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Bill Marsh
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IMI Certified Mediator
Austria, Barbados, Belarus, Belgium, Bulgaria, Canada, Cayman Islands, China, Egypt, Finland, France, Georgia, Germany, Gibraltar, Hong Kong, Hungary, India, Ireland, Israel, Italy, Japan, Kazakhstan, Kenya, Kyrgyzstan, Latvia, Lebanon, Lithuania, Luxembourg, Malta, Monaco, Nepal, Netherlands, New Zealand, Nigeria, Norway, Pakistan, Poland, Romania, Russian Federation, Saudi Arabia, Serbia, Singapore, Slovenia, South Africa, Spain, Sweden, Switzerland, Tajikistan, Tunisia, Turkey, Turks and Caicos Islands, Uganda, Ukraine, United Arab Emirates, United Kingdom, United States, Uzbekistan
English, French
EQP - Experience Qualification Path (Historic)
Mediation Profile

Bill Marsh ( is one of Europe's most experienced commercial mediators. Involved full-time in mediation since 1991, and independently rated by Chambers Directory as “…one of the greats…”, he has successfully mediated a wide cross-section of commercial disputes. International recognition has led to Bill being featured in every edition of the international Who's Who Legal list of most highly regarded mediation individuals, including Mediator of the Year in 2014-15 and 2019-20, and featuring every year as a "Global Elite Thought Leader" .

Bill is a full-time commercial mediator, based in London, England, and operating both in the UK and internationally. His mediation practice has included disputes and parties from numerous countries including UK, Ireland, France, Switzerland, Belgium, Spain, Italy, Greece, Lebanon, Tunisia, Nigeria, Ghana, USA, Canada, Australia, Japan, China, Russia, Ukraine, Uzbekistan, Bahrain, Qatar, Saudi Arabia, Egypt, Bosnia, Serbia, and South Africa. Parties have included individuals, private companies and firms, public companies, public bodies/authorities, and national governments. His mediations cover a broad cross-section of commercial disputes, and range from relatively modest to multi-billion pound in value.

He is a founder member of Independent Mediators, Europe's leading private chambers of full-time commercial mediators -

He has been at the forefront of commercial mediation in the UK since its inception.

Bill has also served as mediation adviser to the governments of Russia, Romania, Slovakia, Bulgaria and Turkey, and to institutions such as the International Finance Corporation/World Bank Group, European Commission, and United Nations.  He has chaired inter-governmental meetings on mediation involving more than 30 countries, and has represented the UK at the United Nations.

Bill also trains and presents widely on mediation and on wider conflict issues.

Bill also works on complex religious and political conflicts, and is a peace envoy for the Archbishop of Canterbury.

Bill was formerly a founding director of CEDR in London, for 11 years (1991-2002). Prior to that, he was a corporate lawyer in private practice in the UK and Paris.

Bill has worked full-time in the mediation field for the last 30 years. As a professional mediator he mediates disputes every week, covering almost every area of law and practice. Parties tend to be private and public corporations, local and national governments, professional firms, public authorities and individuals.

He has mediated throughout the UK and is also well known as an international mediator. He has mediated disputes from some 50 countries, with parties including governments, state-owned/controlled corporations, and international businesses from North America, Europe, Russia/CIS, South and South East Asia, Africa, Caribbean, Pacific Rim and Australasia. His mediation experience covers a wide range of international commercial issues, including major infra-structure projects, oil and gas/energy, construction and engineering, IT, banking, competition/anti-trust, shareholder and joint venture disputes, intellectual property, insurance and others.

The clearest indication of Bill's mediation style can be gleaned from his feedback digest on this site. Relaxed in his manner, he is quick to build trust and engage with all those involved, and regards this is indispensable to mediating effectively. He seeks to manage the process proactively, and encourage frank and candid discussions. He will focus on pragmatic solutions, but always respecting that the ultimate choices lie with the parties themselves. He is regarded as respectful and sensitive to the personal issues whilst being incisive and insightful on the commercial ones.

Bill's mediation practice covers a wide range of areas, and over the last 30 years he has mediated disputes in almost every area of law and business. Parties tend to be private and public corporations, local and national governments, professional firms, public authorities and individuals. Examples of the fields covered include: Banking, commercial contract cases, commercial fraud, company/shareholders, construction and Engineering, employment, IT, Insurance/reinsurance, intellectual Property, national and local government, medical negligence, partnerships, pensions, personal injury, political, product liability, professional negligence, regulatory, shipping, sport. Business sectors involved include: Aerospace, Engineering, Agriculture, Airports, Automotive, Biotechnology & Pharmaceuticals Business (& Consumer) Services, Clothing & Fashion, Communications, Construction, Creative & Media, Defence & Military, Education & Training, Electronics, Engineering, Environment, Financial Services, Food & Drink, Games, Healthcare & Medical, Information Communication Technology, Insurance and Reinsurance, Legal Services, Leisure & Tourism, Marine, Mechanical & Electrical Engineering, Mining, Oil & Gas, Ports & Logistics, Power, Public-Private Partnerships, Railways, Research & Development, Science & Technology, Security, Sports & Leisure Infrastructure, Telecommunications, Water & Other Utilities

Independent Mediators -
International Academy of Mediators - Distinguished Fellow

Singapore International Mediation Institute - Panel Mediator 

Bombay Centre for Mediation and Arbitration - Eminent Mediator Panel

CPR Panel of Distinguished Mediators
ICC Mediator
CEDR-accredited mediator

Ukraine Business Mediation Centre - Advisory Board 

Training and Education

Bill has trained literally thousands of people in mediation and mediation skills, both to basic and advanced levels.

As a founder trainer at CEDR, he helped develop their mediation training course.  Since then he has gone on to develop his own bespoke courses and train extensively on the international circuit, including in UK, Belgium, Netherlands, France, Germany, Austria, Switzerland, Slovenia, Hungary, Slovakia, Romania, Bulgaria, Russia, Hong Kong, Australia, and the US. He has also trained mediators for ICC in Paris. He has delivered mediation training for mediators, judges, lawyers, business people, and government officials.

He is a regular speaker at international mediation conferences and events.

  • "The ADR Practice Guide - Commercial Dispute Resolution" - published by Tottel (UK), 3rd edition 2007
  • Contributing author of "Mediators on Mediation" - published Tottel (UK), 2005
  • Numerous articles.
  • Editor, Mediation World 
  • Contributing Editor, Kluwer Mediation Blog.

Independent Mediators Code of Professional Conduct
EU Code of Conduct.

IMI Professional Conduct Assessment Process
Independent Mediators Professional Complaints Process

AXA Insurance UK plc

Bill Marsh
International Mediator
+ 44 (0)20 7127 9223
+44 (0)7720 393994
+ 44 (0)20 7917 6041
United Kingdom
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