020 3600 5050

Complete our Enquiry Form or Call on 020 3600 5050

I consent to adrgroup.co.uk collecting and storing my data from this form

Privacy Policy (Data Processor)

What Others Say

Mediation Services

"After 25 years of good old fashioned litigation I would describe myself as a mediation sceptic, that is, until I experienced Toby Walker and the team at ADR Group who showed me and my clients how it's really done and why it can be relied upon to produce results"

Mediation Services 

"ADR Group is a well-run and efficient service provider.  They listen to your mediation requirements with care and make sure they pair you with a mediator suited to your needs.  Everything is done in a very timely manner.  My first point of call, always" 

Mediation Services 

"ADR Group make organising mediations easy"

Mediation Training 

"I had already trained with a lesser known mediation company, though I wish I hadn't. Once I started to train with ADR Group, I realised how much i'd missed out on and how much I had to gain by training correctly. The trainers at ADR Group were the most helpful, friendly, informative and supportive trainers I could have ever wished for. The training was fun, informative and interesting and I am forever grateful to ADR Group for helping me along the way."

Joanna Nutley

Mediator Training

"I was extremely impressed by both the content and the delivery of the course particularly given the need to deliver it remotely. I have heard colleagues talk about mediation training that they have undertaken recently with other providers and this course would certainly appear to be more comprehensive than those."


Mediation Services

"I must say I was very impressed with the service received from the ADR Group and I will certainly be using you again in the future. Right from the start I was highly impressed with Sam; his responsiveness and communication was excellent."  Legal Counsel  

Our Mediators

Select a specialism

Anthony Marks

Civil and Commercial Mediator


Practice Overview

As a former litigation partner at CMS Cameron McKenna, Tony has more than 30 years experience of negotiating and resolving disputes for clients in a wide range of business sectors.  He trained as a mediator twenty years ago and since retiring from legal practice, Tony has become a full time mediator and arbitrator, bringing his litigation experience to finding practical solutions to resolve disputes.  Tony has a wealth of experience in resolving disputes ranging from financial, partnership and property disputes, fraud, insurance and contractual.


Professional Background

Tony trained and became a litigation assistant solicitor at Clifford-Turner (now Clifford Chance).  He joined McKenna & Co in 1979. From 1983 to 2008 he was a partner in CMS Cameron McKenna’s litigation team. 

Tony trained as a mediator in 1994 and has been an ADR Group accredited mediator since 2005. He is also a Fellow of the Chartered Institute of Arbitrators.  He sits as arbitrator in a range of commercial and consumer disputes.  In 2011 he became a founder member of the first International Multidisciplinary Chambers for Arbitration, Mediation and Dispute Boards, of which he is the Chairman.

From 2008 to 2012, Tony was Legal Director of the Chartered Institute of Arbitrators.  In this role he advised Institute members on professional and legal issues arising in mediation.


As well as his mediation experience Tony’s litigation experience includes areas such as Banking and financial litigation, Energy and electricity industry/infrastructure; disputes between grid operators and generators; PFI and infrastructure disputes, Commodities and futures, Pension fund and trust litigation, Information technology disputes in banking and financial industries, Share sale transactions and professional negligence cases in relation to accountants and investment managers


Recent Mediation Cases Include:

  • Resolving a dispute under a website supply agreement 
  • Successfully mediating a boundary dispute between two business owners
  • Mediating a claim against a former employee of an agency alleged to have obtained a secret commission
  • Co-mediator in a construction defects claim
  • Resolving a fraud claim by a dental practice against its former manager
  • Successfully settling a claim for vicarious liability by a husband and wife against an insurance broker as a result of fraud by a third party
  • A dispute between a dental practice and two of its consulting dental practitioners
  • A dispute between a distribution company and its consultant as to payment and performance under a consultancy agreement


Other Experience

  • Speaker at CIArb Mediation Symposia 2008-2013
  • Speaker on mediation topics at the Solicitors Group Civil litigation conferences 2013-4
  • Assessor for ADR Chambers mediation training 2013
  • Official at the Worshipful Company of Arbitrators Mediation Skills Competition 2014


Personal Interests

Tony’s interests include cricket, golf, sailing and theatre.


Areas of Specialism

  • Banking
  • Contract
  • Energy
  • Financial Services
  • Insurance
  • IT
  • Partnership
  • Professional Negligence
  • Property
  • Trusts

Latest News

Angus Crawford and Garry Ferguson

We are extremely pleased to welcome Angus Crawford and Garry Ferguson to our Panel of mediators.  Mark Belford says "Angus and Garry have a wealth of mediation experience and add further strength to our mediator panel. They are both available for appointments throughout the UK, but having a presence in Scotland is an exciting step forward for ADR Group."

13 Feb 2023

Would you like to join our panel of Mediators click here
for more information

© Copyright ADR Group 2022