ABOUT JIS JIS, an Industrial Engineering and Construction Company, is a total solution provider for our clients. JIS provides engineering, procurement, construction management and turnaround ( TAR ) assistance solutions in multiple industrial markets. We treat all of our employees and vendors as we do our clients. This shows in our work product and relationships we have built with our vendors. JIS is recognized in the refining and gas processing industries for our complete sulfur capabilities and expertise with sulfur processing. JIS uses the latest in 3D design tools to perform detail engineering. Our understanding of 3D engineering and its value to our clients has streamlined our complete engineering process. Our clients have become part of our engineering process by utilizing virtual tours before final drawings are issued for construction.