| Entity Name | Type | License # | City | Status | Action |
|---|---|---|---|---|---|
| DUNCAN'S DETECTION ALARMS | Business | 127000064 | MORTON | NOT RENEWED | Verify |
| DUNLAP SECURITY SERVICES INC | Business | 122001488 | CHICAGO | ACTIVE | Verify |
| DUPAGE COUNTY SHERIFF DEPT | Business | 201000821 | WHEATON | ACTIVE | Verify |
| DUPAGE ELECTRONIC SECURITY SYSTEMS INC | Business | 127000585 | GENEVA | NOT RENEWED | Verify |
| DUPAGE NATIONAL BANK | Business | 120500022 | WEST CHICAGO | NOT RENEWED | Verify |
| DUPAGE SECURITY SOLUTIONS INC | Business | 192000195 | ADDISON | ACTIVE | Verify |
| DURBIN INVESTIGATIONS | Business | 117001488 | ODIN | ACTIVE | Verify |
| DUTCH FARMS INC | Business | 120500154 | CHICAGO | ACTIVE | Verify |
| DYNAMARK HI TEC SECURITY SYSTEMS | Business | 127000512 | ROCKFORD | NOT RENEWED | Verify |
| DYNAMIC CONTROLS INC | Business | 127001377 | EAST PEORIA | ACTIVE | Verify |
| DYNAMIC CONTROLS INCORPORATED | Business | 127001238 | PEORIA | NOT RENEWED | Verify |
| DYNAMIC INQUIRES | Business | 117001628 | CHICAGO | ACTIVE | Verify |
| DYNAMIC INQUIRIES INC | Business | 122000336 | OAK FOREST | NOT RENEWED | Verify |
| DYNAMIC INQUIRIES INC | Business | 127000387 | OAK FOREST | NOT RENEWED | Verify |
| DYNAMIC INQUIRIES INC | Business | 117000238 | BLUE ISLAND | NOT RENEWED | Verify |
| DYNAMIC SAFETY LLC | Business | 118000215 | ST CHARLES | NOT RENEWED | Verify |
| DYNAMIC SAFETY LLC | Business | 117001223 | LAKE ZURICH | ACTIVE | Verify |
| DYNAMIC SECURITY INC | Business | 117000717 | GLEN ELLYN | NOT RENEWED | Verify |
| DYNAMIC SECURITY INC OF ILLINOIS | Business | 127001143 | PEORIA | INOPERATIVE | Verify |
| DYNAMIC SIA, INC | Business | 127001730 | TROY | ACTIVE | Verify |
| E & E PROTECTIVE SERVICE TRAINING | Business | 102000380 | SUMMIT | ACTIVE | Verify |
| E AND E SYSTEMS INC | Business | 127000711 | WAUCONDA | NOT RENEWED | Verify |
| E F RICE CO INC | Business | 117000901 | FOREST PARK | NOT RENEWED | Verify |
| E G SECURITY SERVICES INC | Business | 122001295 | CHICAGO | ACTIVE | Verify |
| E L JOHNSON INVESTIGATIONS | Business | 117000912 | GLENVIEW | ACTIVE | Verify |
| E NORMAN SECURITY SYSTEMS INC | Business | 127001076 | NAPERVILLE | ACTIVE | Verify |
| E P INTERNATIONAL INC | Business | 122000402 | CHICAGO | CANCELLED | Verify |
| E P S SECURITY INC | Business | 127000225 | BLOOMINGTON | NOT RENEWED | Verify |
| E R S SECURITY AND DETECTIVE AGCY INC | Business | 201000092 | HARVEY | ACTIVE | Verify |
| E R S SECURITY AND DETECTIVE AGENCY INC | Business | 127000142 | HARVEY | NOT RENEWED | Verify |
| E S INTERNATIONAL INC | Business | 122000284 | BIG ROCK | NOT RENEWED | Verify |
| E S INTERNATIONAL INC | Business | 117000237 | BIG ROCK | CANCELLED | Verify |
| E S P ALARMS | Business | 127000414 | CHICAGO | NOT RENEWED | Verify |
| E V ALLEN ASSOCS | Business | 201000094 | BELLWOOD | ACTIVE | Verify |
| E'CLAT SECURITY GROUP PLLC | Business | 123000482 | CHICAGO | ACTIVE | Verify |
| E'CLAT SECURITY GROUP PLLC | Business | 122001612 | CHICAGO | ACTIVE | Verify |
| E'CLAT SECURITY PLLC | Business | 122001547 | CHICAGO | NOT RENEWED | Verify |
| E2 BIOMETRICS | Business | 262000093 | CHICAGO | NOT RENEWED | Verify |
| EAGLE DETECTIVE AGENCY INC | Business | 117000669 | CHICAGO | INOPERATIVE | Verify |
| EAGLE DETECTIVE AGENCY INC | Business | 122000570 | CHICAGO | INOPERATIVE | Verify |
| EAGLE EYE SURVEILLANCE INC | Business | 127001267 | MONTICELLO | NOT RENEWED | Verify |
| EAGLE INVESTIGATIONS AND SECURITY INC | Business | 118000224 | CHICAGO | NOT RENEWED | Verify |
| EAGLE INVESTIGATIONS AND SECURITY INC | Business | 122000603 | OAK LAWN | NOT RENEWED | Verify |
| EAGLE INVESTIGATIONS AND SECURITY INC | Business | 123000277 | CHICAGO | NOT RENEWED | Verify |
| EAGLE INVESTIGATIONS AND SECURITY INC | Business | 123000278 | CHICAGO | NOT RENEWED | Verify |
| EAGLE INVESTIGATIONS AND SECURITY INC | Business | 123000358 | MOKENA | NOT RENEWED | Verify |
| EAGLE INVESTIGATIONS AND SECURITY INC | Business | 118000293 | MOKENA | NOT RENEWED | Verify |
| EAGLE INVESTIGATIONS AND SECURITY INC | Business | 117000805 | MOKENA | NOT RENEWED | Verify |
| EAGLE INVESTIGATIONS AND SECURITY INC | Business | 118000223 | CHICAGO | NOT RENEWED | Verify |
| EAGLE INVESTIGATIONSINC | Business | 117000443 | CHICAGO | NOT RENEWED | Verify |