Dr. Guido Quelle
Managing Partner
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Fabian Vollberg
Managing Partner
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Linda Vollberg
Managing Partner
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Susanne-Fiss-Quelle
Senior Consultant
Pascal Kowsky
Senior Consultant
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Sebastian Kraemer
Management Consultant
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Moritz König
Junior Consultant
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Josefine Kaup
Student assistant
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Anne Hausen
Executive Assistant
With Mandat since August 2012
Key responsibilities: organization, administration, accounting
Kerstin Scupin
Staff Assistant
With Mandat since January 2012
Key responsibilities: organization and assistance in the International Brand Colloquium, administration
Dennis Darmadi
Staff Assistant
With Mandat since Juni 2025
Key responsibilities: support for consulting work and internal processes
Catinka
Office Dog
With Mandat since January 2016
Key responsibilities: chilling out, foraging for food and enthusiastic reception of visitors
Since its founding in 1989, Mandat has helped more than 250 companies grow profitably with more than 600 projects aimed at strong sustainable growth.
Our profession is a privilege that we handle responsibly.
Achieving outstanding results for our clients demands an exceptional team, the right environment and a corporate culture that is up to the task.
