Many unions are members of one or more global union federations, relevant to the sectors where they have their members. Individual unions may also be affiliated to a national trade union center, which in turn can be affiliated to the International Trade Union Confederation (ITUC) or the World Federation of Trade Unions (WFTU).
| Federation | Acronym | Founded | Dissolved | Fate[3] | | Building Workers' International | 1903 | 1934 | Merged into IFBWW |
| Communications International | CI | 1920 | 2000 | Merged into UNI |
| International Federation of Bookbinders and Kindred Trades | 1907 | 1949 | Merged into IGF |
| International Federation of Bakery Workers | 1907 | 1920 | Merged into IUF |
| International Federation of Brewery Workers | 1896 | 1920 | Merged into IUF |
| International Federation of Building and Wood Workers | IFBWW | 1934 | 2005 | Merged into BWI |
| International Federation of Chemical and General Workers' Unions | IFCGW | 1964 | 1995 | Merged into ICEM |
| International Federation of Chemical, Energy, Mine and General Workers' Unions | ICEM | 1995 | 2012 | Merged into IndustriALL |
| International Federation of Civil Servants | 1925 | 1935 | Merged into PSI |
| International Federation of Commercial, Clerical, Professional and Technical Employees | FIET | 1921 | 1999 | Merged into UNI |
| International Federation of Free Teachers' Unions | IFFTU | 1951 | 1992 | Merged into EI |
| International Federation of General Factory Workers | 1907 | 1964 | Merged into IFCGW |
| International Federation of Lithographers, Lithographic Printers and Kindred Trades | 1897 | 1949 | Merged into IGF |
| International Federation of Meat Workers | 1913 | 1920 | Merged into IUF |
| International Federation of Petroleum and Chemical Workers | IFPCW | 1954 | 1975 | Dissolved |
| International Federation of Plantation and Agricultural Workers | IFPAW | 1960 | 1994 | Merged into IUF |
| International Federation of Textile Workers' Associations | IFTWA | 1893 | 1960 | Merged into ITGWF |
| International Federation of Tobacco Workers | IFTW | 1889 | 1958 | Merged into PWIF |
| International Federation of Trade Unions of Audio-Visual Workers | FISTAV | 1974 | 1993 | Merged into MEI |
| International Federation of Workers in Public Services | 1907 | 1935 | Merged into PSI |
| International Garment Workers' Federation | IGWF | 1946 | 1960 | Merged into ITGWF |
| International Graphical Federation | IGF | 1949 | 2000 | Merged into UNI |
| International Landworkers' Federation | ILF | 1920 | 1960 | Merged into IFPAW |
| International Metalworkers' Federation | IMF | 1893 | 2012 | Merged into IndustriALL |
| International Secretariat of Arts, Communications, Media and Entertainment Trade Unions | ISETU | 1965 | 1993 | Merged into MEI |
| International Secretariat of Bricklayers | Merged into IFBWW |
| International Secretariat of Painters and Allied Trades | 1911 | 1946 | Merged into IFBWW |
| International Secretariat of Stone Masons | 1903 | 1946 | Merged into IFBWW |
| International Shoe and Leather Workers' Federation | ISLWF | 1946 | 1970 | Merged into ITGLWF |
| International Textile and Garment Workers' Federation | ITGWF | 1960 | 1970 | Merged into ITGLWF |
| International Textile, Garment and Leather Workers' Federation | ITGLWF | 1970 | 2012 | Merged into IndustriALL |
| International Typographers' Secretariat | 1889 | 1949 | Merged into IGF |
| International Union of Hotel, Restaurant and Bar Workers | IUHR | 1908 | 1961 | Merged into IUF |
| International Union of Wood Workers | IUW | 1904 | 1934 | Merged into IFBWW |
| Media and Entertainment International | MEI | 1993 | 2000 | Merged into UNI |
| Plantation Workers International Federation | PWIF | 1957 | 1960 | Merged into IFPAW |
| Miners' International Federation | MIF | 1890 | 1995 | Merged into ICEM |
| Universal Alliance of Diamond Workers | UADW | 1905 | 2006 | Merged into ICEM |
| World Confederation of Organizations of the Teaching Profession | WCOTP | 1951 | 1992 | Merged into EI |
| World Federation of Building and Woodworkers' Unions | WFBW | 1937 | 2005 | Merged into BWI |
1. ^{{cite book|author1=Jacques Rojot|title=Global Industrial Relations|editor1-last=Morley|editor1-first=Michael J.|editor2-last=Gunnigle|editor2-first=Patrick|editor3-last=Collings|editor3-first=David|date=2006|chapter=International Collective Bargaining|publisher=Routledge|location=New York|isbn=9781134330799|page=258}}
2. ^
3. ^{{cite book|title=International Trade Union Organisations|publisher=Friedrich-Ebert-Stiftung|pages=86–93|url=http://library.fes.de/pdf-files/iez/01168.pdf|accessdate=25 May 2018}}
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