GDG's principle areas of service are Infrastructure, Renewables, Offshore and Marine, Structures  and Research and Development. 

GDG is actively involved in a diverse range of international projects including major civil infrastructure projects, harbours/marinas, development of offshore oil/gas fields, onshore and offshore windfarms, commercial structures and basement design. Our clients include large civil and building contractors, project developers and engineering consulting firms. We also offer forensic engineering and expert witness services to the insurance and legal sectors.