Editing Party of European Socialists (section)

===Associated members===
{| class="wikitable sortable"
! State !! Name !! abbr. !! [[Member of the European Parliament|MEPs]] !! National MPs
|-
| {{ALB}} || [[Socialist Party of Albania]]<br>{{lang|sq|Partia Socialiste e Shqipërisë}}|| PSS || ||align="left"|{{Composition bar|74|140|#{{wikidata|property|P465}}}}
|-
| {{BIH}} || [[Social Democratic Party of Bosnia and Herzegovina]]<br>{{lang|bs|Socijaldemokratska partija Bosne i Hercegovine}}|| SDP || ||align="left"|{{Composition bar|0|15|#{{wikidata|property|P465}}}}{{Composition bar|5|42|#{{wikidata|property|P465}}}}
|-
| {{BGR}} || [[Party of Bulgarian Social Democrats]]<br>{{lang|bg|Партия Български социалдемократи}}<br>{{lang|bg|Partiya Bulgarski Sotsialdemokrati}}|| PBS ||align="left"|{{Composition bar|0|17|hex=#{{wikidata|property|P465}}}} ||align="left"|{{Composition bar|1|240|#{{wikidata|property|P465}}}}
|-
| {{ISL}} || [[Social Democratic Alliance]]<br>{{lang|is|Samfylkingin}}|| Samf. || || align="left"|{{Composition bar|15|63|#{{wikidata|property|P465}}}}
|-
| {{MDA}} || [[European Social Democratic Party]]<br>{{lang|ro|Partidul Social Democrat European}}|| PSDE || ||align="left"|{{Composition bar|0|101|#{{wikidata|property|P465}}}}
|-
|rowspan=2|{{MNE}} || [[Democratic Party of Socialists of Montenegro]]<br>{{lang|cnr|Demokratska partija socijalista Crne Gore}}|| DPS || ||align="left"|{{Composition bar|17|81|#{{wikidata|property|P465}}}}
|-
| [[Social Democratic Party of Montenegro]]<br>{{lang|cnr|Socijaldemokratska partija Crne Gore}}|| SDP || ||align="left"|{{Composition bar|0|81|#{{wikidata|property|P465}}}}
|-
| {{NMK}} || [[Social Democratic Union of Macedonia]]<br>{{lang|mk|Социјалдемократски сојуз на Македонија}}<br>{{lang|mk|Socijaldemokratski Sojuz na Makedonija}}|| SDSM || ||align="left"|{{Composition bar|39|120|#{{wikidata|property|P465}}}}
|-
|{{SVK}} || {{no|[[Voice – Social Democracy]]<br>(suspended)<br>{{lang|sk|Hlas – sociálna demokracia}}}} || Hlas-SD || align="left"|{{Composition bar|1|15|hex=#{{wikidata|property|P465}}}} || align="left"|{{Composition bar|27|150|#{{wikidata|property|P465}}}}
|-
| {{SRB}} || [[Democratic Party (Serbia)|Democratic Party]]<br>{{lang|sr|Демократска странка}}<br>{{lang|sr|Demokratska stranka}}|| DS || ||align="left"|{{Composition bar|8|250|#{{wikidata|property|P465}}}}
|-
| {{SUI}} || [[Social Democratic Party of Switzerland]]<br>{{lang|de|Sozialdemokratische Partei der Schweiz}}<br>{{lang|fr|Parti socialiste suisse}}<br>{{lang|it|Partito Socialista Svizzero}}<br>{{lang|rm|Partida Socialdemocrata de la Svizra}}|| SP/PS || ||align="left"|{{Composition bar|39|200|#{{wikidata|property|P465}}}}{{Composition bar|9|46|#{{wikidata|property|P465}}}}
|-
| rowspan=2|{{TUR}} || [[Republican People's Party]]<br>{{lang|tr|Cumhuriyet Halk Partisi}}|| CHP || ||align="left"|{{Composition bar|130|600|#{{wikidata|property|P465}}}}
|-
| [[Peoples' Equality and Democracy Party]]<br>{{lang|tr|Halkların Eşitlik ve Demokrasi Partisi}}<br>{{lang|ku|Partiya Wekhevî û Demokrasiya Gelan}}|| DEM || ||align="left"|{{Composition bar|57|600|#{{wikidata|property|P465}}}}
|}