Our team is the foundation of everything we do.

At Thiele Geotech, our engineers, scientists, and technicians bring decades of combined experience and a deep commitment to quality on every project. Whether it’s a complex geotechnical investigation or fast-turnaround materials testing, our people lead with curiosity, precision, and pride in their work.

Collaborative. Curious. Consistently dependable.

We believe in investing in professional growth, mentoring the next generation of geotechnical leaders, and building strong relationships with our clients. That’s why our customers return again and again—not just for our expertise, but for the people behind it.

Meet the team that’s shaping the ground beneath your success.

Ray Brock

Ray Brock

Sr. Engineering Technician
Broc Burmeister, P.G.

Broc Burmeister, P.G.

Project Geologist
Chris Chadwell

Chris Chadwell

Sr. Engineering Technician
Heath Cutler, P.E.

Heath Cutler, P.E.

Project Engineer
Caiden Dynek

Caiden Dynek

Project Engineer
Brian Gappa

Brian Gappa

Drilling Manager
Michael Gerdes, S.E.T.

Michael Gerdes, S.E.T.

CFO
Corey Hanel, C.E.T.

Corey Hanel, C.E.T.

Lab Manager
Jenna Jaworski

Jenna Jaworski

Environmental Scientist
Josh Kankovsky, P.E.

Josh Kankovsky, P.E.

VP | Materials Testing Department Manager
Lindsey Kelly

Lindsey Kelly

Staff Geologist
Cody Kimball, P.E.

Cody Kimball, P.E.

Project Engineer
Robert Lapke, P.E.

Robert Lapke, P.E.

President
Bob Matlock, P.E.

Bob Matlock, P.E.

Sr. Vice President
Donna Matlock, P.G.

Donna Matlock, P.G.

Sr. Geologist
Robert Miller, P.G.

Robert Miller, P.G.

VP | Environmental Engineering Department Manager
Justin Morgan, C.E.T.

Justin Morgan, C.E.T.

Instrumentation Department Manager
Brett Priebe, P.E.

Brett Priebe, P.E.

VP | Earth Retention Design Department Manager
Collin Steimer, E.I.

Collin Steimer, E.I.

Project Engineer
Andy Thiele

Andy Thiele

Field Service Manager
Daniel Thiele, P.E.

Daniel Thiele, P.E.

Chairman
Raeanna Thiele, P.E.

Raeanna Thiele, P.E.

VP | Geotechnical Engineering Department Manager
Tyler Tomanek

Tyler Tomanek

Environmental Scientist

Seth Yakel

Seth Yakel

Technical Project Manager