Data
- Act Entertainment AG Basel
- City Light Concerts
- Festival Strings Lucerne
- Feldmusik Luzern
- GMkonzerte
- argovia philharmonic
- GC Events Sagl
- Migros-Kulturprozent-Classics
- KKL Luzern Management AG und Luzerner Sinfonieorchester
- Rima Entertainment AG
- eco2friendly, c/o Otto Fischer AG
- Act Entertainment AG Basel