EARTH SYSTEMS
Building ConstructionCalifornia, United States51-200 Employees
Earth Systems is a mid-sized firm based in San Luis Obispo, California, with more than five decades of operation. The company offers expertise spanning applied earth sciences, construction observation, materials testing, and environmental assessments. It serves clients throughout California, delivering practical, site-appropriate solutions to geotechnical engineering challenges. This work supports sustainable development by addressing the technical and environmental factors involved in construction projects. Within the building construction sector, Earth Systems positions itself as a provider of geotechnical engineering support that informs project planning, risk assessment, and on-site observation. The company has earned industry recognition, including an ACEC California Honor Award in 2025 for the Watts Skatepark project.