Leigh + O'Kane
A structural engineering firm focused on solving complex challenges through collaboration, responsiveness, and dependable execution.
Lee's Summit, MO
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A structural engineering firm focused on solving complex challenges through collaboration, responsiveness, and dependable execution.
Lee's Summit, MO
Building a better future through innovative solutions

Civil, Structural, and Architectural Design with a Builder's Perspective
Grass Valley, CA+1

Engineered with Precision. Led with Purpose.
Lake Mary, FL

Let's Create Your Legacy
Birmingham, AL+2

Construction Engineering and Temporary Support Systems.
Watertown, CT+1
Professional civil engineering and land surveying services in the Northern Plains
Dickinson, ND

Our Multi-Disciplined Teams Work Side-by-Side with Cities, Counties, Water Agencies, Sanitary and Transit Districts.
Oakland, CA

Traffic & Transportation and Construction Engineering.
Allentown, PA
Civil Engineering and Surveying across the Dakotas and Montana
Bismarck, ND+8

People-Driven Engineering for Illinois, Indiana & Michigan

Innovative structural and composite carbon fiber engineering solutions since 1958
Scottsdale, AZ
Peace of mind, engineered
Salt Lake City, UT+1
Committed to Outstanding Quality and Cost-Effective Services
Germantown, WI

Professional civil engineering services from conception to concrete
Bethany, OK
Over 50 Years of Excellence in Professional Engineering Services
Birmingham, AL+4

Serving clients Ethically, Responsively and Professionally
Dixon, IL+8

Engineering with Excellence
Dublin, OH

Fear No Challenge
Portersville, PA

Large-Firm Resources. Personal Attention.

Shaping the Quality of Life - Together
Richfield, UT+10

One Vision. Shared Future.
Cedarburg, WI+2

Road and bridge construction engineering
Grand Rapids, MI+2

We Know Buildings!
Avondale, AZ+1