Serving clients throughout central California for over 60 years, Kjeldsen, Sinnock & Neudeck, Inc. (KSN), provides civil engineering, land surveying, and construction management services from its offices in Stockton and West Sacramento. KSN specializes in the planning, design, construction management and surveying and mapping of public facilities, public works infrastructure, transportation, water, wastewater, flood control, emergency response planning, commercial, industrial, institutional and water resources projects.

Civil Engineering
& Surveying Services

KSN’s highly qualified staff has the experience and qualifications to deliver a broad range of professional services to ensure that our client’s projects are successfully delivered with the efficiency and the attention to detail expected in today’s market. KSN has extensive experience in the successful delivery of large, complex public infrastructure and public facility projects using the design-build delivery method. KSN is a certified California Small Business Enterprise.