With ‘fantastic strength in depth and large number of extremely impressive barristers’, Monckton Chambers leads on competition law matters spanning from fast-track competition and damages claims to mergers, appeals and judicial reviews. ‘At the top of the field in competition litigation’, Jon Turner KC led on behalf of the CMA in the Court of Appeal in an appeal following that with major ramifications concerning the extent of the powers of the CAT in CMA v Allergan and others, and ‘strategic mastermind of the highest order’ Daniel Beard KC acted for Intel in Intel vs. European Commission, obtaining a success with the CJEU rejecting an appeal of the annulment of an alleged abuse of dominance fine valued over £1bn. ‘A great tactician with a clear sense of strategy’, Ronit Kreisberger KC is instructed in two separate major collective proceedings concerning abuse of dominance claims against Google and Apple, and Meredith Pickford KC led on behalf of Amazon in Riefa v Amazon & Apple, becoming the first British barrister to cross-examine a proposed class representative at a hearing requesting a collective proceedings order. ‘First rate’, Philip Moser KC is advising on follow-on damages litigation for 135 claimants in the second wave of the Trucks cartel cases, expected to go to trial in 2025.

‘A leading set for competition law, with a number of trusted barristers’, Blackstone Chambers has been prominent in many of the largest and most important regulatory and enforcement cases. ‘At the top of the competition Bar’, Brian Kennelly KC has recent experience in major domestic and European damages claims, collective proceedings, merger cases and enforcement matters for major clients in technology and the automotive industry, and Thomas de la Mare KC has led in the Dieselgate litigation concerning a technology suppression cartel. ‘Fantastic and effective’, Kieron Beal KC is regularly seen before the CAT and the GCEU, and acted for the claimants in the highly complex and long-running Umbrella Interchange Fee Claimants vs Visa and MasterCard proceedings. Hanif Mussa KC has been praised for his ‘wonderful ability to see through to what matters in a case’, and in the last year led the advocacy for the defendants in Granville Technology Limited & ors. v LD Display Co Ltd & ors., with a successful result ending in claimants receiving less than 2% of their original claim. Jason Pobjoy KC and Naina Patel KC took silk in 2025, and both have rapidly developing competition law practices.

‘Highly esteemed for its leadership in handling both competition and competition-adjacent claims’, members of Brick Court Chambers remain at the forefront of the most prominent matters in competition law across a variety of courts and tribunals. ‘One of the most outstanding barristers of her generation’, Marie Demetriou KC led proceedings on behalf of millions of consumers in Merricks vs Mastercard, the first collective action to be certified, in a four-day appeal in the Court of Appeal, while Sarah Ford KC represented Mark McLaren Class Representative Limited on the second ever collective proceedings to reach trial following the CAT’s decision to make its first ever Collective Settlement Approval Order. The ‘creative and fantastically adaptable’ Daniel Jowell KC was successful in the high-profile and cross-border Epic Games vs Google matter, in obtaining permission for the claimant to allege excessive pricing by the technology giant for use of its app store, and Mark Hoskins KC was instructed to lead for a class representative in collective proceedings against Apple in litigation concerning its app store. An ‘exceptionally strong advocate’, Tony Singla KC led on behalf the defendant in Gormsen vs Meta in hearings at the CAT and the Court of Appeal in a class action valued around £3bn.

Matrix Chambers is prominent in the field of competition law, integrating established strengths in related practice areas to lead on major collective action proceedings, CAT appeals, and complex regulatory matters. The ‘exceptionally smart and thorough’ Rhodri Thompson KC leads on prominent collective proceedings and has acted on six proceedings on behalf of the class representative in damages claims against water companies based on claims of abuse of dominance. Prominent competition law juniors include Christopher Brown, who represented Lloyds Banking Group against the Federal Deposit Insurance Corporation in a competition damages claim concerning collusion between banks over LIBOR, and Nicholas Gibson, whose broad practice has recently included appearing unled for the Competition and Markets Authority in interventions into major collective actions proceedings. The strength in depth of the chambers’ competition practice at the junior level was greatly increased in the last year by the arrivals of the ‘clear, forceful and convincing’ Suzanne Rab, who recently acted against Mastercard and Visa in collective proceedings in the CAT, and the ‘very helpful and very commercial’ Matthew O’Regan, who has a particular specialty in competition law elements of merger control cases.

‘Developing a best-in-class competition practice’, One Essex Court is an increasingly prominent set in large cases of competition litigation. Conall Patton KC has represented the defendant in Federal Deposit Insurance Corporation v Cooperative Rabobank UA, a matter concerning accusations of unlawful collusion between financial institutions concerning LIBOR, in a number of CMCs. Matthew Cook KC and Sonia Tolaney KC have both been recently instructed by Mastercard on a number of high-value and prominent CAT proceedings, integrating existing practices in banking and commercial litigation. At the junior level, Derek Spitz acted for the class representative in the Le Patourel v BT case, and the ‘sensible, pragmatic, fiercely intelligent’ Oscar Schonfeld is currently instructed by prominent defendants in the long-running trucks litigation, which is due to have further trials in 2026.