UK Guide 2026 : UK-wide
Ranked Individuals
Provided by Leigh Day
Leigh Day has been at the forefront of UK and international group claims for nearly 30 years. Our work in this area is conducted by our Employment, Human Rights, and International & Group Litigation departments.
Leigh Day currently represents hundreds of thousands of UK vehicle owners against many of the leading vehicle manufacturers. This follows allegations that manufacturers fitted 'defeat' devices to their diesel vehicles to cheat the EU and UK emissions laws.
Our employment department provides the highest quality legal advice and support to enable our employee clients to have their rights recognised. We only act for employees and trade unions reflecting Leigh Day’s commitment to fight for the “Davids” against the “Goliaths”. We are the national leader on equal pay claims, bringing the largest private sector group claims in the jurisdiction.
Provided by Chambers
Leigh Day has a long-standing reputation as one of the leading claimant firms in the UK market, with notable experience handling group litigation. The firm represents claimants across a wide variety of high-profile cases, with particularly strong expertise in environmental and product liability claims.
Provided by Chambers
Leigh Day continued to act for more than 13,000 claimants in the Ogale and Bille Communities in the Niger Delta to bring claims against Shell and its Nigerian subsidiary, SPDC, in relation to environment damage from Shell's oil pipelines.
Provided by Chambers
Leigh Day is the leading firm for claimant group actions. You don't want to be defending claims brought by Leigh Day.
Leigh Day are superb and thoughtful in handling complex, ground-breaking group claims.
A very able team of solicitors handling ground-breaking claims.
Provided by Chambers
Co-founder of the firm Martyn Day is renowned for acting on landmark group litigation, often with human rights, product liability or environmental elements. He represents thousands of claimants against large companies including British American Tobacco and VW.
Martyn has a good eye for what is a good point and a bad point. His charisma and his reputation in this area are second to none.
Daniel Leader has built up expertise in high-profile, often cross-border class actions. He frequently co-leads litigation on the claimant side regarding employment, environmental and consumer matters.
Daniel has done amazing work in environmental damage cases.
Oliver Holland acts for large classes of claimants in group litigation spanning several areas of practice including consumer claims and human rights.
Oliver Holland is completely brilliant. He has a real knack for identifying ground-breaking cases that look very difficult but then winning them.
Richard Meeran is adept at representing large claimant classes in group litigation orders. He often appears in cases concerning environmental damage and human rights.
Richard has pioneered the push for UK companies to be held liable for their activities abroad.
Sapna Malik is a partner at Leigh Day. She is widely recognised for her representation of claimant groups in high-profile international human rights claims before the High Court and frequently acts on matters of public significance.
Sarah Moore represents UK and international claimant groups in environmental and product liability actions. She routinely represents claimants against large multinationals across the oil and gas and pharmaceutical sectors.
Sarah is wonderful.
Group Litigation: Claimant
Group Litigation: Claimant
Group Litigation: Claimant
Group Litigation: Claimant
Group Litigation: Claimant
Group Litigation: Claimant
Provided by Leigh Day
Sarah Moore
View profile of Sarah MooreRichard Meeran
View profile of Richard MeeranMartyn Day
View profile of Martyn DaySapna Malik
View profile of Sapna MalikDaniel Leader
View profile of Daniel LeaderOliver Holland
View profile of Oliver Holland
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