JSA Consulting Engineers/Land Surveyors, Inc

JSA is a civil engineering and land surveying firm based in Sioux Falls, South Dakota. Established in 1984, the company offers a range of services, including design and planning for infrastructure projects, land surveying, and construction administration. JSA serves clients in South Dakota, Minnesota, and Iowa, leveraging its experienced team of engineers, surveyors, and technicians to deliver practical, cost-effective solutions.