Founded in 2021, JSA Civil was built on a vision of delivering exceptional civil engineering and project management services with a client-first approach. Backed by over 100 years of combined staff experience, we quickly established a reputation for technical excellence and proactive solutions. From our headquarter in Tumwater, Washington, we've grown to serve clients throughout the United States, completing hundreds of projects in commercial, residential, industrial, tribal, and public sectors. Our history reflects a committment to innovation, collaboration, and enduring partnerships that drive long-term success.