Data
- Act Entertainment AG Basel
- Jazz Club Luzern
- City Light Concerts
- Festival Strings Lucerne
- Pro Senectute Kanton Luzern
- Smallflower Events GmbH Elsau
- Good News Productions AG Glattpark
- Feldmusik Hochdorf
- Culture Communication GmbH
- eco2friendly, c/o Otto Fischer AG
- Act Entertainment AG Basel
- Pro Senectute Kanton Luzern