Our management team is lead by GSI's president, Julian Rueda, P.E. Julian is a 1981 University of Illinois-Champaign-Urbana (UIUC) civil engineering graduate who started his career working at the Chicago Department of Transportation and began Geo Services, Inc. in 2000.

Andrew (Drew) Ptak, has been Geo Services, Inc.'s office manager since 2003. He is also a 1993 UIUC (BS, MS) graduate of UIUC Civil Engineering (geotechnical and structural specialties) who began his career working as a foundation engineer for Chicago Bridge and Iron (CBI) and STS Consultants, Inc.

Steve Bucher, has been the senior geotechnical engineer at GSI since 2012. Steve began his career at STS Consultants and spent many years at Terracon Consulting.

Arun Tailor is GSI's lab and materials manager and a graduate of the College of Engineering and Technology, India. He began his career with Geo Services, Inc. in 2003 as a field technician and worked his way up through the organization to assume managerial responsibilities in 2016.