The Sumbiosis Partners

Sumbiosis consists of a network of experienced consultants with different backgrounds and a broad range of professional experience. What we all share is a strong interest in negotiation and conflict management, as well as in supporting cooperation processes. Thanks to this unique mix of shared interests and different strengths, we are able provide our clients with the expertise needed to fulfill their specific requirements.


Joana Racine

Joana Racine

M.A. cand. Management, Organization und Culture
Klaus Winkler

Klaus Winkler

Economist (PhD), moderator, facilitator
4.1-Portrait Jerome Racine #2

Jérôme Racine

Legal counsel, negotiation process consultant and trainer, facilitator
Nicolas Dutoit

Nicolas Dutoit

Business Lawyer, Mediator

Marion Alt

Business economist / Certified coach, mediator, supervisor and organizational consultant
Portrait Adrian Hässig

Adrian Hässig

Coach, facilitator and certified corporate mentor
Portrait Catherine Mehrtens

Catherine Mehrtens

MA in International Management, negotiation consultant and trainer, facilitator