Leigh-Ann Mulcahy KC > Fountain Court Chambers > London, England > Lawyer Profile

Fountain Court Chambers


QC, commercial/international arbitrator and mediator specialising in:

  • Insurance and reinsurance, including business interruption, employer’s liability, public liability, product liability, cyber risks, professional indemnity, financial institutions, directors’ and officers’ liability.
  • Product liability and product recall, including commercial products, food, pharmaceuticals, medical devices, vaccines, blood and chemicals. Specialist in group litigation and cases with complex scientific and technical evidence and regulatory issues.
  • Commercial disputes.
  • Professional liability and professional discipline, including solicitors, barristers, accountants, financial services professionals and insurance brokers.
  • Financial services law and regulation.
  • Public and constitutional law and public inquiries.

Recognised as an appellate advocate. Has acted on behalf of the UK Government in a wide range of cases for over 25 years. Former First Counsel to the Welsh Government 2013-2016.

Recent cases include: Financial Conduct Authority v Arch & ors test case on business interruption insurance and COVID-19 losses [2020] Lloyds’ Rep IR 527 (insurance); claims relating to Hormone Pregnancy Tests (Wilson & ors v Bayer Pharma AG & ors) (product liability); civil litigation arising out of the Grenfell Tower fire (Abdel-Kader & ors v Royal Borough of Kensington and Chelsea & ors [2021] EWHC 2016 (QB); De Costa & ors v The London Fire Commissioner and ors [2020] EWHC 2718 (QB);); Various Claimants v Giambrone and Law [2019] EWHC 34 (QB) (insurance); Goodlife Foods Ltd v Hall Fire Protection Ltd [2018] BLR 491, CA (commercial product liability); Akcine Bendrove Bankas Snoras v Antonov [2018] EWHC 887 (Comm) (commercial; freezing injunction); Redman v Zurich Insurance Plc [2018] 1 WLR 280, QB (insurance); The Khan Partnership v Al-Shanfari & Al-Rawas [2017] 1 WLR 2301 (limitation, solicitors’ negligence); Cape Distribution Ltd v Cape Intermediate Holdings Ltd [2016] EWHC 1786 & [2016] EWHC 1119 (insurance); International Energy Group Ltd v Zurich [2016] AC 509 (insurance); Secretary of State for the Home Department v Raytheon Systems Ltd [2015] 1 Lloyd’s Rep 493 (IT, arbitration appeal); Abbey Forwarding (in Liquidation) v Revenue and Customs Commissioners [2015] Bus LR 882 (insolvency); The PIP Breast Implant Litigation insurance dispute (2015); The Employers’ Liability Insurance Trigger Litigation [2012] 1 WLR 867, SC (insurance); The Atomic Veterans Litigation [2012] 2 WLR 643, SC (product liability, limitation); The Miners’ Knee Litigation [2012] EWCA Civ 1380 (limitation, group litigation).


Called to Bar of England & Wales 1993 & Bar of Republic of Ireland 1998. Appointed QC 2009. Treasury Counsel (A Panel) 2006-2009. First Counsel to the Welsh Government 2013-2016. President of the Panel of Senior Decision-Makers, Guernsey Financial Services Commission 2021-date. Senior Decision-Maker for Guernsey Financial Services Commission 2014-2020. Deputy High Court Judge 2016-date. Bencher of Inner Temple 2018-date. Director of Bar Mutual Indemnity Fund Ltd 2011-2016. Fellow of the Royal Statistical Society 2017-date. CEDR accredited mediator.


Editor ‘Jackson and Powell on Professional Liability’ (6th & 7th eds); Consulting Editor ‘The Law and Regulation of Medicines’ (1st ed); Contributor ‘The Law and Regulation of Medicines & Medical Devices’ (2nd ed) (forthcoming); General Editor ‘Human Rights and Civil Practice’.




MA (Cantab); LLM (Osgoode, Canada); Dip. EC Law (Kings, London).

Lawyer Rankings

Asia Pacific - The English Bar > Commercial

(Leading Silks)Ranked: Tier 2

Leigh-Ann Mulcahy QCFountain Court ChambersShe has the ability to distill the issues succinctly and lay out the options for the client.

Noted as ‘fast and efficient‘, Fountain Court Chambers has ‘incredible range and quality across the entire team‘. It has a strong annexe in Singapore, a jurisdiction which it has connections spanning decades,  led by Andrew Pullen. Other London-based key names include Stephen Moriarty QC, who has a breadth of experience in the Singapore International Commercial Court and SIAC arbitrations, and Timothy Howe QC who counts shareholder and M&A disputes among his areas of expertise.  Leigh-Ann Mulcahy QC has specialist expertise in insurance, contractual and IT disputes, while Anneliese Day QC splits her time between commercial and construction matters. The set continues to strengthen its Asian coverage with the addition of Hong Kong-based Matt Gearing QC (who is also qualified as a solicitor-advocate in the SAR) who joined from Allen & Overy in 2021.

London Bar > Insurance and reinsurance

(Leading Silks)Ranked: Tier 2

Leigh-Ann Mulcahy KCFountain Court ChambersLeigh-Ann encapsulates everything you want in a barrister – and others would do well to take a leaf from her book. She provides clear, pragmatic advice that guides the reader through the legal principles and strategic considerations, and which offers a practical way forward.  Importantly, she is also responsive and quick to address points arising.  Reassuringly unflappable, Leigh-Ann impresses with her ability to handle challenging clients, field difficult questions, and absorb new information, taking it all in her stride without missing a beat. Highly recommended.

Fountain Court Chambers is ‘a fantastic set for insurance coverage disputes at all levels‘. The set acts in relation to various classes of insurance, including property and business interruption, directors’ and officers’ liability, and product and employer’s liability. Other key areas include political risk, trade credit, professional indemnity, contractors all risk, and warranty and indemnity insurance. David Railton KC routinely acts in some of the market’s largest incidents and losses; and further to her involvement in the COVID-19 lockdown business interruption-related FCA Test Case, Leigh-Ann Mulcahy KC is currently acting in Various Eateries Trading v Allianz, a pandemic-related claim for indemnity under a business interruption policy for losses resulting from the hospitality industry’s closure.

London Bar > Product liability

(Leading Silks)Ranked: Tier 1

Leigh-Ann Mulcahy KCFountain Court Chambers

Fountain Court Chambers has a wide range of expertise across different levels of seniority. In particular, the set has experience with large pharmaceuticals, consumer product group actions and complex claims in the insurance and aviation sectors; the latter is an area of focus for Akhil Shah KC. Leigh-Ann Mulcahy KC is regularly instructed by the government and has a wide range of advocacy and appeal experience.

London Bar > Group litigation

(Leading Silks)Ranked: Tier 1

Leigh-Ann Mulcahy KCFountain Court Chambers ‘Leigh-Ann leads her teams in the most complex multi-party actions with enviable clarity, strategy and excellent communication skills.’

London Bar > Professional negligence

(Leading Silks)Ranked: Tier 4

Leigh-Ann Mulcahy KCFountain Court ChambersA highly intelligent silk, who is a very reassuring presence in conference. She is very easy to work with.

London Bar > Administrative and public law (including elections)

(Leading Silks)Ranked: Tier 3

Leigh-Ann Mulcahy KCFountain Court Chambers