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Competition and Regulation

Competition Law and Regulation

Our competition law and regulation team have a cross-disciplinary practice that covers all aspects of competition law and economic regulation, including:

  • Administrative enforcement of EU and UK competition law prohibitions on anti-competitive conduct
  • Actions for damages and injunctions based on competition law
  • Market investigations and merger control
  • State Aid
  • Public procurement
  • Appeals in the General Court and the Court of Justice of the European Union (CJEU), the UK Competition Appeal Tribunal (CAT), and at appellate level in the Court of Appeal and the Supreme Court
  • Judicial review of regulatory decisions
  • Criminal prosecutions for the cartel offence
  • Specialist expertise in various regulated sectors, including telecommunications (for more information please visit our dedicated Telecommunicationspage), energy, transport and financial services
  • Anti-dumping and other EU trade law issues.

Matrix members have an exceptional range of related expertise in public lawcommercial law and economics, EU and international lawcriminal law and employment law, all of which inform our competition law practice.

Matrix members have acted both for and against regulatory bodies and other public agencies, including the European Commission, the UK Competition and Markets Authority (CMA), and sector regulators such as Ofcom, Ofgem, the Office of Rail and Road (ORR) and the Financial Conduct Authority.

Notable cases

Members at Matrix have been involved in many important competition and regulatory law cases in recent years. For example:

  • Acting for various well known retailers on their large-scale competition law claims against MasterCard and Visa for damages in respect of multilateral interchange fees (currently pending before the Supreme Court).
  • Acting for UK Truck Claims Ltd in an application for permission to bring a collective action in respect of the trucks cartel (pending).
  • Acting for Veolia, Suez and various other claimants in separate damages actions brought in respect of the trucks cartel.
  • Acting for the Department of Transport in a series of related challenges to rail franchising decisions on the West Coast, East Midland and South Eastern franchises.
  • Advising and acting for British Telecommunications (BT) in a range of telecoms and competition matters before Ofcom, the CAT, the Court of Appeal, and in the CJEU, including the digital communications review, the rollout out of superfast broadband and the broadcasting of UEFA Champions League and Europa Cup football.
  • Advising and acting for ORR in a range of regulatory and competition law cases, including a recent judicial review concerning Crossrail and access charging for services to Heathrow Airport.
  • Acting for the owners of Coventry City Football Club challenging two of Coventry City Council’s decisions with respect to its subsidiary, Arena Coventry Limited, as unlawful State aids.
  • Acting for Unlockd, an innovative tech start-up, suing Google for abuse of its dominant position in relation to Google Play and AdMob products and related applications for interim injunctive relief and regarding jurisdiction.
  • Defending Ecotricity, the UK’s leading green electricity company, in a competition law dispute with Tesla in relation to the provision of electric charging services in the UK.
  • Acting for HSBC in the appeal before the CJEU against the EU Commission’s decision finding the multilateral interchange fees set by MasterCard to infringe the prohibition on anti-competitive collusion.
  • Representing the CMA in a major market investigation appeal before the CAT brought by Lafarge Tarmac.
  • Acting for the European Commission before the General Court of the EU in defence of the Commission’s Airfreight cartel decisions in Singapore Airlines v Commission (T‑43/11 and T-350/17).

Leading publications and appointments

  • Bellamy and Child’s European Community Law of Competition(8th ed, 2018) (chapter on abuse of a dominant position)
  • Rhodri and Christopher are the editors (with Ros Kellaway of Eversheds) of UK Competition Law: the New Framework(OUP, 2015), a leading treatise on the various recent reforms to the UK competition law regime. The work includes contributions from various Matrix members on individual criminal liability and on private enforcement of competition law in the domestic courts.
  • O’Kane’s The Law of Criminal Cartels(the chapter on Civil Cartel Investigations in the UK)
  • Montgomery and Ormerod’s Fraud(OUP looseleaf) (both editing and contributing the chapter on cartel investigations and prosecutions)
  • Christopher is also on the Advisory Board of the Competition Law Journal.
  • Christopher and Nicholas are members of the Joint Working Party of the Bars and Law Societies of the UK.
  • Nicholas is on the consulting editorial board of LexisPSL (Competition).

Specialist areas

Matrix has some of the leading practitioners in the field of prosecutions arising out of cartel behaviour. We successfully defended certain British Airways executives accused of having committed the cartel offence in respect of air passenger fuel surcharges.

Other related areas of specialist expertise include due process issues under EU and ECHR law, in respect of which many members of Matrix are well placed to advise and represent clients.


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Christopher Brown
Called: 2002 Called: 2018 (Ireland)
Joanna Buckley
Called: 2011
Edward Craven
Called: 2007
Nicholas Gibson
Called: 2009 Solicitor: 2004
Sarah Hannett
Called: 2003
Rachel Logan
Called: 2008
Zoe McCallum
Called: 2016
Eleni Mitrophanous QC
Called: 1999 Silk 2020
Clare Montgomery QC
Called: 1980 Silk: 1996 Called: 2001 (Northern Ireland)
Helen Mountfield QC
Called: 1991 Silk: 2010
Aidan O’Neill QC (Scot) QC
Called: 1996 Silk: 1999
Ben Silverstone
Called: 2009
Jessica Simor QC
Called: 1992 Silk: 2013
Paul Skinner
Called: 2010
Rhodri Thompson QC
Called: 1989 Silk: 2002
Prof. Takis Tridimas
Called: 2000