DCI a GM2 Company Leadership

David Giangrande, PE, MS


David Giangrande, MS, PE, is a Professional Civil and Transportation Engineer with more than 30 years of experience. He has a wealth of project management expertise at all levels, and clients acknowledge his ability to solve problems and reach practical solutions. He is experienced in a wide range of project types and sizes, having successfully delivered projects ranging in size and scope from relatively simple, small projects to complex, $20+ million dollar full-depth roadway reconstructions for municipal clients.

Stephen Sawyer, PE


Steve is a seasoned engineer with extensive experience working on land development projects throughout Massachusetts and New Hampshire. His portfolio of notable projects includes the award-winning Harris Park in Somerville, the Newburyport Harbormaster Facility and the apartments at 181 Washington Street in Somerville. A graduate of Northeastern University, Steve serves as a strong mentor to DCI’s up-and-coming staff.

Stephen Siragusa, MS


Steve leads the transportation department at DCI and holds a Master’s Degree in Transportation Engineering. He has worked with private investors, local municipalities, and the Massachusetts Department of Transportation (MassDOT). He has been involved in a variety of traffic engineering projects throughout the greater Boston area, including the Hingham Route 3A Corridor Improvement and the Andover Historic Mill District Circulation Study.

Louis Giangrande


Louis has over 35 years experience in the surveying profession, specializing in coordination of field operations and data acquisition. Louis is also a skilled researcher at the Land Court Registries, utility company agencies and institutions and numerous municipalities in Eastern Massachusetts. As a principal and owner at DCI, Louis is responsible for marketing, business development and client relations for survey and other client organizations.