| ALAbbott Laboratories INC. | Abbott Park | IL | Chemical Manufacturing325413 | 500+ | ● ACTIVE |
Abbott Molecular INC. | Des Plaines | IL | Chemical Manufacturing325413 | — | ● ACTIVE |
Abbvie INC | North Chicago | IL | Chemical Manufacturing325412 | 500+ | ● ACTIVE |
Absolute Process Instruments INC | Libertyville | IL | Computer and Electronic Product Manufacturing334513 | 1-19 | ● ACTIVE |
Ab Specialty Silicones, LLC | Waukegan | IL | Chemical Manufacturing325199 | 20-99 | ● ACTIVE |
Accelerated Assemblies, INC | Elk Grove Vlg | IL | Computer and Electronic Product Manufacturing334418 | — | ● ACTIVE |
Accurate Felt & Gasket Manufacturing CO | Cicero | IL | Miscellaneous Manufacturing339991 | 20-99 | ● ACTIVE |
| APAccurate Perforating Co., INC. | Chicago | IL | Fabricated Metal Product Manufacturing332116 | 100-499 | ● ACTIVE |
Ace Metal Crafts CO | Bensenville | IL | Fabricated Metal Product Manufacturing332999 | — | ● ACTIVE |
Acme Alliance LLC | Northbrook | IL | Primary Metal Manufacturing331523 | 100-499 | ● ACTIVE |
Acme Industrial CO | Carpentersville | IL | Fabricated Metal Product Manufacturing332216 | 100-499 | ● ACTIVE |
| AEAdkins Energy LLC | Lena | IL | Food Manufacturing311119 | 20-99 | ● ACTIVE |
Advanced Machine & Engineering CO | Rockford | IL | Fabricated Metal Product Manufacturing332710 | 100-499 | ● ACTIVE |
Advanced Mobility & Shelter Technologies, LLC | University Park | IL | Transportation Equipment Manufacturing336212 | — | ● ACTIVE |
| APAdvanced Plastic CORP | Lincolnwood | IL | Plastics and Rubber Products Manufacturing326121 | 100-499 | ● ACTIVE |
Aero Rubber CO INC | Tinley Park | IL | Plastics and Rubber Products Manufacturing326299 | 20-99 | ● ACTIVE |
Affton Fabricating and Welding Co., INC. | Sauget | IL | Fabricated Metal Product Manufacturing332312 | 20-99 | ● ACTIVE |
A. Finkl & Sons CO. | Chicago | IL | Primary Metal Manufacturing331110 | 100-499 | ● ACTIVE |
| ACAfton Chemical Corporation | Sauget | IL | Petroleum and Coal Products Manufacturing324191 | 100-499 | ● ACTIVE |
| AFAhlstrom Filtration, LLC. | Taylorville | IL | Paper Manufacturing322120 | 20-99 | ● ACTIVE |
| AMAisin Mfg Illinois LLC | Marion | IL | Transportation Equipment Manufacturing336390 | 500+ | ● ACTIVE |
| AIA.j.r. Industries, INC. | Elk Grove Village | IL | Fabricated Metal Product Manufacturing332710 | 20-99 | ● ACTIVE |
| ALAjs Lena Maid Meats INC | Lena | IL | Food Manufacturing311611 | — | ● ACTIVE |
Aldrico, INC. | Wyoming | IL | Fabricated Metal Product Manufacturing332410 | 20-99 | ● ACTIVE |
Align Production Systems LLC | Decatur | IL | Machinery Manufacturing333111 | 20-99 | ● ACTIVE |
Allied Locke Industries INC | Dixon | IL | Primary Metal Manufacturing331511 | 100-499 | ● ACTIVE |
| ATAllied Tube & Conduit Corporation | Harvey | IL | Primary Metal Manufacturing331210 | — | ● ACTIVE |
Alpha Baking CO INC | Chicago | IL | Food Manufacturing311812 | — | ● ACTIVE |
Altathera Pharmaceuticals LLC | Chicago | IL | Chemical Manufacturing325412 | 20-99 | ● ACTIVE |
| ASAlton Steel INC | Alton | IL | Primary Metal Manufacturing331110 | 100-499 | ● ACTIVE |
Alu-bra Foundry, INC. | Bensenville | IL | Primary Metal Manufacturing331524 | 20-99 | ● ACTIVE |
American Grinding & Machine CO | Chicago | IL | Fabricated Metal Product Manufacturing332313 | 20-99 | ● ACTIVE |
| ALAmerican Labelmark Company | Chicago | IL | Printing and Related Support Activities323111 | 100-499 | ● ACTIVE |
American Standard Circuits, LLC | West Chicago | IL | Computer and Electronic Product Manufacturing334412 | 100-499 | ● ACTIVE |
Amerline Enterprises CO INC | Schiller Park | IL | Computer and Electronic Product Manufacturing334417 | 20-99 | ● ACTIVE |
Amglo Kemlite Laboratories, INC. | Bensenville | IL | Electrical Equipment, Appliance & Component Manufacturing335999 | 100-499 | ● ACTIVE |
Amity Packing Company, INC. | Chicago | IL | Food Manufacturing311612 | — | ● ACTIVE |
| AMAmtab Manufacturing Corporation | Bensenville | IL | Furniture and Related Product Manufacturing337127 | 100-499 | ● ACTIVE |
Anchor-harvey Components LLC | Freeport | IL | Primary Metal Manufacturing331110 | 1-19 | ● ACTIVE |
Apex Engineering Products CORP | Aurora | IL | Chemical Manufacturing325180 | 1-19 | ● ACTIVE |
Apl Engineered Materials, INC | Urbana | IL | Chemical Manufacturing325180 | 20-99 | ● ACTIVE |
| AHApplied Hydraulics Corporation | Chicago | IL | Fabricated Metal Product Manufacturing332912 | 1-19 | ● ACTIVE |
Aqua-aerobic Systems INC | Loves Park | IL | Machinery Manufacturing333310 | 100-499 | ● ACTIVE |
Archer Daniels Midland Company | Decatur | IL | Food Manufacturing311221 | — | ● ACTIVE |
Arc-tronics INC | Elk Grove Village | IL | Computer and Electronic Product Manufacturing334418 | 100-499 | ● ACTIVE |
Argentum Medical, LLC | Geneva | IL | Miscellaneous Manufacturing339113 | 20-99 | ● ACTIVE |
Ari Industries INC | Addison | IL | Computer and Electronic Product Manufacturing334413 | — | ● ACTIVE |
Ark Technologies, INC. | Saint Charles | IL | Primary Metal Manufacturing331318 | 20-99 | ● ACTIVE |
Armoloy of Illinois INC | Dekalb | IL | Fabricated Metal Product Manufacturing332813 | 20-99 | ● ACTIVE |
Arrow Gear LLC | Downers Grove | IL | Machinery Manufacturing333612 | 100-499 | ● ACTIVE |