Data
- Act Entertainment AG Basel
- City Light Concerts
- Festival Strings Lucerne
- Gadget abc Entertainment Group AG
- Verein Luzerner Blues Session
- Lucerne Festival
- domino Event SARL St. Gallen www.dominoevent.ch
- Migros-Kulturprozent-Classics
- Feldmusik Hochdorf
- Culture Communication GmbH
- Migros-Kulturprozent-Classics