SAMAJIK UNNAYAN SANGSTHA (SUS) is a Non-profit, humanitarian and voluntary organization that is established in 1986. Since the early beginning of SUS, it has been working for neglected and deprived people carrying with elongated experience on some specific social issues such as- Education, promote human rights and good government, Women Empowerment, Capacity building, Livelihood Improvement, Gender Equality, Agriculture Development, and Development of Person with disabilities, Health, Water & Sanitation, Education, Disaster Mitigation & Management and social forestry. Basically, SUS intended to involve women, children, Gypsy community and disable people in myriad development practices where they would undergo equal opportunities, mobility and dignity in an equitable society.

Thinking about such beliefs and expectations, at the outset, it started to work Kumarkhaly Fishermen groups, Gypsy community, disadvantaged women & Children and people with disability. So, SUS established school for children with disability, formed women group for strengthening women group and adopted programmes for poor and disadvantaged people in order to promote and transform their lives so that they could lead a life of dignity in the society. And finally on 5th January 1986 saw the birth of the organization in name of SUS at Union- Dhapdopia, Upazila-Nalchity of Jhalokathi district, as an acronym SUS focused on human rights, women empowerment, child development and equitable society.