Building with Confidence Starts Below the Surface.
Schedule a complimentary consultation with our experienced geotechnical engineering team.
Since 1980, GeoSystems has provided professional geotechnical engineering, engineering geology, geologic evaluations, feasibility studies, and soils investigations for residential, commercial, industrial, and public development projects throughout Southern California.
Our evaluations and feasibility studies assist clients with the purchase and development of residential and commercial properties by identifying site conditions before construction begins.
Our experienced team performs detailed engineering investigations, laboratory testing and analysis, subsurface investigations, downhole logging, and non-destructive geotechnical evaluations to develop practical engineering and design recommendations.
Every project is backed by accurate data and expert analysis, giving property owners, developers, architects, and engineers the confidence to move forward with their projects.
With over 40 years of experience, GeoSystems has completed more than 40,000+ projects totaling over $3 billion across Southern California.
GeoSystems
QUALITY
GeoSystems is staffed by licensed engineers, geologists, and technicians who bring extensive Southern California experience. Our strict quality control standards and certified in-house soils testing laboratory ensure accurate, reliable results on every project, with all reports reviewed by licensed professionals.
EXPERIENCE
With over 40,000+ completed projects and $3 billion in developments across Southern California, GeoSystems delivers trusted geotechnical expertise for complex site
conditions and seismic hazards.
PERSONAL SERVICE
Every project is led by a dedicated professional who ensures clear communication, quality control, and on-time delivery from the mountains to the sea.
Rebuilding Pacific Palisades & Altadena Starts with the Right Foundation.
Expert geotechnical engineering and soils investigations to help you rebuild safely, confidently, and in compliance.
Our technical, field, and support teams are committed to responsiveness, accuracy, and timely delivery.
GeoSystems
Build Your ADU on Solid Ground
Our experienced geotechnical team delivers the soils investigations, engineering reports, and foundation recommendations needed to move your ADU or JADU project forward with confidence.
PROFESSIONAL SERVICES
ENGINEERING, GEOLOGY & GEOTECHNICAL ENGINEERING
ENGINEERING, GEOLOGY & GEOTECHNICAL ENGINEERING
ENGINEERING, GEOLOGY & GEOTECHNICAL ENGINEERING
- Soils and Engineering-Geologic Investigation Reports
- Fire Rebuilds
- Hillside Residential & Subdivision Development
- Public Buildings, Parks & Recreation Facilities and Schools
- Beachfront Development
- Road Alignments & Communication Systems
- Engineered Structures
SOILS & FOUNDATION INVESTIGATIONS
ENGINEERING, GEOLOGY & GEOTECHNICAL ENGINEERING
ENGINEERING, GEOLOGY & GEOTECHNICAL ENGINEERING
- Foundation Investigation Reports / Soils Reports
- Residential Structures (Single-family, ADU & Multi-family)
- Multi-story Commercial Buildings & Shopping Centers
- Industrial Buildings & Parks
- Public Buildings & Multi-level Parking Structures
- School and Church Facility Structures
- Percolation Testing for Private Sewage Disposal Systems
GEOLOGIC & HAZARD EVALUATIONS
ENGINEERING, GEOLOGY & GEOTECHNICAL ENGINEERING
SLOPE, SHORING & EARTH STRUCTURES
- Liquefaction Analysis
- Fault Trenching & Seismic Hazard Analysis (Alquist-Priolo Special Studies Zones)
- Geologic Hazards Evaluation
- Surficial and Mega-Landslide Analysis (Recent & Prehistoric)
- Mudflow Analysis & Debris Basins
- Interpretation of Aerial Photos & Record Research
- Pre-purchase Geologic Evaluations
- Geologic Feasibility Studies for new developments
SLOPE, SHORING & EARTH STRUCTURES
LABORATORY, SURVEY & MONITORING SERVICES
SLOPE, SHORING & EARTH STRUCTURES
- Slope Stabilization options
- Retaining Wall, Shoring and Foundation Recommendations
- Geotechnical Design Criteria for Earth Support Systems
- Temporary Excavations, Shoring & Earth Support Observation
- Keyway, Benching, Lagging & Subdrain Observation
- Foundation Pile Shaft (Friction) & Driven Piles
CONSTRUCTION & GRADING SERVICES
LABORATORY, SURVEY & MONITORING SERVICES
LABORATORY, SURVEY & MONITORING SERVICES
- Construction & Grading Observations/Inspections
- Field Compaction Testing & As-built Compaction & Grading Reports
- Deputy Grading Inspections (Certified – City of Los Angeles)
- Geological Mapping
- Downhole Geologic Logging
- Foundation Approval
- Temporary Excavation Approval
LABORATORY, SURVEY & MONITORING SERVICES
LABORATORY, SURVEY & MONITORING SERVICES
LABORATORY, SURVEY & MONITORING SERVICES
- Soils Laboratory Services (Certified In-House Testing)
- Computerized Monitoring of Geotechnical Instrumentation
- Geophysical Surveys
Ready to Move Forward? Let’s Get Started.
Learn How We Can Support Your Project
CONTACT US
818-500-9533
Whether you're planning a residential, commercial, industrial, or public works project, our experienced team is ready to provide practical geotechnical engineering solutions.
Contact GeoSystems today to request a proposal or speak with one of our professionals.
Geosystems, Inc.
1545 Victory Blvd. 2nd Fl., Glendale, California 91201, United States
EMAIL US: info@geosys1.com Fax: 818-500-0134 LICENSED PRINCIPALS: Vincent J. Carnegie, C.E.G. 1608 Steve S. Tsai, G.E. 2268
Geosystems, Inc
1545 Victory Blvd., 2nd Fl., Glendale, California 91201, United States
© 2026 GeoSystems, Inc. All Rights Reserved.
Trusted geotechnical services across SoCal.