Welcome to Johnson Engineering Company
Johnson Engineering Company (JEC) was founded by brothers Robert and David Johnson in 1956.
Presently under the ownership and control of Daniel and Lucas Johnson, JEC is a civil engineering company that is located in southeast South Dakota.
Johnson Engineering Company is focused on providing civil engineering services for its customers with our more than 35 years of professional experience.
Contact us for any civil engineering services.
We can help you get started by creating a scope of services for your project.
Johnson Engineering Company
Established in 1956 with a reputation for being responsive and professional in every project, Johnson Engineering Company continues to this day to focus on providing civil engineering services for its customers.
Johnson Engineering Company is proud to serve you with our combined over 35 years of Professional Engineering experience. We currently staff two licensed Professional Engineers, one of which is also a Registered Land Surveyor. We also staff an Engineering Technician and an Office Manager.