Find the right engineering partner.

A Texas-based water resources and environmental engineering firm with a steadfast commitment to customer service, innovation, and delivering quality solutions.

Find your Decisive Advantage

No Job is Too Big.

Milwaukee, WI+10

A Full-Service Firm for All Your Project Needs

Creating a more sustainable future.

Watertown, MA+6

Ingenuity, Integrity, and Intelligence.

Our People. Your Success

Cary, NC+8

Client Focused.

Houston, TX+4

Your Single Source

South Bend, IN+1

Client-Centric Strategy | Collaborative Results | Civil Engineers

Durant, OK

Shaping a safe, sustainable, and equitable future.

Rockville, MD

Aviation and Transportation.

Engineering, Project Management, Land Surveying, Environmental and Field Services

Holland, MI+1

Engineering With a Cause

Sacramento, CA+9

National Presence. Hyper-Local Focus.

Williamsport, PA+17

World Class Engineering Services

Grand Junction, CO+2

Innovative Solutions to Strengthen Communities

Rogers, AR

Designing National-Scale Infrastructure Projects

Transforming communities, one project at a time.

Portland, OR

A Different Approach to Architecture + Engineering

Bloomington, MN+17

Our work moves people. Our people move us.

Philadelphia, PA+15

Great Projects Start Here

Norcross, GA+1