All moving forward together.

We’ve created a geotechnical firm that helps our
employees and our clients reach their goals.

It’s why we exist.

Contact Us

Portland: 503.616.9419
Anchorage: 907.313.3370
Houston: 832.736.4226

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Central Geotech provides a qualified team of geo-experts that offer responsive, cost-conscious, and on-time service across all phases of your project.

Phase 1


Whether the project requires test pits, drilling, Cone Penetrometers, or a surface reconnaissance, we provide services to help understand the soils onsite.

Phase 1

Site Exploration & Soil Data Collection

Geotechnical engineers are normally the first design professionals on a project site.

Drilling, sampling, or testing—we provide services to help prepare your project regarding site soils and foundation design.

Phase 1

• Geotechnical Investigation
• Geotechnical Assessment
• Preliminary Assessment
• Retaining Wall Assessment
• Seismic Hazard Study
• Landslide Hazard Study
• Geological Hazard Area Study
• Infiltration Testing
• Site Walkthrough
• Scoping Meetings

Phase 2

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As part of your design team, we assist other engineering disciplines and contractors by providing the soil parameters for specific project needs.

Phase 2

Clear Analysis and Design Collaboration

With years of experience managing and working with multidisciplinary groups of designers, we become a responsive team member within your design and feasibility phases, providing straight-forward analysis and design assistance — no matter the size of the project.

Phase 2

• Site Specific Seismic Response Analysis
• Seismic Retrofit Design Analysis
• Foundation Design/Construction Recommendations
• Slope Stability (Landslide) Analysis/Remediation
• Retaining Wall Alignment/Construction Recommendations
• Underpinning and Structural Support Recommendations
• Pavement Design
• Review of Design Documents
• Soils Laboratory Testing (Classification, Parameters)

Phase 3


Representing the owner and ensuring design intent, we are onsite to provide special inspection, construction observation, and compaction testing during construction.

Phase 3

Capable Construction Testing and Observation

Typically representing the owner or developer and ensuring design intent, we operate onsite alongside your General Contractor to provide special inspection, construction observation, and compaction testing during construction.

Our expert field staff are outfitted with mobile, tablet-based reporting, nuclear densometers, and dedicated company vehicles to speed reporting time.

Our in-house soils laboratory helps to accelerate required testing turnaround so site work never has to endure unwanted delays.

Phase 3

• Soils Laboratory Testing (Proctor)
• Compaction Testing
• Asphalt Testing
• Subgrade Evaluation
• Construction Observation
• Field Observation Reporting

Integrity, Duty, and Respect. Just what you would expect from a Service-Disabled Veteran-Owned Business.

Central Geotech is CVE Verified as a Service-Disabled Veteran-Owned Small Business (SDVOSB). We are also COBID Certified in Oregon as both a Service-Disabled Veteran-Owned Business Enterprise (SDVBE) and an Emerging Small Business (ESB).

We have teamed with some great colleagues on Federal and Local Government projects. Find out how we can help your bids become more attractive during the source selection process!

Team With Us

Featured Projects

We perform geotechnical work for large projects and small—both in the private industry and in the Public Sector. Explore some of our featured projects in each market segment below to see some good examples of our ongoing accomplishments.

Download our Capabilities Statement with service and experience information.

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Serving All Markets

Central Geotech operates in all market segments. Our projects range from multi-year Federal Design-Build, multi-story commercial, transportation, or even single-family residential.

Explore some of our highlighted projects in our portfolio by clicking on the links below.

Our Customer Testimonials

“Needed a soil investigation and Geotechnical Report fairly quickly as well as construction monitoring for some urgent work. Central Geotechnical Services took care of everything I needed to help expedite the permit process as much as possible, was there monitoring the work and has helped me get permits closed out. I will definitely enlist them on future projects.”

Brad Neu, Catworks Construction

“Stephen and Erik were very gracious with sharing information and assisting me with critical information regarding the process and findings. This became valuable as I shared detailed information with my senior leadership. It has been a pleasure to work with such a professional firm and I will recommend them to others.”

Matt T., Oregon Metro

“Great to work with, got the proposal back in a timely manner. Executed work on schedule and were able to adjust power plant schedule. Were able to discuss options with the owner and backup items with a clear report that was well done.”

Brad Sisson, Oregon Electric Group

“Stephen, Paul and the rest of their staff continue to provide excellent service and have been very responsive to project demands. Looking forward to more projects with Central Geotech.”

Chuck Gregory, AKS Engineering and Forestry

“Great firm to work with; smart, collaborative, and customer-oriented.”

Brendan Geraghty, Blue Trident

“Central Geotech professionally performed the required scope for one of our projects last year, and I refer other developers to them often. Their responsive staff and practical approach to complicated situations is outstanding. I wish I had found them sooner in my career--what a great firm!”

Joe Green, Grun Homes

“Stephen helped me with pre-buy inspection of house in the West Hills. His opinion is as valuable or more vs regular inspection. Very thorough and generous with his time even after our inspection was complete.”

Harvey L., Homeowner

We've Performed Work From Alaska to Afghanistan.

10240 SW Nimbus Ave.
Suite L6
Portland, Oregon 97223
(503) 616-9419 Icon image for info More Info

1401 W 34th Ave
Suite 200
Anchorage, Alaska 99503
(907) 313-3370 Icon image for info More Info

Get In Touch

Feel free to drop us a line. Be sure to include details about your project. We typically answer website inquiries within 24 hours.

We serve a variety of clients and markets.