Socialist Workers' Federation was created in 1909.
Workers' Socialist Federation ended in 1924.
Socialist Federation of Algeria was created in 1908.
Swiss Socialist Federation was created in 1939.
Democratic Socialist Federation was created in 1956.
Scottish Socialist Federation was created in 1888.
Free Federation of Workers was created in 1899.
Workers' Socialist League was created in 1975.
Workers' Socialist Organization was created in 1979.
Aruban Workers' Federation was created in 1964.
Syndicalist Workers' Federation was created in 1950.
Workers Party of Socialist Unity was created in 1976.
Socialist Workers Party of Hungary was created in 1925.