Data
- Brass music
- Obrasso Classic Events GmbH
- Act Entertainment AG Basel
- Festival Strings Lucerne
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- Good News Productions AG Glattpark
- Maya Classics
- Rima Entertainment AG
- Jazz Club Luzern und AllBlues Konzert AG Winterthur
- GMkonzerte / Odessa Classics