Mennie's Machine CO | Mark | 100–499 | ● ACTIVE |
Mercury Products CORP | Schaumburg | 100–499 | ● ACTIVE |
Metal Impact LLC | Elk Grove Village | — | ● ACTIVE |
| MTMetals Technology CORP | Carol Stream | 20–99 | ● ACTIVE |
| MTMid-state Tank CO INC | Sullivan | 100–499 | ● ACTIVE |
| MFMoline Forge INC | Moline | 20–99 | ● ACTIVE |
Morgan Bronze Products, INC. | Lake Zurich | — | ● ACTIVE |
Multax LLC | Morton | — | ● ACTIVE |
Murphy Machine Products, INC. | Wood Dale | 20–99 | ● ACTIVE |
New Lenox Machine Co., INC. | Dwight | 1–19 | ● ACTIVE |
Nitrex INC | Aurora | — | ● ACTIVE |
North American Safety Products, INC | Mokena | 1–19 | ● ACTIVE |
| OCO. C. Keckley Company | Skokie | 20–99 | ● ACTIVE |
Odin Fabrication, INC. | Elburn | 1–19 | ● ACTIVE |
Pacific Bearing Company | Roscoe | 100–499 | ● ACTIVE |
Panek Precision Products LLC | Northbrook | 100–499 | ● ACTIVE |
Peerless Industries, INC. | Aurora | 100–499 | ● ACTIVE |
Pegasus Mfg INC | Galesburg | 20–99 | ● ACTIVE |
Pewag INC | Bolingbrook | 100–499 | ● ACTIVE |
Polaris Laser Laminations, LLC | West Chicago | 20–99 | ● ACTIVE |
Progressive Recovery INC | Dupo | — | ● ACTIVE |
Quality Metal Products INC | Peoria | 100–499 | ● ACTIVE |
| RPReliable Plating CORP | Chicago | — | ● ACTIVE |
| RCRobert C. Weisheit CO INC | Glendale Heights | 20–99 | ● ACTIVE |
Rockford Ball Screw Company | Rockford | 20–99 | ● ACTIVE |
Rock River Arms INC | Colona | 20–99 | ● ACTIVE |
Ryan Metal Products INC | Kankakee | 20–99 | ● ACTIVE |
Safety Storage, INC | Charleston | 20–99 | ● ACTIVE |
Saliba Industries Holdings, LLC | Waukegan | 1–19 | ● ACTIVE |
Saporito Finishing CO | Cicero | 100–499 | ● ACTIVE |
Schmid Tool & Engineering CORP | Villa Park | — | ● ACTIVE |
Scot Forge Company | Spring Grove | 500+ | ● ACTIVE |
| SFSenior Flexonics | Bartlett | 100–499 | ● ACTIVE |
Servi-sure, LLC | Chicago | 20–99 | ● ACTIVE |
Sko-die, LLC | Morton Grove | 20–99 | ● ACTIVE |
| SISkolnik Industries LLC | Chicago | 100–499 | ● ACTIVE |
| SVSloan Valve CO | Franklin Park | 500+ | ● ACTIVE |
Smalley Steel Ring CO. | Lake Zurich | 500+ | ● ACTIVE |
Smith & Richardson Manufacturing CO | Geneva | 20–99 | ● ACTIVE |
| SHSouth Holland Metal Finishing | Monee | 20–99 | ● ACTIVE |
Spectra-tech, INC. | Hanover Park | 20–99 | ● ACTIVE |
| SSSpraying Systems CO | Glendale Heights | — | ● ACTIVE |
Stanley Machining & Tool CORP | Carpentersville | 100–499 | ● ACTIVE |
Stanley Spring and Stamping CORP | Chicago | 20–99 | ● ACTIVE |
Steamgard LLC | Vernon Hills | 1–19 | ● ACTIVE |
Superheat Fgh Services INC | New Lenox | — | ● ACTIVE |
Swiss Automation, INC. | Barrington | 100–499 | ● ACTIVE |
Target Laser & Machining, INC. | Rockford | 20–99 | ● ACTIVE |
Tech-weld INC | Sycamore | 1–19 | ● ACTIVE |
The Bennu Group INC | South Holland | 20–99 | ● ACTIVE |