North America’s Leader in Geohazard Mitigation

GeoStabilization International delivers rapid, engineered solutions for landslides, rockfall, and other geohazards, keeping infrastructure open and safe. With patented technologies, 24/7 response, and our design/build/warranty model, we restore stability quickly and reliably.

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Solutions

We deliver turnkey solutions to stabilize slopes, protect infrastructure, and prevent future failures:

  • Earth Retention – Retaining walls, soil nails, and GCS® walls for slope and excavation support.

  • Emergency Response – Rapid repairs for landslides, rockfalls, scour, and more.

  • Foundations – Micropiles and anchors for challenging soils and tight access.

  • Ground Improvement – Grouting and drainage to strengthen soils and control water.

  • Rockfall Mitigation – Scaling, mesh, and barriers to contain or redirect debris.

  • Bridges – Scour protection and deep foundation support for long-term stability.

Soil Nail Launcher installing nails on a roadside slope.
Collapsed roadway with guardrail damaged by a landslide exposing soil beneath.
Drill rig installing soil nails into a shotcrete-covered slope beside a road.
Worker operating orange drilling equipment for grouting on a muddy construction site.
Rock slope alongside roadway secured with rockfall mesh and bolts.
Bridge abutment stabilized with shotcrete and retaining wall beneath roadway.
Soil Nail Launcher installing nails on a roadside slope.
Collapsed roadway with guardrail damaged by a landslide exposing soil beneath.
Drill rig installing soil nails into a shotcrete-covered slope beside a road.
Worker operating orange drilling equipment for grouting on a muddy construction site.
Rock slope alongside roadway secured with rockfall mesh and bolts.
Bridge abutment stabilized with shotcrete and retaining wall beneath roadway.
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Expert Solutions. Proven Results.

Technology

We pair proven engineering with proprietary tools and equipment to deliver faster, safer, and more effective solutions.

  • Soil Nail Launcher™ – Fires nails up to 250 mph for immediate slope stabilization with minimal disruption.

  • Shotcrete – Robotic or manual sprayed concrete to reinforce slopes and retaining walls.

  • Spider Excavators – All-terrain walking rigs that work on slopes up to 50° without costly access roads.

  • RailJET® – Specialized system for rail-adjacent and limited-access stabilization.

  • Horizontal Drains – Rapid drain installation to relieve groundwater pressure and stabilize slopes.

  • Micropiles – High-capacity, small-diameter foundations for restricted or unstable ground.

Talk to Our Team

Excavator-mounted drill installing soil nails into a steep grassy slope.
Excavator applying shotcrete to stabilize a roadside slope.
Spider excavator operating on an extremely steep rocky mountainside.
Worker operating RailJET drilling equipment on a railroad track.
Water flowing from a horizontal drain installed in an exposed slope.
Excavator-mounted drill installing soil nails into a steep grassy slope.
Excavator applying shotcrete to stabilize a roadside slope.
Spider excavator operating on an extremely steep rocky mountainside.
Worker operating RailJET drilling equipment on a railroad track.
Water flowing from a horizontal drain installed in an exposed slope.
Worker suspended by ropes drilling into a rock face above a quarry.

Industries We Serve

We work with owners, agencies, and contractors across North America to protect infrastructure from geohazards.

  • Transportation – Slope stabilization, scour mitigation, and rockfall protection for DOTs, railroads, and municipalities.
  • Mining & Quarries – Highwall stabilization, scaling, and haul road protection without disrupting production.

  • Energy & Utilities – Foundations, slope reinforcement, and scour protection for pipelines, substations, and renewable projects.

  • Commercial & Industrial – Retaining wall repair, soil stabilization, and erosion control for private developments.

  • Municipal & Government – Scalable mitigation for public works, parks, and civic infrastructure.

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Shoreline Stabilization working in a river

Why Choose GSI

 

  • 9,000+ Projects – North America’s most experienced geohazard contractor

  • Multidisciplinary Team – Engineers, geologists, operators, and rope-access experts

  • Emergency Response – Rapid mobilization nationwide

  • Design/Build/Warranty – One partner from design to completion

  • Proven Safety – Award-winning safety standards and training

Engineered Design Build Solutions

Bid Build
Project Partner

OUR PROCESS

Design/Build Solutions

Our design/build solutions are customized to the varying demands and site constraints of each geohazard we encounter. Every project that we take on is completed with one goal in mind: always provide the best value.

STEP 1

ASSESSMENT

No-obligation site visit by a qualified geotechnical engineer.

STEP 2

ANALYSIS

Fixed-cost proposal developed from available geotechnical and site visit information.

STEP 3

DESIGN

In-house engineering team assists or completes the design.

STEP 4

INSTALLATION

Rapid emergency response across the U.S.; designs optimized in real time.

WARRANTY

Multi-year performance warranty covers materials, installation, and overall system performance.

WARRANTY

Multi-year performance warranty covers materials, installation, and overall system performance.

Bid Build Process

 

Site Assessment

Detailed analysis of ground conditions, risks, and challenges for accurate planning.

Strategic Planning

Tailored stabilization designs that boost efficiency and reduce risk.

Transparent Communication

Clear updates and open dialogue from start to finish.

Quality Results

Safe, durable solutions built with proven methods and materials.

Safety-First Solutions

We're proud to be recognized for exceeding safety Standards

 

  • Zero-compromise approach in high-risk environments

  • Emergency response plans practiced on every site

  • Continuous training for all crews

Recipient of the ADSC and AGHP Safety Awards and Gold Shovel Standard Certified

ADSC Safety AwardGeoHazard Professionals Safety Recognition Gold Shovel Standard

Construction crew in safety vests and hard hats gathered for a roadside safety briefing.

Client Reviews

Geohazard Mitigation for Transportation in the Mid-Atlantic

Hey Jennifer,

I just wanted to say how much I enjoyed working with you guys on [our project]. Under the circumstances with that big of a job, and traffic volume that was being detoured it was a little stressful, however you all were so easy to work with, it made my job easier! Just wanted to thank you and Ryan for keeping me informed weekly and sometimes daily. Sara did an amazing job with the drill pattern and the engineering side of things. Kyle is one of the best superintendents I have worked with, he is good to his guys and got a lot of work done due to his ability to plan ahead and coordinate. Great experience for me and I really enjoyed working with you all, looking forward to our next job sometime. Please let everyone on the crew know that I really appreciate all their hard work, pleasure meeting everyone!

THANK YOU!”

Geohazard Repair in Kentucky

GSI, thanks for another successful project. It is always nice to work with you and your field crews. We are currently experiencing flooding here in [this area], so I am sure we will be utilizing your services once again in the near future. The repair was “headache free” and that is very nice, to have a company and crew, come in do their job. You would be surprised how many contractors come in and are not as safety oriented and headache free as yours and for that reason, I am writing this email to let you know as a manager I appreciate the professionalism.

Professional Project Support in British Columbia, Canada

I am writing this email to let you know that we are honored to work with GSI and your subcontractors as you have all demonstrated professionalism since your very first involvement of the project. Everyone on the project team is highly experienced, efficient and motivated. We also appreciate your professional work and your prompt response to our inquires. We understand that it is a project and a project site with many unique challenges. Many thanks again!

GET IN TOUCH

Contact Us Today

If you are interested in a no obligation site visit to determine if our services fit your geohazard mitigation needs, call us at 855.579.0536 or fill out our contact form.

855.579.0536

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    A spider excavator drills into a steep hillside above a lake under cloudy skies.