Ms Sinead O’Callaghan > Cooke, Young & Keidan LLP > London, England > Lawyer Profile

Cooke, Young & Keidan LLP

Work Department

Dispute Resolution; Litigation; Banking Litigation; Civil:Fraud; International Arbitration; Partnership


Managing, Partner


Trained at Theodore Goddard; Associate at Addleshaw Goddard; Senior Associate at Mayer Brown International LLP; Senior Associate then Partner at Cooke, Young & Keidan LLP.


Sinead is a member of the Law Society of England and Wales, Financial Services Lawyers Associate, the Young International Arbitration Group and the Irish International Business Network


University of Bristol

Lawyer Rankings

London > Dispute resolution > Banking litigation: investment and retail

(Leading individuals)

Sinead O’CallaghanCooke, Young & Keidan LLP

Cooke, Young & Keidan LLP  is well-known for its work acting for clients in litigation against major banks, including representing them in both arbitration and court proceedings. The litigation boutique is adept at handling claims of misrepresentation, misselling and fraud, including follow-on proceedings from regulatory action, and also defends clients against enforcement proceedings brought by banks.  Elsewhere, the practice has a growing presence in disputes pertaining to fintech and cryptocurrency. Key figures in the practice include Sinead O’Callaghan, who has expertise handling disputes pertaining to a broad range of financial instruments; and Stephen Elam, who gets ‘to the kernal of an issue’ and draws on his past experience in-house at a derivatives brokerage to act on matters involving complex products. The practice brought on Natalie Todd and Jon Felce from PCB Byrne in April 2022, both of whom win praise from clients. Philip Young, a ‘doyen of the London boutique litigation market’, is now a consultant to the firm and taking a mid-career break.

London > Dispute resolution > International arbitration

The international arbitration practice at specialist commercial and financial disputes boutique Cooke, Young & Keidan LLP, covers commercial arbitrations and enforcement of awards, as well as bringing and defending challenges to awards. Daniel Burbeary is experienced in cross-border commercial disputes involving parties from China and former CIS countries, while Sinead O’Callaghan specialises in substantial, high-value commercial disputes. Mikhail Vishnyakov joined as counsel from Linklaters LLP during 2021, while Irina Buydova is ‘the senior associate to watch’. Consultant Philip Young – ‘an exceptional intellect‘ – is currently taking a mid-career break.

London > Dispute resolution > Commercial litigation: premium

(Leading individuals)

Sinead O’CallaghanCooke, Young & Keidan LLP

Litigation boutique Cooke, Young & Keidan LLP has the ‘experience and aptitude to take on and win against the biggest players‘. Utilising its commercial and banking expertise, as well as its increasing technology capabilities, the firm has continued to cement its reputation for fintech and venture capital-related disputes. Sinead O’Callaghan, Stephen Elam and Lydia Danon are the key senior contacts. Consultant Philip Young – ‘an exceptional intellect‘ – is currently taking a mid-career break.