Oliver Cain > ONTIER LLP > London, England > Lawyer Profile

Halton House
20-23 Holborn

Work Department

Dispute Resolution


Oliver is an experienced commercial disputes partner with 25 years’ experience of high-value complex international commercial litigation and arbitration.  He is recognised as a recommended lawyer by the Legal 500 in the fields of Commercial Litigation, International Arbitration and Fraud: Civil.  He is described in the Legal 500 as “highly regarded”, having “a very loyal client basis” and “outstandingly good at delivering a watertight service to clients”.

His work is almost exclusively international and cross-border in nature.  He has been involved in cases involving many different jurisdictions throughout Europe, Asia, the Middle East, Africa, Latin America and North America.  He has handled disputes across a broad range of sectors, including recently matters arising out of or related to accounting, banking and finance, commodities, digital currencies (including Bitcoin), energy, insurance, intellectual property, real estate and shipping.

He has particular expertise in fraud disputes having handled several very large fraud disputes and have published several articles on this topic.

He has considerable experience of international arbitration, including under the auspices of the ICC, LCIA and LMAA as well as ad-hoc arbitration proceedings. 


Oliver joined ONTIER LLP, previously known as SCA ONTIER LLP and SC Andrew LLP, in October 2011. Prior to that he worked for boutique disputes firms Davis & Co and Curtis Davis Garrard, now known as Haynes and Boone CDG, as well as the leading shipping law firm then known as Holmes Hardingham Walser Johnston Winter.


Oliver is an active member of the British-Russian Law Association.


Oliver was called to the Bar in 1994 and qualified as a solicitor in 1998.  He is a graduate of the University of Sheffield (LL.B. Hons) and the Inns of Court School of Law (Bar Vocational Course).

Lawyer Rankings

London > Crime, fraud and licensing > Fraud: civil

Specialists in asset recovery and civil fraud, ONTIER LLP has also recently enhanced its reputation for its work in the digital assets space, including crypto. Oliver Cain leads the practice, leveraging a track record of handling cross-border disputes throughout Europe, the Middle East, Asia, Africa and the Americas; he is supported by Amy Harvey, an expert in interim remedies in addition to tracing and recovering proceeds.

London > Dispute resolution > International arbitration

With a notable track record in mega-value arbitration cases, ONTIER LLP‘s London practice recently hired Aoife Keane as partner from Seddons, while also promoting Felicity Potter to the partnership. Keane has particular expertise in China-related disputes, while Potter’s experience includes acting before various arbitral forums under all the major arbitral rules. A ‘senior partner with huge experience and great client-handling skills‘, Oliver Cain acts in cases throughout Europe, Asia, the Middle East, Africa, Latin America, and North America.

London > Dispute resolution > Commercial litigation: mid-market

ONTIER LLP‘s growing London disputes practice is able to leverage the office’s significant technology disputes practice, which is particularly active in the crypto disputes space. In addition to his fraud disputes credentials, Oliver Cain‘s recent workload encompasses accounting, banking and finance, commodities, digital assets, energy, IT, real estate, and shipping-related claims; Felicity Potter acts in high-value, multi-jurisdictional disputes; and Aoife Keane is an international arbitration and litigation specialist. Senior associate Nicholas Dawson maintains a broad commercial disputes practice.