Jeffery Onions undertakes a wide range of complex commercial and company law disputes work both as an advocate and in an advisory context. He has particular expertise in banking and finance, company and insolvency, commercial litigation, civil fraud, energy/oil and gas, insurance and reinsurance, shareholder disputes and international arbitration . He also accepts appointments as an arbitrator and expert.
Recent cases include:
Current directory recommendations:
"His analysis is extremely thorough and detailed, he's aware of the commercial drivers for the client, and he thinks about the problem in the round." "He gets stuck in, and he's a heavyweight who is very good on technical points." Commercial Disputes Resolution, Chambers UK 2020
"A huge support to the team throughout and his analysis was extremely forensic." Commercial Litigation, Legal 500 UK 2019-2020
"He is phenomenally intelligent yet client-friendly." "He is always willing to take time to bring people up to speed and is good at handling clients." "He is steeped in the oil and gas industry." Energy & Natural Resources, Chambers UK 2020
Other directory recommendations;
"A formidable opponent – he has a tremendously impressive ability to master complex facts to distil high-quality legal advice.", ‘Extremely client friendly and quick-minded.’, ‘A class act on his feet, very good on the detail and a super cross-examiner.’, "He is incredibly hands-on and user-friendly for a very senior counsel, and his ability to synthesise arguments and present them effectively is very impressive." "He is a very thorough, very courteous and utterly reliable advocate.", "A real authority with years of experience; there's nothing he doesn't know. In court he has real presence and is a great cross-examiner.", "Has formidable technical knowledge, and is a demon cross-examiner." "He rolls up his sleeves and gets completely stuck in.", "He rolls up his sleeves and gets completely stuck in - he is consummately flexible and so immersed in his subject." "He is steeped in the oil and gas industry." "Phenomenally intelligent and very client-friendly.", "He's fantastically hands-on for such a senior leading counsel.", "Phenomenally intelligent yet client-friendly." "He's a very good cross examiner and very hard-working.", "A heavyweight advocate with real clarity of argument and courtroom presence".
Significant and reported cases in specific practice areas are detailed in the full CV.
London One Essex Court
Temple London EC4Y 9AR
Tel +44 (0)20 7583 2000
Fax +44 (0)20 7583 0118
Singapore 28 Maxwell Road
#04-14 Maxwell Chambers Suites
Tel +65 6634 1363
Fax +65 6634 1370