- Illinois Department of Transportation
- Chicago Department of Transportation
- Illinois State Toll Highway Authority
- Cook County
- US CERL
- DCFS
- WSP
- ONCOR
- GRAEF USA
- H.W. LOCHNER, Inc.
- Elara Engineering
- Hanson Engineering
- AECOM
- Temple Architects, LLC
- Trussnetusa, inc
- Aldridge Electric, Inc.
- Loyola University Chicago
- DSI
- Albin Carlson & Co.
- Carrier
- Randall Architects
- HLH
- Oak Brook Mechanical Services
- ACS (Accurate Construction Services)
- Patrick Engineering
- Advanced Consulting Group International
- North American Salt Company
- Draper and Kramer Inc.