| DCDonaldson Company, INC. | Dixon | 100–499 | ● ACTIVE |
Drumbeaters of America INC | Elburn | — | ● ACTIVE |
Ebs Ink-jet Systems Usa, INC. | Libertyville | — | ● ACTIVE |
Encore Packaging LLC | Lake Villa | 20–99 | ● ACTIVE |
Essex Electro Engineers INC | Schaumburg | — | ● ACTIVE |
Evac North America INC | Cherry Valley | 20–99 | ● ACTIVE |
Fjw Optical Systems, INC | Palatine | — | ● ACTIVE |
Flender Corporation | Elgin | — | ● ACTIVE |
Flow Pro Products INC | Romeoville | — | ● ACTIVE |
Ford Tool & Machining INC | Loves Park | — | ● ACTIVE |
Forest City Gear Company | Roscoe | 100–499 | ● ACTIVE |
General Assembly & Manufacturing CORP | Cary | 20–99 | ● ACTIVE |
| GIGett Industries, LTD. | Milan | 20–99 | ● ACTIVE |
Graymills Corporation | Broadview | 20–99 | ● ACTIVE |
Haskris CO | Elmhurst | 100–499 | ● ACTIVE |
Henry Technologies, INC. | Chatham | — | ● ACTIVE |
Hommer Tool & Mfg., INC. | Arlington Hts | — | ● ACTIVE |
Honsa Ergonomic Technologies LLC | Milan | — | ● ACTIVE |
Hyspan Precision Products INC | South Holland | — | ● ACTIVE |
Ib International, INC. | Cary | — | ● ACTIVE |
Industrial Kinetics INC | Downers Grove | 20–99 | ● ACTIVE |
Industrial Motion Control, LLC | Wheeling | — | ● ACTIVE |
Ipsen, INC | Cherry Valley | — | ● ACTIVE |
| JCJohn Crane, INC | Morton Grove | — | ● ACTIVE |
Kold-ban International LTD | Lake in the Hills | 20–99 | ● ACTIVE |
| KCKress CORP | Brimfield | 100–499 | ● ACTIVE |
La Frenz Pattern Company, Incorporated | Moline | — | ● ACTIVE |
| LOLmt Onsrud | Waukegan | 100–499 | ● ACTIVE |
Lovejoy, LLC | Downers Grove | — | ● ACTIVE |
| MMMaclean Mallard LLC | Sterling | 100–499 | ● ACTIVE |
| MFMoline Forge INC | Moline | 20–99 | ● ACTIVE |
Nimco CORP | Crystal Lake | 20–99 | ● ACTIVE |
| OMOberg Medical XL Division | Chicago | 100–499 | ● ACTIVE |
Pacific Press Holdings LLC | Mount Carmel | 20–99 | ● ACTIVE |
Paratech INC | Frankfort | 100–499 | ● ACTIVE |
Pentair Filtration Solutions, LLC | Hanover Park | 100–499 | ● ACTIVE |
Polaris Laser Laminations, LLC | West Chicago | — | ● ACTIVE |
Progress Rail Locomotive INC. | Mccook | — | ● ACTIVE |
Richards-wilcox INC | Aurora | — | ● ACTIVE |
| SPSchultes Precision Manufacturing INC | Buffalo Grove | 100–499 | ● ACTIVE |
Sciaky INC | Chicago | — | ● ACTIVE |
Sievert Electric Service and Sales Company | Forest Park | 20–99 | ● ACTIVE |
Star Engineering LLC | Addison | — | ● ACTIVE |
Tapco Cutting Tools INC | Loves Park | — | ● ACTIVE |
| TETaylor Edm Specialties LLC | Wauconda | — | ● ACTIVE |
Tempco Electric Heater Corporation | Wood Dale | — | ● ACTIVE |
The New York Blower Company | Willowbrook | 20–99 | ● ACTIVE |
Thermal Care INC | Niles | — | ● ACTIVE |
Welding Company of America | Aurora | — | ● ACTIVE |
| WTWestran Thermal Processing, LLC | South Beloit | 20–99 | ● ACTIVE |