Engineering Geology

Anderson Professional Services, LLC (APS GEO) provides geotechnical engineering, civil engineering and site development, construction materials testing, professional land surveying, and subsurface investigations. The team combines geotechnical engineering and design-build construction design experience and maintains an AASHTO accredited soils laboratory.

AASHTO accredited soils laboratory testingconcrete coringconstruction materials testinggeotechnical field explorationsin-house drillingland surveying including drone surveysphotogrammetric modelingrock coringrockfall mitigation designstructural special inspections

Crux is a geotechnical drilling and construction firm founded in 1998 that provides geotechnical analysis, engineering design, drilling, and program management services on logistically challenging infrastructure projects. It is a full-service foundation provider designing and installing standard and specialty deep and shallow foundations, and is part of the Quanta West group of companies.

data loggingdigital mappingfoundation design and constructiongeotechnical drillingground improvementin-house fabricationQuality Managementstructural engineeringsubsurface investigation and remediation

Foundation Engineering, Inc. is an Oregon-based geotechnical engineering firm that has provided geotechnical design and construction monitoring services since 1982. It serves the Pacific Northwest with expertise in geotechnical and geological properties, delivering analyses, designs, and recommendations for projects including airports, buildings, transportation, energy, water and wastewater, and waterfront facilities.

construction monitoringconstruction observationdewateringDynamic pile testing (PDA)Forensic engineeringgeotechnical designgeotechnical investigationsground improvementinstrumentation and monitoringLandslide investigations and mitigationpavement designSeismic hazard studies and retrofitvalue engineering

Geo-Advantec, Inc. (GAI) is a privately held Small Business Enterprise (SBE) geotechnical consulting firm founded in January 2012 by Dr. Shawn Ariannia. It provides geotechnical engineering, engineering geology, earthquake engineering, soils and materials testing, and construction testing and inspection services to public and private sector clients from conceptual design through project completion.

geotechnical earthquake engineeringgeotechnical engineeringGeotechnical instrumentationgrading, monitoring and field testingground improvement designliquefaction and seismic settlement analysisPavement engineeringslope stability investigation, analysis, and designsoils & materials laboratory testingspecial inspection servicessubsurface exploration and downhole logging

Geocon is a California corporation established in 1971 as a professional engineering consulting firm providing comprehensive geotechnical engineering, geotechnical instrumentation, environmental consulting, engineering geology, and construction inspections, including materials testing and special inspections. It also provides environmental remediation contracting services and operates soils and materials testing laboratories. Geocon has 11 regional offices across California with over 350 engineers, geologists, environmental scientists, technicians, and s

Backfill Compaction Testingconstruction inspectionenvironmental consultingEnvironmental Remediationgeotechnical engineeringinstrumentationmaterials testingspecial inspectionsSteel and Welding Fabricator Shop Inspections

GeoEngineers is an engineering firm providing geotechnical, environmental, and water resources services across practice areas including development, energy and industry, marine and coastal, natural resources and environment, pipelines, and transportation. The firm offers expertise in earth sciences, engineering, construction design, dam engineering, fish passage, and trenchless design.

Coastal RestorationConstruction DesignDam EngineeringEnvironmental Compliance and PermitsEnvironmental RemediationFish Passagegeotechnical engineeringGIShydrogeologyHydrology & HydraulicsLab/Testing ServicesManaged Aquifer RechargeMarine Infrastructureperformance-based designTrenchless Design and Engineering

Hilltop Geotechnical Inc. is a full-service engineering firm founded in San Bernardino, California in 1990. It provides geotechnical engineering, environmental site assessment, and materials testing and inspection services, with expertise in soil properties and environmental challenges for residential and commercial construction projects in Southern California and the West Coast Region.

environmental site assessmentgeotechnical engineeringmaterials testing and inspectionspecial inspection

InfraTerra is a certified small business enterprise based in San Francisco (LBE micro) that specializes in the integration of earth sciences and geologic hazard characterization with engineered solutions for lifelines in the water and energy sectors. They have consulting experience in geology, earthquake engineering and structural engineering with emphasis on natural hazard risk and reliability assessment of infrastructure systems.

dynamic analysisgeohazards assessmentGIS / geologic mappingnumerical simulationsreliability assessmentretrofit designseismic hazard engineeringseismic review of structures