Country | Party name | Other affiliations |
Europarty | EU Parliament | International |
Albania | Socialist Party of Albania | PES | N/A | SI |
Andorra | Social Democratic Party | PES | N/A | SI |
Armenia | Armenian Revolutionary Federation | None | N/A | SI |
Austria | Social Democratic Party of Austria | PES | S&D | SI |
The Greens | EGP | Greens/EFA | GG |
Azerbaijan | Civic Unity Party | None | N/A | None |
Belgium | Groen | EGP | Greens/EFA | GG |
Socialist Party | PES | S&D | SI |
Forward | PES | S&D | SI |
Bosnia and Herzegovina | Alliance of Independent Social Democrats | None | N/A | None |
Social Democratic Party | PES | N/A | SI |
Bulgaria | Bulgarian Socialist Party | PES | S&D | SI |
Croatia | Social Democratic Party of Croatia | PES | S&D | SI |
Cyprus | Democratic Party | None | S&D | None |
Movement for Social Democracy | PES | S&D | SI |
Czech Republic | Czech Social Democratic Party | PES | S&D | SI |
Denmark | Social Democrats | PES | S&D | SI |
Estonia | Social Democratic Party | PES | S&D | SI |
Finland | Social Democratic Party of Finland | PES | S&D | SI |
France | Socialist Party | PES | S&D | SI |
Georgia | Citizens | None | N/A | None |
Germany | Alliance 90/The Greens (part)[A] | EGP | Greens/EFA | GG |
Social Democratic Party of Germany | PES | S&D | SI |
Greece | Panhellenic Socialist Movement | PES | S&D | SI |
Hungary | Hungarian Socialist Party | PES | S&D | SI |
Politics Can Be Different | EGP | No MEPs | GG |
Iceland | Social Democratic Alliance | PES | N/A | SI |
Ireland | Labour Party | PES | S&D | SI |
Italy | Democratic Party | PES | S&D | PA |
Latvia | Harmony Centre | None | S&D | None |
Lithuania | Social Democratic Party of Lithuania | PES | S&D | SI |
Luxembourg | Luxembourg Socialist Workers' Party | PES | S&D | SI |
The Greens | EGP | Greens/EFA | GG |
Malta | Labour Party | PES | S&D | SI |
Moldova | Democratic Party of Moldova | PES | N/A | SI |
Montenegro | Democratic Party of Socialists | PES | N/A | SI |
Social Democratic Party of Montenegro | PES | N/A | SI |
Socialist People's Party of Montenegro | None | N/A | None |
North Macedonia | Democratic Union for Integration | None | N/A | None |
Social Democratic Union of Macedonia | PES | N/A | SI |
Norway | Labour Party | PES | N/A | PA |
Netherlands | GreenLeft | EGP | Greens/EFA | GG |
Labour Party | PES | S&D | PA |
Poland | Democratic Left Alliance | PES | S&D | SI |
Palikot's Movement | None | N/A | None' |
Portugal | Socialist Party | PES | S&D | SI |
Romania | Social Democratic Party | PES | S&D | SI |
Russia | A Just Russia | None | N/A | SI |
Liberal Democratic Party of Russia (part)[B] | None | N/A | None |
San Marino | Party of Socialists and Democrats | PES | N/A | SI |
Serbia | Socialist Party of Serbia | None | N/A | None |
Party of Freedom and Justice | None | N/A | None |
Slovakia | Direction – Social Democracy | PES | S&D | SI |
Slovenia | Social Democrats | PES | S&D | SI |
Spain | Spanish Socialist Workers' Party | PES | S&D | SI |
Sweden | Swedish Social Democratic Party | PES | S&D | SI |
Switzerland | Green Party of Switzerland | EGP | N/A | GG |
Social Democratic Party of Switzerland | PES | N/A | SI |
Turkey | Republican People's Party | PES | N/A | SI |
Ukraine | Party of Regions (part)[C] | None | N/A | None |
United Kingdom | Labour Party | PES | N/A | PA |
^A Two of the four Alliance 90/The Greens members sit with SOC. The other two sit with the Alliance of Liberals and Democrats for Europe. ^B One of the four members of LDPR sit with SOC. The other three sit with the European Conservatives Group. ^C Four of the eight members of Party of Regions sit with SOC. Two sit with the European Conservatives Group and two sit with the Alliance of Liberals and Democrats for Europe. |