THG Geophysics is a near surface geophysical consulting firm offering a full array of surface and borehole techniques and applications.


We provide material parameters for design, integrity testing (liner, foundation, etc), utility mapping, and non-invasive subsurface imaging among other services to aid engineers and maximize project effectiveness.


Contamination plume delineation, fracture mapping, and buried hazard identification are just some of the ways THG is committed to ensuring project footprints are limited and controlled.


Using state-of-the-art techniques we are proud to support the energy sector through subsurface condition assessment, engineering testing, void delineation, and utility mapping services.

We provide our clients with data that helps them focus their investigations and improve the quality of their designs.