Computer and Electronic Product Manufacturing334220 | — | ● ACTIVE |
M & R Precision Machining INC | Elk Grove Village | IL | Fabricated Metal Product Manufacturing332710 | — | ● ACTIVE |
Multax LLC | Morton | IL | Fabricated Metal Product Manufacturing332710 | — | ● ACTIVE |