Data
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Gadget abc Entertainment Group AG
- Pro Senectute Kanton Luzern
- argovia philharmonic
- GC Events Sagl
- Good News Productions AG Glattpark
- Culture Communication GmbH
- Euroconcerts Suisse Sarl
- Maya Classics
- Furler Productions
- SJSO
- ArteCultura
- Act Entertainment AG Basel