Socialist Workers Party - UK - was created in 1977.
Socialist Party - Marxist - was created in 1954.
Movement for Socialism - Britain - was created in 1985.
Socialist Action - UK - was created in 1982.
Socialist Worker was created in 1977.
Socialist Political Action was created in 1980.
National Socialist Party - UK - was created in 1916.
United Socialist Party - UK - was created in 2004.
Sardinian Socialist Action Party was created in 1948.
Workers Organisation for Socialist Action was created in 1990.
Senegalese Party of Socialist Action was created in 1957.
League for Socialist Action - Canada - was created in 1932.
National Socialist Action Party was created in 1982.
Liberal Socialist Action Party was created in 1998.
Social Democratic Action was created in 1951.
National Socialist Party - UK - ended in 1941.
Freedom Socialist Party was created in 1966.