
Hillis-Carnes Capitol Services, PLLC
Geotechnical, environmental, and materials engineering from the roof to the ground
Washington, DC
Explore capabilities, project experience, and office locations to build your shortlist.

Geotechnical, environmental, and materials engineering from the roof to the ground
Washington, DC

Geotechnical Engineering and Subsurface Explorations.

A Greener Tomorrow
Roswell, GA

Improving the fatigue life of holes in metal structures
Tukwila, WA
Making Your Project Successful In A Changing World
Bowling Green, KY

Specialized metallurgical engineering, materials testing, and corrosion failure analysis
Idaho Falls, ID

Our Services. Your Success.
San Diego, CA+1
Geotechnical Engineering and Geotechnical Site Investigation.
Tempe, AZ

Client Care. Built on Trust.
Frankfort, IL

Geotechnical, Civil, and Structural Engineering Across California and the Western States
Santa Ana, CA

Building Trust. Shaping Tomorrow.
Eagan, MN

Build Confidently
Towson, MD+1
Civil Engineering and Site Development.
College Station, TX+2

High-Quality Engineering Solutions Customized to Fit Your Project
Commerce City, CO+1

Structural Integrity. Engineering Excellence.
Middleton, WI+4

Engineering and Streets & Roads.
Cape Girardeau, MO
Turning client vision into buildable, cost-effective solutions.

Complete Solutions for Deep Foundation Testing
New Port Richey, FL+1
Geotechnical Engineering and Shallow and deep foundation studies.
O'Fallon, MO

Yesterday's Experience, Today's Quality, Tomorrow's Vision
Monrovia, CA
Critical investigations, testing, analysis, and design for a more certain world
St. Paul, MN+21

Innovative Engineering Solutions for a Dynamic Future
Houston, TX

Serving S. Oregon and N. California Since 1983
Klamath Falls, OR

Building A Solid Foundation Through Excellence
Orlando, FL+2