United Jewish Socialist Workers Party was created in 1917.
United Socialist Workers' Party was created in 1993.
Socialist Workers Party - United States - was created in 1938.
International Workers Party was created in 1974.
United Socialist Movement was created in 1934.
The Class Struggle magazine was created in 1940 by a group of Socialist Workers Party members in the United States. It aimed to provide analysis of current events and promote socialist ideas among workers and activists.
United Socialist Party - UK - was created in 2004.
United Socialist Party of Russia was created in 2003.
United Socialist Organisation of India was created in 1947.
World Socialist Party of the United States was created in 1916.
Scottish Socialist Party United Left was created in 2006.
National Socialist League - United States - was created in 1974.
Socialist Equality Party - United States - was created in 1966.