Skip to content
Hendersons - Barristers' Chambers

Group Actions

"The go-to group action specialists"

Henderson Chambers is recognised in both Chambers UK Bar and the Legal 500 as the unrivalled leading set for group litigation. Recognised by clients as “the go-to … group action specialists”. Chambers UK Bar comments that chambers has “an unrivalled ability to handle the most complex and sophisticated group litigation matters”, noting further “the set’s celebrated barristers routinely appear in the most high-profile and complex group litigation cases.”. The Legal 500 comments “it is rare to find a key [group action] case without representation” from Henderson Chambers who have “established themselves as leading practitioners in the field”.

We have been instructed in most of the leading group actions issued in the English courts. Henderson Chambers has been at the forefront of the development of the law and practice in relation to group litigation orders and group actions, as well as representative actions and other collective redress actions.

The group actions that members of Chambers have acted in cover a wide range of different types of claim, including: product liability claims; environmental and pollutions claims; group actions arising out of large accidents and disasters; group actions brought by foreign nationals against UK registered companies; collective competition claims; group actions brought by consumers and under the Consumer Credit Act; data protection actions; group actions in respect of industrial disease litigation; employees claiming wrongful dismissal due to defective technology relied upon by the employer; group actions in respect of historic physical, sexual and financial abuse and group actions arising out of the mis-selling of financial and other products. Members of Chambers have become expert in advising in relation to the obtaining of group litigation orders, the structure and management of group actions, and in relation to the funding of group actions.

Several members of Chambers are engaged in writing the second edition of Multi-Party Actions, edited by Prof C. Hodges and Geraint Webb KC.

In 2023, Charles Gibson KC was named the Legal 500 Group Action and Consumer Silk of the Year. In 2022 Chambers won both Set of the Year for Group Litigation and Consumer and Celia Oldham was named Junior of the Year at the Legal 500 Bar Awards.

Add to shortlist

Contact the Group Actions clerking team.

If you require help or advice please contact our clerking team.

Call - +44 (0)20 7583 9020
or email our clerks

Representative cases

grid list
  • VW NOx Diesel Emissions Litigation (ongoing)

    Group Action arising from noxious car emissions

  • Municipo de Mariana v BHP Group PLC ([2020] EWHC 2930 (TCC)

    The High Court has struck out claims brought by more than 200,000 Brazilian claimants in the English courts against British and Australian holding companies in relation to the collapse of the Fundao Dam in Brazil in 2015. Details here

  • Seroxat Group Litigation Bailey and others v GlaxoSmithKline [2020] EWHC 1766 (QB)

    Seroxat Litigation: Judgment for GSK with indemnity costs and £4.5m interim payment in landmark product liability group action success (July 2020). Details here

  • The Post Office Group Litigation (2018/2019 - TCC)

    One of The Lawyer’s Top 20 Cases, Civil Litigation Brief ‘case of the year’ 2019

    Final judgment in the Post Office Group Litigation (December 2019)

    Representing over 500 current and former postmasters in a widely publicised Group Action against Post Office to recover business losses said to result from failures in Post Office’s Horizon electronic point of sales (EPOS) and accounting system.  Widely reported: BBC, Daily Mail, FT and Joshua Rozenberg.

    Leading judgment ([2019] EWHC 606) on the developing field of relational contracts and duties of good faith in commercial contracts and on range of other complex contractual and agency issues.  Successful judgment following trial of IT expert issues in 2019 ([2019] EWHC 3408). Further judgment ([2019] EWHC 871) with respect to failed application by Post Office to recuse a Managing Judge in Group Litigation.

  • AAA & Others v Unilever PLC [2018] EWCA Civ 1532

    AAA & Others v Unilever PLC 

    Jurisdiction decision, the Court of Appeal (Lady Justice Gloster, Lord Justice Sales and Lord Justice Newey) has decided that Unilever’s Kenyan subsidiary should not face claims in England and Wales based on injuries suffered by visitors to and on its tea plantation in Kenya (arising out of Post- Election Violence, at the hands of third parties, in 2007.)

  • Google Data Breach Class Action
    Google Data Breach Class Action

    A representative action on behalf of approximately 5.4 million iPhone users issued against Google November 2017.

Group Actions Barristers

Charles Gibson KC
Call: 1984 Silk: 2001

Lawrence West KC
Call: 1979 Silk: 2003

Prashant Popat KC
Call: 1992 Silk: 2008

Professor Sir Alan Dashwood KC
Call: 1969 Silk: 2010

Patrick Green KC
Call: 1990 Silk: 2012

Geraint Webb KC
Call: 1995 Silk: 2013

Oliver Campbell KC
Call: 1992 Silk: 2014

Malcolm Sheehan KC
Call: 1993 Silk: 2015

Toby Riley-Smith KC
Call: 1995 Silk: 2016

Andrew Kinnier KC
Call: 1996 Silk: 2018

Henry Warwick KC
Call: 2007 (Solicitor: 2000) Silk: 2020

Angus Withington KC
Call: 1995 Silk: 2021

Adam Heppinstall KC
Call: 1999 Silk: 2021

Kathleen Donnelly KC
Call: 2005 Silk: 2023

William Hibbert
Call: 1979

Julia Smith
Call: 1988

Noel Dilworth
Call: 2001

James Purnell
Call: 2002

Nazeer Chowdhury
Call: 2002

Abigail Cohen
Call: 2005

Thomas Evans
Call: 2008

Lucy McCormick
Call: 2008

Thomas Samuels
Call: 2009

Hannah Curtain
Call: 2010

James Williams
Call: 2010 (Solicitor: 2008)

Rachel Tandy
Call: 2010

Ognjen Miletic
Call: 2010

George Mallet
Call: 2012

Lia Moses
Call: 2014

Arnold Ayoo
Call: 2014

James White
Call: 2014

Celia Oldham
Call: 2015

Reanne MacKenzie
Call: 2016

Harrison Denner
Call: 2016

Beatrice Graham
Call: 2016

Freya Foster
Call: 2017

Ben Norton
Call: 2017

Jack Castle
Call: 2018

Thomas Mallon
Call: 2019

William Moody
Call: 2020

Douglas Maxwell
Call: 2021

Isha Shakir
Call: 2022

Kate Gardiner
Call: 2022

Shortlist Builder


Select the Expertise that you would like to download or add to the shortlist

Download Add to shortlist
Shortlist close
Title Type CV

Remove All


Click here to email this list.