Data
- Obrasso Classic Events GmbH
- Gadget abc Entertainment Group AG
- Konzertchor Luzern
- Stargarage AG
- domino Event SARL St. Gallen www.dominoevent.ch
- GC Events Sagl
- CLAMUS Lucerne
- Smallflower Events GmbH Elsau
- Culture Communication GmbH
- Maya Classics
- Jazz Club Luzern und AllBlues Konzert AG Winterthur
- Jazz Classics