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Who Are We.

We Are RGH Consultants

A Leading Geotechnical Engineering and Consulting Firm.

a person wearing a white hard hat is holding a hammer

Unlocking the Secrets of the Earth's Foundation: RGH Consultants.

RGH Consultants is a geotechnical engineering and consulting firm. We provide in-depth and insightful analysis to help our clients better understand the ground and materials their projects are built upon. Our team has decades of combined experience working with construction, public works, wineries and more. Whatever the project, we can provide valuable insights.


Our suite of services includes geotechnical engineering, geological services, soils and material testing and special inspection services. We have worked with wineries, dams, and reservoirs as well as hospitals, schools, residences and many other types of buildings. When you need clear and thorough geological insights, turn to RGH Consultants.

Why Work With RGH Consultants?

Over 25 years of experience.

Advanced exploration capability.

Advanced geotechnical laboratory testing capability.

Proven geotechnical engineering experts.

Extensive knowledge of the local construction materials.

AASHTO accredited laboratory.

HISTORY SET IN STONE.

In 1991, Gary Russey, Keith Gregory and Juan Hidalgo founded RGH Consultants. The company name is their last initials combined. Our three founders wanted to offer comprehensive and useful geological and geotechnical engineering services to organizations throughout Northern California. They were quickly able to establish a reputation for excellence and thoroughness.


Today, the RGH family has grown to include many new faces. Additionally, the company now offers additional services such as soils and materials testing in its comprehensive lab. Although the founders have retired, the team’s original commitment to offering rock-solid geological and geotechnical services hasn’t.

a group of people are standing in a soil lab talking to each other

The RGH Promise.

At RGH Consultants, we are committed to offering high-quality, insightful and helpful geological and geotechnical engineering services to our clients. Every construction or public works project needs to be designed with the land it is built upon in mind.

Protecting Northern California’s natural beauty and resources is an important component of this. Today, responsible land development is more important than ever. It helps us to coexist with the environment around us better and preserve the way of life we’ve grown accustomed to in the region. Finding ways to manage the geological impacts of construction is essential to protecting the world around us.
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We are committed to offering high-quality and valuable services to a variety of market sections. We strive to help our clients realize their goals and make their projects as successful as possible.

Additionally, we are dedicated to the success and professional growth of the RGH family. We know that our team members are at the heart of everything we do. It is thanks to the hard work, talent and expertise of our staff that we can provide such effective geological and geotechnical engineering services.

​RGH Consultants strives to be an industry leader in every project we take on. We work hard every day to be the geotechnical engineering and consulting firm of choice in Northern California.

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