Speakers of the Service Summit Leaders 2025

Melanie Bielefeld TUI Group
Head of Complaints and Lawsuits

Sylwia Bischof Zattoo
Head Of Customer Service

Anne-Sophie Engert Sonova Gruppe
Head of Customer Care and Conversion

Nadine Fischer Mindshare
Group Head Client Service

Madeleine Friedrich mkk - meine krankenkasse

Pierre Hartmann S.OLIVER GROUP
Head of Sales Operations & Strategy

Dr. Annegret Köhler-Werzner DMK Deutsches Milchkontor

Andreas Kollmitz CommuniGate Kommunikationsservice

Sven Linkenbach SIGNAL IDUNA Gruppe
Circle Lead Customer Service

Marcus Nessler Samsung Electronics
Head of Customer Experience

André Siebert Lufthansa Technik
Director In-Service Support

Anika Tannebaum GROW! PREMIUM Customer Service & Leadership Consulting

Julia Vornberger S.OLIVER GROUP
Teamleader Sales Operations