Illinois Tool Works INC | Des Plaines, IL | Computer and Electronic Product Manufacturing334419 | — | ● ACTIVE |
Immi Vehicle Improvement Products, INC. | Antioch, IL | Transportation Equipment Manufacturing336330 | — | ● ACTIVE |
Imprex International, INC | Arlington Heights, IL | Fabricated Metal Product Manufacturing332216 | — | ● ACTIVE |
Indium Corporation of America, the | Elk Grove Village, IL | Primary Metal Manufacturing331491 | — | ● ACTIVE |
Industrial Enclosure CORP | Aurora, IL | Fabricated Metal Product Manufacturing332439 | — | ● ACTIVE |
Industrial Kinetics INC | Downers Grove, IL | Machinery Manufacturing333922 | 20–99 | ● ACTIVE |
Industrial Motion Control, LLC | Wheeling, IL | Fabricated Metal Product Manufacturing332999 | — | ● ACTIVE |
In-step Mobility Products INC | Skokie, IL | Miscellaneous Manufacturing339113 | — | ● ACTIVE |
International Paint LLC | Waukegan, IL | Chemical Manufacturing325510 | — | ● ACTIVE |
| IBIroquois Bio Energy Company LLC | Rensselaer, IN | Chemical Manufacturing325193 | 20–99 | ● ACTIVE |
Isovac Products LLC | Romeoville, IL | Miscellaneous Manufacturing339113 | — | ● ACTIVE |
Italia Foods INC. | Schaumburg, IL | Food Manufacturing311412 | — | ● ACTIVE |
Jeron Electronic Systems, INC. | Niles, IL | Computer and Electronic Product Manufacturing334290 | — | ● ACTIVE |
| JBJohn B. Sanfilippo & Son, INC. | Elgin, IL | Food Manufacturing311911 | 500+ | ● ACTIVE |
| JCJohn Crane, INC | Morton Grove, IL | Fabricated Metal Product Manufacturing332710 | — | ● ACTIVE |
Julian Electrical Service & Engineering INC | Homer Glen, IL | Transportation Equipment Manufacturing336320 | — | ● ACTIVE |
| JRJune R R Nichols Ocularist LTD | Des Plaines, IL | Miscellaneous Manufacturing339115 | — | ● ACTIVE |
Kiene Diesel Accessories, INC. | Addison, IL | Fabricated Metal Product Manufacturing332911 | 20–99 | ● ACTIVE |
| KPKksp Precision Machining LLC | Glendale Heights, IL | Fabricated Metal Product Manufacturing332710 | 20–99 | ● ACTIVE |
Kocour CO | Chicago, IL | Chemical Manufacturing325612 | — | ● ACTIVE |
Koi Computers, INC. | Downers Grove, IL | Computer and Electronic Product Manufacturing334111 | — | ● ACTIVE |
Kold-ban International LTD | Lake in the Hills, IL | Machinery Manufacturing333618 | 20–99 | ● ACTIVE |
Konrady Plastics, INC. | Portage, IN | Plastics and Rubber Products Manufacturing326199 | 20–99 | ● ACTIVE |
Lake County Press INC | Waukegan, IL | Printing and Related Support Activities323111 | — | ● ACTIVE |
| LOLand O' Frost Lansing | Lansing, IL | Food Manufacturing311611 | 100–499 | ● ACTIVE |
Lantz Medical, INC. | Merrillville, IN | Miscellaneous Manufacturing339112 | — | ● ACTIVE |
Larand LLC | Naperville, IL | Miscellaneous Manufacturing339113 | — | ● ACTIVE |
Liftseat CORP | Oak Brook, IL | Fabricated Metal Product Manufacturing332913 | — | ● 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 |
M-1 Tool Works, INC. | Mchenry, IL | Fabricated Metal Product Manufacturing332710 | 20–99 | ● 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 |
| 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 |
Maya Coffee Company LLC | Whiting, IN | Food Manufacturing311920 | — | ● 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 |
Medgyn Products INC | Westmont, IL | Miscellaneous Manufacturing339112 | — | ● ACTIVE |
Medtec Applications INC | Glendale Heights, IL | Miscellaneous Manufacturing339112 | — | ● 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 |
| MRMeyercord Revenue INC | Carol Stream, IL | Printing and Related Support Activities323111 | 20–99 | ● ACTIVE |
Mid-america Safety CORP | Elk Grove Village, IL | Miscellaneous Manufacturing339113 | — | ● ACTIVE |