Department profile
Humphries Kerstetter LLP

Group Litigation: Claimant

UK Guide 2026 : UK-wide


Humphries Kerstetter LLP

Rankings

About

Provided by Humphries Kerstetter LLP

Our mandates are typically for businesses and other organisations as claimants against other businesses (although as a firm we remain generally open to acting for defendants). We work with litigation funders and ATE insurers as appropriate to meet our clients’ requirements and are familiar with market norms for documentation and pricing.


We are currently instructed on behalf of the claimants/proposed class representative in actions concerning Google and Blackmore Bond and are actively engaged in a number of further class actions in technology, data and financial services.


HK has an established reputation in this field, being particularly well-known for acting for and ultimately settling the claims of a large group of 700 merchants, local authorities and others in the interchange fees litigation against Mastercard and Visa. The firm has also worked on the investigation or pursuit of class actions involving a range of fraudulent and reckless investment schemes, failed SIPP and property investments, data breaches, failed tax schemes and ‘stock drop’ claims, amongst other work.


We have the legal knowledge, the funding and insurance connections, and the team strength to handle class actions effectively. This means our clients do not need to pay unless and until recoveries are made and only pay out of those recoveries for our fees and all necessary disbursements. We prepare cases to fight to trial but aim to reach earlier settlements in the interests of all concerned.

Chambers Review

Provided by Chambers

Group Litigation: Claimant - UK-wide

Band 3

Band 3


What the Team is Known For

Humphries Kerstetter is a specialist litigation boutique firm. It demonstrates particular expertise in competition collective proceedings before the Competition Appeal Tribunal, with a key role in the interchange fees litigation. The team also advises on group litigation claims arising out of fraud and failed investment schemes.

Work Highlights

Provided by Chambers

  • Humphries Kerstetter continued to act for a group of Series 1 bondholders in a professional negligence claim against Lonsdale Insurance Brokers following the collapse of property investment company Blackmore Bond.

Strengths

Provided by Chambers

  • They're incredibly high-powered, working at high speed with very high quality.

    Group Litigation: Claimant respondentUK
  • They work very well with clients and are always on top of tactical and strategic issues.

    Group Litigation: Claimant respondentUK

Notable Practitioners

Provided by Chambers

  • Band 3Toby Starr
    Band 3Toby Starr

    Toby Starr

    Toby Starr is a highly experienced commercial litigator. He regularly advises on opt-in and opt-out collective actions in the competition sphere.

    • Toby is a steady hand who is strong on overall strategy.

      Group Litigation: Claimant respondentUK

Ranked Individuals at Humphries Kerstetter LLP (1)

UK-wide

Members

Provided by Humphries Kerstetter LLP

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