Founded in 1964 as a soils and foundations specialty consultant, GZA GeoEnvironmental, Inc. (GZA) has grown into a full-servi ... ce company providing its clients with highly diversified technical services supporting our core practice areas. GZA employs over 650 engineers, scientists, and technical support staff in 32 offices throughout the U.S. With a legacy of experience in geotechnical and environmental engineering, GZA's core offerings include water, ecology, and construction management services. read more