According to a Fair Employment Tribunal decision in 2016, Unity "comprises members of the Communist Party of Ireland, members of Sinn Féin and others", while Broad Left "comprises members of the Socialist Party, the Socialist Workers Party, People Before Profit and others".
In a 2016 Fair Employment Tribunal decision, Unity is identified as comprising members from the Communist Party of Ireland, Sinn Féin, and additional individuals, whereas Broad Left consists of members from various socialist groups and other entities.