
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

Your Entire Project Life Cycle
Columbus, OH+7

Certified engineering professionals
Asheville, NC

Uniting Principle and Design
Middletown, NY

Creating Sensible, Sustainable Engineered Solutions.
Westerville, OH
Professional civil engineering services with an emphasis on structural and geotechnical engineering

Civil Engineers | Planning, Design, and Permitting Services
Florence, MA

Stream Restoration, Fisheries Ecology & Water Resources

Geotechnical Engineering throughout the Northwest
Spokane Valley, WA+1

Quality Project Solutions
Los Angeles, CA

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

Covering Massachusetts & Rhode Island, we are a leader in civil engineering, land surveying and environmental consulting.
Middleboro, MA+1
Innovative Engineering Solutions
Troy, MI

Creative Solutions…Exceptional Service.
Chester, CT

Municipal civil and environmental engineering
Leesburg, GA

Innovative Engineering and Real World Solutions
Memphis, TN

Civil Engineering and Construction Management and Inspection.
Ferriday, LA+3

Civil Engineering and Land Surveying Services
Tuscaloosa, AL

We Know Water
American Fork, UT+1

Civil Engineering and Environmental Engineering.
Augusta, GA

Water | Wastewater | Stormwater
San Juan, PR
Construction and New construction and sustainment, restoration, and modernization.

Surveying Services and Topographic Survey.
Michigan City, IN

Your Path to Permits
Manchester, NH