Chem Processing INC | Rockford | 20–99 | ● ACTIVE |
Rockford Ball Screw Company | Rockford | 20–99 | ● ACTIVE |
| AHAdvanced Heat Treating INC | Loves Park | — | ● ACTIVE |
Advanced Machine & Engineering CO | Rockford | 100–499 | ● ACTIVE |
Electrol Specialties Company | South Beloit | — | ● ACTIVE |
Modern Advanced Manufacturing LLC | Rockford | 20–99 | ● ACTIVE |
Pacific Bearing Company | Roscoe | — | ● ACTIVE |
Sems and Specials, INC. | Rockford | 20–99 | ● ACTIVE |
Target Laser & Machining, INC. | Rockford | — | ● ACTIVE |
Alert Tubing Fabricators INC. | Loves Park | — | ● ACTIVE |
Brynolf Manufacturing INC | Rockford | — | ● ACTIVE |
| CAClinkenbeard & Associates INC | South Beloit | — | ● ACTIVE |
Comet Fabricating & Welding CO | Rockford | — | ● ACTIVE |
Dasco Pro, INC | Rockford | — | ● ACTIVE |
Dial Machine INC | Rockford | — | ● ACTIVE |
Emergent Manufacturing Solutions, LLC | Loves Park | — | ● ACTIVE |
| JSJefco Screw Machine Products INC | Loves Park | — | ● ACTIVE |
Kadon Aerospace LLC | Rockford | — | ● ACTIVE |
Ki Machine Tools & Productions INC | Loves Park | — | ● ACTIVE |
Rockford Rigging, INC. | Roscoe | — | ● ACTIVE |
Srm Ii, INC | South Beloit | — | ● ACTIVE |
Superior Joining Technologies, INC | Machesney Park | — | ● ACTIVE |
| BTBluewater Thermal Solutions-rockford | Rockford | 20–99 | ◐ LIKELY ACTIVE |
| RSRockford Spring CO | Rockford | 20–99 | ◐ LIKELY ACTIVE |
| ZCZenith Cutter INC | Loves Park | 20–99 | ◐ LIKELY ACTIVE |
| CMCurtis Metal Finishing CO | Machesney Park | — | ◐ LIKELY ACTIVE |
| FCForest City Technologies INC | Rockford | — | ◐ LIKELY ACTIVE |
| JMJ & M Plating | Rockford | 100–499 | ◐ LIKELY ACTIVE |
| SSSeward Screw LLC | Seward | 100–499 | ◐ LIKELY ACTIVE |
| JMJ & M Plating CO | Rockford | — | ◐ LIKELY ACTIVE |
| AGAzz Galvanizing Rockford LLC Dba Roger Bros Galvanizing LLC | Rockford | — | ◇ UNVERIFIED |
| EFEconomy Fasteners INC | Rockford | — | ◇ UNVERIFIED |
| KFK&j Finishing INC | Rockford | — | ◇ UNVERIFIED |
| MPMnp Precision Parts LLC | Rockford | — | ◇ UNVERIFIED |
| RFRocknel Fastener INC | Rockford | — | ◇ UNVERIFIED |
Evergreen Warehouse INC | Rockford | — | ◐ LIKELY ACTIVE |
| EHEaton Hydraulics | Machesney Park | — | ◐ LIKELY ACTIVE |
| FOFreeway of Rockford | Rockford | — | ◐ LIKELY ACTIVE |
| GAGe Aviation Systems LLC | Loves Park | — | ◐ LIKELY ACTIVE |
| HIHennig, INC | Machesney Park | — | ◐ LIKELY ACTIVE |
| JPJamco Products, INC. | South Beloit | 100–499 | ◐ LIKELY ACTIVE |
| PSProgressive Steel Treating, INC | Loves Park | — | ◐ LIKELY ACTIVE |
| RARockford Acquisition CO LLC Dba Rockford Specialties | Loves Park | — | ◐ LIKELY ACTIVE |
| RFRockford Fastener, INC. | Rockford | 20–99 | ◐ LIKELY ACTIVE |
| RHRockford Heat Treaters INC | Rockford | 20–99 | ◐ LIKELY ACTIVE |
| RSRockford Specialties Company | Loves Park | 20–99 | ◐ LIKELY ACTIVE |
| SSSafeway Services | Rockford | — | ◐ LIKELY ACTIVE |
| SPSlidematic Precision Components | Rockford | 100–499 | ◐ LIKELY ACTIVE |
| SMSwebco Mfg INC | Machesney Park | 20–99 | ◐ LIKELY ACTIVE |
| WIWoodward INC | Rockford | — | ◐ LIKELY ACTIVE |