| JPJensen Plating Works INC | Chicago | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| JMJlo Metal Products INC | Chicago | IL | Fabricated Metal Product Manufacturing332116 | — | ◇ UNVERIFIED |
| JFJoe & Frank's Homemade Sausages CO | Chicago | IL | Food Manufacturing311612 | — | ◇ UNVERIFIED |
| JEJonas Enterprises INC | Chicago | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| JMJoslyn Manufacturing CO | Chicago | IL | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| JMJoslyn Mfg - Electrical Apparatus Div | Chicago | IL | Electrical Equipment, Appliance & Component Manufacturing335931 | — | ◇ UNVERIFIED |
| JCJp Custom Metal Finishing | Chicago | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| JMJp Morgan Chase | Chicago | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| KCK-5 Construction CORP | Chicago | IL | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| KGKap Graphics INC | Chicago | IL | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| KPKappa Products CORP | Chicago | IL | Food Manufacturing311223 | — | ◇ UNVERIFIED |
| KLKeywell LLC | Chicago | IL | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| KCK-five Construction CO | Chicago | IL | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| KPKnight Packing Group INC | Chicago | IL | Paper Manufacturing322212 | — | ◇ UNVERIFIED |
| KMKoch Material CO | Chicago | IL | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| KCKorex Chicago LLC | Chicago | IL | Chemical Manufacturing325000 | — | ◇ UNVERIFIED |
| KLKrel Laboratories INC | Chicago | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| LCLa-capannina-coffee/alacavannia Coffee | Chicago | IL | Food Manufacturing311920 | — | ◇ UNVERIFIED |
| LCLa Casa Del Pueblo | Chicago | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| LPLake Point Foods INC | Chicago | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| LLLakeside Lithography LLC | Chicago | IL | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| LELakewood Engineering & Mfg CO | Chicago | IL | Machinery Manufacturing333412 | — | ◇ UNVERIFIED |
| LGLakin General CORP | Chicago | IL | Plastics and Rubber Products Manufacturing326299 | — | ◇ UNVERIFIED |
| LGLakin General CORP - Roller Division | Chicago | IL | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| LSLamination Specialties | Chicago | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| LPLashore Press INC | Chicago | IL | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| LILifoam Industries LLC | Chicago | IL | Plastics and Rubber Products Manufacturing326140 | — | ◇ UNVERIFIED |
| LPLuster Prod INC | Chicago | IL | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| MOMarine Oil Terminal | Chicago | IL | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| MGMarvel Group INC | Chicago | IL | Furniture and Related Product Manufacturing337214 | — | ◇ UNVERIFIED |
| MMMatchless Metal Polish CO | Chicago | IL | Chemical Manufacturing325612 | — | ◇ UNVERIFIED |
| MLMelar Litho INC | Chicago | IL | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| MIMenard INC | Chicago | IL | Chemical Manufacturing325611 | — | ◇ UNVERIFIED |
| MFMetal Finishing Research CORP | Chicago | IL | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| MTMetromedia Technologies INC | Chicago | IL | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| MBMetz Baking CO | Chicago | IL | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| MAMidway Airport Amc Buildings | Chicago | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MFMidwest Folding Products | Chicago | IL | Furniture and Related Product Manufacturing337127 | — | ◇ UNVERIFIED |
| MPMills Pallet, INC. | Chicago | IL | Wood Product Manufacturing321920 | 1-19 | ◇ UNVERIFIED |
| MIMilton Industires INC | Chicago | IL | Plastics and Rubber Products Manufacturing326299 | — | ◇ UNVERIFIED |
| MLMixonsite LLC | Chicago | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| MDModern Die Casting CORP | Chicago | IL | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| MAMorse Automotive CORP | Chicago | IL | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |
| MAMorse Automotive CORP | Chicago | IL | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |
| MPMrc Polymers INC | Chicago | IL | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| MPMrc Polymers INC | Chicago | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| NCNalco Chemical CO | Chicago | IL | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| NCNational Casein CO | Chicago | IL | Chemical Manufacturing325520 | — | ◇ UNVERIFIED |
| NINational Interchem CORP | Chicago | IL | Chemical Manufacturing325612 | — | ◇ UNVERIFIED |
| NFNatures Fynd | Chicago | IL | Food Manufacturing311999 | — | ◇ UNVERIFIED |
