This report takes stock of the OECD’s thirteen years of experience working with civil society to fight corruption. The important contribution civil society organisations have made to the process which led to the adoption and implementation of the Convention is acknowledged and several lessons are drawn from this rich experience. This work also underlines the irreplaceablerole civil society can play in non-member countries’ initiatives against corruption. It shows how the anti-corruption initiatives developed with nonmember countries contribute to strengthen the role played by civil society actors.