Virtually all major even unions come members of a single or supplementary spherical union federations, relevant to the sectors in which it use their members. Ordinarily, the single union may besides exist as affiliated to a national trade union center, which in turn may be affiliated to a globe system like the International Confederation of Free Trade Unions, ICFTU.

Together by using a ICFTU & a Trade Union Advisory Committee to the OECD, ten spherical union federations jointly have & handle a website Global Unions.

List of global union federations
Education International [http://www.ei-ie.org Official site] International Federation of Building and Wood Workers [http://www.ifbww.org Official site] International Federation of Chemical, Energy, Mine and General Workers' Unions [http://www.icem.org Official site] International Federation of Journalists [http://www.ifj.org Official site] International Metalworkers' Federation [http://www.imfmetal.org Official site] International Textile, Garment and Leather Workers' Federation [http://www.itglwf.org Official site] International Transport Workers' Federation [http://www.itf.org.uk Official site] International Union of Food, Agricultural, Hotel, Restaurant, Catering, Tobacco and Allied Workers' Association [http://www.iuf.org Official site] Public Services International [http://www.world-psi.org Official site] Union Network International [http://www.union-network.org Official site]