Leigh & O'Kane L.L.C. is a Structural Engineering firm with a wide scope of services and experience. The firm works both as a prime engineering consultant and as consultants to the best architects and engineers in the area. We have been in business in Kansas City since 1986, and have sustained growth by providing excellent structural design and responding to the needs of our clients. Our structural experience has grown to include buildings, bridges, and infrastructure. As a complement to the engineering, we added construction services to our scope of work, including Special Inspections and Material Testing. This provides a further level of quality control for the project. From wood structures to steel, masonry, and concrete, the firm has experience in all materials and all building types. A drive through Kansas City and beyond is a living portfolio of our projects in some surprising places. Everything has changed since 1986: the design process, the codes, the structural analysis software, the drafting, the modeling, and the integration of both, the delivery method of documents and construction, and the speed everything. Everything has changed except the principles of good design: Safe structures Creative solution Economical materials suited for the structure Through Construction Document Good communication and service throughout the design and construction process
| Website | http://www.leok.com |
| Revenue | $5 million |
| Employees | 15 (4 on RocketReach) |
| Address | 250 NE Mulberry St Ste 201, Lees Summit, Missouri 64086, US |
| Phone | +1 816-444-3144 |
| Industry | Civil Engineering, Architecture, Engineering & Design, Construction |
| Keywords | Structural Analysis, Structural Engineering, Structural Drawings, Structural Engineer, Engineering Firm, Engineering Services, Architectural Engineering, Design Engineering, Design Consultant, Building Design, Construction Engineering, Civil Engineering, Building Engineering, Site Engineer, Building Consultant |
| Competitors | Deloitte, PwC, Accenture, EY, KPMG In Pakistan, McKinsey & Company, Boston Consulting Group (BCG), Bain & Company, Oliver Wyman, L.E.K. Consulting +35 more (view full list) |
| SIC | SIC Code 871 Companies, SIC Code 87 Companies |
| NAICS | NAICS Code 54 Companies, NAICS Code 5413 Companies, NAICS Code 541 Companies, NAICS Code 54133 Companies |
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The Leigh + O'Kane annual revenue was $5 million in 2026.
4 people are employed at Leigh + O'Kane.
Leigh + O'Kane is based in Lees Summit, Missouri.
The NAICS codes for Leigh + O'Kane are [54, 5413, 541, 54133].
The SIC codes for Leigh + O'Kane are [871, 87].