Editing United and Alternative Left (section)

===Former members===
{| class="wikitable" style="text-align:left; font-size:95%;"
|-
! colspan="2"| Party
! Notes
|-
| bgcolor="{{party color|Party of the Communists of Catalonia}}"|
| [[Party of the Communists of Catalonia]] (PCC)
| Dissolved in November 2014.
|-
| bgcolor="{{party color|Living Unified Socialist Party of Catalonia}}"|
| [[Living Unified Socialist Party of Catalonia]] (PSUC viu)
| Left in June 2019 for [[United Left Catalonia]].
|-
| bgcolor="{{party color|Revolutionary Workers' Party (Spain)}}"|
| [[Revolutionary Workers' Party (Spain)|Revolutionary Workers Party]] (POR) 
| Left in June 2024.
|}