| #1 | | | Viena, Áustria | | 155+ tahun | Tes laboratorium | — | — | International Organization for Standardization, World's Best Hospitals 2021 by Newsweek |
| #2 | | | Viena, Áustria | | 31+ tahun | Tes laboratorium | — | — | International Organization for Standardization |
| #3 | | | Viena, Áustria | | 297+ tahun | Tes laboratorium | — | — | — |
| #4 | | | Graz, Áustria | | 21+ tahun | Tes laboratorium | — | — | International Organization for Standardization |