| PROFESSIONAL CAREER CENTER | Business | 102000096 | LOMBARD | ACTIVE | Verify |
| PROFESSIONAL CAREER CENTER | Business | 102000094 | CHICAGO | ACTIVE | Verify |
| PROFESSIONAL FIREARM TRAINING INSTITUTE LTD | Business | 102000208 | CHICAGO | ACTIVE | Verify |
| PROFESSIONAL INVESTIGATING & CONSULTING AGENCY INC | Business | 122001240 | CHICAGO | NOT RENEWED | Verify |
| PROFESSIONAL INVESTIGATION & PROCESS SERV INC | Business | 117001477 | ROCKTON | NOT RENEWED | Verify |
| PROFESSIONAL INVESTIGATION & PROTECTION INC | Business | 117001640 | FREEPORT | ACTIVE | Verify |
| PROFESSIONAL INVESTIGATIONS | Business | 118000242 | CHICAGO | INOPERATIVE | Verify |
| PROFESSIONAL INVESTIGATIONS | Business | 117000082 | CHICAGO | NOT RENEWED | Verify |
| PROFESSIONAL INVESTIGATIONS & SERVICES INC | Business | 117001374 | ROSCOE | NOT RENEWED | Verify |
| PROFESSIONAL INVESTIGATIONS AND SERVICES | Business | 117001326 | ROCKTON | NOT RENEWED | Verify |
| PROFESSIONAL INVESTIGATIONS INC | Business | 122000313 | SPRINGFIELD | NOT RENEWED | Verify |
| PROFESSIONAL INVESTIGATIONS INC | Business | 117000387 | SPRINGFIELD | CANCELLED | Verify |
| PROFESSIONAL INVESTIGATIONS INC | Business | 118000107 | SHERMAN | NOT RENEWED | Verify |
| PROFESSIONAL INVESTIGATIVE SERVICES INC | Business | 117000541 | LOMBARD | NOT RENEWED | Verify |
| PROFESSIONAL LAW ENFORCEMENT INSTITUTE | Business | 201000226 | BELLEVILLE | ACTIVE | Verify |
| PROFESSIONAL LAW ENFORCEMENT INSTITUTE | Business | 102000007 | BELLEVILLE | ACTIVE | Verify |
| PROFESSIONAL PRIDE SECURITY LLC | Business | 122001035 | SOUTH HOLLAND | NOT RENEWED | Verify |
| PROFESSIONAL PROTECTION SERVICES INC | Business | 117001113 | ARLINGTON HEIGHTS | NOT RENEWED | Verify |
| PROFESSIONAL PROTECTION SERVICES INC | Business | 122000730 | ARLINGTON HEIGHTS | NOT RENEWED | Verify |
| PROFESSIONAL PROTECTION SERVICES, INC | Business | 102000222 | MC HENRY | ACTIVE | Verify |
| PROFESSIONAL PROTECTION SPECIALIST LLC | Business | 122000779 | SOUTH HOLLAND | INOPERATIVE | Verify |
| PROFESSIONAL PROTECTION SPECIALISTS INC | Business | 102000295 | WESTCHESTER | ACTIVE | Verify |
| PROFESSIONAL PROTECTION SPECIALISTS INC | Business | 122001136 | WESTCHESTER | ACTIVE | Verify |
| PROFESSIONAL PROTECTIVE SERVICES INC | Business | 122000338 | ARLINGTON HEIGHTS | NOT RENEWED | Verify |
| PROFESSIONAL PROTECTIVE SERVICES INC | Business | 117000253 | ARLINGTON HEIGHTS | NOT RENEWED | Verify |
| PROFESSIONAL SAFEGUARDS INC | Business | 117000316 | CHICAGO | CANCELLED | Verify |
| PROFESSIONAL SAFEGUARDS INC | Business | 122000156 | CHICAGO | CANCELLED | Verify |
| PROFESSIONAL SECURITY ASSOCIATES INC | Business | 122000109 | WOOD DALE | NOT RENEWED | Verify |
| PROFESSIONAL SECURITY COMPANY | Business | 122000517 | BELLEVILLE | ACTIVE | Verify |
| PROFESSIONAL SECURITY CONSULTANTS INC | Business | 123000276 | VERNON HILLS | ACTIVE | Verify |
| PROFESSIONAL SECURITY CONSULTANTS INC | Business | 123000396 | SKOKIE | ACTIVE | Verify |
| PROFESSIONAL SECURITY CONSULTANTS INC | Business | 123000397 | JOLIET | NOT RENEWED | Verify |
| PROFESSIONAL SECURITY CONSULTANTS INC | Business | 123000394 | LOMBARD | ACTIVE | Verify |
| PROFESSIONAL SECURITY CONSULTANTS INC | Business | 123000274 | JOLIET | ACTIVE | Verify |
| PROFESSIONAL SECURITY CONSULTANTS INC | Business | 123000404 | BLOOMINGDALE | NOT RENEWED | Verify |
| PROFESSIONAL SECURITY CONSULTANTS INC | Business | 123000445 | SOUTH BARRINGTON | ACTIVE | Verify |
| PROFESSIONAL SECURITY CONSULTANTS INC | Business | 123000275 | SKOKIE | NOT RENEWED | Verify |
| PROFESSIONAL SECURITY CONSULTANTS INC | Business | 123000296 | CHICAGO RIDGE | ACTIVE | Verify |
| PROFESSIONAL SECURITY CONSULTANTS INC | Business | 123000484 | AURORA | ACTIVE | Verify |
| PROFESSIONAL SECURITY CONSULTANTS INC | Business | 123000395 | CHICAGO | NOT RENEWED | Verify |
| PROFESSIONAL SECURITY CONSULTANTS INC | Business | 122000956 | AURORA | ACTIVE | Verify |
| PROFESSIONAL SECURITY CONSULTANTS INC | Business | 123000398 | BURR RIDGE | NOT RENEWED | Verify |
| PROFESSIONAL SECURITY CONSULTANTS INC | Business | 123000446 | CHICAGO RIDGE | NOT RENEWED | Verify |
| PROFESSIONAL SECURITY CONSULTANTS INC | Business | 123000449 | BOLINGBROOK | ACTIVE | Verify |
| PROFESSIONAL SECURITY CONSULTANTS INC | Business | 127000400 | CHAMPAIGN | INOPERATIVE | Verify |
| PROFESSIONAL SECURITY GUARD AGENCY | Business | 122000591 | TINLEY PARK | CANCELLED | Verify |
| PROFESSIONAL SECURITY HARDWARE INC | Business | 192000217 | EVANSTON | NOT RENEWED | Verify |
| PROFESSIONAL SECURITY INC | Business | 127000953 | NEW LENOX | INOPERATIVE | Verify |
| PROFESSIONAL SECURITY INSTITUTE | Business | 102000092 | CHICAGO HEIGHTS | ACTIVE | Verify |
| PROFESSIONAL SECURITY SERVICES INC | Business | 122001300 | PALOS HEIGHTS | NOT RENEWED | Verify |