Lisbon
| ARGENTINA | Socialist Party (PS) |
| AUSTRALIA | Australian Labor Party (ALP) |
| AUSTRIA | Social Democratic Party of Austria (SPÖ) |
| BULGARIA | Bulgarian Socialist Party (BSP) |
| CAMEROON | Social Democratic Front (SDF) |
| CENTRAL AFRICAN REPUBLIC | Movement for the Liberation of the Central African People (MLPC) |
| EAST TIMOR | Revolutionary Front for an Independent East Timor (FRETILIN) |
| EGYPT | Egyptian Social Democratic Party (ESDP) |
| EQUATORIAL GUINEA | Convergence for Social Democracy (CPDS) |
| GEORGIA | Georgian Dream Party |
| GERMANY | Social Democratic Party of Germany (SPD) |
| GREAT BRITAIN | Labour Party |
| INDIA | Association for Democratic Socialism (ADS) |
| IRAN | Komala Iranian Kurdistan Party |
| IRAQ | Iraq Patriotic Union of Kurdistan (PUK) |
| IRAQ | Iraq Kurdistan Socialist Democratic Party (KSDP) |
| ISRAEL | Labour Party |
| ISRAEL | Meretz |
| ITALY | Democratic Party (PD) |
| IVORY COST | Cap Union for Democracy and Development (CAP-UDD) |
| KENYA | Labour Party of Kenya (KLP) |
| MALAYSIA | Democratic Action Party (DAP) |
| MEXICO | Party of Democratic Revolution (PRD) |
| MEXICO | Citizens´ Movement |
| MONTENEGRO | Social Democratic Party of Montenegro (SDP) |
| MOROCCO | Socialist Union of Popular Forces (USFP) |
| NETHERLANDS | Labour Party (PvdA) |
| NORTHERN CYPRUS | Cyprus Republican Turkish Party (CTP) |
| NORWAY | Norwegian Labour Party (DNA) |
| PALESTINE | Fatah |
| PHIILIPPINES | Citizens‘ Action Party (Akbayan) |
| PORTUGAL | Socialist Party (PS) |
| REPUBLIC OF THE CONGO | Convergence Citoyenne (CC) |
| SERBIA | Democratic Party (DS) |
| SERBIA | Social Democratic Party (SDS) |
| SPAIN | Spanish Socialist Workers‘ Party (PSOE) |
| SAO TOME AND PRINCIPE | Movement for the Liberation of São Tomé and Príncipe/Social Democratic Party (MLSTP-PSD) |
| SWAZILAND | People’s United Democratic Movement (PUDEMO) |
| SWEDEN | Swedish Social Democratic Party (SAP) |
| SWITZERLAND | Social Democratic Party of Switzerland (SP) |
| TUNISIA | Democratic Forum for Labour and Freedoms (Ettakatol) |
| TURKEY | Republican People‘s Party (CHP) |
| URUGUAY | Socialist Party of Uruguay (PSU) |
| WESTERN SAHARA | Polisario Front |
| ZIMBABWE | Movement for Democratic Change (MDC Renewal) |
| Group of Socialists and Democrats in the European Parliament (S&D) | |
| Party of European Socialists (PES) | |
| Party of European Socialists Women (PES Women) | |
| International Union Of Socialist Youth (IUSY) | |
| Center for American Progress (CAP) | |
| Solidar | |
| United Nations Educational, Scientific and Cultural Organization (UNESCO) | |
| Organisation for Economic Cooperation and Development (OECD) | |
| General Union of Workers (UGT) | |
| Swedish Trade Union Confederation (LO) | |
| Young European Socialists (YES) | |
| S&D Group Secretariat | |
| PS International Affairs Department Staff |
