We are Mandat

We are Mandat

Dr. Guido Quelle

Managing Partner

Fabian Vollberg

Managing Partner

Linda Vollberg

Managing Partner


Senior Consultant

Kimberlee J. Wilkerson

Senior Consultant

Pascal Kowsky

Senior Consultant

Carina Klein

Junior Consultant

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

Vanessa Taibbi

Consulting Assistant

With Mandat since August 2020
Key responsibilities: support for consulting and media design

Marc Ruhl

Staff Assistant

With Mandat since November 2021
Key responsibilities: support for consulting work and internal processes

Jan Philipp Schurmann


With Mandat since September 2022
Key responsibilities: Expert in print media, digital media and corporate identity


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 200 companies grow profitably with more than 500 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.

Growth comes from within

Have you got some excellent ideas on how to trim your company for profitable growth but lack the staff to implement them? Let’s talk.