GIS was founded in 1948 with an emphasis on boat repairs. Since its inception, GIS's mission has been to provide optimum services at a resonable cost. Through the years, GIS has continued to grow based on its original business philosophy. GIS has expanded into being a service-oriented company that provides a full range of construction services, including full service fabrication facilities that include pipe and structural; onshore and offshore painting; offshore, onshore and plant construction and maintenance operations; environmental that includes tank cleaning and hazardous materials remediation; and heavy equipment, dirt and aggregate sales, delivery and placement, excavation, clearing, foundations and civil. GIS also provides ASME coded; contract labor; drafting; fabrication, piping and structural detailing; hazwoper service; material management; pipe and structural dimensioning; and project management.