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Specialties
Civil Engineering
Structural Engineering
Landscape Architects
Surveying
History
Established in 1955.
Founded in 1955 by Robert W. Siegfried, Siegfried is the largest multidisciplinary engineering, surveying, and design firm based in San Joaquin County that provides professional services in civil engineering, structural engineering, surveying, planning, and landscape architecture. The firm is currently headed by Anthony J. Lopes, President, and Paul J. Schneider, Vice President.