Soils Engineering, Inc. (SEI) has over 40 years of experience in providing geotechnical engineering, geological, environmental, materials testing and surveying services to private, government and industrial clients throughout California, in the areas of Kern County, Tulare County, Ventura County, Monterey County, San Joaquin County and San Luis Obispo County. We hope you will consider us during the bidding process to provide engineering services on your current or future projects.