GENTERRA Consultants, Inc. was established in southern California in 1995. The firm provides civil engineering, water resources engineering and geotechnical services for dams, levees and other water and flood control facilities, dam safety evaluations, dam design, dam engineering, dam rehabilitation, dam safety and levee safety risk analyses, geology, surface water hydrology, dam failure analyses, ground water hydrology, water resources, hydropower facilities, construction inspection, soil testing, third-party reviews and expert witness services.

GENTERRA provides geotechnical services for all types of projects, particularly for water storage, water conveyance and flood control facilities, instrumentation, geology, site investigations, failure inundation studies, risk analyses, third-party reviews, expert witness services and other consulting services for clients in the public, private, legal and insurance sectors. The firm has also provided evaluations of distress and failures of dams and other types of facilities.

GENTERRA is certified by the Small Business Administration (SBA) as a Small Business Enterprise (SBE), California Certificate #4480. We are registered in the System for Award Management (SAM). Primary NAICS code 541330. The headquarters are in Irvine, CA, with branch offices in Sacramento, CA; Tempe, AZ; Lakewood, CO; and Harrisburg, PA.