With about 323,082 members, the United Federation of Danish Workers – 3F for short – is Denmark’s largest trade union.

3F was formed on 1 January 2005 through an amalgamation of the General Workers’ Union (SiD) and the Women Workers’ Union (KAD).

3F organises both skilled and unskilled workers in several sectors including industry, building and construction, transport, cleaning, gardening, agriculture and forestry.