Superior service ...practical solutions!
For four decades GSI has been recognized as a leading expert in the
field of geotechnical engineering with highly trained professionals, a large fleet of subsurface exploration equipment and in-house drilling that
allows us to offer time-efficient scheduling and mobilize...
GSI maintains a fleet of drill rigs of various sizes and types for soil sampling, well installation, rock/asphalt coring and more. Our full support includes geoprobe direct push equipment, a cone penetrometer and the best technical experts in the industry....
GSI Engineering is leading the way in engineering and environmental sciences, materials testing and drilling. In 40 years we've worked on some of the largest, most complex projects in the Midwest and the country. We've also gained a reputation for getting the job done right. That's why so many public and private companies turn to us for their most important projects.
Our Environmental Professionals have an in-depth understanding of pertinent regulatory issues. We can help protect your investment with Phase I, II and II ESAs, trend tracking...
Get the Job Done Right!
Top Experts and a Fleet of Drilling Equipment!
GSI's in-house and mobile laboratories provide specialized services for inspection sampling, testing and documentation, and Quality Assurance and Quality Control activities to determine the physical properties of
soils for construction materials, geotechnical and...
In-House and Mobile Laboratories!
Protect Your Investment!