ADN Group
Complex Negociation
level 1


The negotiations that companies and governments have to conduct in the conduct of their business have become increasingly complex: uncertainty, time pressure, hidden issues, unfavorable balance of power, threats, ultimatums, complex profiles, bad faith, hidden objectives, refusal to negotiate…and traditional methods may lack effectiveness.

The Essentials Complex Negotiation Masterclass can either stand on its own or be the first step in the ADN Complex Negotiation journey.


The Masterclass is for any person who must negotiate at their work or in their specialized field, regardless of their level.


Sensitivity to negotiation


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The masterclass is hosted by Marwan Mery at our Paris headquarters.

Marwan Mery is a professional negotiator. He works, daily, with businesses, government organisations and NGOs to help resolve their complex situations, including critical cases (kidnapping and ransom, extortion, suicidal persons...), commercial high-stakes negotiations, major social conflicts, diplomatic relations, and even therapeutic consultations where patients refuse to take their medication. Consultant at the United Nations and guest speaker at Harvard University on the subject of complex negotiations, he is the author of several successful books. He also manages ADN Group, an agency of professional negotiator made up of thirty experts located in France and abroad. Marwan is a former officer® specializing in influence and crisis negotiation within the COS, the French special operations command.

Learn more


  • Professionally structure the preparation stage for a complex negotiation
  • Identify and manage uncertainty factors
  • Design and appropriate the most appropriate strategies, tactics and techniques
  • Integrate the human factor
  • Understand and use psychological mechanisms


  • An online questionnaire including scenarios: NSTAA©, duration 25 minutes
  • A live evaluation at the end of the masterclass session
  • A complete debriefing of practical cases and situations during the training

Certified Qualiopi

ADN Group is a training organization that has obtained Qualiopi certification under the Training Action category.