St. Louis

Justin Lewis, P.E. is a graduate of the University of Illinois at Urbana-Champaign with a B.S. and M.S. in Civil and Environmental Engineering with a focus on geotechnical engineering. He has worked at Keller for 15+ years after joining upon completion of his degrees in 2008. He has worked with a wide variety of technologies with particular experience in the fields of jet grouting, earth retention, micropiles, and driven piles. 

Justin has previously held roles as Field Engineer, Project Engineer, Project Manager, Division Manager, and Project Executive at Keller and currently serves as Branch Manager for the Great Lakes Branch in the Midwest. He is responsible for managing and supporting a talented team bidding, designing, and managing geotechnical construction projects. 

Greg holds a BS in civil engineering from Northwestern University and an MS in geotechnical engineering from the University of Michigan. 

He is an active member of the ASCE Geo-Institute and DBIA.

Greg has been with Keller for over 20 years, and is responsible for business development for Keller’s North and Pacific regions.  Greg is licensed professional engineer in several midwestern states, and has served as a Project Manager, Area Manager and Branch Manager overseeing many ground improvement, grouting, piling, and earth retention projects.