The parent company of the Finnair Group is Finnair Plc, which has 17 subsidiaries, the most significant of which are Finland Travel Bureau Ltd and Finnair Catering Oy. Other notable subsidiaries are Matkatoimisto Oy Area, Oy Aurinkomatkat-Suntours Ltd Ab, Finnair Aircraft Finance Oy, Finnair Cargo Oy, Finnair Cargo Terminal Operations Oy and Northport Oy. Of the airlines belonging to the Finnair Group in addition to the parent company, Aero Airlines AS discontinued its operations at the beginning of 2008 and the entire share stock of the Swedish company Nordic Airlink Holding AB was sold to Norwegian Air Shuttle in July 2007. The Finnair Group's 20 business units and subsidiaries are organised into four business areas: Scheduled Passenger Traffic, Leisure Traffic, Aviation Services and Travel Services.