WAssociated Society of Locomotive Engineers and FiremenWBakers, Food and Allied Workers' UnionWCommunication Workers Union (United Kingdom)WFire Brigades UnionWGMB (trade union)WMusicians' Union (United Kingdom)WNational Union of Mineworkers (Great Britain)WTransport Salaried Staffs' AssociationWUnion of Shop, Distributive and Allied WorkersWUnison (trade union)WUnite the Union