Data
- Act Entertainment AG Basel
- Vokalensemble Luzern
- GMkonzerte
- 21st Century Orchestra
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- Smallflower Events GmbH Elsau
- Good News Productions AG Glattpark
- Rima Entertainment AG
- MyNina Spettacoli sagl
- Jazz Club Luzern und AllBlues Konzert AG Winterthur
- 21st Century Orchestra