Find the right engineering partner.

The Integrity of Great Structures Begins with Base.

Portland, ME

Precision. Excellence. Innovation.

Portland, OR

Creative Solutions for Complex Natural Resource Challenges

Santa Cruz, CA+1

Transforming how communities move

Orlando, FL+30

to design and engineer systems that are safe, reliable and maintainable.

Portland, OR

Empowering the Pacific Northwest with Equitable Energy Solutions

Portland, OR

Problem solvers, driven to create a safer, more resilient built environment.

Portland, OR+6

Consistently superior designs.

Portland, OR+4

Mechanical Engineering and HVAC Design.

Portland, OR

Mechanical Systems Engineering and Design-Build Mechanical Engineering.

Portland, OR+3

Better systems, better places.

Boston, MA+2

Elevating acoustical design.

Seattle, WA+1

Traffic Engineering Design and Traffic Signal Operations and Design.

Portland, OR

Environmental Remediation and Water Resources.

Seattle, WA+8

Control Systems Engineering and Custom Panel Design.

Portland, OR

Inspiring Solutions Emerge From An Integrated Approach

Auburn, ME+3

Full-Service Airfield Design, Airport Planning, and More

Portland, OR

Buildings That Work | Empowering Client Success

Portland, OR+4

Mechanical Engineering and Plumbing Engineering.

Portland, OR

Passionate About Our Work. Passionate About Our People.

Tucson, AZ+8

Engineering, Design & Construction Services, Plus Advisory and Grant Support

Portland, OR+4

Creating Tomorrow, Together.

Jacksonville, FL+73

Building a better future through innovative solutions

San Francisco, CA+9

Innovative and creative structural solutions

Los Angeles, CA+1