
Growth at GLA continues with the exciting addition of RGH Consultants, a Santa Rosa-based geotechnical engineering and consulting firm with a strong legacy of client service and technical excellence.
Founded in 1991, RGH brings over 30 years of experience in geotechnical engineering, geological services, soils and materials testing, and special inspection services. Their team of 30 professionals has contributed to a wide range of public works and infrastructure projects, including dams, reservoirs, hospitals, schools, residential and commercial developments, resorts, and wineries.
RGH will continue operating under the leadership of Eric Chase, President and Principal Geotechnical Engineer. The firm also operates a full-service geotechnical materials testing laboratory staffed by trained and licensed professionals offering specialized testing and inspection services for reinforcing steel, post-tensioning, concrete, grout, shotcrete, epoxy, bolt torquing, and asphalt.
With the addition of RGH, GLA now comprises 350 employees across 30 offices in the U.S. and abroad, further strengthening our presence in Northern California and expanding our geotechnical capabilities in the region.






