DDC as a premier multi-disciplinary consulting firm of Bangladesh has been actively participating in a large number of projects of Bangladesh Government in the field of infrastructure development; urban, rural and regional planning; ports and harbour, railways; bridges; airports; water and sanitation; reconstruction & rehabilitation, institutional development, economic zones; ICT, health, planning, education etc. DDC has successfully completed a large number of projects in different sectors of development including many projects financed by international donor agencies and multilateral development banks such as the World Bank, Asian Development Bank, International Development Association, Japan International Cooperation Agency, DFID and other international organizations. These projects had been or are being carried out either independently or in collaboration with internationally reputed consulting firms resulting in a discernible improvement in the quality of consulting services with the desired emphasis on technical soundness and economic viability.