Optimum Seismic, Inc., is Southern California’s leading retrofit company for earthquake retrofit engineering and construction, specializing in multifamily and commercial buildings. Since 1984, the team at Optimum Seismic has completed more than 2500 retrofits on a variety of buildings throughout the state of California, including structural infrastructure such as highway bridges.

Optimum Seismic features expert design, steel fabrication and construction for all retrofit options. Our in-house team has decades of experience working with clients to customize programs that match their goals and needs. We blend today’s needs with future possibilities to engineer an optimal retrofit solution.