| PFPmp Fermentation Products INC | Peoria | 20–99 | ● ACTIVE |
| PPolyconversions | Champaign | 100–499 | ● ACTIVE |
Precision Dose INC | South Beloit | 100–499 | ● ACTIVE |
Prochem Incorporated International | Rockford | — | ● ACTIVE |
Proteintech Group, INC. | Rosemont | — | ● ACTIVE |
Riverbend Energetics Mfg., LLC | Alton | 100–499 | ● ACTIVE |
| SBSb Boron Corporation | Bellwood | — | ● ACTIVE |
| SLSpecgx LLC | Greenville | 20–99 | ● ACTIVE |
Spherotech INC | Lake Forest | 20–99 | ● ACTIVE |
The W.w. Henry Company, L.p. | Bourbonnais | — | ● ACTIVE |
3d Resin Solutions, LLC | South Elgin | — | ● ACTIVE |
Abbott Laboratories INC. | North Chicago | — | ● ACTIVE |
| AUAbbvie US LLC | North Chicago | — | ● ACTIVE |
Accurate Color and Compounding, INC. | Aurora | — | ● ACTIVE |
| APAdvanz Pharma (us) CORP. | Bannockburn | — | ● ACTIVE |
Aeromotive Research and Defense Group, INC. | Rockford | — | ● ACTIVE |
Aether Fuels INC. | Chicago | — | ● ACTIVE |
Alba Bioscience, INC. | Chicago | — | ● ACTIVE |
Americo Chemical Products, LLC | Elgin | — | ● ACTIVE |
| AWAqualab Water Treatment INC | Prospect Heights | — | ● ACTIVE |
| ACAustin Chemical Company, INC. | Buffalo Grove | — | ● ACTIVE |
Biocare Labs, INC. | Posen | — | ● ACTIVE |
Biomist INC | Wheeling | — | ● ACTIVE |
Carolina Brands LLC | Jacksonville | — | ● ACTIVE |
Carus LLC | Peru | — | ● ACTIVE |
Cater Chemical CORP | Roselle | — | ● ACTIVE |
Cci Distribution Partners Corporation | Lemont | — | ● ACTIVE |
Celadyne Technologies, INC. | Chicago | — | ● ACTIVE |
| CICf Industries Nitrogen LLC | Deerfield | — | ● ACTIVE |
Chicago Chemical Distribution, LLC | Chicago | — | ● ACTIVE |
Clarke Mosquito Control Products, INC. | Saint Charles | — | ● ACTIVE |
Clayens Rockford, LLC | Machesney Park | — | ● ACTIVE |
| CLCre'a's Love Butter LLC | Yorkville | — | ● ACTIVE |
Cyclopure, INC. | Evanston | — | ● ACTIVE |
Dental Technologies, INC. | Lincolnwood | — | ● ACTIVE |
Deo Company LLC | Palatine | — | ● ACTIVE |
Durable Lubricants Corporation | Dolton | — | ● ACTIVE |
| EPEcli Products LLC | Aurora | — | ● ACTIVE |
Environetics INC | Lockport | — | ● ACTIVE |
Environmental Leverage INC | North Aurora | — | ● ACTIVE |
Eton Pharmaceuticals, INC. | Deer Park | — | ● ACTIVE |
| FLFinish Line USA INC. | Elgin | — | ● ACTIVE |
| FIFlextronics Int'l Usa, INC. | Buffalo Grove | 500+ | ● ACTIVE |
Floor Chem INC | Romeoville | — | ● ACTIVE |
| FAFontana Associates, INC. | Wauconda | — | ● ACTIVE |
Fqs LLC | Glen Ellyn | — | ● ACTIVE |
Fundamenstrals CORP. | Chicago | — | ● ACTIVE |
Global Packaging Development LLC | Batavia | — | ● ACTIVE |
Golden Care Botanicals, LLC | Crete | — | ● ACTIVE |
G Spot Studio Limited | Chicago | — | ● ACTIVE |