70 Years Of Innovation
Engineering Solutions, Shaping Communities
At Siegfried, every project is an opportunity to solve challenges in a way that works for our clients and the communities they serve. With expertise in civil engineering, structural engineering, geotechnical engineering, surveying, landscape architecture, and partnering and public outreach, we take a collaborative approach to bring ideas to life. For 70 years, we’ve been turning complex problems into practical, lasting solutions— blending creativity with technical know-how to design spaces that are both functional and meaningful. Every client’s needs are unique, and we’re here to help navigate the process with experience, insight, and a commitment to getting it right.

San Carlos Fire Station No. 16
San Carlos Fire Station No. 16

Mountain View Community Center
Mountain View Community Center

UC Davis Health, Modular Sports Court
UC Davis Health, Modular Sports Court

UC Davis, Wyatt Deck & Pathways
UC Davis, Wyatt Deck & Pathways

UC Davis, Coffee Center