William Simpson & Associates, Inc.

6512 Hampton Inn

WILLIAM SIMPSON & ASSOCIATES, INC. has been providing Structural Engineering Services to our clients since 1957.  Our practice is built on technical excellence, creativity, dependability, and long-term relationship.  We are proud of our position in the Engineering-Construction industry, and welcome you to our website.


Irvine Spectrum

Irvine Spectrum

Our mission is to provide outstanding structural engineering design and related professional services. We simply strive to be the best at what we do.

Cliff Drive Rendering

In response to the constantly increasing demand by the clients for structural design in Revit, William Simpson & Associates has proudly completed several projects using Autodesk Revit Structure software. We are strong believers in the value that pre-construction coordination in a 3D virtual setting can provide to our projects and our clients. Understanding that the use of 3D design tools goes far beyond modeling expertise, we gain efficiency as we gain experience. This makes our design one of the most complete, well-coordinated and cost effective in the industry.

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