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Tony Marks

Tony Marks Jan 2022.jpg

Tony Marks is a full time ADR practitioner in arbitration and mediation.  Tony is a member and director (and founding shareholder) of ArbDB. 

Tony Marks has more than thirty years’ experience of litigation and arbitration, as a solicitor in private practice. He was a partner in CMS Cameron McKenna from 1983-2008, conducting a wide range of commercial litigation and arbitration, specialising in particular in the financial and energy sectors.  Since retiring from full time legal practice in 2008, he has sat as arbitrator in commercial arbitrations and acted as mediator in a wide range of disputes.  


Aldenham School 1963-8
University of Bristol LLB (Hons.) 1969-72


Arbitrator, Mediator, independent consultant on Alternative Dispute Resolution, Solicitor (non-practising).​


2011 to present        Member of ArbDB Chambers
2008 – 2012             Director of Legal Services (part time) at the Chartered Institute of Arbitrators
1983 – 2008             Partner in Litigation and Dispute Resolution Department of  CMS Cameron McKenna  (formerly McKenna & Co)
1979 - 1983              Solicitor in Litigation Department at McKenna & Co
1973 – 1979             Trainee and Solicitor at Clifford-Turner (now Clifford Chance)


2011    Fellowship of the Chartered Institute of Arbitrators (FCIArb)
2009    Diploma in International Commercial Arbitration (CIArb)
2005    Mediator accredited through ADR Group
1994    CEDR mediation training
1975    Solicitor of the Supreme Court of England and Wales


  • As sole arbitrator appointed by the President of the Law Society on claim by insurers seeking to avoid a solicitor’s professional indemnity cover for fraud

  • As member of a three person Tribunal in an LCIA arbitration in relation to repayment of a loan for yacht finance under a deed of suretyship

  • As sole arbitrator appointed by the President of the Law Society in a claim for $2m by a UK company against a Canadian company for wrongful termination of an agency agreement for the sale of electronic components to European countries; the claims involved valuation of the agency under the Commercial Agents Regulations; making awards on jurisdiction and a final award on liability (after a five day hearing) involving twelve issues. The parties settled the claim after the award on liability.

  • As sole arbitrator in an LCIA arbitration on a claim for a commission fee arising out of an M&A transaction.

  • As sole arbitrator appointed by the President of the Law Society in a dispute involving revocation of an insurance policy.

  • As party appointed arbitrator on a three person tribunal between an African based Bank and a supplier of card services for breach of contract / implied terms, which went to final award.

  • Making numerous consumer awards under the Renewable Energy Consumer arbitration scheme and other consumer schemes.



Recent cases mediated by Tony include:

  • Successfully mediating a claim between a company pension scheme and the liquidators of the company;

  • Resolving a dispute between a business owner and an agent on the sale of a business; 

  • Mediating a claim for repayment of a loan made to a property developer;

  • Resolving a fraud claim by a dental practice against its former manager;

  • Successfully mediating a claim by a property developer against a housing association for compensation under a lease;



  • ADR Group Commercial Mediators Panel and Clerksroom

  • Law Society Panel of Arbitrators

  • Member of LCIA and ICC


  • Speaker at CIArb Mediation Symposia 2008-2013

  • Speaker on mediation topics at the Solicitors Group Civil litigation conferences 2013-4

  • Speaker on Managing Risks in Global Oil & Gas Joint Ventures and Strategic Partnerships 2013

  • Assessor for ADR Chambers mediation training 2013

  • Official at the Worshipful Company of Arbitrators Mediation Skills Competition 2014

Contact - for more information or to discuss Tony's availability or fees please contact our Clerk Martin Poulter on +44 (0)20 3514 9020 or by email

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