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
Geotechnical Engineering and Geotechnical Site Investigation.

Premier Construction Testing and Engineering in the St. Louis Metro Area and Southern Illinois
O'Fallon, IL+1
Geotechnical Engineering and Phase I Environmental Assessments.
St. George, UT

Structural Design and Retail and Office Buildings.
Sacramento, CA

As in real life, complex engineering designs demand a pragmatic approach.
North Augusta, SC+1

Our Services. Your Success.
San Diego, CA+1

Special Inspections and Provides Comprehensive Structural.
Vancouver, WA+1

Civil Engineering and Water / Wastewater.
Eureka, CA+6

Structural Design and Analysis and Building Information Modeling.
Tulsa, OK+3
Multi-Disciplinary Consulting Firm

Your Trusted Partner in Quality Control & Geotechnical Solution
Sterling, VA

Consulting engineering and special inspections
Greensboro, NC
Your Structure. Our Solution.
Philadelphia, PA+1

High-Quality Engineering Solutions Customized to Fit Your Project
Commerce City, CO+1

Structural Engineering and Research.
Roselle Park, NJ
Quality Matters
Manassas, VA

Innovative, Economical Solutions. Exceptional Client Service.

Full-Service Geotechnical and Construction Materials Testing
Mobile, AL

Geotechnical Engineering and Post-Tensioned Concrete.
Westerville, OH+2

Structural design, special inspections, and code compliance services in New York and New Jersey
Elizabeth, NJ

Geotechnical Engineering and Subsurface Exploration and Sampling.
Delray Beach, FL+4
Construction Materials Testing and Concrete Field Testing.
Tempe, AZ+1

Sustainable Solutions
Herndon, VA