Data
- AllBlues Konzert AG, Winterthur
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Gadget abc Entertainment Group AG
- GMkonzerte
- argovia philharmonic
- GC Events Sagl
- Good News Productions AG Glattpark
- Culture Communication GmbH
- Maya Classics
- SJSO
- Verein Luzerner Orgelfreunde
- AllBlues Konzert AG Winterthur