| NANufarm Americas INC | Alsip, IL | Chemical Manufacturing325320 | 20–99 | ● ACTIVE |
| NPNyco Products CO | Countryside, IL | Chemical Manufacturing325611 | 20–99 | ● ACTIVE |
| OGOsi Group | Geneva, IL | Food Manufacturing311412 | 100–499 | ● ACTIVE |
| OIOsi Industries LLC | Chicago, IL | Food Manufacturing311412 | 500+ | ● ACTIVE |
Panek Precision Products LLC | Northbrook, IL | Fabricated Metal Product Manufacturing332710 | 100–499 | ● ACTIVE |
Paxxus INC | Addison, IL | Paper Manufacturing322220 | 100–499 | ● ACTIVE |
Performance Health Systems LLC | Northbrook, IL | Miscellaneous Manufacturing339920 | — | ● ACTIVE |
Polyjohn Enterprises, LLC | Whiting, IN | Plastics and Rubber Products Manufacturing326121 | — | ● ACTIVE |
| PPPowder Processing Technology LLC | Valparaiso, IN | Fabricated Metal Product Manufacturing332117 | 20–99 | ● ACTIVE |
Press America INC | Elk Grove Village, IL | Printing and Related Support Activities323110 | 20–99 | ● ACTIVE |
| QSQuality Snack Foods INC | Alsip, IL | Food Manufacturing311612 | 100–499 | ● ACTIVE |
Ravenswood Studio INC | Lincolnwood, IL | Machinery Manufacturing333414 | 100–499 | ● ACTIVE |
| RTRegis Technologies INC | Morton Grove, IL | Chemical Manufacturing325199 | 20–99 | ● ACTIVE |
Ribbon Webbing CORP | Chicago, IL | Textile Mills313220 | 100–499 | ● ACTIVE |
Rieke Office Interiors INC | Elgin, IL | Furniture and Related Product Manufacturing337211 | 20–99 | ● ACTIVE |
| RCRogan Corporation | Northbrook, IL | Plastics and Rubber Products Manufacturing326199 | 20–99 | ● ACTIVE |
| SSSafety-kleen Systems, INC. | East Chicago, IN | Petroleum and Coal Products Manufacturing324191 | 20–99 | ● ACTIVE |
Saporito Finishing CO | Cicero, IL | Fabricated Metal Product Manufacturing332813 | 100–499 | ● ACTIVE |
S&c Electric Company | Chicago, IL | Electrical Equipment, Appliance & Component Manufacturing335313 | — | ● ACTIVE |
Scot Forge Company | Spring Grove, IL | Fabricated Metal Product Manufacturing332111 | — | ● ACTIVE |
Seating Concepts INC | Rockdale, IL | Plastics and Rubber Products Manufacturing326199 | — | ● ACTIVE |
| SFSenior Flexonics | Bartlett, IL | Fabricated Metal Product Manufacturing332999 | 100–499 | ● ACTIVE |
Servi-sure, LLC | Chicago, IL | Fabricated Metal Product Manufacturing332999 | — | ● ACTIVE |
| SMSipi Metals CORP | Chicago, IL | Primary Metal Manufacturing331410 | 100–499 | ● ACTIVE |
| SISkolnik Industries LLC | Chicago, IL | Fabricated Metal Product Manufacturing332439 | 100–499 | ● ACTIVE |
Smalley Steel Ring CO. | Lake Zurich, IL | Fabricated Metal Product Manufacturing332613 | 500+ | ● ACTIVE |
| SPSmithfield Packaged Meats CORP | Saint Charles, IL | Food Manufacturing311611 | 100–499 | ● ACTIVE |
Smith & Richardson Manufacturing CO | Geneva, IL | Chemical Manufacturing325998 | 20–99 | ● ACTIVE |
| SCSouth Chicago Packing LLC | Chicago, IL | Food Manufacturing311224 | 100–499 | ● ACTIVE |
| SHSouth Holland Metal Finishing | Monee, IL | Fabricated Metal Product Manufacturing332811 | 20–99 | ● ACTIVE |
Sponge-cushion, INC | Morris, IL | Plastics and Rubber Products Manufacturing326150 | 20–99 | ● ACTIVE |
| SSSpraying Systems CO | Glendale Heights, IL | Fabricated Metal Product Manufacturing332999 | — | ● ACTIVE |
Sterling Site Access Solutions LLC | Phoenix, IL | Wood Product Manufacturing321999 | 100–499 | ● ACTIVE |
| SASunstar Americas, INC. | Schaumburg, IL | Machinery Manufacturing333994 | 100–499 | ● ACTIVE |
Swiss Automation, INC. | Barrington, IL | Fabricated Metal Product Manufacturing332721 | 100–499 | ● ACTIVE |
Talbert Manufacturing INC | Rensselaer, IN | Transportation Equipment Manufacturing336212 | 100–499 | ● ACTIVE |
| TSTaubensee Steel and Wire CO | Wheeling, IL | Primary Metal Manufacturing331222 | 100–499 | ● ACTIVE |
The Church Street Brewing Company, LLC | Itasca, IL | Beverage and Tobacco Product Manufacturing312120 | — | ● ACTIVE |
| TSTricor Systems INC | Elgin, IL | Computer and Electronic Product Manufacturing334418 | 20–99 | ● ACTIVE |
Uresil LLC | Skokie, IL | Miscellaneous Manufacturing339112 | — | ● ACTIVE |
Urschel Laboratories, INC. | Chesterton, IN | Primary Metal Manufacturing331512 | 500+ | ● ACTIVE |
| VNVan Norman Molding CO | Bridgeview, IL | Plastics and Rubber Products Manufacturing326121 | 20–99 | ● ACTIVE |
Videojet Technologies INC. | Wood Dale, IL | Machinery Manufacturing333244 | 100–499 | ● ACTIVE |
| WBWaltz Brothers, INC. | Wheeling, IL | Fabricated Metal Product Manufacturing332721 | — | ● ACTIVE |
Webster-hoff Corporation | Glendale Heights, IL | Fabricated Metal Product Manufacturing332117 | 20–99 | ● ACTIVE |
Welch Bros., INC. | Elgin, IL | Nonmetallic Mineral Product Manufacturing327390 | 100–499 | ● ACTIVE |
| WSWorthington Steel | Porter, IN | Primary Metal Manufacturing331221 | 100–499 | ● ACTIVE |
2xl Corporation | Bolingbrook, IL | Miscellaneous Manufacturing339920 | — | ● ACTIVE |
Abbott Rubber CO INC | Itasca, IL | Plastics and Rubber Products Manufacturing326220 | — | ● ACTIVE |
| AIAbbvie INC | North Chicago, IL | Chemical Manufacturing325412 | — | ● ACTIVE |