| SECURITY SPECIALISTS GROUP INC | Business | 122001367 | CHICAGO | ACTIVE | Verify |
| SURVEILLANCE TECHNOLOGIES, LLC | Business | 127001747 | BARTONVILLE | ACTIVE | Verify |
| SHARK SECURITY SERVICES INC | Business | 122001373 | SOUTH HOLLAND | ACTIVE | Verify |
| ADVANCED DATA TECHNOLOGIES INC | Business | 127001753 | NAPERVILLE | ACTIVE | Verify |
| VSI INC | Business | 122001387 | CHICAGO | ACTIVE | Verify |
| KH SECURITY INC | Business | 122001388 | HILLSIDE | ACTIVE | Verify |
| ELECTRO SECURITY SYSTEMS INC | Business | 127001758 | TRENTON | ACTIVE | Verify |
| LOCKDOWN SECURITY LLC | Business | 122001390 | OAK LAWN | ACTIVE | Verify |
| COMMUNICATION ZONE INC | Business | 127001769 | SCHAUMBURG | NOT RENEWED | Verify |
| TRUE SECURITY & INVESTIGATION INC | Business | 122001402 | CHICAGO | ACTIVE | Verify |
| MONTEL TECHNOLOGIES, LLC | Business | 127001779 | CHICAGO | ACTIVE | Verify |
| PREMIER INTEL CORPORATION | Business | 122001403 | NAPERVILLE | NOT RENEWED | Verify |
| TAK BROADBAND, PLLC | Business | 127001805 | ELMHURST | ACTIVE | Verify |
| FULL ARMOR PROTECTION GROUP LLC | Business | 122001428 | BERWYN | ACTIVE | Verify |
| ZELLER ELECTRIC INC | Business | 127001824 | GOODFIELD | ACTIVE | Verify |
| BLUE LINE SECURITY SOLUTIONS LLC | Business | 122001441 | MOKENA | ACTIVE | Verify |
| ILLINOIS MOBILEHELP, PLLC | Business | 127001826 | DOWNERS GROVE | INOPERATIVE | Verify |
| CHICAGO SERVE LLC | Business | 122001446 | HOMER GLEN | INOPERATIVE | Verify |
| COX ALARM & TECH CO. | Business | 127001833 | LEBANON | ACTIVE | Verify |
| BRYCK SECURITY LLC | Business | 122001480 | DOWNERS GROVE | INACTIVE | Verify |
| RED STAR INSPECTIONS, INC. | Business | 127001839 | SCHAUMBURG | ACTIVE | Verify |
| MARKSMAN SECURITY CORPORATION | Business | 122001484 | CHICAGO | ACTIVE | Verify |
| BK ELECTRONICS, PLLC | Business | 127001840 | CHAMPAIGN | INOPERATIVE | Verify |
| AEROSHIELD INC | Business | 122001494 | SOUTH BARRINGTON | ACTIVE | Verify |
| KANSAS CITY CCTV PLLC | Business | 127001841 | CHICAGO | ACTIVE | Verify |
| ACTS AIRPORT SERVICES, INC. | Business | 122001506 | DES PLAINES | INACTIVE | Verify |
| AMPRO24 FIRE PROTECTION SERVICES, PLLC | Business | 127001856 | GROVELAND | ACTIVE | Verify |
| JONES PROTECTIVE AGENCY LLC | Business | 122001508 | FLOSSMOOR | NOT RENEWED | Verify |
| DS HOLDINGS GROUP PLLC | Business | 127001863 | ITASCA | ACTIVE | Verify |
| PALAMERICAN SECURITY INC | Business | 122001520 | OAK BROOK | ACTIVE | Verify |
| VBTRONICS INC. D/B/A PRO ALERT SYSTEMS | Business | 127001886 | ROLLING MEADOWS | ACTIVE | Verify |
| SSS INC. D/B/A SHEEPDOG SECURITY AND INVESTIGATIONS | Business | 122001525 | MONEE | NOT RENEWED | Verify |
| SAFE-GUARD SECURITY AND INVESTIGATION CORPORATION | Business | 122001527 | CHICAGO | NOT RENEWED | Verify |
| WINDSOR DEFENSE PLLC | Business | 127001895 | CHICAGO | ACTIVE | Verify |
| P4 PROTECTIVE SERVICES PLLC | Business | 122001528 | DOWNERS GROVE | ACTIVE | Verify |
| ENGINEERED PROTECTION SYSTEMS, INC. | Business | 127001900 | ZION | ACTIVE | Verify |
| KEY SYSTEMS, INC | Business | 127001901 | CAROL STREAM | ACTIVE | Verify |
| MFORT SECURITY SERVICES PLLC | Business | 122001549 | CHICAGO | ACTIVE | Verify |
| MORGAN SECURITY SERVICE INC | Business | 122001550 | CALUMET PARK | INOPERATIVE | Verify |
| GCI SECURITY INC | Business | 122001552 | BELLEVILLE | ACTIVE | Verify |
| DSS RS COMPANIES LLC D/B/A DIGITAL SECURITY SOLUTIONS PLLC | Business | 122001553 | COLONA | ACTIVE | Verify |
| PLATINUM PLUS SECURITY INC. | Business | 122001559 | MARKHAM | INOPERATIVE | Verify |
| AUGUST PROTECTIVE SERVICES PLLC | Business | 122001577 | LYNWOOD | INOPERATIVE | Verify |
| SOURCE ONE SOLUTIONS, INC. | Business | 122001587 | SOUTH HOLLAND | ACTIVE | Verify |
| WINDSOR DEFENSE PLLC | Business | 122001616 | CHICAGO | INOPERATIVE | Verify |
| WR SECURITY SERVICES INC | Business | 122001623 | CHICAGO | ACTIVE | Verify |
| HOWARD & ASSOCIATES, INC. | Business | 122001629 | CHICAGO HEIGHTS | ACTIVE | Verify |
| STEVE & SONS ENTERPRISES PLLC | Business | 122001630 | CHICAGO | ACTIVE | Verify |
| INFINITY SECURITY GROUP, PLLC | Business | 122001655 | FLOSSMOOR | INOPERATIVE | Verify |
| BEAR SECURITY GROUP, PLLC | Business | 122001666 | SKOKIE | ACTIVE | Verify |