CLIENT LIST

GLSEC's client list includes Federal and State Government agencies, villages, municipalities, consultants and contractors. Although we are based in the midwest, our clients come from throughout the country.

To name a few ...

Illinois Department of Transportation (IDOT)

Illinois State Toll Highway Authority (ISTHA/TOLLWAY)

Chicago Department of Transportation (CDOT)

Public Building Commission of Chicago

US Army Corps of Engineers (USACE)

City of Naperville

Bechtel Corporation

WRS Infrastructure and Environment

Walsh Construction Company