The Organization for Security and Co-operation in Europe(OSCE) has had its permanent conference seat at the Hofburg Vienna for over 20 years. 1,500 delegates from 56 participating states and 12 partners for co-operation meet here annually for 3,000 meetings, transforming the Hofburg into a global political hub. In 2010 Kazakhstan took over the chairmanship of the OSCE and has already hosted a number of high-level diplomatic summits. The majority of delegates stay in the Austrian capital with their families for a period of around three years. There are about 800 accredited diplomats living in the city at any one time. Such long-standing partnerships as well as the congress and events business enable the Hofburg Vienna to generate added value of about EUR 180-200 million annually.

But the professionalism of the Hofburg staff has also convinces countless other high-profile organisations to return for their events time and again. High-level meetings and seminars by the Organization of the Petroleum Exporting Countries (OPEC) take place at the conference centre, and the International Atomic Energy Agency (IAEA) hosts its annual ball and a number of meetings at the former imperial residence. ThePreparatory Commission for the Comprehensive nuclear-test-ban treaty organization (CTBTO ) is another organisation in the Hofburg’s portfolio.