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Bryan Cave Leighton Paisner LLP

Living Wage
Work 020 3400 1000
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Abu Dhabi, Atlanta, Beijing, Berlin, Boulder, Brussels and 33 more

Oran Gelb

Work 020 3400 1000
Bryan Cave Leighton Paisner HRO

Work Department

Commercial dispute resolution.


Partner. Has acted on a wide variety of contentious and regulatory matters, including high value litigation, internal and regulatory investigations, financial crime matters, arbitrations and freezing injunctions. He has particular expertise in advising financial institutions, and their employees, having been on three client secondments to Morgan Stanley, Barclays and The Royal Bank of Scotland. Recent matters include acting for a leading US investment bank on investigations into FX sales and trading activities, acting for a hedge fund in litigation with introducer arising from a contractual dispute, acting for an individual in a cross-border regulatory investigation, the structured finance case of Eurosail which reached the Supreme Court, the widely reported case of Stone v NatWest which considered a bank’s liabilities arising out of a Ponzi fraud and the seminal money laundering case of Shah v HSBC Private Bank. He typically acts for corporates, individuals, banks and funds/asset managers.


He trained at Freshfields and joined BLP in November 2010.


He obtained a first class law degree at University of Birmingham and a distinction in the LPC in BPP London.


He is a keen sports enthusiast and also enjoys film, theatre and political affairs.

London: Corporate and commercial

Financial services

Within: Financial services

Benefiting from 'deep practical experience', Bryan Cave Leighton Paisner LLP is best-known for its contentious expertise and is recognised as a 'strong choice for anyone looking beyond the Magic Circle'. Team head Nathan Willmott is an 'excellent lawyer' and has vast experience at handling regulatory investigations and enforcement actions both from a purely domestic as well as cross-border perspective. 'Hugely experienced' consultant Sidney Myers 'knows the FCA inside out' and has expertise across a wide array of work including in relation to market manipulation of financial benchmarks and insider dealing. At a more junior level, the 'very knowledgeable and hardworking' Oran Gelb is developing a strong reputation across both regulatory investigations and financial services litigation, and the 'tenacious and ambitious' Polly James is 'very strong on market abuse cases'. James is also fairly active on the non-contentious front (particularly in relation to Senior Managers and Certification Regime matters) and is emblematic of the firm's coordinated and fluid approach in relation to advisory work, mindful as it is to mitigate against potential litigious problems further down the line but seamlessly able to handle any issues should they arise. The 'user-friendly and accessible' Daniel Csefalvay joined the team in October 2017 from Linklaters LLP and is noted for his 'excellent working knowledge of the complicated regulatory regimes'. Csefalvay is particularly active in the wholesale market acting for investment banks, broker dealers, high frequency trading firms and market infrastructure providers on critical regulatory reform projects including MiFID ii. Matthew Baker is 'also very good' and regularly supports the firm's funds clients on regulatory issues. Clients include AIG, Aviva and CBRE Global Investors.

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London: Dispute resolution

Banking litigation: investment and retail

Within: Next generation lawyers

Oran Gelb - Bryan Cave Leighton Paisner LLP

Within: Banking litigation: investment and retail

Bryan Cave Leighton Paisner LLP was formed in 2018 from the merger of Berwin Leighton Paisner LLP and Bryan Cave. The practice 'provides an efficient, value-for-money service; it has a close-knit team of litigators and works very well together and with counsel'. Oliver Glynn-Jones heads the firm’s banking litigation team and specialises in all aspects of financial litigation; Glynn-Jones is 'an outstanding all-round litigator with an acute sense of long-term strategy in complex, high-value litigation and he is superb with clients, barristers and opposing solicitors alike'. Segun Osuntokun’s cases arise out of or involve the banking and financial services industry and he heads the firm’s Africa Group. The team acted for Citicorp Trustee Company, as delegate of the issuer and trustee of a $650m Sukuk, in a claim against BNP Paribas for misrepresentation, negligence and breach of contract in its role as arranger, sole bookrunner and lead manager of the Sukuk. It also advised Access Bank, one of the largest banks in Nigeria, on its successful claim against its former CEO and managing director, which claim included allegations of misappropriation of the bank’s funds and the operation of an illegal share purchase scheme. Oran Gelb is also highly rated and Sarah McAtominey and Clare Reeve are notable senior associates.

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Commercial litigation

Within: Next generation lawyers

Oran Gelb - Bryan Cave Leighton Paisner LLP

Within: Commercial litigation

Bryan Cave Leighton Paisner LLP was formed in 2018 from the merger of Berwin Leighton Paisner LLP and Bryan Cave, the latter firm bringing in Mathew Rea, Robert Dougans, counsel Maria Gritsenko and associates Joseph McCormick  and Serena Cooke. The practice 'has an excellent handling of cases', with many of the team's recent highlights including corporate elements such as derivative claims, shareholder disputes and unfair prejudice claims. It acted for BCA Trading in an unfair prejudice claim by the managing director of an acquired company, who remains a minority shareholder; the case involved the practice reportedly securing, for the first time on a contested application, an order for the use of predictive coding technology. The 'strategic' Oliver Glynn-Jones  heads the commercial dispute resolution team; Graham Shear, who 'has a sharp focus on getting the best outcome', heads the international litigation and corporate risk group; Oran Gelb is 'excellent'; and Joby Davies is also a key adviser. Andrew Tuson, who heads the corporate crime practice, is another key name. Sarah McAtominey and Helen Armstrong are notable senior associates.

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London: Risk advisory

Regulatory investigations and corporate crime

Within: Regulatory investigations and corporate crime

Berwin Leighton Paisner and Bryan Cave merged to form Bryan Cave Leighton Paisner LLP¬†in April 2018. The firm acts in the areas of anti-bribery and corruption, anti-money laundering, tax, employment, corporate crime, financial regulation, anti-trust and competition. Working in conjunction with its Russian and Asian offices it offers a full service to international clients, including in-house forensic services. Clients include AIG and Marubeni Corporation. Andrew Tuson¬†heads the team, he is ‚Äėextremely knowledgeable in the general area of financial crime, and particularly market abuse‚Äô. Oran Gelb¬†and Polly James¬†are recommended. Richard Chalk¬†joined as partner from Freshfields Bruckhaus Deringer LLP. Former practice head Aaron Stephens¬†left the firm for King & Spalding LLP.

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Legal Developments by:
Bryan Cave Leighton Paisner HRO

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    Bryan Cave Leighton Paisner (Russia) LLP is acting for Skolkovo resident OOO Double in a dispute with VKontakte over the Client’s use of public data from the social network in a search engine manner. The Double Data software involved was developed by our Client on the basis of its own big data search, storage and mining methods and algorithms.
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