| Entity Name | Type | License # | City | Status | Action |
|---|---|---|---|---|---|
| CREATIVE STRUCTURAL CONCEPTS INC | Business | 184004422-0003 | VILLAGE OF LAKEWOOD | CLOSED | Verify |
| CREATIVE SYSTEMS ENGINEERS INC | Business | 184001277-0002 | CHICAGO | NOT RENEWED | Verify |
| CREO LLC | Business | 184007069-0001 | RIVER FOREST | NOT RENEWED | Verify |
| CREST CONSULTING ENGINEERS PC | Business | 184002811-0007 | OAK BROOK | ACTIVE | Verify |
| CRI ENGINEERING | Business | 184004351-0002 | WAUCONDA | NOT RENEWED | Verify |
| CRIEZIS ARCHITECTS INC | Business | 184000458-0001 | EVANSTON | NOT RENEWED | Verify |
| CRITERIUM COLLINS ARCHITECTS & ENGINEERS INC | Business | 184000557-0004 | OAK PARK | NOT RENEWED | Verify |
| CRL GROUP LLC | Business | 184003871-0002 | GENEVA | NOT RENEWED | Verify |
| CROSS COUNTRY LAND SURVEYING & ENGINEERING LTD | Business | 184004658-0010 | MARION | NOT RENEWED | Verify |
| CROSS ENGINEERING & ASSOCIATES INC | Business | 184005623-0002 | NORTHBROOK | ACTIVE | Verify |
| CROSSMARK SURVEYING LLC | Business | 184005065-0008 | MCHENRY | NOT RENEWED | Verify |
| CROSSROADS DESIGN INC | Business | 184002340-0001 | LIBERTYVILLE | NOT RENEWED | Verify |
| CROSSROADS/BLUE SKY LLC | Business | 184005557-0001 | LAKE FOREST | NOT RENEWED | Verify |
| CROSSWAY ENGINEERING PLLC | Business | 184008023-0002 | NAPERVILLE | ACTIVE | Verify |
| CRSS OF ILLINOIS INC | Business | 184001422-0003 | CHICAGO | NOT RENEWED | Verify |
| CRUZ DESIGNS AND CONSULTANTS LLC | Business | 184008136-0001 | CHICAGO | ACTIVE | Verify |
| CS ARCHITECTURAL | Business | 184002286-0001 | CHAMPAIGN | NOT RENEWED | Verify |
| CS2 DESIGN GROUP LLC | Business | 184001565-0002 | ELK GROVE | ACTIVE | Verify |
| CSA GREAT LAKES INC | Business | 184004382-0004 | CHICAGO | CANCELLED | Verify |
| CSA PARTNERS LTD | Business | 184006763-0001 | CHICAGO | ACTIVE | Verify |
| CSD ENVIRONMENTAL SERVICES INC | Business | 184001560-0002 | SPRINGFIELD | ACTIVE | Verify |
| CT MECHANICAL | Business | 184007635-0002 | ADDISON | ACTIVE | Verify |
| CTI FIELD SERVICES INC | Business | 184006130-0002 | EDWARDSVILLE | NOT RENEWED | Verify |
| CTL ENGINEERS & CONSTRUCTION TECHNOLOGY CONSULTANTS, P.C. | Business | 184005453-0004 | MT PROSPECT | ACTIVE | Verify |
| CUASAY AND ASSOCIATES | Business | 184001743-0006 | BENSENVILLE | NOT RENEWED | Verify |
| CUBELLIS/MGDF ASSOCIATES, INC. | Business | 184004831-0005 | CHICAGO | CANCELLED | Verify |
| CUMMINS & BARNARD ILLINOIS INC | Business | 184001643-0002 | HINSDALE | NOT RENEWED | Verify |
| CUMMINS ENGINEERING CORPORATION | Business | 184002092-0014 | SPRINGFIELD | ACTIVE | Verify |
| CUPLIN & ASSOCIATES INC | Business | 184005197-0008 | RIDOTT | CANCELLED | Verify |
| CURL & ASSOCIATES INC | Business | 184000877-0010 | CENTRALIA | NOT RENEWED | Verify |
| CURRY & ASSOCIATES ENGINEERS INC | Business | 184000822-0002 | NASHVILLE | ACTIVE | Verify |
| CURTAIN WALL DESIGN AND CONSULTING INCORPORATED | Business | 184006148-0003 | CHICAGO | ACTIVE | Verify |
| CW DESIGN GROUP. INC | Business | 184007566-0001 | WAUCONDA | ACTIVE | Verify |
| CW3M COMPANY | Business | 184005803-0002 | SPRINGFIELD | ACTIVE | Verify |
| CWM ARCHITECTS LLC | Business | 184009621-0001 | CHICAGO | ACTIVE | Verify |
| CWR CONSULTANTS INC | Business | 184002105-0002 | GLENDALE HEIGHTS | NOT RENEWED | Verify |
| CXE GROUP LLC | Business | 184005666-0002 | EDWARDSVILLE | ACTIVE | Verify |
| CYBOR FIRE PROTECTION COMPANY | Business | 184005174-0002 | DOWNERS GROVE | ACTIVE | Verify |
| CYCLONE GROUP PC | Business | 184006416-0002 | CHICAGO | ACTIVE | Verify |
| CYNTHIA WINTER ARCHITECTS LLC | Business | 184002991-0001 | CHICAGO | NOT RENEWED | Verify |
| CZAPLICKI LOPEZ PLLC | Business | 184008135-0006 | BURR RIDGE | ACTIVE | Verify |
| CZERKIES DESIGN LLC | Business | 184005019-0001 | JOLIET | ACTIVE | Verify |
| D & D ENGINEERING DESIGN INC | Business | 184002039-0002 | CHICAGO | NOT RENEWED | Verify |
| D A K AND ASSOCIATES | Business | 184001744-0001 | CHICAGO | NOT RENEWED | Verify |
| D A SCHILLER & ASSOCIATES ARCHITECTS | Business | 184000787-0001 | NORTHBROOK | NOT RENEWED | Verify |
| D A SYNTEC LTD | Business | 184002037-0001 | CHICAGO | NOT RENEWED | Verify |
| D AND M ENGINEERING PC | Business | 184004636-0002 | JOLIET | NOT RENEWED | Verify |
| D J MOTYKA INC | Business | 184003331-0001 | TINLEY PARK | NOT RENEWED | Verify |
| D J BLAIR DESIGN LLC | Business | 184005805-0001 | GRAYSLAKE | CANCELLED | Verify |
| D K ARCHITECTURE INC | Business | 184005309-0001 | WHEATON | NOT RENEWED | Verify |