UK Guide 2026 : London (Firms)
Ranked Individuals
Provided by Mishcon de Reya LLP
Our well-established & market-leading competition team focus on advising claimants in complex, high-stakes competition litigation. We handle all types of disputes ranging from B2B claims to cutting-edge, consumer class actions. We have extensive settlement experience, recently achieving settlements worth in excess of £500m. We have deep expertise in managing the financial risks of litigation, including third-party funding and alternative fee arrangements. Our lawyers also advise businesses caught up in investigations into alleged competition law breaches, & individuals facing potential criminal sanctions or Director Disqualification. As risk managers, understanding of the processes, and knowledge of the enforcement agencies means that we can advise Boards & individuals in any given situation.
We advise clients on all aspects of merger control law including jurisdictional and strategic assessments, drafting merger notifications, advising third parties on tactical submissions & requests for information from merger control authorities. We advise on foreign investment rules which frequently trigger mandatory filings in the context of a transaction. When market inquiries are launched, we make sure key parties’ submissions are effective & targeted to reduce the risk of problematic outcomes.
We work with our corporate clients to devise pro-active risk management strategies & compliance procedures & test their effectiveness through the use of "mock" dawn raids & business audits.
Provided by Chambers
Mishcon de Reya offers a notable claimant-side practice acting on both collective actions and individual claims. The law firm represents claimants in significant damages actions alleging abuse of dominance or cartel involvement. The team often acts on claims involving defendants in the technology and financial services sectors.
Provided by Chambers
Mishcon de Reya represented Justin Le Patourel as class representative in a collective action against BT alleging abuse of dominance.
Provided by Chambers
We appreciate the honest, sound advice, the thorough process, and the straight talking.
The team has in-depth knowledge of this specialist area of law.
The team's experience of CAT claims is invaluable, as is its ability to talk in layman's terms with other advisers.
The lawyers give quick responses, and are approachable and knowledgeable.
Mishcon has navigated a novel process admirably.
Provided by Chambers
Sarah Houghton stands out for her ability to represent both individual claimants and class representatives in high-profile claims for damages arising from alleged cartels or abuses of dominance. She often acts on claims against financial services companies.
Sarah Houghton is very thorough, gets everything done on time, and has a game plan.
She is really thoughtful, very clever, sound and solid, and fun to work with.
She has excellent judgement, and is able to work diplomatically with class representatives and funders. She kept spirits high over the course of the trial.
Sarah Houghton has market-leading claimant expertise, and is able to navigate complex and novel legal situations, while remaining poised and calm throughout.
She has a really strong tactical sense in a case, so is able to give really clear steer on what are the important issues in a case and which issues you'd want to settle.
Ben Lasserson advises claimants on high-profile collective actions involving damages for alleged cartels and abuses of dominance. He has particular experience in claims against technology companies.
He is always responsive, honest, approachable and his level of service is over and above. His commercial awareness and vision are fantastic.
Ben Lasserson is extremely knowledgable and good natured. He has been so supportive and is always happy to give his time. It is a pleasure to work with him.
He is a good ideas person, who has new ways of thinking of things.
Ben Lasserson is pragmatic, extremely intelligent, down to earth, and gets to the crux of an issue very quickly.
He has a very collaborative approach and helps me to do the best possible job.
Competition Law: Private Enforcement: Claimant
Competition Law: Private Enforcement: Claimant
Provided by Mishcon de Reya LLP
Ben Lasserson
View profile of Ben LassersonSarah Houghton
View profile of Sarah Houghton
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