Find the right engineering partner.

The Integrity of Great Structures Begins with Base.

Portland, ME

Better systems, better places.

Boston, MA+2

Pursuing excellence in sustainable engineering

Portland, OR

Optimal Environments for Life

Portland, OR+8

Elevating acoustical design.

Seattle+1

Sound. Significant. Sustainable.

Vancouver, WA+1

Consistently superior designs.

Portland, OR+4

From any angle

Rockland, MA+6

Environmental consulting with purpose.

Westfield, MA+7

Building Performance: Commissioning & Sustainability Experts

Lakewood, CO+9

Transforming communities, one project at a time.

Portland, OR

Controls and Electrical Engineering

Portland, OR

Creative Civil and Structural Engineering

Portland, OR+2

Full-service consulting engineering specializing in electric utility engineering, structural engineering, civil engineering, land surveying, and GIS.

Springfield, MO+4

Engineering systems that communities depend on.

Ridgefield, WA+3

Providing Exceptional Quality, Service, and Value to Clients and Communities

Portland, ME+1

Defining structural engineering.

Seattle, WA+2

A Small-Team Approach to Big Engineering Challenges

Portland, OR

Service. Innovation. Value.

Seattle, WA+21

Precision. Excellence. Innovation.

Portland, OR

Engineering that matters

Portland, OR+10

Clean Water, Safe Environment, Healthy Communities, Happy People

Portland, ME+24

Mechanical Systems Engineering and Design-Build Mechanical Engineering.

Portland, OR+3

New & Existing Buildings, Energy Management, and Efficiency Programs

Burlington, VT+2