| 6L601-605 Lunt Ave LLC | Schaumburg | — | ◇ UNVERIFIED |
| 9T945 Tonne Rd, LLC | Elk Grove Village | — | ◇ UNVERIFIED |
| AAAbc Acquisition Company, LLC Dba Aetna Bearing Company | Franklin Park | — | ◇ UNVERIFIED |
| AIAccu-fab, Incorporated | Wheeling | — | ◇ UNVERIFIED |
| AGAccurate Grinding | Posen | — | ◇ UNVERIFIED |
| ATAccurate Tool Mfg. CORP. | Cicero | — | ◇ UNVERIFIED |
| AEAdi Engineering Solutions LLC | Mount Prospect | — | ◇ UNVERIFIED |
| ASAdvanced Security Group INC | Chicago | — | ◇ UNVERIFIED |
| AGAdvance Grinding Services, INC. | Bedford Park | — | ◇ UNVERIFIED |
| AVAdvances Valve Technologies | Elk Grove Village | — | ◇ UNVERIFIED |
| ASAdvantage Structures LLC | Chicago | — | ◇ UNVERIFIED |
| APAdvertising Products, Inc | Elk Grove Village | — | ◇ UNVERIFIED |
| AIAen Industries, INC. | Chicago Heights | — | ◇ UNVERIFIED |
| ABAetna Bearing CO | Chicago | — | ◇ UNVERIFIED |
| AWAlloy Welding | Melrose Park | — | ◇ UNVERIFIED |
| ASAll Star Professional Coatings | Chicago | — | ◇ UNVERIFIED |
| AMAlpha Machine Corporation | Tinley Park | — | ◇ UNVERIFIED |
| AAAmerican Axle & Manufacturing Holdings, INC. | Chicago | — | ◇ UNVERIFIED |
| ADAmerican Drilling and Protoyping INC. | Wheeling | — | ◇ UNVERIFIED |
| ASAmerican Steel Fabricators, INC. | Melrose Park | — | ◇ UNVERIFIED |
| AMAntarctic Mechanical Services, INC. Dba Ams Mechanical Systems | Evanston | — | ◇ UNVERIFIED |
| AUArrows Up, LLC | Arlington Heights | — | ◇ UNVERIFIED |
| AWArt Wire Works Acquisiition, INC. | Bedford Park | — | ◇ UNVERIFIED |
| ASA&s Sambo LLC | Chicago Heights | — | ◇ UNVERIFIED |
| ARAssociated Rack Corporation Dba American Rack Company | Chicago | — | ◇ UNVERIFIED |
| AIAstroblast INC | Elgin | — | ◇ UNVERIFIED |
| AFA.t.a. Finishing Corporation | Skokie | — | ◇ UNVERIFIED |
| AIAtf, Inc., Dba Accurate Threaded Fasteners, INC. | Lincolnwood | — | ◇ UNVERIFIED |
| AIAtkore International | Harvey | — | ◇ UNVERIFIED |
| ACAvis Commercial | Chicago | — | ◇ UNVERIFIED |
| BBBest Brake Die, INC. | Crestwood | — | ◇ UNVERIFIED |
| BSBlock Steel | Skokie | — | ◇ UNVERIFIED |
| BMBretford Mfg INC | Schiller Park | — | ◇ UNVERIFIED |
| BMBright Metal Finishing CO | Chicago | — | ◇ UNVERIFIED |
| BPB&t Polishing INC | Northlake | — | ◇ UNVERIFIED |
| BMBuell Manufacturing Company | Lyons | — | ◇ UNVERIFIED |
| CCCalumet Container Corporation | Chicago | — | ◇ UNVERIFIED |
| CHCARR Holdings, LLC | Elk Grove Village | — | ◇ UNVERIFIED |
| CTCasward Tool Works | Chicago | — | ◇ UNVERIFIED |
| CSCaz & Susan Szydlo Enterprises L.L.C. | Elk Grove Village | — | ◇ UNVERIFIED |
| CBC & B Welders, INC. | Chicago | — | ◇ UNVERIFIED |
| CSCentral Sheet Metal Products, INC. | Skokie | — | ◇ UNVERIFIED |
| CIChem-plate Industries INC | Harvey | — | ◇ UNVERIFIED |
| CIChem-plate Industries INC | Elk Grove Village | — | ◇ UNVERIFIED |
 Chicago Anodizing Company | Chicago | — | ◇ UNVERIFIED |
| Chicago Anodizing Company | Chicago | — | ◇ UNVERIFIED |
| Chicago Anodizing Company | Chicago | — | ◇ UNVERIFIED |
| CMChicago Metal Polishing | Chicago | — | ◇ UNVERIFIED |
| CMCHICAGO METAL POLISHING, Inc. | Chicago | — | ◇ UNVERIFIED |
 Chicago Precision, INC. | Elk Grove Village | — | ◇ UNVERIFIED |
