Sierra Engineering Group

Founded in 1972, California Engineering Contractors is one of the leading heavy construction service providers in the West Coast. It specializes in a variety of public works projects, including seismic retrofit, structure rehabilitation, and railroad, bridge and marine construction. The company also handles flood control and other infrastructure-related projects. California Engineering Contractors work portfolio includes Oakland Bay Bridge Project, Richmond/San Rafael Bridge Project and Presidio Viaduct Project. It operates a fleet of loaders, excavators, cranes, trucks and generators. The company is affiliated with the American Society of Concrete Contractors and the Engineering & Utility Contractors Association. In addition, California Engineering Contractors offers pre-owned equipment and materials.

Shums Coda Associates, based in Pleasanton, CA, is a dedicated team of professionals specializing in Fire and Life-Safety, Structural, Civil, Accessibility, Mechanical, Electrical, and Energy Efficiency plan review services. They serve jurisdictions and government clients across the Western United States, ensuring compliance and safety in various engineering sectors. With multiple offices located throughout California, Arizona, Colorado, Nevada, and Utah, Shums Coda Associates is committed to delivering high-quality consulting and inspection services tailored to meet the needs of their diverse clientele. Their expertise extends to education and certification programs, reinforcing their commitment to excellence in the industry. Generated from the website

Established in 1962, Trayer Engineering Corporation is one of the leading designers and manufacturers of maintenance-free switchgear for electrical distribution system in the United States. Based in San Francisco, Calif., the company s expertise includes underground electrical distribution systems that include submersible vacuum switchgears, padmount vacuum switchgears, disconnect vacuum switchgears and vacuum fault interrupters. In addition, Trayer Engineering Corporation also makes high-speed automatic transfer systems and automated switch controllers. The company has ISO 9001 registered manufacturing facility.