United Nations Office at Vienna
- Contains visitor information, conference list, contracting recommendations and employment opportunities.
- http://www.unvienna.org/

City of Vienna
- The city administration. Includes information about politics, business, tourism, transport, photographs and articles about special events.
- http://www.wien.gv.at/

Vienna Convention Bureau
- Provides information on venues, accommodation and the city for those planning meetings, conventions and events.
- http://www.vienna.convention.at

Austria Center
- Exhibition and conference centre. Contains details of buildings and area, press releases, and location and contact information.
- http://www.acv.at