DCI provides civil, transportation and environmental engineering; transportation and site planning; geotechnical; GIS and mapping; and land surveying services to public- and private-sector clients throughout Massachusetts. DCI is the rare smaller firm that can provide most of the services that our clients need under one roof. We complete dozens of small projects every year, but have also served as the lead on some of the most high-profile projects in Greater Boston in recent years. And, while we deliver many different services on projects of all sizes, we retain our small-firm culture of personal service and a client-first attitude.