"We share the Art of Mutual Prosperity to bring positive Values to our World."


"Our mission is to innovate, develop and transfer both science and experience proven tools and services in the field of social skills."


Stéphane Royer

Managing Partner

"With the right negotiation skills the world will be a better place"

Stephane is an expert in negotiation and conflict management with more than 15 years of experience in the fields. He has made his Doctoral Research on Negotiation for Management, and he was also trained as a Mediator by Marshal Rosenberg's NonViolent Communication. He's been leading negotiation all around the world for organisation, companies and families.

He created the negotiation 6-Acts© method, the SABRES© influence principles, and the PINS© profiling test, based on his research. An international network of certified trainers uses these methods.

He's also very much involved in the community, leading the negotiation training for l'effet A (the number 1 leadership training for women in Canada), and he's doing pro-bono mediation for PME and families.

Grégoire Seigneur de Bast

Managing Partner

"Good negotiation skills is not only improving your performance, it can also transform your life."

Grégoire is an expert negotiator with a solid expertise in complex and multi-cultural negotiations.

Grégoire is currently Head of Procurement at GSK Consumer Healthcare and a professional trainer in negotiation masterclasses. He has a successful track record of more than 20 years of international negotiations as well as leading multi-cultural teams.

Mutual benefits is a strength of Gregoire's negotiations outcomes, allowing him to close successful deals and build long-term relationships.

Grégoire is co-founder of Negotiation 6-Acts©, at Inness, offering a science-based negotiation method applicable to numerous situations. He is also co-founder of GRAD (Procurement Director Group).

He holds a degree of Business Administration.

Our certified trainers

Armin Fränkl

"The art of negotiation is to aim for creating common value for long-lasting partnerships.."

David Hermann

"Negotiation is not only a tool, it can also save lives."

Debbie Brown

"Negotiation, when done the right way, will constantly and pleasantly surprise you."

Katia Gutknecht-Botti

"Each negotiation is a new discovery, an inner adventure as much as a relationship journey to bring you to a mutually beneficial destination. Adventurous spirit to explore unfamiliar paths required! "

Sarp Içaçan

"Negotiation is all about building bridges between parties."

Matthieu Caplain

"What I consider a well managed negotiation is when both parties needs are satisfied."

Michael Zeiler

"If you believe you are receiving too much stress, let's see how a fireman deals with it every day."

Paul Berckmans

"Active listening has always been my best support to successful negotiations."

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