In 2006, Terracon opened its Chicago office located in the West Loop on Lake Street. The office started out as an environmental and facilities office. In 2008, the Naperville office relocated a geotechnical engineer and a materials engineering and testing project manager in order to serve the downtown market. The Naperville and Chicago offices work very closely with one another.
The Chicago Terracon office provides geotechnical engineering and construction materials testing services for construction projects. The Chicago office also works on environmental site assessments and remediation as well as due diligence assessments.