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Empowering the global mediators of the future

We are an international, accredited training institute transforming how the world resolves conflict—through accessible, practitioner-led mediation programmes that serve communities, corporations, and conflict zones alike.

Our Mission Meet the Team

Trusted By Global Organisations

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Our Mission

We train professionals to become confident, accredited mediators—empowered to transform conflict across local, regional and global contexts. 

Our training spans eight critical thematic areas:

  • Family Mediation
  • Communities
  • Commercial and Corporate
  • Education
  • Peace and Armed Conflict
  • Humanitarian
  • Public Health
  • Climate and Environment
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The CONSENSUS Way

Our signature methodology—The CONSENSUS Way—transforms conflict through innovative dialogue and professional mediation practice. We combine cutting-edge techniques with a strong ethical foundation to:

  • Change behaviours, not just resolve disputes
  • Deliver high-quality training accessible to all
  • Equip mediators for long-term impact in diverse environments

Everything we do is grounded in accessibility, excellence, and global fairness — Ian Rigden, Director of IMC

 

Explore Our Courses Meet the Team

What We Stand For

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    Global Access

    Affordable training adapted to your country—so no one is excluded.

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    International Accreditation

    Certifications recognised by IMC, IMI and ISM and accredited by SIMI. 

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    Inclusive Learning

    Open to all backgrounds, sectors, and languages.

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    Practitioner-Led

    Taught by mediators working on the frontlines of conflict.

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    Ethical Impact

    Built on fairness, sustainability, and social responsibility.

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    The CONSENSUS Family

    A global alumni network committed to transforming conflict.

Meet the Leadership Team

Meet the people who guide IMC and support our learners every day.

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Dr Andrea Hartmann-Piraudeau

Founder and Managing Director of CONSENSUS Group

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Dr Andrea Hartmann-Piraudeau

Founder and Managing Director of CONSENSUS Group

Andrea founded Consensus Group a German well known service provider for mediation in 2014 and in line with that later the International Campus.
Her expertise and at the same time passion lies in conflict resolution, intercultural communication and curriculum development. She draws on a wealth of knowledge and practical experience on the topics of mediation, negotiation, intercultural communication, leadership, process design and organisational development. Before establishing the company, she managed large European projects, conducted negotiations and set up an internationale study program, among others. She is an international certified mediator (IMI) and has supported many parties to settled conflicts internationally in commercial, workplace and multi-party settings. In this role, she also advises ministries, governments and organizations worldwide. Her academic training consists of a master's degree in communication sciences and sociology, a Master in mediation and a PhD in Social science on the topic "Cooperation or confrontation? The effect of commitment, empowerment, emotion and criticism in negotiation and mediation". She completed the last two degrees on the job in order to delve deeper into the subject she also focuses on in practise. Andrea has published scientific books and essays about mediation and conflict management. Her special area of consulting lies on highly escalated conflicts, intercultural conflicts and multi-party conflicts, community conflicts involving private sector and government stakeholders. She also taught in diverse universities and developed trainings and curriculums for different target groups in various sectors

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Alexandra Kieffer

Member of the Management Board Consensus Group

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Alexandra Kieffer

Member of the Management Board Consensus Group

Alexandra Kieffer began her path to conflict resolution and mediation by studying sociology, economics and the Joint Master Degree "Peace and Conflict Studies" in Germany and England. She is a certified mediator and Senior Programme Manager in the national (CONSENSUS Campus) and international (IM Campus) training area of CONSENSUS. After working as a consultant in the field of political communication, she is now mainly responsible for international projects on conflict resolution, communication and mediation at CONSENSUS.

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Ian Rigden OBE FRGS

Director International Mediation Campus (IMC)

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Ian Rigden OBE FRGS

Director International Mediation Campus (IMC)

 
Ian joined the British Army in 1980 and spent 37 years in uniform, retiring in 2017. He spent most of his service in the Brigade of Gurkhas in many places around the world. He has spent that last 8 years working as a humanitarian.
He was the Regional Security Sector Advisor for the Centre for Humanitarian Dialogue Asia Regional Office and Myanmar Team from 10 July 2017 to 1st April 2022 working on the Myanmar Peace Process, engaging with multiple actors. He then became the Regional Advisor for HD Asia-Pacific, coordinating, mediating and facilitating specific projects on Humanitarian access and human security (particularly Myanmar), but also supporting HD’s wider efforts in South East Asia, including Thailand, Bangladesh and the Philippines, as well as providing security sector advice to HD’s team globally as required. He has taught mediation and negotiation and facilitated multiple dialogues during the last 7 years plus to many conflict parties throughout South East Asia and further afield, with another 15 years negotiation and mediation practical and teaching experience in the UK Armed Forces prior to that. He is currently the Director of the International Mediation Campus (IMC), the international arm of the mediation and negotiation training organisation, CONSENSUS Group, Germany. IMC is registered in London. He is a member, facilitator and mentor for the Centre of Competence for Humanitarian Negotiation (CCHN), which is based in Geneva. He holds Master’s Degrees in Defence Studies from King’s College, London (1995), and Strategic Studies from the US Army War College (2008). He is also a Fellow of the Royal Geographical Society.

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Certifications & Accreditations

We offer an IMI (International Mediation Institute) certified international mediation training. The course meets international standards (40 hours of training). After the successful completion of the training, you are an IMC certified international mediator and eligible to become IMI qualified. After the training, you can be listed on the IMC and IMI homepage as a mediator. Our international mediation training is also certified by the International School of Management (ISM), a business school based in Germany and accredited by the Singapore International Mediation Institute (SIMI). After successful completion of the training, participants receive a certificate issued by the ISM and CONSENSUS.

Partner with IMC

Join Our Global Mediation Network

We build impact-driven initiatives with accredited institutions, NGOs and corporate allies across our 70-country community. Contact us to explore partnership opportunities.

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Meet Our Team of
International Mediation Trainers

Coming from different countries, cultures and professional backgrounds, our team is here to share their expertise and experiences with you. Click on a trainer to view their profile and associated trainings and more.

Steve Rottman

Steve Rottman

Mediator

Steve Rottman is one of America's most respected mediators. An honors graduate of Harvard Law School and a summa cum laude graduate of Duke University, he spent 20 years as a trial lawyer before commi..

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Mohamed M Keshavjee LLB , LLM ( Hons) PhD ( SOAS )

Mohamed M Keshavjee LLB , LLM ( Hons) PhD ( SOAS )

Cross Cultural Specialist on Mediation

Mohamed M Keshavjee LLB , LLM ( Hons) PhD ( SOAS ) and Barrister - at- Law from Gray's Inn London is an internationally respected cross cultural specialist on mediation . He has attended courses in me..

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Alina Serhieieva

Alina Serhieieva

Professional Trainer and lecturer on ADR and Justice related matters.

Strategic and analytical researcher, and expert with more than 10 years progressive experience in justice reform and mediation

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James Claxton

James Claxton

Mediator, Arbitrator &, Law Professor

James is a mediator, arbitrator, and law professor at Rikkyo University in Tokyo. He previously practiced international dispute resolution at law firms in Paris and was legal counsel at the Internatio..

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Yejide Osunkeye

Yejide Osunkeye

Yejide Osunkeye

Yejide Osunkeye is the Principal partner at YBO Legal, Solicitors, Advocates, Mediators and Arbitrators. She was called to the Nigerian bar in 2001.

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Anat Cabili

Anat Cabili

Mediator, Facilitator and Attorney

Anat Cabili is a mediator, facilitator and attorney (admitted to the Israeli Bar Association in 1998). She has been practicing mediation and facilitation since 2006 and owns a private mediation busine..

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Mandana Kamali

Mandana Kamali

Qualified Mediator

Mandana Kamali is an educator and administrator who works with teachers, parents and students. She is a mediation trainer in Iran and is eager to participate in building a better peaceful world for ch..

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