| AHI Group European real estate property development and investment group. Views construction of commercial buildings as an integrated art form. http://www.ahigroup.com/ |
| Architektur Zentrum Wien Presentation site for international developments in architecture including lectures, symposia, seminars, workshops, and tours. http://www.azw.at/ |
| IG Immobilien Focuses on developing customized properties and maintining property value. http://www.ig-immobilien.at/ |