| JCJl Clark INC | Rockford | IL | Printing and Related Support Activities323111 | — | ◐ LIKELY ACTIVE |
| JMJ & M Plating CO | Rockford | IL | Fabricated Metal Product Manufacturing332722 | — | ◐ LIKELY ACTIVE |
| KNKent Nutrition Group INC | Rockford | IL | Food Manufacturing311119 | — | ◐ LIKELY ACTIVE |
| KFK&j Finishing INC | Rockford | IL | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| MPMnp Precision Parts LLC | Rockford | IL | Fabricated Metal Product Manufacturing332722 | — | ◐ LIKELY ACTIVE |
| MHMte Hydraulics, INC. | Rockford | IL | Machinery Manufacturing333996 | — | ◐ LIKELY ACTIVE |
| PHParker Hannifin/cylinder Division | Rockford | IL | Machinery Manufacturing333995 | — | ◐ LIKELY ACTIVE |
| RFRocknel Fastener INC | Rockford | IL | Fabricated Metal Product Manufacturing332722 | — | ◐ LIKELY ACTIVE |
| RORust Oleum | Rockford | IL | Chemical Manufacturing325510 | — | ◐ LIKELY ACTIVE |
| SWSherwin Williams CO the | Rockford | IL | Chemical Manufacturing325510 | — | ◐ LIKELY ACTIVE |
| TCTestor CORP | Rockford | IL | Chemical Manufacturing325510 | — | ◐ LIKELY ACTIVE |
| TTThe Testor Corporation - Blackhawk Park Avenue | Rockford | IL | Chemical Manufacturing325510 | — | ◐ LIKELY ACTIVE |
| VRValspar - Rockford Facility | Rockford | IL | Chemical Manufacturing325510 | — | ◐ LIKELY ACTIVE |
Evergreen Warehouse INC | Rockford | IL | Fabricated Metal Product Manufacturing332721 | — | ◐ LIKELY ACTIVE |
| BIBarnes International INC | Rockford | IL | Machinery Manufacturing333999 | — | ◇ UNVERIFIED |
| IPInternational Paper CO | Rockford | IL | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| MGMondelez Global LLC | Rockford | IL | Food Manufacturing311340 | — | ◇ UNVERIFIED |
| BIBehr Iron & Metal | Rockford | IL | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
| DADixon Automatic Tool INC | Rockford | IL | Machinery Manufacturing333249 | 20-99 | ◐ LIKELY ACTIVE |
| FOFreeway of Rockford | Rockford | IL | Fabricated Metal Product Manufacturing332722 | — | ◐ LIKELY ACTIVE |
| HSHamilton Sundstrand Corporation | Rockford | IL | Transportation Equipment Manufacturing336412 | — | ◐ LIKELY ACTIVE |
| HSHamilton Sundstrand Corporation | Rockford | IL | Transportation Equipment Manufacturing336412 | — | ◐ LIKELY ACTIVE |
| ICIngersoll Cutting Tool Company | Rockford | IL | Machinery Manufacturing333515 | 100-499 | ◐ LIKELY ACTIVE |
| KKomline-Barnes | Rockford | IL | Machinery Manufacturing333999 | 100-499 | ◐ LIKELY ACTIVE |
| LRLubricants Rockford | Rockford | IL | Petroleum and Coal Products Manufacturing324191 | 1-19 | ◐ LIKELY ACTIVE |
| MAMartin Automatic CO | Rockford | IL | Machinery Manufacturing333244 | 100-499 | ◐ LIKELY ACTIVE |
| PIPhelps Industries, LLC | Rockford | IL | Food Manufacturing311111 | 20-99 | ◐ LIKELY ACTIVE |
| RFRockford Fastener, INC. | Rockford | IL | Fabricated Metal Product Manufacturing332722 | 20-99 | ◐ LIKELY ACTIVE |
| RHRockford Heat Treaters INC | Rockford | IL | Fabricated Metal Product Manufacturing332811 | 20-99 | ◐ LIKELY ACTIVE |
| RSRockford Silk Screen | Rockford | IL | Printing and Related Support Activities323113 | — | ◐ LIKELY ACTIVE |
| RSRockford Spring CO. | Rockford | IL | Fabricated Metal Product Manufacturing332613 | 20-99 | ◐ LIKELY ACTIVE |
| SSSafeway Services | Rockford | IL | Fabricated Metal Product Manufacturing332812 | — | ◐ LIKELY ACTIVE |
| SPSlidematic Precision Components | Rockford | IL | Fabricated Metal Product Manufacturing332722 | 100-499 | ◐ LIKELY ACTIVE |
| WIWoodward INC | Rockford | IL | Fabricated Metal Product Manufacturing332912 | — | ◐ LIKELY ACTIVE |
| ALAir Liquide Advanced Technologies US LLC | Rockford | IL | Chemical Manufacturing325120 | — | ◐ LIKELY ACTIVE |
| CTCertified Technology INC | Rockford | IL | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| FGForge Group Rockford LLC | Rockford | IL | Fabricated Metal Product Manufacturing332111 | — | ◐ LIKELY ACTIVE |
| NINd Industries INC | Rockford | IL | Fabricated Metal Product Manufacturing332812 | — | ◐ LIKELY ACTIVE |
| PPPci Pharmaceutical Services | Rockford | IL | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| PBPierce Biotechnology INC | Rockford | IL | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
| QSQuiktrip Store No. 7313 | Rockford | IL | Miscellaneous Manufacturing339999 | — | ◐ LIKELY ACTIVE |
| SCSams Club 8297 | Rockford | IL | Miscellaneous Manufacturing339999 | — | ◐ LIKELY ACTIVE |
| SSSpecialty Screw CORP | Rockford | IL | Fabricated Metal Product Manufacturing332722 | — | ◐ LIKELY ACTIVE |
| SNStandox North America | Rockford | IL | Chemical Manufacturing325520 | — | ◐ LIKELY ACTIVE |
| TBTan Books and Publishers INC. | Rockford | IL | Miscellaneous Manufacturing339999 | — | ◐ LIKELY ACTIVE |
| WIWeldments INC | Rockford | IL | Machinery Manufacturing333992 | — | ◐ LIKELY ACTIVE |
| ALA-1 Lapping & Machine | Rockford | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| AWA-1 Wire Tech INC. | Rockford | IL | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| AHAai Heavy Rebuilders | Rockford | IL | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| AAAlways Aluminum | Rockford | IL | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |