| ANAmerican Nickel Works | Chicago | IL | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| BBB & B Pullman Properties | Chicago | IL | Food Manufacturing311999 | — | ◐ LIKELY ACTIVE |
| CTCalumet Tank & Equipment CO | Chicago | IL | Fabricated Metal Product Manufacturing332420 | — | ◐ LIKELY ACTIVE |
| CMChicago Mattress Company | Chicago | IL | Furniture and Related Product Manufacturing337910 | — | ◐ LIKELY ACTIVE |
| CCoresite | Chicago | IL | Miscellaneous Manufacturing339999 | — | ◐ LIKELY ACTIVE |
| CSCrcc Sifang America INC | Chicago | IL | Miscellaneous Manufacturing339999 | 20-99 | ◐ LIKELY ACTIVE |
| DPDavies Plating INC | Chicago | IL | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| EMEdsal Manufacturing CO INC | Chicago | IL | Fabricated Metal Product Manufacturing332119 | — | ◐ LIKELY ACTIVE |
| EIEl-milagro, INC. | Chicago | IL | Food Manufacturing311830 | 500+ | ◐ LIKELY ACTIVE |
| EGEngineered Glass Products L.l.c. | Chicago | IL | Printing and Related Support Activities323113 | — | ◐ LIKELY ACTIVE |
| FAFabricating and Welding CORP | Chicago | IL | Fabricated Metal Product Manufacturing332312 | 1-19 | ◐ LIKELY ACTIVE |
| FSFreedman Seating Company | Chicago | IL | Transportation Equipment Manufacturing336360 | 500+ | ◐ LIKELY ACTIVE |
| GCGeneral Core Supply INC | Chicago | IL | Fabricated Metal Product Manufacturing332439 | — | ◐ LIKELY ACTIVE |
| HCHome City Ice | Chicago | IL | Miscellaneous Manufacturing339999 | — | ◐ LIKELY ACTIVE |
| MEMechanical Eng Products CO | Chicago | IL | Miscellaneous Manufacturing339999 | 1-19 | ◐ LIKELY ACTIVE |
| MSMeyer Steel Drum INC | Chicago | IL | Fabricated Metal Product Manufacturing332439 | — | ◐ LIKELY ACTIVE |
| MGMidwest Gold Stampers, Inc. | Chicago | IL | Printing and Related Support Activities323120 | 1-19 | ◐ LIKELY ACTIVE |
| MIMifab INC | Chicago | IL | Fabricated Metal Product Manufacturing332812 | 20-99 | ◐ LIKELY ACTIVE |
| OCOccidental Chemical CORP | Chicago | IL | Chemical Manufacturing325130 | — | ◐ LIKELY ACTIVE |
| OSOosterbaan Scaffolding Company | Chicago | IL | Furniture and Related Product Manufacturing337127 | 1-19 | ◐ LIKELY ACTIVE |
| PEPhoenix Electric Manufacturing Company | Chicago | IL | Plastics and Rubber Products Manufacturing326199 | — | ◐ LIKELY ACTIVE |
| PFPhoenix Fabricators, LLC | Chicago | IL | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| PPPuckered Pickle CO. | Chicago | IL | Food Manufacturing311421 | 20-99 | ◐ LIKELY ACTIVE |
| PIPullman Innovations (formerly Agri-fine Corporation) | Chicago | IL | Food Manufacturing311119 | — | ◐ LIKELY ACTIVE |
| SIShaved Ice Distributors, Inc. | Chicago | IL | Food Manufacturing311999 | 1-19 | ◐ LIKELY ACTIVE |
| SPSkild Plating INC | Chicago | IL | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| SSSweetheart Solo Cup CO | Chicago | IL | Paper Manufacturing322215 | — | ◐ LIKELY ACTIVE |
| TLTienergy, LLC | Chicago | IL | Wood Product Manufacturing321999 | — | ◐ LIKELY ACTIVE |
| AFAbbey Finishing CORP | Chicago | IL | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| APAce Plating CO | Chicago | IL | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| ADAction Disposal | Chicago | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ARAction Rack & Mfg CO | Chicago | IL | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| ACAdjustable Clamp CO | Chicago | IL | Fabricated Metal Product Manufacturing332510 | — | ◇ UNVERIFIED |
| AMAdm Milling CO | Chicago | IL | Food Manufacturing311211 | — | ◇ UNVERIFIED |
| APAero Plating Works | Chicago | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| AFA Finkl & Sons CO | Chicago | IL | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| AUAirgas USA LLC | Chicago | IL | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| APAkers Packaging Service INC | Chicago | IL | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| ARA-korn Roller INC | Chicago | IL | Machinery Manufacturing333998 | — | ◇ UNVERIFIED |
| ABAl-amir Bakery INC D/b/a Sanabel Bakery | Chicago | IL | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| AHAllied Hastings Barrel Drum Service | Chicago | IL | Fabricated Metal Product Manufacturing332439 | — | ◇ UNVERIFIED |
| AKAltman & Koehler Foundry CO INC | Chicago | IL | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| ARAltman Ron | Chicago | IL | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| AAlumetco | Chicago | IL | Primary Metal Manufacturing331420 | — | ◇ UNVERIFIED |
| APAmber Plating Works INC | Chicago | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| AAAmcor American Metal Chem CORP | Chicago | IL | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| ADAmerican Decal & Mfg CO | Chicago | IL | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| AMAmerican Midwest Chrome Plating & Polishing | Chicago | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| APAmerican Precision Castings INC | Chicago | IL | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| ARAmerican Rack CO | Chicago | IL | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |