Membership of EANNASO is made up of National Networks of HIV/AIDS Service Organisations in the Eastern Africa region; provided that, any National Network of a country falling within the Eastern Africa region is eligible to become a member of EANNASO as stated below:

• ORDINARY MEMBERSHIP: Ordinary members of EANNASO are the National Networks of AIDS Service Organisations who become members in their own right by virtue of being the National Networks in the member countries.

• ASSOCIATE MEMBERSHIP: Associate membership of EANNASO are constituted by regional thematic networks, which apply for and are accepted for membership. Application for associate membership is made in writing to the General Assembly through the Board.

• HONORARY MEMBERSHIP: The Board may extend Honorary membership to corporate bodies, prominent individuals or any other associations in the world who have made a positive contribution regional or otherwise in matters related to HIV/AIDS prevention, care and support.