At Kjeldsen, Sinnock & Neudeck Inc. (KSN), we offer a wide range of engineering and surveying services, from preliminary planning through operation and maintenance of the completed project. KSN is a full service civil engineering and land surveying firm certified as a Small Business Enterprise (SBE).  KSN specializes in the planning, design, surveying and mapping of public works infrastructure, transportation, water resources, commercial, industrial, and institutional projects. The services that KSN provides allow us to be flexible and enable us to work as a prime consultant or as members of a Design/Build team. Our extensive history in the Central Valley places us in the unique position of having participated in the overall development of many sites from initial construction to recent improvements and expansions. 

KSN offers the following services:

Civil Engineering

Surveying and Mapping


Grant Assistance


San Joaquin County Sheriff's Administration Center and Jail Complex