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

Consulting | Assessment | Analysis | Design

Engineering Excellence Built on Experience.
Greenville, MI+2

Water Systems and Drinking Water.
La Grande, OR+4

Kansas City Structural Engineering Firm
Lenexa, KS
Engineering and Consulting Since 1974
Wall, NJ

Solutions for the Built World
Northbrook, IL+28

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

We build our success by building yours.
Itasca, IL+1

Engineering & Architecture since 1946
Alpena, MI+1
Helping You Prosper
Raleigh, NC+11

Delivering expert solutions for your commercial, residential, and specialty structure needs.
Boulder, CO+2
Designing Innovative, Constructable Solutions for Challenging Environments
Anchorage, AK+7

Let's Create Your Legacy
Birmingham, AL+2

Surveying, civil engineering, and construction services across Indiana and Ohio since 1930.
Marion, IN+3
Nationwide Leader in Structural & Construction Engineering
Colorado, CO

Bridge Engineering and Design.
Metairie, LA

Water Resources and Community water and sewer design.
Somers, MT
Strength You Can’t See, but Can Always Trust
Queens, NY

Providing Structural & Geotechnical engineering services since 1968
Syracuse, NY

Responsive People. Creative Solutions.
Baltimore, MD

Land Surveying and Property Boundary Survey.
Essex, VT

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

Aim for the Stars. Return to Earth. Use Rock Solid Principles.
Overland Park, KS