Confederación de Sindicatos Unitarios de Trabajadores was created in 1977.
Federación de Sindicatos Ferroviarios was created in 1922.
Bibliotheca Fratrum Polonorum quos Unitarios vocant was created in 1668.
Central Latinoamericana de Trabajadores was created in 1954.
Confederación Revolucionaria de Trabajadores was created in 1954.
Unión General de Trabajadores was created in 1888.
Central Socialista de Trabajadores was created in 2008.
Central de Trabajadores Democráticos was created in 198#.
Confederación de Trabajadores de Venezuela was created in 1936.
Central Autónoma de Trabajadores Salvadoreños was created in 1966.
Agrupación de Trabajadores Latinoamericanos Sindicalistas was created in 1952.
Organización Revolucionaria de los Trabajadores was created in 1969.
Confederación Unitaria de Trabajadores del Perú was created in 1992.