Guildhall Chambers is a leading set on the Western Circuit for professional negligence, with members regularly instructed in complex claims, including matters involving breach of duty, causation and loss, across a wide range of professionals. Hugh Sims KC specialises in the professional liabilities of insolvency practitioners and recently led Jay Jagasia before the Supreme Court in proceedings concerning the interpretation of section 39 of the Financial Services and Markets Act 2000 in the context of unregulated collective investment schemes and regulatory liability. Holly Doyle has a niche practice in claims involving receivers and insolvency practitioners, particularly in relation to office-holder liability.

3PB is well-regarded on the Western Circuit for its professional negligence practice, with members regularly instructed in both contentious and advisory matters, including claims against professionals for breach of contract, breach of trust and breach of fiduciary duty. The set is supported by an experienced clerking team led by David Fielder. Richard Whitehouse is noted for high-value professional negligence disputes across all professions. Christopher Edwards is recognised for his professional indemnity practice, particularly in matters involving solicitors, surveyors and architects.

St John's Chambers is highly regarded for professional negligence, with members regularly instructed in claims against accountants, architects, builders and financial advisers. John Dickinson, a qualified chartered accountant, is particularly noted for his expertise in negligent tax advice. James Pearce-Smith is active across commercial litigation and professional negligence, with a focus on lender claims, and recently acted for claimants in proceedings concerning alleged breaches of duty by suppliers and installers, raising issues as to contractual liability, standard of care, and recoverability of losses in respect of high-value assets.