It was founded in 1971 as the Federation of Socialist Workers (Bund Sozialistischer Arbeiter) by West German supporters of Gerry Healy's Socialist Labour League and was renamed the Party for Social Equality, Section of the Fourth International (Partei für Soziale Gleichheit, Sektion der Vierten Internationale, PSG) in 1997.
On 18–19 February 2017, the party adopted its present name.[3]
The SGP is critical of trade unions (which it views as merely a tool of the labour aristocracy), social democrats, and Stalinist organisations.[6] The party takes an anti-nationalist and anti-capitalist stance. It supports the introduction of universal basic income.[7]
The Left: is currently only in the state parliaments of Berlin, Bremen, Hamburg, Mecklenburg-Vorpommern, Saxony, Saxony-Anhalt, and Thuringia.
BSW: is currently only in the state parliaments of Berlin, Brandenburg, Hamburg, Rhineland-Palatinate, Saxony, and Thuringia.
FW: is currently only in the state parliaments of Bavaria, Rhineland-Palatinate and Saxony; does not participate in state elections in Brandenburg, an associated party BVB/FW participates here.