A pre-eminent set for group litigation, Henderson Chambers is equipped to advise on a variety of claims, including those related to product liability, environmental law, and human rights abuse. With numerous members – including Charles Gibson KC, Oliver Campbell KC, and Geraint Webb KC – continuing to act in a variety of emissions-related proceedings, the set is also lauded for providing clients with noteworthy knowledge of commercial funding and mass settlement mechanisms. Prashant Popat KC is instructed for AstraZeneca regarding claims issued by people claiming injuries and death caused by the company’s Covid-19 vaccine. Adam Heppinstall KC acts in a modern slavery group action against Tesco in relation to garment manufacturing in Thailand. Ognjen Miletic‘s busy workload extends to representing the claimant group that alleges deceit, unlawful means conspiracy and negligence regarding a property development scheme for leasehold properties intended to be sub-let for use as holiday and student accommodation.

Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

  • 'Knowledgeable and helpful. Jason Housden excels.'
  • 'They are the best clerking team in the City - collaborative and fully reflective of the collegiate culture of this set.  They treat junior solicitors with the same respect as partners, which is one reason why solicitors instruct them repeatedly.  Jason Housden is a force of nature - kind, empathetic, highly business-minded and a great ambassador for the set.  Daniel Kemp is cut from exactly the same cloth.'
  • 'Henderson is the best set for large-scale group actions and mass claims in London.  Their track record in this area speaks volumes - they have been in almost every novel and high-profile group claim over the past 20 years, and their expertise in ESG, consumer and commercial litigation - particularly claims of very large scale - is unrivalled.'
  • 'Henderson Chambers has an enviable reputation in these fields with a range of excellent advocates.'
  • ''Henderson is excellent, especially on group litigation with a depth of talent and experience from barristers who have acted on both sides of many of the major group cases.'  
  • 'Henderson are without doubt at the top of their game in this field. A fantastic set of silks with an unrivalled junior bench to support them.
  • 'An amazing set.'
  • 'Henderson Chambers is the leading set for group actions.  It has greater strength in depth than any other chambers.'

Silks

Leading Silks
KCs at the very top of their field, with a long-established record of market-defining cases, and widespread endorsement from clients and peers. All silks appointed in the last two rounds are listed further below.
Oliver Campbell KC
1
Oliver Campbell KC
Henderson Chambers
‘Oliver is without doubt one of the standout silks in this space, absolutely at the top of his game. He has a deep strategic insight into group cases and the behaviour of defendants, and a clarity of thought that cuts through the strategic complexity. He is a brilliant advocate with a lovely relaxed style that judges appreciate.’
Patrick Green KC
2
Patrick Green KC
Henderson Chambers
‘Patrick's ability to hold a room and his deep and abiding expertise stand out. His work in particular on the Post Office Group Litigation gave him an incredibly insightful perspective, and his authority and gravitas in this area of work shone through.'
Adam Heppinstall KC
2
Adam Heppinstall KC
Henderson Chambers
'Adam is a calm, persuasive and charming advocate - really excellent on his feet. As leader of a team on a large complex case, he is responsive, helpful, practical - a reassuring presence who provides robust, commercial advice. Adam truly is an expert on group action practice and procedure and is able to read judges extremely well. He is a pleasure to work with and always adds value.'
Toby Riley-Smith KC
2
Toby Riley-Smith KC
Henderson Chambers
 ‘Toby has excellent experience in all the major product liability group actions over the last two decades. He has an impeccable eye for detail, a calm and sensible approach to problems and an attractive advocacy style. He is one of the currently one of the most sought after players in the field.’
Andrew Kinnier KC
3
Andrew Kinnier KC
Henderson Chambers
 'Andrew is a rarity among KCs, he is ultra-approachable with clients and queries. Yet, when it comes to the court he is a goliath of an advocate. During cross-examination, he can gain the trust of a witness, only to unleash a serrated edge when the next witness in line is obstructive. '
2023 Silks
KCs at the very top of their field, with a long-established record of market-defining cases, and widespread endorsement from clients and peers. All silks appointed in the last two rounds are listed further below.
Kathleen Donnelly KC
Kathleen Donnelly KC
Henderson Chambers
‘Kathleen is great to work with. She has a down-to-earth, practical and commercial approach which is invaluable in an area of practice that requires careful strategic planning in negotiating large claimant groups and their legal teams. Her advice is sound and provided in an extremely accessible and efficient way – she cuts to the chase. Her advocacy is robust and targeted to the points that really matter.’

Juniors

Leading Juniors
Leading juniors are those with significant experience of key cases, strong market recognition from both peers and clients, and are seen as future candidates for silk.
James Purnell
2
James Purnell
Henderson Chambers
'James is the consummate senior junior.  He is very hard working and has excellent judgement combined with a persuasive oral style.'
Lucy McCormick
2
Lucy McCormick
Henderson Chambers
‘Lucy works very hard and has a strong eye for the detail. She is responsive and works well in a team. She has excellent judgement in complex multi-party cases.'
Ognjen Miletic
2
Ognjen Miletic
Henderson Chambers
‘Ognjen has great judgement and a fantastic feel for group action procedure.'
Rachel Tandy
2
Rachel Tandy
Henderson Chambers
‘Rachel is excellent in every way. She is incredibly hard-working, and fully commits herself to all her cases.’