Founded in 1992, DSI is a leading commercial general contractor in Chicago, IL. DSI has been providing quality construction services for our clients for over 26 years, and we are experienced in all types of construction, including office, industrial, retail, education, banking, and healthcare facility projects. Our principals, with roots in architecture, commercial real estate and construction management, established the firm based on three key fundamentals: approach every project from our client's point of view, deliver on our promises and provide unmatched customer service. These goals have provided a foundation which keeps our clients returning again and again.