We provide

Common Sense, Practical
& Economical Solutions.

GeoTek Engineering & Testing Services, Inc. is a privately owned corporation formed in 1988 and based in Sioux Falls, SD. GeoTek has concentrated on maintaining a staff of qualified and experienced personnel. This includes registered professional engineers, certified professional geologists, and certified industrial hygienists with many years of experience. The engineering project managers are supported by experienced drill crews, technicians, scientists, and administrative staff.


We are

Geotechnical Engineers

Since 1988, GeoTek has been recognized as a leader in the field of geotechnical engineering. We provide a wide range of geotechnical engineering services for a variety of construction projects in a 5-state region.

We are

Construction Material Engineers

Our experienced staff performs the construction materials testing at either the project site or within our laboratory to ensure the project specifications and governing building codes are met.

We are

Environmental Consultants

The aspects of environmental consulting are vast, and at GeoTek, we pride ourselves on providing the very best in environmental consulting services. From indoor air quality issues to emergency spill response, GeoTek's professional team is your single-source partner.