Berlogar Stevens & Associates (BSA) is a full-service geotechnical firm that is owned and staffed by experienced professional engineers, geologists, field technicians, and special inspectors. The firm was founded as Berlogar, Long and Associates in 1973 on the principle of providing high quality geotechnical engineering, engineering geology, and environmental consulting services. BSA is known for its common sense solutions to complicated geotechnical issues.


BSA has been providing engineering, testing, and inspection services for over 30 years. We maintain a full service laboratory in Pleasanton and a branch office/laboratory in Salida, California. Our laboratories are CCRL, AMRL, AASHTO, and LEA certified. BSA is signatory to the Local 3 Operators union for our inspectors.