Gilbane Building Company is a full-service building contractor. Based in Chicago, Ill., it offers an array of services under categories, such as construction, preconstruction, subcontracting services and consulting for clients across various markets. The firm caters to various markets that includes hospitals, health care, higher education, sports, transportation, wastewater, federal/public and corporate. Gilbane Building Company is a part of Gilbane Inc., one of the largest real estate development as well as construction firms in the industry.