| Entity Name | Type | License # | City | Status | Action |
|---|---|---|---|---|---|
| ASI SECURITY SERVICES INCORPORATED | Business | 122001414 | RIVER FOREST | ACTIVE | Verify |
| ASPEN CONSULTING SERVICES INC | Business | 117000493 | WARRENVILLE | INOPERATIVE | Verify |
| ASSET SECURITY INC | Business | 122000851 | LOVES PARK | NOT RENEWED | Verify |
| ASSOCIATED SECURITY MANAGEMENT INC | Business | 102000116 | CICERO | ACTIVE | Verify |
| ASSOCIATED SECURITY SERVICE | Business | 117000339 | CHICAGO | NOT RENEWED | Verify |
| ASSOCIATES SECURITY SERVICE | Business | 122000060 | CHICAGO | NOT RENEWED | Verify |
| ASSURANT FIRE PROTECTION LLC | Business | 127001712 | WARRENVILLE | ACTIVE | Verify |
| ASSURED INVESTIGATION & CONSULTANTS INC | Business | 117000727 | FOX LAKE | NOT RENEWED | Verify |
| ASTRO LOCK AND KEY INC | Business | 127000518 | SKOKIE | NOT RENEWED | Verify |
| ASYMMETRIC STRATEGIES LLC | Business | 122001141 | CHICAGO | NOT RENEWED | Verify |
| ASYMMETRIC STRATEGIES LLC | Business | 117001511 | CHICAGO | NOT RENEWED | Verify |
| AT SYSTEMS SOUTHWEST INC | Business | 120500119 | DOLTON | NOT RENEWED | Verify |
| AT SYSTEMS SOUTHWEST INC | Business | 123000316 | BLOOMINGTON | NOT RENEWED | Verify |
| AT SYSTEMS SOUTHWEST INC | Business | 123000281 | ELMHURST | NOT RENEWED | Verify |
| AT SYSTEMS SOUTHWEST INC | Business | 122000969 | DOLTON | NOT RENEWED | Verify |
| ATG LEGALSERVE INC | Business | 118000339 | CHICAGO | NOT RENEWED | Verify |
| ATG LEGALSERVE INC | Business | 118000301 | CHAMPAIGN | NOT RENEWED | Verify |
| ATG LEGALSERVE INC | Business | 118000292 | SWANSEA | NOT RENEWED | Verify |
| ATG LEGALSERVE INC | Business | 117001494 | CHICAGO | CLOSED | Verify |
| ATG LEGALSERVE INC | Business | 118000323 | CHICAGO | INACTIVE | Verify |
| ATKINSON & HAWORTH INC | Business | 102000210 | CHICAGO | ACTIVE | Verify |
| ATKINSON ELECTRIC INC | Business | 127000465 | SPRINGFIELD | NOT RENEWED | Verify |
| ATKINSON ELECTRIC SERVICE | Business | 127000456 | SPRINGFIELD | NOT RENEWED | Verify |
| ATLAS ALARM CO INC | Business | 127000809 | BELLEVILLE | NOT RENEWED | Verify |
| ATLAS GUARD SERVICE | Business | 201000155 | ROCKFORD | ACTIVE | Verify |
| ATLAS GUARD SERVICE | Business | 201000220 | CHICAGO | ACTIVE | Verify |
| ATLAS GUARD SERVICE | Business | 201000074 | CHICAGO | CLOSED | Verify |
| ATLAS GUARD SERVICE INC | Business | 127000365 | CHICAGO | NOT RENEWED | Verify |
| ATLAS LOCK & ALARM | Business | 127000592 | DECATUR | INOPERATIVE | Verify |
| ATLAS LOCK & KEY INC | Business | 192000153 | ARLINGTON HEIGHTS | NOT RENEWED | Verify |
| ATLAS LOCK INC | Business | 192000169 | DECATUR | ACTIVE | Verify |
| ATLAS-MARTIN FIRE EXTINGUISHER CO., INC. | Business | 127001020 | GURNEE | INOPERATIVE | Verify |
| ATS ALARM SYSTEMS | Business | 127000687 | AURORA | INOPERATIVE | Verify |
| ATTORNEYS INFORMATION SERVICES INC | Business | 117000218 | CHICAGO | NOT RENEWED | Verify |
| AUDIO ENGINEERING INC | Business | 127000299 | LOVES PARK | ACTIVE | Verify |
| AUGUST PROTECTIVE SERVICES PLLC | Business | 122001577 | LYNWOOD | INOPERATIVE | Verify |
| AUGUST PROTECTIVE SERVICES PLLC | Business | 117001891 | LYNWOOD | ACTIVE | Verify |
| AUGUSTUS COMMERCIAL LLC | Business | 117001751 | OAKBROOK TERRACE | NOT RENEWED | Verify |
| AUGUSTUS COMMERCIAL LLC | Business | 122001384 | OAKBROOK TERRACE | NOT RENEWED | Verify |
| AUGUSTUS GLOBAL LLC | Business | 122001439 | HARWOOD HEIGHTS | NOT RENEWED | Verify |
| AUGUSTUS GLOBAL LLC | Business | 117001788 | HARWOOD HEIGHTS | NOT RENEWED | Verify |
| AUGUSTUS INTEGRATED GUARDING SOLUTIONS LLC | Business | 122001507 | DOWNERS GROVE | NOT RENEWED | Verify |
| AURORA SAFETY | Business | 102000375 | SUGAR GROVE | ACTIVE | Verify |
| AUTO-MATIC PRODUCTS COMPANY | Business | 127000158 | CHICAGO | INOPERATIVE | Verify |
| AUTOMATIC FIRE CONTROLS INC | Business | 128000138 | SCHAUMBURG | NOT RENEWED | Verify |
| AUTOMATIC FIRE CONTROLS INC | Business | 127000452 | MOKENA | ACTIVE | Verify |
| AUTOMATION CONTROL INTEGRATORS INC | Business | 127001127 | MCHENRY | NOT RENEWED | Verify |
| AUTOMOBILE RECOVERY BUREAU INC | Business | 117000143 | CHICAGO | NOT RENEWED | Verify |
| AUTOMOTIVE TECHNICAL | Business | 102000105 | CHICAGO | ACTIVE | Verify |
| AVANTGARDE LOOP SECURITY SERVICES INC | Business | 127000309 | CHICAGO | NOT RENEWED | Verify |