Public record · Illinois
Cook County: 4,088 companies on record.
The companies the public registers place in Cook County, Illinois, by sector, as DealSTE read them — read 8 Nov 2026. Each opens on its own record page: registration, sites, permits, liens and compliance, each with its register.
| Sector | Companies |
|---|---|
| Defense and federal contracting | 1,174 |
| Manufacturing | 1,066 |
| Auto services — repair, collision, tire | 849 |
| Professional services — accounting, engineering, insurance | 202 |
| Distribution & wholesale | 162 |
| Healthcare — medical, dental & home health | 145 |
| Trades — HVAC, plumbing, electrical, mechanical | 88 |
| Retail — specialty, convenience & liquor | 73 |
| Home construction & remodeling | 59 |
| Trucking | 56 |
| Funeral homes | 46 |
| IT & managed services | 39 |
| Staffing | 28 |
| Waste hauling, roll-off & recycling | 23 |
| Restaurants | 21 |
| Commercial & specialty contracting | 20 |
| Equipment rental | 16 |
| Commercial cleaning & facilities services | 5 |
| Car washes & quick lube | 4 |
| Landscaping, lawn care & grounds | 3 |
| Veterinary practices | 3 |
| Crushed stone | 2 |
| Pest control | 2 |
| Sand and gravel | 1 |
| Self-storage & small commercial property | 1 |
| Company | Sector | City |
|---|---|---|
| MillerKnoll | Manufacturing | Chicago |
| Anheuser-Busch | Manufacturing | Chicago |
| Intertape Polymer Group | Manufacturing | Chicago |
| Target Metal Blanking | Manufacturing | Sauk Village |
| GF Foods LLC | Manufacturing | Chicago |
| Manor Tool & Mfg Company | Manufacturing | Schiller Park |
| MJ Celco, Inc. | Manufacturing | Schiller Park |
| PVS Chemicals, Inc. | Manufacturing | Buffalo |
| Metco Treating Development Co | Manufacturing | Chicago |
| Nobert Plating Co. | Manufacturing | Chicago |
| 2000 Plus Groups Dba Crescent Foods | Manufacturing | Chicago |
| Aargus Plastics, Inc. | Manufacturing | Chicago |
| Amft | Manufacturing | Morton Grove |
| Arlington Plating Acquisition Company | Manufacturing | Palatine |
| Arrow Home Products Co LLC | Manufacturing | Elk Grove Village |
| Century Plating Company | Manufacturing | Chicago |
| Concise Industries | Manufacturing | Elk Grove Vilage |
| Electronic Interconnect Corp | Manufacturing | Elk Grove Village |
| Elgin Sweeping Services, Inc. | Manufacturing | Chicago |
| GAM Enterprises | Manufacturing | Mt. Prospect |
| INSULATED PANEL COMPANY | Home construction & remodeling | SCHILLER PARK |
| Mech-Tronics | Manufacturing | Melrose Park |
| OKAYA (U.S.A.), INC. | Distribution & wholesale | ARLINGTON HTS |
| Permatron Corp | Manufacturing | Elk Grove Village |
| Potomac Corp | Manufacturing | Bridgeview |
| Pursuit Aerospace - Larson Forge | Manufacturing | Chicago |
| Regis Technologies, Inc. | Manufacturing | Morton Grove |
| RF Mau Co | Manufacturing | Lincolnwood |
| Select or enter | Manufacturing | Blue Island |
| Sievert Electric Service and Sales Co Inc | Manufacturing | Forest Park |
| TH Lemont Inc | Manufacturing | Countryside |
| Topy Precision Mfg. Inc. | Manufacturing | Elk Grove Village |
| Tri-Fin | Manufacturing | Elk Grove Village |
| Unity Manufacturing Company | Manufacturing | Chicago |
| Wieland Metals WMC | Manufacturing | Wheeling |
| Ace Midwest | Manufacturing | Chicago |
| Aluminum Coil Anodizing Corporation | Manufacturing | Streamwood |
| CHICAGO TESTING LABORATORY INC | Professional services — accounting, engineering, insurance | NORTHBROOK |
| Converting Technology INC | Manufacturing | Elk Grove |
| Creation Technologies | Manufacturing | Wheeling |
| Elegant Packaging | Manufacturing | Cicero |
| ERA Industries, Inc. - Wheeling | Manufacturing | Wheeling |
| FULLERTON ENGINEERING CONSULTANTS, LLC | Professional services — accounting, engineering, insurance | SCHAUMBURG |
| General Packaging Products | Manufacturing | Chicago |
| Imageworks Manufacturing, Inc. | Manufacturing | Park Forest |
| Lyon & Healy Corporation | Manufacturing | Chicago |
| National Power Corporation | Manufacturing | Chicago |
| Ozinga Chicago RMC, Inc. | Manufacturing | Chicago |
| REFLECTION WINDOW COMPANY, LLC | Trades — HVAC, plumbing, electrical, mechanical | CHICAGO |
| Silbrico Corporation | Manufacturing | Hodgkins |
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