GDB is a specialized construction and engineering firm with its central office in Greater Sudbury, Ontario, and undertaking work throughout the province of Ontario and along its borders with Manitoba, Quebec, and United States.

We specialize in the construction and design-build of new/existing infrastructure including heavy civil construction with ability to complete multidisciplinary work such as architectural, electrical, and mechanical installations. The type of work our experienced team focuses on includes rehabilitation and new construction of bridges, dams, culverts, marine facilities, roads, pipelines, water and sewage treatment plants, landfill expansions, in-water work, pile driving and cell closures. We also specialize in remote location projects such as locations accessible by navigable waters and locations requiring temporary construction of living quarters for construction team members.

Our range of clients and projects has allowed GDB to stay up to date on industry standards and specifications. GDB has worked, and does, work with organizations such as OPG, Public Works Canada (PWGSC), Brookfield Renewables, Vale Canada, Department of Fisheries and Oceans, the Ontario Ministry of Transportation, First Nations communities and various municipalities.

We are ISO 9001-registered and quality control is monitored by both internal and external Quality Control experts and experienced staff. We are an environmentally conscious company with a comprehensive Environmental Management Policy. Safety is a top priority at GDB, exemplified by our track record with our existing and current projects. GDB is an Equal Opportunity Employer.