United Socialist Workers' Party was created in 1993.
United Socialist Party - UK - was created in 2004.
Socialist Workers Party - United States - was created in 1938.
World Socialist Party of the United States was created in 1916.
United Jewish Socialist Workers Party was created in 1917.
Scottish Socialist Party United Left was created in 2006.
Socialist Equality Party - United States - was created in 1966.
Freedom Socialist Party was created in 1966.
Socialist Party of Ontario was created in 2011.
Socialist Party of Albania was created in 1991.
Socialist Party of Latvia was created in 1994.
Rwandese Socialist Party was created in 1991.