About us

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Collaborating to find elegant structural solutions to complex design issues

Committed to Excellence

Nabih Youssef & Associates provides specialized structural and earthquake engineering consulting. Established in 1989 by Nabih Youssef, NYA has grown to be an internationally recognized and respected structural engineering firm with offices in Los Angeles, San Francisco, Irvine & South Carolina. Mr. Youssef is a recognized expert in seismic design and one of the world’s leaders in the field of earthquake engineering.

NYA has engineered high-rise buildings, medical centers, educational & athletic facilities, and has conducted seismic evaluations, historical preservations and strengthenings of major landmark structures. NYA’s significant contribution to the development of earthquake engineering codes & standards, in additin to value-engineering concepts, is coupled with a commitment to engineering quality and performance that has given the firm the ability to provide clients with cost effective, sustainable solutions, and resilient structures.

What We Do

structural design

seismic engineering

performance based design

peer review

due diligence studies

feasibility studies

NYA is proud to be

recognized for excellence

and to contribute to the advancement of the field of structural engineering

View Awards