Data
- others
- Talks, Referate
- Opera, Operetta
- Classical music
- Act Entertainment AG Basel
- DaCapo Musikmarketing GmbH
- Festival Strings Lucerne
- Lucerne Festival
- Reisefibel Leipzig
- Migros-Kulturprozent-Classics
- Alegria Konzert GmbH
- Good News Productions AG Glattpark
- eco2friendly, c/o Otto Fischer AG
- Auditorium
- Europaplatz