| Entity Name | Type | License # | City | Status | Action |
|---|---|---|---|---|---|
| CENTURION SECURITY INC | Business | 117000368 | CHICAGO | CANCELLED | Verify |
| CENTURION TRAINING INSTITUTE | Business | 102000176 | FLOSSMOOR | ACTIVE | Verify |
| CENTURY ELECTRIC & SECURITY CONTRACTORS INC | Business | 127001205 | MONTGOMERY | NOT RENEWED | Verify |
| CEQUR SECURITY LLC | Business | 117001243 | CHICAGO | NOT RENEWED | Verify |
| CEQUR SECURITY LLC | Business | 122000921 | CHICAGO | NOT RENEWED | Verify |
| CERRO COPPER PRODUCTS CO | Business | 120500091 | SAUGET | NOT RENEWED | Verify |
| CERTIFIED RESEARCH COMPANY INC | Business | 122001253 | LIBERTYVILLE | NOT RENEWED | Verify |
| CERTIFIED SECURITY & | Business | 127000798 | SCHAUMBURG | CANCELLED | Verify |
| CERTIFIED SECURITY SYSTEMS INC | Business | 117000974 | RIVER GROVE | NOT RENEWED | Verify |
| CERTIFIED SECURITY SYSTEMS INC | Business | 122000759 | RIVER GROVE | NOT RENEWED | Verify |
| CERTIFIED SECURITY SYSTEMS INC | Business | 127001005 | RIVER GROVE | NOT RENEWED | Verify |
| CFE SAFETY AND SECURITY TRAINING, PLLC | Business | 122001696 | OAK LAWN | ACTIVE | Verify |
| CHAMBERS SECURITY INSTITUTE | Business | 201000219 | WAUKEGAN | ACTIVE | Verify |
| CHAMSON GROUP LLC | Business | 122001242 | COLLINSVILLE | NOT RENEWED | Verify |
| CHANDLER PROTECTION SERVICE INC | Business | 122000383 | WAUKEGAN | NOT RENEWED | Verify |
| CHAPMAN RESIDENTIAL SECURITY INC | Business | 127000762 | HAZEL CREST | ACTIVE | Verify |
| CHARLES H BUDDE AND ASSOCIATES INC | Business | 117000438 | GENEVA | NOT RENEWED | Verify |
| CHARLES H BUDDE AND ASSOCIATES INC | Business | 122000382 | GENEVA | NOT RENEWED | Verify |
| CHARLIE BROY DETECTIVE AGENCY | Business | 117001039 | BENTON | NOT RENEWED | Verify |
| CHARTER RESEARCH GROUP LTD | Business | 117001059 | STREAMWOOD | NOT RENEWED | Verify |
| CHAS HOLLENBACH INC | Business | 120100018 | CHICAGO | CANCELLED | Verify |
| CHATFIELD ELECTRIC INC | Business | 127000333 | NORTHBROOK | NOT RENEWED | Verify |
| CHEAP KEYS LOCKSMITH LLC | Business | 193000027 | ALSIP | ACTIVE | Verify |
| CHEAP KEYS LOCKSMITH LLC | Business | 192000293 | ALSIP | ACTIVE | Verify |
| CHEXX SYSTEMS INC | Business | 127001813 | YORKVILLE | ACTIVE | Verify |
| CHI STAR SECURITY SYSTEMS INC | Business | 122000840 | CHICAGO | NOT RENEWED | Verify |
| CHI STAR SECURITY SYSTEMS INC | Business | 117001110 | CHICAGO | NOT RENEWED | Verify |
| CHIAPPETTA & ASSOCS LTD | Business | 117000922 | CHICAGO | NOT RENEWED | Verify |
| CHICAGO 1 INVESTIGATIONS | Business | 117000745 | OAK FOREST | NOT RENEWED | Verify |
| CHICAGO ALARMS INC | Business | 127001165 | WEST DUNDEE | NOT RENEWED | Verify |
| CHICAGO AREA SECURITY SERVICES INC | Business | 128000186 | SPRINGFIELD | NOT RENEWED | Verify |
| CHICAGO AREA SECURITY SERVICES INC | Business | 127001032 | CAROL STREAM | NOT RENEWED | Verify |
| CHICAGO BAKING COMPANY | Business | 120100051 | CHICAGO | NOT RENEWED | Verify |
| CHICAGO BUILDING SERVICES INC | Business | 192000327 | CHICAGO | ACTIVE | Verify |
| CHICAGO BURGLAR ALARM COMPANY INC | Business | 127000194 | STREAMWOOD | NOT RENEWED | Verify |
| CHICAGO CITY WIDE COLLEGE | Business | 201000192 | CHICAGO | ACTIVE | Verify |
| CHICAGO CITY WIDE COLLEGE | Business | 102000023 | CHICAGO | ACTIVE | Verify |
| CHICAGO COMMUNICATION SYSTEMS INC | Business | 127000805 | ADDISON | ACTIVE | Verify |
| CHICAGO DISTRICT TRAINING ACADEMY | Business | 201000036 | CHICAGO | ACTIVE | Verify |
| CHICAGO EDUCATIONAL INC | Business | 102000155 | CHICAGO | ACTIVE | Verify |
| CHICAGO EXPRESS PROCESS SERVICE INC | Business | 117000702 | CHICAGO | NOT RENEWED | Verify |
| CHICAGO FIRE AND BURGLAR DETECTION INC | Business | 127000297 | GLEN ELLYN | ACTIVE | Verify |
| CHICAGO FIRE DETECTION SYSTEMS LLC | Business | 127001467 | ORLAND PARK | ACTIVE | Verify |
| CHICAGO HOUSING AUTHORITY | Business | 120100061 | CHICAGO | NOT RENEWED | Verify |
| CHICAGO INTEL AGENCY LTD | Business | 117001737 | JOLIET | ACTIVE | Verify |
| CHICAGO INTELLIGENCE SERVICES LTD | Business | 117001526 | CHICAGO | ACTIVE | Verify |
| CHICAGO INTELLIGENCE SERVICES LTD | Business | 118000316 | GRANITE CITY | NOT RENEWED | Verify |
| CHICAGO LAW ENFORCEMENT SCHOOL | Business | 201000135 | CHICAGO | INOPERATIVE | Verify |
| CHICAGO LAW ENFORCEMENT SCHOOL | Business | 201000173 | CHICAGO | INOPERATIVE | Verify |
| CHICAGO LOSS PREVENTION GROUP LTD | Business | 117000609 | PARK RIDGE | NOT RENEWED | Verify |