• All barristers
• Queen's Counsel
• Juniors over 10 years
• Juniors under 10 years
• Pupils
• Clerks
• Clerking team for this barrister

  

Jeffery Onions QC

Recommended in both the Legal 500 and Chambers & Partners for his commercial litigation experience, Jeffery Onions undertakes a wide range of complex commercial work both as an advocate and in an advisory context. He has particular expertise in arbitration, banking, insolvency, insurance, oil and gas and sport/media-related cases. He is a member of the London Common Law and Commercial Bar Association and the Administrative Law Bar Association. He also accepts appointments as an arbitrator.

Solicitors sing the praises of the "pugnacious and direct" Jeffery Onions QC, who is considered "relentless in his pursuit of clients' goals."    Chambers and Partners 2009

Recent cases include:

• Tullet Prebon Plc v BGC Brokers LLP & Anr, Anthony Neil Verrier, Shaun Carl Edgar Lynn & Ors -appeared for tullett prebon, the successful claimants, in the above.  the hearing related to inter dealer brokers and concerns an unlawful conspiracy by a competitor and its executives to induce employees of the claimant to leave the claimant's employment in breach of their contracts of employment based on an "early exit strategy" that involved the assertion of sham constructive dismissal claims, the enforcement of garden leave provisions against those employees and the grant of a "no poach" injunction against the competitor. 
• Centrica v Accenture (Commercial Court) [2009] EWHC 2734 (Comm) and [2009] EWHC 2966 (Comm) - acting for British Gas is its widely publicised dispute with Accenture, in respect of the British Gas customer billing system (instructed by Linklaters). The claim is for over £100m and involves issues of contractual construction, notification and IT and systems issues.
• Tele2 v Post Office - trial of dispute arising out of termination of contract for provision of telecommunications services.

   

  as well as advising in cases involving hedge funds, advising in relation to derivatives (including the construction and effect of isda terms), credit instruments and the construction of contracts involving the production, transportation and sale of oil and gas.  

  other significant and reported cases in specific practice areas are detailed below.