GeoSoils, Inc. (GSI) is a premier geotechnical and environmental engineering consulting firm with a rich history of delivering innovative and cost-effective solutions to clients locally, nationally, and internationally. With offices in Los Angeles County, Orange County, the Inland Empire, and San Diego County, GSI is equipped with state-of-the-art facilities, including mobile laboratories for on-site needs.

Our team consists of multidisciplinary professionals, including geologists, civil and coastal engineers, hydrogeologists, and environmental technicians. Our specialties include geotechnical investigations, environmental engineering, coastal services, and litigation support, serving a wide range of sectors such as land development, public works, and private projects.

Our approach is simple, from earth to oceans, we’ve got you covered. We look forward to being your trusted partner for solutions rooted in integrity, defined by continuity, and proven through consistency.