| Entity Name | Type | License # | City | Status | Action |
|---|---|---|---|---|---|
| DELANEY ELECTRIC COMPANY | Business | 127000169 | CAROL STREAM | NOT RENEWED | Verify |
| DELKO SECURITY & INVESTIGATIONS INC | Business | 122000581 | CHICAGO | NOT RENEWED | Verify |
| DELKO SECURITY AND INVESTIGATIONS INC | Business | 117000688 | CHICAGO | NOT RENEWED | Verify |
| DELORTO MAZZOLA & ASSOC LTD | Business | 117000828 | WEST CHICAGO | ACTIVE | Verify |
| DELTA FORCE ONE INVESTIGATIONS LLC | Business | 122001316 | CHICAGO | ACTIVE | Verify |
| DELTA FORCE ONE INVESTIGATIONS LLC | Business | 117001448 | CHICAGO | ACTIVE | Verify |
| DELTA INVESTIGATIONS, INC | Business | 117000874 | WHEATON | NOT RENEWED | Verify |
| DELTA PROTECTION SERVICES LLC | Business | 122000940 | OAK LAWN | NOT RENEWED | Verify |
| DELTA SECURITY INC | Business | 127000367 | CHICAGO | NOT RENEWED | Verify |
| DELTA SECURITY INC | Business | 122000321 | CHICAGO | NOT RENEWED | Verify |
| DELTA SECURITY INC | Business | 117000146 | CHICAGO | INACTIVE | Verify |
| DELTA SYSTEMS | Business | 127000015 | GRANITE CITY | NOT RENEWED | Verify |
| DELTA SYSTEMS | Business | 122000070 | GRANITE CITY | NOT RENEWED | Verify |
| DELTA SYSTEMS | Business | 122000070 | GRANITE CITY | NOT RENEWED | Verify |
| DELTA SYSTEMS | Business | 102000020 | GRANITE CITY | ACTIVE | Verify |
| DELTA SYSTEMS | Business | 117000299 | GRANITE CITY | NOT RENEWED | Verify |
| DEMBOWSKI INVESTIGATIONS | Business | 117001433 | FLANAGAN | NOT RENEWED | Verify |
| DEMPSEY INVESTIGATIONS INC | Business | 117001155 | SPRINGFIELD | NOT RENEWED | Verify |
| DENNIS & SALP CONSULTANTS INC | Business | 117001079 | CHICAGO | NOT RENEWED | Verify |
| DENNIS SECURITY & INVESTIGATION INC | Business | 122000393 | BOLINGBROOK | NOT RENEWED | Verify |
| DENNIS SECURITY & INVESTIGATIONS INC | Business | 118000108 | ORLAND PARK | CANCELLED | Verify |
| DENNIS SECURITY & INVESTIGATIONS INC | Business | 117000421 | BOLINGBROOK | NOT RENEWED | Verify |
| DEPARTMENT OF CORRECTIONS | Business | 201000812 | SPRINGFIELD | ACTIVE | Verify |
| DEPENDABLE LOCKS INC | Business | 192000245 | CHICAGO | NOT RENEWED | Verify |
| DEPENDABLE SECURITY SERVICE INC | Business | 117000233 | OAK PARK | INOPERATIVE | Verify |
| DEPENDABLE SECURITY SERVICE INC | Business | 122000222 | OAK PARK | INOPERATIVE | Verify |
| DEPENDABLE SECURITY SERVICES INC | Business | 122001150 | BLOOMINGDALE | NOT RENEWED | Verify |
| DEREN RANDALL D | Business | 102000172 | CHICAGO | ACTIVE | Verify |
| DES TECHNOLOGY LLC | Business | 127001288 | CHICAGO | NOT RENEWED | Verify |
| DESNOYERS AND ASSOCIATES INC | Business | 117000138 | LONG GROVE | INOPERATIVE | Verify |
| DESNOYERS AND ASSOCIATES INC | Business | 122000175 | LONG GROVE | INOPERATIVE | Verify |
| DETAIL SECURITY AND INVESTIGATIONS | Business | 122000082 | ST CHARLES | NOT RENEWED | Verify |
| DETAIL SECURITY AND INVESTIGATIONS | Business | 127000017 | ST CHARLES | NOT RENEWED | Verify |
| DETAIL SECURITY AND INVESTIGATIONS | Business | 117000097 | ST CHARLES | NOT RENEWED | Verify |
| DETECT SYSTEM INC | Business | 117000848 | PHILO | ACTIVE | Verify |
| DETECTION ALARM SYSTEMS INC | Business | 127000745 | GLEN CARBON | INOPERATIVE | Verify |
| DETECTION SECURITY COMPANY INC | Business | 127000085 | MATTOON | ACTIVE | Verify |
| DETECTION SYSTEMS AND SERVICE INC | Business | 127000419 | DOWNERS GROVE | ACTIVE | Verify |
| DETECTION SYSTEMS AND SERVICE INC | Business | 128000021 | CHICAGO | NOT RENEWED | Verify |
| DETECTIVES & INVESTIGATORS | Business | 117001254 | HOMER GLEN | INOPERATIVE | Verify |
| DETROIT ARMOR CORP | Business | 102000077 | SCHAUMBURG | ACTIVE | Verify |
| DEVELOPMENTAL RESEARCH CONSULTANTS INC | Business | 117000624 | PEORIA | NOT RENEWED | Verify |
| DEVON BANK | Business | 120500076 | CHICAGO | NOT RENEWED | Verify |
| DEW SECURITY INC | Business | 122000615 | CHICAGO | NOT RENEWED | Verify |
| DEW SECURITY INC | Business | 123000138 | CHICAGO | NOT RENEWED | Verify |
| DEXTER LOCK SERVICE INC | Business | 192000129 | CHICAGO | ACTIVE | Verify |
| DHE INC | Business | 117001026 | MATTESON | NOT RENEWED | Verify |
| DHE INC | Business | 122000791 | MATTESON | INOPERATIVE | Verify |
| DHS SECURITY LLC | Business | 122001110 | SUGAR GROVE | TERMINATED WITHOUT CARD | Verify |
| DHS SECURITY LLC | Business | 117001476 | SUGAR GROVE | TERMINATED WITHOUT CARD | Verify |