Data
- Talks, Referate
- Obrasso Classic Events GmbH
- Act Entertainment AG Basel
- Festival Strings Lucerne
- Gadget abc Entertainment Group AG
- Chor der Nationen Luzern
- Pro Senectute Kanton Luzern
- GC Events Sagl
- swiss classics gmbh / Lucerne Chamber Circle
- Euroconcerts Suisse Sarl
- Jazz Club Luzern und AllBlues Konzert AG Winterthur