§ Transport and General Workers' Union.
§ Amalgamated Union of Building Trade Workers.
§ Amalgamated Society of Woodworkers.
§ Electrical Trades' Union.
§ National Amalgamated Society of Operative House and Ship Painters and Decorators.
§ National Association of Plasterers and Granolithic Workers.
§ South Wales Miners' Federation.
§ National Union of Printing and Paper Workers.