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Founded in 1898, Twining has built a distinguished history and a reputation for excellence. Over the years we have provided sound engineering, testing, and inspection for many of the region's landmark projects. In the end, we are evaluated on the safety and durability of the structures we test inspect.
5027 Commercial Circle, Suite G
Concord, CA 94520
Construction Engineering & Structural Engineering
1806 Belles Street, Ste. 11B
San Francisco, CA 94129