| Entity Name | Type | License # | City | Status | Action |
|---|---|---|---|---|---|
| ONILEY FARWELL | Business | 104004247 | ASTORIA | NOT RENEWED | Verify |
| ONLINE ROOFING INC | Business | 104015786 | EDWARDSVILLE | NOT RENEWED | Verify |
| ONLY 1 CONSTRUCTION, INC | Business | 104019108 | ARLINGTON HEIGHTS | ACTIVE | Verify |
| ONLY ONE HOME IMPROVEMENT INC | Business | 104015411 | GLENVIEW | NOT RENEWED | Verify |
| ONOFRE RENOVATION INC | Business | 104016691 | CHICAGO | CANCELLED | Verify |
| ONOFRE'S RESTORATION PLLC | Business | 104019834 | CHICAGO | NOT RENEWED | Verify |
| ONTOP EXTERIORS, LLC | Business | 104018543 | KANKAKEE | ACTIVE | Verify |
| ONYX EXTERIORS LLC | Business | 104019455 | WORTH | NOT RENEWED | Verify |
| ONYX ROOFING & DEVELOPMENT LLC | Business | 104018014 | ROCKFORD | NOT RENEWED | Verify |
| ONYX ROOFING LLC | Business | 104019980 | CHICAGO | NOT RENEWED | Verify |
| OPAL ENTERPRISES INCORPORATED | Business | 104015563 | NAPERVILLE | NOT RENEWED | Verify |
| OPAL ENTERPRISES WINDOWS AND SIDING COMPANY | Business | 104018119 | DES PLAINES | NOT RENEWED | Verify |
| OPL ROOFING LLC | Business | 104019004 | BLOOMINGTON | NOT RENEWED | Verify |
| OPM INVESTED INC | Business | 104006607 | BELLEVILLE | NOT RENEWED | Verify |
| OPM STRATEGIES LLC | Business | 104018654 | CHICAGO | ACTIVE | Verify |
| OPPER HOME IMPROVEMENT | Business | 104006349 | GERMANTOWN HILLS | CANCELLED | Verify |
| OPPERMAN AND SONS | Business | 104001001 | PONTIAC | NOT RENEWED | Verify |
| OPTIMAL HOME IMPROVEMENT, INC. | Business | 104020454 | STREAMWOOD | ACTIVE | Verify |
| OPTIMAL ROOFING LLC | Business | 104019432 | CHICAGO | NOT RENEWED | Verify |
| OPTIMAL SOLUTIONS ROOFING CONSTRUCTION PLLC | Business | 104019300 | SOUTH ELGIN | ACTIVE | Verify |
| OPTIMUM RENOVATIONS INC | Business | 104019962 | ROCKFORD | ACTIVE | Verify |
| OPTIMUM ROOFING INC | Business | 104019555 | LOCKPORT | ACTIVE | Verify |
| OPUS CONSTRUCTION CORPORATION | Business | 104017619 | ADDISON | NOT RENEWED | Verify |
| ORANGEVILLE CONSTRUCTION | Business | 104006978 | ORANGEVILLE | NOT RENEWED | Verify |
| ORBIS CONSTRUCTION COMPANY INC | Business | 104016824 | MCHENRY | NOT RENEWED | Verify |
| ORC SERVICES GROUP INC | Business | 104017506 | NILES | INACTIVE | Verify |
| ORCHARD PARK CONSTRUCTION | Business | 104001839 | SPRINGFIELD | NOT RENEWED | Verify |
| ORDONEZ CONSTRUCTION CORP | Business | 104020489 | MARENGO | ACTIVE | Verify |
| ORE W VACKETTA AND SONS INC | Business | 104001106 | DANVILLE | CANCELLED | Verify |
| ORIGIN RESTORATION, INC | Business | 104018684 | LINCOLNSHIRE | ACTIVE | Verify |
| ORIGINAL HOME IMPROVEMENT INC | Business | 104015633 | LISLE | ACTIVE | Verify |
| ORION JOHNSON ROOFING LLC | Business | 104020624 | DECATUR | ACTIVE | Verify |
| ORLAND PARK ROOFING | Business | 104005370 | ORLAND PARK | CANCELLED | Verify |
| ORNAT ROOFING CORP | Business | 104009120 | NILES | CANCELLED | Verify |
| ORO CONSTRUCTION | Business | 104013314 | HOFFMAN ESTATES | NOT RENEWED | Verify |
| OROURKE'S ROOFING CO | Business | 104002844 | ALGONQUIN | CANCELLED | Verify |
| OROZCO & DAUGHTER HEATING | Business | 104010795 | BLUE ISLAND | NOT RENEWED | Verify |
| OROZCO CONSTRUCTION | Business | 104014082 | CHICAGO | NOT RENEWED | Verify |
| ORTEGA CONSTRUCTION & HOME REPAIR | Business | 104009263 | CHICAGO | NOT RENEWED | Verify |
| ORTMAN CONSTRUCTION | Business | 104013528 | ST ANNE | NOT RENEWED | Verify |
| ORVILLE CURTIS CONSTCO | Business | 104002557 | PEORIA | NOT RENEWED | Verify |
| ORVILLE E NOLAN | Business | 104003562 | LENA | NOT RENEWED | Verify |
| OSAMA M BADRAN | Business | 104014046 | BELVIDERE | ACTIVE | Verify |
| OSBORN BUILDERS | Business | 104011232 | CHARLESTON | NOT RENEWED | Verify |
| OSBORN HOMES INC | Business | 104009149 | COLLINSVILLE | NOT RENEWED | Verify |
| OSBORNE CONSTRUCTION | Business | 104010070 | KEWANEE | NOT RENEWED | Verify |
| OSBORNE CONSTRUCTION CO | Business | 104013680 | MONTICELLO | NOT RENEWED | Verify |
| OSCAR FLORES SERVICES INC. | Business | 104018934 | CHAMPAIGN | ACTIVE | Verify |
| OSCAR L POWELL | Business | 104001593 | DANVILLE | CANCELLED | Verify |
| OSCAR NEAL CONTRACTORS | Business | 104000718 | MONMOUTH | NOT RENEWED | Verify |