| INTERCON SECURITY LIMITED | Business | 127000852 | OAK BROOK | NOT RENEWED | Verify |
| INTERCON SECURITY LTD | Business | 122000684 | OAK BROOK | INOPERATIVE | Verify |
| INTERCON SECURITY LTD | Business | 117000849 | OAK BROOK | NOT RENEWED | Verify |
| INTERCON SECURITY MD INC | Business | 122000893 | OAK BROOK | INOPERATIVE | Verify |
| INTERCON SECURITY SMG INC | Business | 122000584 | OAK BROOK | NOT RENEWED | Verify |
| INTERCONTINENTAL INVESTIGATIONS | Business | 122000239 | NEW HOLLAND | NOT RENEWED | Verify |
| INTERCONTINENTAL INVESTIGATIONS | Business | 117000300 | NEW HOLLAND | NOT RENEWED | Verify |
| INTERCONTINENTAL SECURITY SERVICES INC | Business | 122001074 | CHICAGO | NOT RENEWED | Verify |
| INTERCONTINENTAL SECURITY SERVICES INC | Business | 117001349 | CHICAGO | NOT RENEWED | Verify |
| INTERCOR | Business | 117001156 | LA GRANGE PARK | NOT RENEWED | Verify |
| INTERFACE SECURITY SYSTEMS LLC | Business | 122000776 | PEORIA | NOT RENEWED | Verify |
| INTERFACE SECURITY SYSTEMSLLC | Business | 128000192 | SWANSEA | CLOSED | Verify |
| INTERFACTS INCORPORATED | Business | 117001471 | ANTIOCH | ACTIVE | Verify |
| INTERNAL SURVEILLANCE & SECURITY INC | Business | 122000302 | CHICAGO | NOT RENEWED | Verify |
| INTERNAL SURVEILLANCE & SECURITY INC | Business | 122000302 | CHICAGO | NOT RENEWED | Verify |
| INTERNATIONAL BUSINESS ADVANTAGE | Business | 127001174 | CHICAGO | INOPERATIVE | Verify |
| INTERNATIONAL CORPORATE INVESTIGATIONS | Business | 117000746 | WHEATON | NOT RENEWED | Verify |
| INTERNATIONAL DETECTIVES & INVESTIGATORS | Business | 201000066 | CHICAGO | ACTIVE | Verify |
| INTERNATIONAL DETECTIVES & PROTECTIVE SERVICE | Business | 117000030 | CHICAGO | NOT RENEWED | Verify |
| INTERNATIONAL DETECTIVES & PROTECTIVE SERVICE | Business | 118000035 | CHICAGO HEIGHTS | NOT RENEWED | Verify |
| INTERNATIONAL DETECTIVES & PROTECTIVE SERVICE | Business | 123000223 | MARSEILLES | NOT RENEWED | Verify |
| INTERNATIONAL DETECTIVES & PROTECTIVE SERVICE | Business | 122000028 | CHICAGO | NOT RENEWED | Verify |
| INTERNATIONAL DETECTIVES & PROTECTIVE SERVICE | Business | 123000070 | CHICAGO HEIGHTS | NOT RENEWED | Verify |
| INTERNATIONAL FIRE EQUIPMENT CORP | Business | 127000506 | LAKE ZURICH | ACTIVE | Verify |
| INTERNATIONAL INTELLIGENCE INC | Business | 117000633 | NORTHBROOK | NOT RENEWED | Verify |
| INTERNATIONAL INVESTIGATIVE SERVICES INC | Business | 117001357 | CHICAGO | NOT RENEWED | Verify |
| INTERNATIONAL MANAGEMENT ASSISTANCE CORP | Business | 117000651 | CENTRALIA | NOT RENEWED | Verify |
| INTERNATIONAL PROACTIVE SECURITY LLC | Business | 122001298 | CHICAGO | NOT RENEWED | Verify |
| INTERNATIONAL PROTECTION & INVESTIGATION CORP | Business | 117001580 | CHICAGO | NOT RENEWED | Verify |
| INTERNATIONAL PROTECTION SERVICES | Business | 102000269 | CHICAGO | ACTIVE | Verify |
| INTERNATIONAL PROTECTION SERVICES INC | Business | 122000952 | CHICAGO | NOT RENEWED | Verify |
| INTERNATIONAL PROTECTION SERVICES INC | Business | 122000952 | CHICAGO | NOT RENEWED | Verify |
| INTERNATIONAL PROTECTIVE SERVICES INC | Business | 122001162 | CHICAGO | ACTIVE | Verify |
| INTERNATIONAL S/P | Business | 192000213 | GLENCOE | ACTIVE | Verify |
| INTERNATIONAL SCENT SOLUTIONS LLC | Business | 122001270 | BENSENVILLE | ACTIVE | Verify |
| INTERNATIONAL SCENT SOLUTIONS LLC | Business | 264000001 | BENSENVILLE | ACTIVE | Verify |
| INTERNATIONAL SCENT SOLUTIONS LLC | Business | 265000001 | BENSENVILLE | ACTIVE | Verify |
| INTERNATIONAL SECURITY CONCEPTS/ISC | Business | 117000875 | CHICAGO | NOT RENEWED | Verify |
| INTERNATIONAL SECURITY INSTITUTE, INC. | Business | 102000219 | HILLSIDE | ACTIVE | Verify |
| INTERNATIONAL SECURITY LTD | Business | 117000245 | CHICAGO | CANCELLED | Verify |
| INTERNATIONAL SERVICE ASSOCIATES INC | Business | 123000142 | CHICAGO | INOPERATIVE | Verify |
| INTERNATIONAL SERVICE ASSOCIATES INC | Business | 122000577 | CHICAGO | NOT RENEWED | Verify |
| INTERNATIONAL SERVICE ASSOCIATES INC | Business | 122000577 | CHICAGO | NOT RENEWED | Verify |
| INTERNATIONAL TOTAL SERVICES INC | Business | 123000121 | MOLINE | NOT RENEWED | Verify |
| INTERNATIONAL TOTAL SERVICES INC | Business | 123000111 | DECATUR | NOT RENEWED | Verify |
| INTERNATIONAL TOTAL SERVICES INC | Business | 122000354 | CHICAGO | NOT RENEWED | Verify |
| INTERNATIONAL TOTAL SERVICES INC | Business | 123000117 | CHICAGO | NOT RENEWED | Verify |
| INTERNATIONAL TOTAL SERVICES INC | Business | 123000118 | PEORIA | NOT RENEWED | Verify |
| INTERNATIONAL TOTAL SERVICES INC | Business | 123000119 | CHICAGO | NOT RENEWED | Verify |
| INTERNATIONAL TOTAL SERVICES INC | Business | 123000108 | MATTOON | NOT RENEWED | Verify |