About Us

At Geotechnical & Environmental Services, it is our mission to make our clients successful by taking the time to understand their expectations and then meet or exceed those expectations.  

We accomplish this through our vision to be a premier professional organization in the western United States where the best people in our profession want to work while consistently meeting profitability targets.

founded in 1992

GES was founded in 1992 by Nevada born Greg DeSart who still owns and manages the firm. Today, our company has three offices and can service the entire state of Nevada and surrounding states, with the help of sister company, Eagle Drilling Services.

Building Our Team

We have worked diligently over the past 30 years to build our team and our qualifications.  Our company culture and core values are built upon a solid foundation of Respect, Courage, Honesty and Humility, while keeping our focus squarely on Safety. As a result, our team is personable and confident, with a high level of integrity and the quiet confidence that comes with decades of experience.  We are a top-rated engineering company as ranked by many of the state’s municipalities,  and government entities, and prequalified to perform work by entities around the state.

Accredited Laboratory

Our laboratory is Accredited by the American Association of State Highway and Transportation Officials (AASHTO) and complies with internationally recognized ASTM standards.  A lab with AASHTO accreditation is held to high technical standards.  GES has proudly been AASHTO Accredited for three decades.

Nevada native

Nevada is our home.  This is why we are passionate about being active members of our community.  Whether it is lifting up a family on Extreme Makeover Home Edition, helping our children get better educations, or serving our environment by cleaning the Truckee River Meadows, our coworkers regularly contribute to making Nevada a better place to live.