Shannon & Wilson

Shannon & Wilson is an employee-owned geotechnical engineering and earth sciences firm founded in 1954, headquartered in Seattle, Washington.

The firm specialises in geotechnical engineering, engineering geology, environmental services and natural resources, working on transportation infrastructure, tunnels, dams and projects in complex ground conditions.

Its services include geotechnical and geologic investigations, seismic and landslide hazard analysis, hydrogeology, instrumentation and monitoring, and laboratory testing.