| Entity Name | Type | License # | City | Status | Action |
|---|---|---|---|---|---|
| DI SANTIS AND ASSOCIATES INC | Business | 122001417 | RIVERSIDE | ACTIVE | Verify |
| DIAMOND DETECTIVE AGCY INC | Business | 201000008 | HAZEL CREST | ACTIVE | Verify |
| DIAMOND DETECTIVE AGENCY INC | Business | 122000443 | CHICAGO HEIGHTS | NOT RENEWED | Verify |
| DIAMOND DETECTIVE AGENCY INC | Business | 127000596 | HAZEL CREST | NOT RENEWED | Verify |
| DIAMOND DETECTIVE AGENCY INC | Business | 117000506 | CHICAGO HEIGHTS | NOT RENEWED | Verify |
| DIAMOND DETECTIVE AGENCY INC | Business | 122000443 | CHICAGO HEIGHTS | NOT RENEWED | Verify |
| DIAMOND SECURITY SERVICE | Business | 122000004 | CHICAGO | NOT RENEWED | Verify |
| DIAMOND SECURITY SERVICE | Business | 117000009 | CHICAGO | NOT RENEWED | Verify |
| DICK YOUNG ELECTRIC COMPANY | Business | 127000221 | CHAMPAIGN | NOT RENEWED | Verify |
| DIEBOLD INCORPORATED | Business | 127000436 | SCHAUMBURG | NOT RENEWED | Verify |
| DIGBY'S DETECTIVE AND SECURITY AGENCY INC | Business | 117000319 | CHICAGO | ACTIVE | Verify |
| DIGBY'S DETECTIVE AND SECURITY AGENCY INC | Business | 122000220 | CHICAGO | ACTIVE | Verify |
| DIGBYS DETECTIVE & SECURITY AGENCY INC | Business | 102000192 | CHICAGO | ACTIVE | Verify |
| DIGBYS DETECTIVE & SECURITY AGENCY INC | Business | 127000183 | CHICAGO | INOPERATIVE | Verify |
| DIGBYS DETECTIVE AND SECURITY AGENCY INC | Business | 262000036 | CHICAGO | ACTIVE | Verify |
| DIGILARM SECURITY SYSTEMS INC | Business | 127000267 | ORLAND PARK | NOT RENEWED | Verify |
| DIGISTREAM INVESTIGATIONS INC | Business | 117001653 | LOMBARD | NOT RENEWED | Verify |
| DIGITAL DETECTION CORPORATION | Business | 127000937 | ELMHURST | NOT RENEWED | Verify |
| DIGITAL DIGGING INVESTIGATIONS, PLLC | Business | 117001878 | CHICAGO | ACTIVE | Verify |
| DIGITAL INTEGRATED SECURITY | Business | 127001268 | PLAINFIELD | NOT RENEWED | Verify |
| DIGITAL SYNERGY INC | Business | 262000060 | TUSCOLA | NOT RENEWED | Verify |
| DIGITEC SECURITY PARTNERS INC | Business | 127001068 | ELMWOOD PARK | NOT RENEWED | Verify |
| DIGITRON SECURITY SYSTEMS INC | Business | 127000340 | NEW LENOX | ACTIVE | Verify |
| DIGNITARY PROTECTIVE SERVICES INC | Business | 123000221 | CHICAGO | NOT RENEWED | Verify |
| DIGNITARY PROTECTIVE SERVICES INC | Business | 122000505 | CHICAGO | NOT RENEWED | Verify |
| DILIGENT DETECTIVE AGENCY LTD | Business | 117001126 | CLIFTON | ACTIVE | Verify |
| DILIGENT SECURITY & INVESTIGATIONS INC | Business | 117001559 | WESTMONT | NOT RENEWED | Verify |
| DIRECT SECURITY SERVICES OF ILLINOIS INC | Business | 128000189 | HANOVER PARK | CLOSED | Verify |
| DIRECT SECURITY SERVICES OF ILLINOIS INC | Business | 127001096 | HANOVER PARK | NOT RENEWED | Verify |
| DIRECTSAT USA LLC | Business | 127001627 | BOLINGBROOK | NOT RENEWED | Verify |
| DIRECTSAT USA, LLC | Business | 128000267 | ALGONQUIN | NOT RENEWED | Verify |
| DIRECTSAT USA, LLC | Business | 128000268 | ELK GROVE | NOT RENEWED | Verify |
| DIRECTSAT USA, LLC | Business | 128000266 | SOUTH HOLLAND | NOT RENEWED | Verify |
| DIRECTV LLC | Business | 127001629 | BELLEVILLE | NOT RENEWED | Verify |
| DISANTIS & ASSOCIATES INC | Business | 122000624 | CICERO | NOT RENEWED | Verify |
| DISC SECURITY ALARM SERVICES INC | Business | 128000153 | DES PLAINES | NOT RENEWED | Verify |
| DISC SECURITY ALARM SERVICES INC | Business | 127001642 | PLAINFIELD | NOT RENEWED | Verify |
| DISC SECURITY ALARM SERVICES INC | Business | 128000154 | NAPERVILLE | NOT RENEWED | Verify |
| DISC SECURITY ALARM SERVICES INC | Business | 128000168 | CHICAGO | NOT RENEWED | Verify |
| DISC SECURITY ALARM SERVICES INC | Business | 128000159 | POPLAR GROVE | NOT RENEWED | Verify |
| DISC SECURITY ALARM SERVICES INC | Business | 128000158 | ELMHURST | NOT RENEWED | Verify |
| DISC SECURITY ALARM SERVICES INC | Business | 128000173 | WINNETKA | NOT RENEWED | Verify |
| DISC SECURITY ALARM SERVICES INC | Business | 127001128 | PLAINFIELD | NOT RENEWED | Verify |
| DISH NETWORK SERVICE LLC | Business | 127001777 | MOKENA | ACTIVE | Verify |
| DISTRICT SECURITY SERVICE INC | Business | 122000002 | CHICAGO | NOT RENEWED | Verify |
| DIVANE BROS ELECTRICCO | Business | 127000628 | FRANKLIN PARK | NOT RENEWED | Verify |
| DIVERSCO INC | Business | 122001010 | MATTOON | NOT RENEWED | Verify |
| DIVERSIFIED LOCK & SECURITY CO, INC. | Business | 192000165 | CHICAGO | NOT RENEWED | Verify |
| DIVERSIFIED SECURITY AND INVESTIGATIONS PLLC | Business | 122001540 | BRIMFIELD | ACTIVE | Verify |
| DIVERSIFIED SECURITY AND INVESTIGATIONS PLLC | Business | 117001860 | BRIMFIELD | ACTIVE | Verify |