| Entity Name | Type | License # | City | Status | Action |
|---|---|---|---|---|---|
| SOUTHWESTERN ILLINOIS COLLEGE | Business | 201000102 | BELLEVILLE | ACTIVE | Verify |
| SOUTHWESTERN ILLINOIS COLLEGE | Business | 201000814 | BELLEVILLE | ACTIVE | Verify |
| SOUTHWESTERN ILLINOIS COLLEGE | Business | 102000003 | BELLEVILLE | ACTIVE | Verify |
| SPANISH AMERICAN SECURITY INC | Business | 122000458 | CHICAGO | NOT RENEWED | Verify |
| SPARKMAN MARTIN & ASSOCIATES INC | Business | 122001244 | CHICAGO | NOT RENEWED | Verify |
| SPARROWHAWK E.S.C.O.R.T. CORP | Business | 122000762 | ONTARIOVILLE | NOT RENEWED | Verify |
| SPARTAN DETECTIVE AGCY | Business | 201000054 | URBANA | ACTIVE | Verify |
| SPARTAN DETECTIVE AGENCY INC | Business | 122000332 | URBANA | NOT RENEWED | Verify |
| SPARTAN DETECTIVE AGENCY INC | Business | 127000382 | URBANA | NOT RENEWED | Verify |
| SPARTAN DETECTIVE AGENCY INC | Business | 117000393 | URBANA | NOT RENEWED | Verify |
| SPEARS SECURITY CORPORATION | Business | 117000419 | CHICAGO | INOPERATIVE | Verify |
| SPEARS SECURITY CORPORATION | Business | 122000362 | CHICAGO | NOT RENEWED | Verify |
| SPEARS SECURITY CORPORATION | Business | 127000474 | CHICAGO | NOT RENEWED | Verify |
| SPECIAL ENFORCEMENT GROUP INC | Business | 122000980 | DES PLAINES | NOT RENEWED | Verify |
| SPECIAL FORCES SECURITY INC | Business | 122000328 | DOWNERS GROVE | NOT RENEWED | Verify |
| SPECIAL INVESTIGATION CORP | Business | 117000607 | MELROSE PARK | NOT RENEWED | Verify |
| SPECIAL INVESTIGATION GROUPS | Business | 117000518 | PAXTON | NOT RENEWED | Verify |
| SPECIAL INVESTIGATION SERVICE, INC | Business | 117001140 | BURNHAM | NOT RENEWED | Verify |
| SPECIAL INVESTIGATIONS AND SECURITY EXPERTS LLC | Business | 117001237 | CHICAGO | ACTIVE | Verify |
| SPECIAL INVESTIGATIONS CLAIM SERVICES INC | Business | 117000830 | NAPERVILLE | NOT RENEWED | Verify |
| SPECIAL INVESTIGATIONS LTD | Business | 117001418 | CHICAGO | NOT RENEWED | Verify |
| SPECIAL INVESTIGATIONS SERVICE INC | Business | 117000600 | CHICAGO | NOT RENEWED | Verify |
| SPECIAL INVESTIGATIONS SERVICE INC | Business | 117000944 | ARLINGTON HEIGHTS | INOPERATIVE | Verify |
| SPECIAL INVESTIGATIVE SERVICES LLC | Business | 117001419 | BUFFALO GROVE | NOT RENEWED | Verify |
| SPECIAL NEEDS SPECIALISTS INC | Business | 262000129 | BOURBONNAIS | NOT RENEWED | Verify |
| SPECIAL OPERATIONS AND PROTECTION AGENCY LLC | Business | 122001424 | RICHTON PARK | NOT RENEWED | Verify |
| SPECIAL PROCESS SERVICE INC | Business | 117001468 | SKOKIE | INOPERATIVE | Verify |
| SPECIAL PROTECTION & INTELLIGENCE LTD | Business | 120500101 | CHICAGO | NOT RENEWED | Verify |
| SPECIAL RESPONSE CORPORATION INC | Business | 123000224 | CHICAGO | ACTIVE | Verify |
| SPECIAL SECURITY SERVICES LLC | Business | 122001221 | CHICAGO | NOT RENEWED | Verify |
| SPECIAL SOLUTIONS INVESTIGATIVE AGENCY INC | Business | 117001236 | GURNEE | INOPERATIVE | Verify |
| SPECIAL SOLUTIONS LTD | Business | 117001169 | ARLINGTON HEIGHTS | ACTIVE | Verify |
| SPECIALIZED INVESTIGATIVE SERVICES LLC | Business | 117001437 | EDWARDSVILLE | NOT RENEWED | Verify |
| SPECIALTY ALARM ENGINEERING INC | Business | 127000770 | GLENVIEW | ACTIVE | Verify |
| SPECTRA TEK SYSTEMS INC | Business | 127000463 | MOUNT PROSPECT | NOT RENEWED | Verify |
| SPECTRE INC | Business | 118000133 | LANSING | NOT RENEWED | Verify |
| SPECTRE INC | Business | 117000739 | CHICAGO | NOT RENEWED | Verify |
| SPECTRE INC | Business | 118000150 | LANSING | NOT RENEWED | Verify |
| SPECTRE INC | Business | 118000132 | SCHILLER PARK | NOT RENEWED | Verify |
| SPECTRULITE CONSORTIUM INC | Business | 120100037 | MADISON | NOT RENEWED | Verify |
| SPEED WIRE INC | Business | 127001528 | ROLLING MEADOWS | NOT RENEWED | Verify |
| SPENCER BROTHERS INC | Business | 102000213 | ROCKFORD | ACTIVE | Verify |
| SPENCER BROTHERS INCORPORATED | Business | 122000682 | ROCKFORD | CLOSED | Verify |
| SPENCER INVESTIGATIONS | Business | 117000694 | SHERMAN | NOT RENEWED | Verify |
| SPENCER INVESTIGATIONS PLLC | Business | 117001859 | PEORIA | ACTIVE | Verify |
| SPENCER SECURITY LLC | Business | 122001634 | NAPERVILLE | ACTIVE | Verify |
| SPENCERS DETECTIVE AGENCY INC | Business | 117000505 | SHERMAN | NOT RENEWED | Verify |
| SPI OF ILLINOIS INC | Business | 122000729 | MORO | NOT RENEWED | Verify |
| SPI OF ILLINOIS INC | Business | 117000915 | MORO | NOT RENEWED | Verify |
| SPINEWIRE TECHNOLOGIES INC | Business | 127001196 | CHICAGO | NOT RENEWED | Verify |