Data
- Act Entertainment AG Basel
- Festival Strings Lucerne
- GMkonzerte
- 21st Century Orchestra
- GC Events Sagl
- Good News Productions AG Glattpark
- Maya Classics
- eco2friendly, c/o Otto Fischer AG
- Jazz Club Luzern und AllBlues Konzert AG Winterthur
- GMkonzerte / Odessa Classics
- 21st Century Orchestra
- Concert Hall