Data
- Talks, Referate
- KKL Luzern Management AG
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Feldmusik Luzern
- Pro Senectute Kanton Luzern
- domino Event SARL St. Gallen www.dominoevent.ch
- argovia philharmonic
- GC Events Sagl
- Migros-Kulturprozent-Classics
- Alegria Konzert GmbH
- KKL Family
- Lorenz Hauser Management