Department profile
11KBW

Group Litigation

UK Bar Guide 2026 : All Circuits

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11KBW

Rankings

Chambers Review

Provided by Chambers

Group Litigation - All Circuits

Band 3

What the Team is Known For

11KBW is a market-leading set for matters pertaining to data protection, privacy, employment and public law, and has brought that expertise into its group litigation practice. 11KBW's barristers are regularly instructed on behalf of claimants and defendants in significant group claims. One source comments: "The number of recognised expert counsel in data breach work speaks for itself". They have acted in hugely influential cases in the field such as Lloyd v Google. Other recent work highlights include Beck & Others v Police Federation of England & Wales, a class action in connection with a data breach.

Mark Dann is the senior clerk.

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Strengths

Provided by Chambers

  • The clerks at 11KBW have been very helpful, especially Harry Gilson and Martin Pownall.

    Group Litigation respondentUK Bar

  • The clerking team are very helpful, responsive and efficient at sending bills.

    Group Litigation respondentUK Bar

Notable Practitioners

Provided by Chambers

  • Anya Proops
    Anya Proops

    Anya Proops

    Anya Proops KC is a highly regarded silk in the group action space. She has acted in numerous important cases clarifying the law on both group litigation orders and representative actions, typically concerning data privacy. Proops defends tech giants or other major data controllers in such matters.

    • Anya is superb on data and human rights: top class.

      Group Litigation respondentUK Bar

    • She is a subject matter expert on data and privacy, and has become an expert on class action. She just gets how to manage a client relationship and messaging.

      Group Litigation respondentUK Bar

    • A thought leader with a superb balance of pragmatism and academics.

      Group Litigation respondentUK Bar
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  • Marcus Pilgerstorfer
    Marcus Pilgerstorfer

    Marcus Pilgerstorfer

    Marcus Pilgerstorfer KC is a highly regarded silk known for his wealth of experience in group actions. He has notably broad knowledge of the area, having acted for claimants and defendants in cases concerning data privacy, employment and pensions, and medical product liability.

    • Marcus is a very smooth advocate in court. He never seems to get flustered. He may sit quietly but when he speaks everyone thinks, "oh yes, there is the answer".

      Group Litigation respondentUK Bar

    • He is very good on his feet. He's not afraid to challenge, and does so in an appropriate and thoughtful manner which commands respect.

      Group Litigation respondentUK Bar
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  • Rupert Paines
    Rupert Paines

    Rupert Paines

    Rupert Paines has impressive experience taking in some of the most important cases in the field of group litigation, including a number heard by the Supreme Court. He has particular expertise in the data privacy area.

    • Rupert is really incredible - a commercial, practical barrister and specialist in the area of data privacy and related litigation. He rolls up his sleeves and gets into the detail of matters.

      Group Litigation respondentUK Bar

    • Rupert has real gravitas in data protection work, which is a great source of confidence to clients.

      Group Litigation respondentUK Bar

    • Rupert is very sensible, very responsive. He is a real data privacy expert, and because chambers do so many group litigation claims in that area he really understands the strategy of the cases.

      Group Litigation respondentUK Bar
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  • Robin Hopkins
    Robin Hopkins

    Robin Hopkins

    Robin Hopkins is a leading barrister in group litigation and is particularly experienced in the defence of CPR 19.6 representative actions. His expertise in the area focuses on data privacy, including data breaches and the use of personal information by big tech companies.

    • Robin is very user-friendly, excellent with clients, has incredibly broad expertise in the area and is a pleasure to work with at the same time. Highly recommend him.

      Group Litigation respondentUK Bar

    • Robin is a go-to junior for data litigation and is nailing it in this space. He's incredibly bright, fun to deal with and approachable.

      Group Litigation respondentUK Bar
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Ranked Barristers at 11KBW (4)

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