Affiliates
{, class="wikitable sortable" ! Union !! Founded{{cite book , title=Directory of Labor Organizations: Europe , volume=2 , date=1965 , publisher=United States Department of Labor , location=Washington DC , page=29.1–29.11 !! Left !! Reason left , - , Agricultural and Procurement Workers' Union , , 1899 , , , , , - , Automobile Transport Workers' Union , , , , 1957 , , Merged , - , Aviation and Defence Industry Workers' Union , , 1957 , , 1977 , , Split , - , Aviation Industry Workers' Union , , , , 1957 , , Merged , - , Aviation Industry Workers' Union , , 1977 , , , , , - , Aviation Workers' Union , , , , , , , - , Building and Building Materials Workers' Union , , 1957 , , , , , - , Building Materials Industry Workers' Union , , , , 1957 , , Merged , - , Chemical Industry Workers' Union , , , , 1957 , , Merged , - , Coal Mining Industry Workers' Union , , , , , , , - , Communication, Automobile Transport and Highway Workers' Union , , 1957 , , , , , - , Communications Workers' Union , , , , 1957 , , Merged , - , Construction Workers' Union , , 1946 , , 1957 , , Merged , - , Consumer Co-operatives Workers' Union , , , , 1957 , , Merged , - , Consumer Goods Industry Workers' Union , , , , 1957 , , Merged , - , Cultural Workers' Union , , , , , , , - , Defence Industry Workers' Union , , , , 1957 , , Merged , - , Defence Industry Workers' Union , , 1977 , , , , , - , Education, Higher Schools and Scientific Institutions Workers' Union , , 1957 , , , , , - , Engineering Workers' Union , , , , , , , - , Food Products Industry Workers' Union , , , , , , , - , Geological Survey Workers' Union , , , , , , , - , Higher Schools and Scientific Institutions Workers' Union , , , , 1957 , , Merged , - , Highway and Hydraulic Engineering Workers' Union , , 1934 , , 1955 , , Merged , - , Local Industry and Municipal Services Workers' Union , , 1957 , - , Local Industry Workers' Union , , , , 1957 , , Merged , - , Machine Building Industry Workers' Union , , , , 1957 , , Merged , - , Medical Workers' Union , , , , , , , - , Metallurgical Industry Workers' Union , , 1957 , , , , , - , Municipal Services Workers' Union , , , , 1957 , , Merged , - , Oil and Chemical Industry Workers' Union , , 1957 , , , , , - , Oil Industry Workers' Union , , , , 1957 , , Merged , - , Power Stations and Electrical Industry Workers' Union , , , , , , , - , Railway Transport Workers' Union , , , , , , , - , Sea and River Workers' Union , , , , , , , - , State Institutions Workers' Union , , , , , , , - , State Trade and Consumer Co-operative Societies Workers' Union , , 1957 , , , , , - , State Trade and Public Catering Enterprise Workers' Union , , , , 1957 , , Merged , - , Textile and Light Industry Workers' Union , , 1948 , , 1990 , , Federation dissolved , - , Timber and Rafting Workers' Union , , 1948 , , 1953 , , Merged , - , Timber, Paper and Woodworkers' Union , , 1953 , , , , , - , Transport and Heavy Machine Building Workers' Union , , , , 1957 , , Merged , - , Urban and Rural Construction Workers' Union , , 1946 , , 1956 , , Merged , - , Woodworkers' Union , , 1948 , , 1953 , , MergedPresidents
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