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Leigh + O'Kane

A structural engineering firm focused on solving complex challenges through collaboration, responsiveness, and dependable execution.

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About the firm

Leigh + O'Kane is a Kansas City-based structural engineering firm founded in 1986 and serving clients across the metro and beyond. It partners with architects, owners, and contractors on a wide range of building types including civic, commercial, education, public safety, sports, healthcare, senior living, and zoo facilities. With structural systems spanning wood, steel, masonry, and concrete, LEOK has completed over 2,000 projects while earning a reputation for responsive communication and reliable execution.

Established
1986
Team
Small
Firm type
Structural Engineering

People

Amanda BushPrincipal and Owner

Adam O'KanePrincipal, P.E.

Wayne HessDirector of Engineering

Capabilities

Structural Design

Service website

Thoughtful and efficient structural design solutions - collaborating early, communicating often, and engineering safe, buildable, cost-effective systems that support architectural vision.

  • New Building Structural Systems
  • Construction Engineering

    Shoring design, temporary bracing, field fixes, and real-world problem solving to keep construction on schedule.

  • Special Inspections

    Certified inspections for critical structural components, verifying installations match the approved design.

  • Material Testing

    Confirmation that concrete, steel, masonry, and other structural materials meet project requirements.

Structural Investigations

Service website

Clear, practical investigations that identify the cause of structural distress and outline straightforward solutions an architect and owner can trust.

  • Condition Surveys

    Thorough documentation of what is working, what needs attention, and what improvements will keep the structure safe and serviceable.

  • Seismic Reviews

    Seismic evaluations and retrofit recommendations aligned with current codes and life-safety design.

  • Peer Reviews

    Independent evaluation of structural systems for code compliance, constructibility, and clarity.

Feasibility Studies

Service website

Evaluation of loads, materials, code requirements, and cost impacts to support confident design decisions early in the process.

Industries

Public Safety · Government · Education · Healthcare · Commercial · Sports & Recreation · Senior Living · Multifamily Residential · Residential · Parking · Transportation · Historic Preservation

Projects