Certerra (Western Technologies)
Civil EngineeringArizona, United States201-500 Employees
Certerra, operating under the Western Technologies name, is a civil engineering consulting firm based in Phoenix, Arizona. It focuses on geotechnical engineering, environmental consulting, construction materials testing, nondestructive testing, and various inspection disciplines to support a range of project needs. Founded in 1955, the firm has grown into a nationally recognized organization with a broad regional footprint across the southwestern United States. Its client base includes architects, engineers, developers, financial institutions, attorneys, government entities, educational institutions, and healthcare facilities. The company handles projects of all sizes, from small commercial developments to major infrastructure such as airports, high-rise buildings, dams, and highways, offering services that span forensic engineering, environmental site assessments, and indoor air quality testing.