| Entity Name | Type | License # | City | Status | Action |
|---|---|---|---|---|---|
| FORESIGHT INVESTIGATIVE SERVICES, INC. | Business | 117001916 | ROLLING MEADOWS | ACTIVE | Verify |
| FORESIGHT SOLUTIONS LLC | Business | 117001642 | CHICAGO | NOT RENEWED | Verify |
| FOREST ALARM SERVICE | Business | 127000150 | NAPERVILLE | ACTIVE | Verify |
| FOREST PARK POLICE TRAINING | Business | 201000838 | FOREST PARK | ACTIVE | Verify |
| FOREST SECURITY INC | Business | 127001393 | RIVER GROVE | ACTIVE | Verify |
| FOREST SECURITY SYSTEMS INC | Business | 128000053 | CHICAGO | NOT RENEWED | Verify |
| FOREST SECURITY SYSTEMS INC | Business | 122000398 | RIVER GROVE | INOPERATIVE | Verify |
| FOREST SECURITY SYSTEMS INC | Business | 128000075 | TINLEY PARK | NOT RENEWED | Verify |
| FOREST SECURITY SYSTEMS INC | Business | 127000126 | RIVER GROVE | NOT RENEWED | Verify |
| FOREST SECURITY SYSTEMS INC | Business | 117000456 | RIVER GROVE | INOPERATIVE | Verify |
| FOREST SECURITY SYSTEMS INC | Business | 128000052 | LAKE FOREST | NOT RENEWED | Verify |
| FORMIDABLE SECURITY SERVICES INTERNATIONAL CORP. | Business | 122001440 | CHICAGO | NOT RENEWED | Verify |
| FORT KNOX PROTECTION | Business | 122000278 | CHICAGO | NOT RENEWED | Verify |
| FORT KNOX PROTECTION | Business | 117000204 | CHICAGO | NOT RENEWED | Verify |
| FORT KNOX PROTECTIONINC | Business | 127000046 | CHICAGO | NOT RENEWED | Verify |
| FORTRESS SECURITY SYSTEMS | Business | 127000527 | CHICAGO | NOT RENEWED | Verify |
| FOSCETTS COMMUNICATION & ALARM CO | Business | 127000827 | CHICAGO | ACTIVE | Verify |
| FOSTER BANK | Business | 120500069 | CHICAGO | NOT RENEWED | Verify |
| FOUNDERS BANK | Business | 120500072 | WORTH | CLOSED | Verify |
| FOUR STAR VENTURES INCORPORATED | Business | 117001492 | SAINT CHARLES | ACTIVE | Verify |
| FOUR STAR VENTURES INCORPORATED | Business | 122001351 | ST CHARLES | ACTIVE | Verify |
| FOX DETECTIVE AGCY | Business | 201000213 | GLEN ELLYN | ACTIVE | Verify |
| FOX DETECTIVE AGCY | Business | 122000394 | GENEVA | NOT RENEWED | Verify |
| FOX INVESTIGATIONS | Business | 117001503 | ELGIN | CLOSED | Verify |
| FOX SECURITY INC | Business | 122001454 | MATTESON | ACTIVE | Verify |
| FOX SECURITY INC | Business | 117001804 | MATTESON | ACTIVE | Verify |
| FOX SECURITY INC DBA RUSH SOLUTION | Business | 123000470 | MATTESON | NOT RENEWED | Verify |
| FOX SECURITY SERVICES INC | Business | 127000635 | CHICAGO | NOT RENEWED | Verify |
| FOX VALLEY FIRE & SAFETY CO | Business | 127001780 | ELMHURST | ACTIVE | Verify |
| FOX VALLEY FIRE AND SAFETY CO | Business | 127000631 | ELGIN | ACTIVE | Verify |
| FOX VALLEY PATROL | Business | 117000392 | WAUCONDA | INOPERATIVE | Verify |
| FOX VALLEY SECURITY SYSTEMS | Business | 127000083 | ELGIN | ACTIVE | Verify |
| FRANK D HEABLER JR & ASSOCIATES LTD | Business | 102000166 | WOODSTOCK | ACTIVE | Verify |
| FRASCO INC | Business | 117001650 | OAKBROOK TERRACE | ACTIVE | Verify |
| FREDRIKSEN & SONS FIRE EQUIPMENT CO INC | Business | 127000531 | BENSENVILLE | NOT RENEWED | Verify |
| FREDRIKSEN FIRE EQUIPMENT COMPANY | Business | 127001658 | WOOD DALE | ACTIVE | Verify |
| FREEMAN JEWELERS INC | Business | 120500124 | CHICAGO | ACTIVE | Verify |
| FRIES WALTERS CO | Business | 127000661 | HILLSIDE | NOT RENEWED | Verify |
| FRITZ INC | Business | 127000209 | BELLEVILLE | INOPERATIVE | Verify |
| FRONTLINE SECURITY & INVESTIGATION INC | Business | 122000957 | BERWYN | NOT RENEWED | Verify |
| FRONTLINE SECURITY CORPORATION | Business | 122001583 | MOKENA | ACTIVE | Verify |
| FROST SECURITY SERVICE | Business | 127000025 | MACOMB | NOT RENEWED | Verify |
| FROST SECURITY SERVICE | Business | 117000119 | MACOMB | NOT RENEWED | Verify |
| FROST SECURITY SERVICE | Business | 122000099 | MACOMB | NOT RENEWED | Verify |
| FRUHAUF ENTERPRISES INC | Business | 127001113 | LOMBARD | NOT RENEWED | Verify |
| FSS TECHNOLOGIES LLC | Business | 127001656 | ARLINGTON HEIGHTS | NOT RENEWED | Verify |
| FSS TECHNOLOGIES LLC | Business | 127001716 | ARLINGTON HEIGHTS | ACTIVE | Verify |
| FTI INVESTIGATIONS LLC | Business | 117001324 | CHICAGO | ACTIVE | Verify |
| FULL ARMOR PROTECTION GROUP LLC | Business | 122001428 | BERWYN | ACTIVE | Verify |
| FULL ARMOUR SECURITY & SURVEILLANCE CORPORATION | Business | 127001498 | FRANKFORT | NOT RENEWED | Verify |