Prof. Armbrüster leads the Institute for Knowledge Management and Human Resource Management at the University of Marburg and has been supporting numerous managers at all hierarchical levels in their professional development as a leadership trainer and leadership coach for more than 10 years.

Hagen Ries is Managing Director of Prof. Armbrüster Leadership Services GmbH and responsible for administration, organisation and contracts. Prof. Armbrüster Leadership Services GmbH offers Leadership Trainings, Executive Coachings, High Potential Trainings, Strategy Workshops and more.

Thomas Scherer has been training managers in leadership, team leadership, project and selfmanagement since 2012.Prof. Armbrüster Leadership Services GmbH offers Leadership Trainings, Executive Coachings, High Potential Trainings, Strategy Workshops and Silicon Valley Journeys.

Daphné Schalbetter has more than 20 years of experience in leadership development as a consultant, trainer and coach.

Bettina Schnabel has been working as a coach and trainer since 2012. She is a certified business coach and a member of the International Coaching Federation.

André Beckers trainiert zu den Themen Leadership, Digitale Transformation, Unternehmenskultur und Change Management.

Jeffrey Breyer has more than 20 years of experience in leadership development as a trainer, business coach and consultant.

Julia Bock has been supporting executives in seminars and trainings in her special fields of leadership, human resource management and communication since 2009.

Sabine Hellwig has been an employee and later a manager in human resource management for 20 years. She has been an executive trainer and coach for four years.

Arnaud Arène is an executive trainer and personal coach. With many years of experience, he supports executives in their personal and professional development.

Martin Scherer is a trainer, coach and expert in communication, corporate communication and business presentations with extensive practical experience.