Since 1974, HEED Bangladesh has been working in the fields of health, education, agriculture, aquaculture, livestock, forestry, environment and natural resource management, biodiversity conservation, disaster management, socio-economic development of marginalized and under privileged people, microfinance, nutrition & hygiene education, water and sanitation, HIV/AIDS, Adolescents, and young reproductive health, rural development, awareness raising, arsenic mitigation, women empowerment, street children, emergency response, heritage preservation, and others.