| Vendor Name |
| AECOM Services of Illinois, Inc. |
| Bailey Edward Design, Inc. |
| Booth Hansen Ltd. |
| Brook Architecture, Inc. |
| Built Form, LLC |
| Daniel P. Coffey & Associates, Ltd |
| David Mason & Associates of Illinois, Ltd. |
| David Woodhouse Architects, LLC |
| Eifler & Associates |
| exp. US Services, Inc. |
| FGM Architects, Inc. |
| Fitzgerald Earles Architects, Inc. |
| Fox and Fox Architects |
| Fox and Fox Architects |
| Ghafari Associates, LLC |
| Globetrotters Engineering Corporation |
| Harding Partners |
| Hasbrouck, Peterson, Zimoch, Sirirattumrong |
| HBRA Architects, Inc. |
| HOH Architects, Inc. |
| JGMA |
| Johnson & Lee Architects |
| Kaltsouni Mehdi, Inc. |
| Knight E/A Inc. |
| LCM Architects, LLC |
| Legat Architects |
| McDonough Associates, Inc. |
| Milhouse Engineering and Construction, Inc. |
| Mode Architects |
| Moody Nolan, Inc. |
| Morris Architects Planners, Inc. |
| MRA Architects, Ltd. |
| Muller and Muller Ltd. |
| Primera Engineers, Ltd. |
| RADA Architects, Ltd. |
| Ross Barney Architects, Inc. |
| ROULA ASSOCIATES ARCHITECTS, CHTD. |
| Schroeder Murchie Niemiec Gazda-Auskalnis (SMNG-A) Architects, Ltd. |
| STL Architects, Inc. |
| Studio Gang Architects, Ltd. |
| Studio GC, Inc. |
| T. Y. Lin International Great Lakes, Inc. |
| Urban Works, Ltd. |
| Valerio Dewalt Train Associates, Inc. |
| Weiss Architects, LLC |
| Wight & Company |
| Williams Associates Architects, Ltd |
| Wiss, Janney, Elstner Associates, Inc. |