LGC is a group of separately owned independent Southern California geotechnical consulting firms providing professional services throughout Orange, Riverside, San Diego, Los Angeles, San Bernardino, and Ventura Counties. LGC Companies are Lawson and Associates Geotechnical Consulting, Inc. (LGC Coastal), LGC Inland, and LGC Valley. LGC Companies take advantage of fresh ideas and modern approaches and combine them with a broad experience in geotechnical consulting.

The staff at LGC includes highly-educated and licensed geologists and engineers who combine their technical knowledge and extensive field experience to provide straightforward, cost effective engineering solutions to complex geotechnical problems. Our senior level personnel have gained the trust and respect of clients and professional members within the geotechnical community.

"LGC's shared philosophy combines commitment, motivation and teamwork to provide our clients with quality work in a timely and professional manner."
– Tim Lawson

• Tim Lawson, President – Lawson and Associates Geotechnical Consulting, Inc.
• Mark Bergmann, President – LGC Inland
• Matthew Hawley, President – LGC Valley