The core membership of the GPPAC network is comprised of regional and international civil society organisations and networks involved in conflict prevention and peacebuilding activities. Wherever possible, the network engages in active partnerships with individual governments, intergovernmental organisations, private sector associations and other relevant bodies to pursue conflict prevention and peacebuilding activities.

GPPAC is structured through fifteen regional networks, each of which has a Regional Secretariat and a Regional Steering Group, which often consists of all the organisations that have been chosen to act as National Focal Points in the region. The global network is supported by a Global Secretariat, the European Centre for Conflict Prevention (ECCP), which is located in The Netherlands.

Together with the fifteen Regional Secretariats and the Global Secretariat, three non-regional members (World Vision International, the Folke Bernadotte Academy and the World Federalist Movement-Global Policy Institute) form the International Steering Group (ISG), which meets once or twice a year. Four members are elected by the ISG to serve a two year term on the GPPAC Executive Committee, which is empowered to make decisions between meetings of the full ISG, but remains accountable to the ISG for any action taken.

For a full overview of the network's governance structures, please download the GPPAC Charter.