Data
- Act Entertainment AG Basel
- Ensemble Corund
- Pro Senectute Kanton Luzern
- GC Events Sagl
- Migros-Kulturprozent-Classics
- Smallflower Events GmbH Elsau
- Good News Productions AG Glattpark
- Rima Entertainment AG
- eco2friendly, c/o Otto Fischer AG
- Swiss Music Awards
- GMkonzerte / Odessa Classics
- GMkonzerte / Odessa Classics