The Tanzania Association of Non Governmental Organizations (TANGO) has been in existence since 1988. The organization started with an initial membership of 22 founder organizations. TANGO has over the years continued to attract new members. Currently TANGO has a membership of 620 NGOs, most of which are regional and district networks that have 50 or more members. This makes the TANGO membership by proxy is an estimated 1500 NGOs.
CHESSORE is a non-governmental organization seeking to improve the beneficial effects of national policy through research. CHESSORE engages in health research and uses the results to influence policy. It also gives training in research skills. CHESSORE follows a participative approach and works at district level together with the local population.
