| Entity Name | Type | License # | City | Status | Action |
|---|---|---|---|---|---|
| TECH ELECTRONICS OF ILLINOIS LLC | Business | 128000251 | ELK GROVE VILLAGE | NOT RENEWED | Verify |
| TECH ELECTRONICS OF ILLINOIS LLC | Business | 127001530 | BLOOMINGTON | NOT RENEWED | Verify |
| TECH FOUR SYSTEMS | Business | 127001250 | DES PLAINES | ACTIVE | Verify |
| TECH SYSTEMS INC | Business | 127000462 | GURNEE | ACTIVE | Verify |
| TECHNICAL INVESTIGATION AND COMPUTER SEC | Business | 122000076 | NAPERVILLE | INOPERATIVE | Verify |
| TECHNOSTRUCTURE INCORPORATED | Business | 127001314 | NAPERVILLE | INOPERATIVE | Verify |
| TECK TRON INC | Business | 127000880 | MOKENA | NOT RENEWED | Verify |
| TED ANTHONY & ASSOCIATES LIMITED | Business | 117000179 | ORLAND PARK | NOT RENEWED | Verify |
| TED ANTHONY & ASSOCIATES LIMITED | Business | 118000050 | ORLAND PARK | CANCELLED | Verify |
| TED ANTHONY AND ASSOCIATES LIMITED | Business | 122000324 | SUMMIT | NOT RENEWED | Verify |
| TEDSCO SECURITY OFFICER ACADEMY | Business | 102000133 | TINLEY PARK | ACTIVE | Verify |
| TEK ELECTRONICS SYSTEMS INC | Business | 127000493 | CHICAGO | CANCELLED | Verify |
| TEL-STAR SECURITY INC | Business | 127000440 | CHICAGO | INOPERATIVE | Verify |
| TELE-TECTOR LTD | Business | 127000843 | GENEVA | NOT RENEWED | Verify |
| TELECOMMUNICATIONS MANAGEMENT LLC | Business | 127001512 | TAYLORVILLE | NOT RENEWED | Verify |
| TELELARM CORPORATION | Business | 127000254 | GLEN ELLYN | CANCELLED | Verify |
| TELTRONIC SYSTEMS INC | Business | 127000767 | ROUND LAKE HEIGHTS | ACTIVE | Verify |
| TEMPLE SECURITY INC | Business | 122000242 | CHICAGO | NOT RENEWED | Verify |
| TEMPLE SECURITY INC | Business | 127000294 | CHICAGO | NOT RENEWED | Verify |
| TEMPLE SECURITY INC | Business | 117000340 | CHICAGO | NOT RENEWED | Verify |
| TENCO SERVICES INC | Business | 122000677 | WAUKEGAN | NOT RENEWED | Verify |
| TEPLITZ AND CO | Business | 117000703 | PEORIA | NOT RENEWED | Verify |
| TERRA SECURITY SYSTEMS INC | Business | 127001021 | PLAINFIELD | NOT RENEWED | Verify |
| TERRENCE KNOX PRODUCTIONS INC | Business | 102000012 | ORLAND PARK | ACTIVE | Verify |
| TERRENCE M NOBLE | Business | 127000855 | ROCKFORD | INOPERATIVE | Verify |
| TERRY LOWE DETECTIVE AGENCY | Business | 117001607 | SPRINGFIELD | NOT RENEWED | Verify |
| TEUFEL HUNDEN ELECTRONICS INC | Business | 127001687 | PEKIN | ACTIVE | Verify |
| TG-17 INC | Business | 122001638 | CHICAGO | ACTIVE | Verify |
| THE 555 GROUP, PLLC | Business | 102000420 | DES PLAINES | ACTIVE | Verify |
| THE 555 GROUP, PLLC | Business | 122001628 | DES PLAINES | ACTIVE | Verify |
| THE 555 GROUP, PLLC | Business | 117001955 | DES PLAINES | ACTIVE | Verify |
| THE ALARM GUYZ INCORPORATED | Business | 127001215 | SCHAUMBURG | ACTIVE | Verify |
| THE ALL INVESTIGATIONS GROUP, LLC | Business | 117001862 | GURNEE | ACTIVE | Verify |
| THE ALL INVESTIGATIONS GROUP, LLC | Business | 122001667 | GURNEE | ACTIVE | Verify |
| THE AMERICAN CITADEL GUARD INC | Business | 122001030 | AURORA | NOT RENEWED | Verify |
| THE APARTMENT CENTER | Business | 120100031 | CHICAGO | CANCELLED | Verify |
| THE ARGUS AGENCY INC | Business | 117000215 | PARK RIDGE | NOT RENEWED | Verify |
| THE ARGUS AGENCY INC | Business | 117000215 | PARK RIDGE | NOT RENEWED | Verify |
| THE ART INSTITUTE OF | Business | 201000187 | CHICAGO | ACTIVE | Verify |
| THE ATLANTIS GROUP WORLDWIDE INC | Business | 122001060 | CHICAGO | NOT RENEWED | Verify |
| THE ATLANTIS GROUP WORLDWIDE INC | Business | 117001393 | CHICAGO | NOT RENEWED | Verify |
| THE BAKER STREET DETECTIVE AGENCY | Business | 117000612 | CHICAGO | NOT RENEWED | Verify |
| THE BAKER STREET DETECTIVE AGENCY LTD | Business | 117000729 | CHICAGO | NOT RENEWED | Verify |
| THE BAKER STREET DETECTIVE AGENCY LTD | Business | 118000134 | CHICAGO | NOT RENEWED | Verify |
| THE BARCLAY GROUP DETECTIVE AGENCY INC | Business | 117000103 | PALATINE | CLOSED | Verify |
| THE BEST SMART HOME | Business | 127001902 | ARLINGTON HEIGHTS | ACTIVE | Verify |
| THE BOEING COMPANY | Business | 120500104 | CHICAGO | NOT RENEWED | Verify |
| THE BRAGG GROUP PLLC | Business | 117001907 | AURORA | ACTIVE | Verify |
| THE BRAGG GROUP PLLC | Business | 122001602 | AURORA | ACTIVE | Verify |
| THE CARGO SECURITY COMPANY INC | Business | 122001058 | CHICAGO | ACTIVE | Verify |