Data
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Blasorchester Stadtmusik Luzern
- Pro Senectute Kanton Luzern
- domino Event SARL St. Gallen www.dominoevent.ch
- GC Events Sagl
- Migros-Kulturprozent-Classics
- ENCORE! Entertainment AG
- Blasorchester Stadtmusik Luzern
- domino Event SARL
- ENCORE - Entertainment AG