EANNASO is a regional network of national networks of Civil societies and community-based organizations in seven Eastern Africa Countries, namely: Kenya, Uganda, Tanzania (including Zanzibar), Rwanda, Burundi, Ethiopia and Southern Sudan. EANNASO secretariate is based in Arusha, Tanzania. Arusha is also the centre for the East African Community (EAC), currently the fastest growing Regional Economic Community.

History of EANNASO
The Eastern Africa National Networks of AIDS Service Organizations (EANNASO) evolved from the AIDS NGO Network in East Africa (ANNEA). ANNEA was a network of NGOs/CBOs from Kenya, Uganda and Tanzania formed in 1994 to network, share experiences and have a single advocacy voice on HIV & AIDS issues in East Africa.

EANNASO has tapped into regional and international expertise to empower the Civil Society in effectively contributing to the reduction of new HIV infections, through strengthening institutional and programmatic capacities, promoting sharing of experiences, best practices and identifying priorities of CSOs.