SATU is an acronym of Social Advancement Through Unity –a Non-Government, Non-political and Non-religious Organization was founded in 1991 with a view to overall develop the poor, socially ignored and destitute families in Delduar Upazila under Tangail district.
SATU got its registration under the Directorate of Social Service; Government of Bangladesh in 1992. At the initial stage, SATU started with consciousness rising on personal and environmental hygiene, early marriage, education, human rights and use of local resources, safe drinking water and sanitation. Subsequently, it has given strong emphasis on staff capacity building and effective management Gradually, SATU became a recognized NGO in Tangail through which its comprehensive programs and activities. SATU's activities began to expand from Unions to Upazila, Upazila to district and subsequently the entire division. As a result, it attracted the donor agencies and Government of Bangladesh and praised by them to undertake, design and implement integrated development programs for the betterment of the poor, vulnerable, destitute and disadvantaged families especially for women and children. With the registration of NGO Affairs Bureau in 1993 under the foreign donation rules and regulation, SATU began to implement programs supported by international donors. Subsequently, SATU became a very well known organization and its programs and activities began to expand further. Within a short span of time, SATU developed into member of a number of NGO networks in Bangladesh and abroad.