Incorporated in 1997, GeoTek is a full-service consulting engineering firm specializing in geotechnical engineering, construction materials testing, special inspections, and environmental consulting. The firm provides subsurface exploration and geotechnical design reports for construction of all typ

HC Hillis-Carnes Engineering Associates is a multi-specialty engineering firm based in Chantilly, Virginia, offering geotechnical and geostructural engineering, environmental consulting, specialty construction, construction materials engineering and testing, and third-party inspections. The firm ser

A&B Construction is a civil engineering contractor based in Oakland serving Northern California. For over 30 years, the company has provided infrastructure upgrading services including pre-construction planning, demolition, site improvement, utility installation, earthwork, shoring, excavation a

Crux Subsurface Inc., based in Spokane Valley, is a geotechnical drilling and foundation contractor founded in 1998. The company provides contract engineering and drilling services to logistically challenging infrastructure projects, including geotechnical analysis, drilling, engineering design, pro