Data
- AllBlues Konzert AG, Winterthur
- Luzerner Sinfonieorchester
- Act Entertainment AG Basel
- DaCapo Musikmarketing GmbH
- Festival Strings Lucerne
- Gadget abc Entertainment Group AG
- 21st Century Orchestra
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- CLAMUS Lucerne
- GMkonzerte / Odessa Classics
- 21st Century Orchestra