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Bryan Cave Leighton Paisner LLP

Living Wage
Work 020 3400 1000
Fax 020 3400 1111
Abu Dhabi, Atlanta, Beijing, Berlin, Boulder, Brussels and 33 more

Segun Osuntokun

Work 020 3400 4619
Bryan Cave Leighton Paisner HRO

Work Department

Litigation and corporate risk.


Partner who specialises in resolving complex disputes and claims, many of which have elements of dishonesty, fraud or corruption. He has particular expertise in the energy (oil and gas) and banking and financial services industries. He has also acted for state governments, telecommunication and energy companies, international conglomerates and high-net-worth individuals in cases concerning, for example, grand-scale embezzlement of state funds, the breach of management, shareholders’ and power purchase agreements, the recovery of the proceeds of fraud, and the enforcement of security. His cases often involve urgent applications to the English High Court for interim worldwide freezing injunctions and disclosure orders.


Trained Wilde Sapte; qualified 1993; Wilde Sapte 1991-97; Eversheds 1997-99; DLA Piper 1999-2008; partner 2003; partner Berwin Leighton Paisner 2008. Contributing editor to Butterworths’ ‘Money Laundering Law’.




British Nigeria Law Forum. Oriental Club (London) 


International School, Ibadan, Nigeria; Queen Mary, University of London (Bsc economics 2(1)); Balliol College, Oxford (BA jurisprudence 2(1)).


Running, polo.

London: Crime, fraud and licensing

Fraud: civil

Within: Leading individuals

Segun Osuntokun - Bryan Cave Leighton Paisner LLP

Within: Fraud: civil

Berwin Leighton Paisner LLP and Bryan Cave merged to form Bryan Cave Leighton Paisner LLP¬†in April 2018. The firm is adept at handling multi-jurisdictional cases involving freezing injunctions and other interim relief, it acts for blue-chip clients, leading financial institutions and high-net-worth individuals. It continues to act for the Nigerian Access Bank in a claim against a former CEO relating to misappropriation of funds, this matter is worth over ¬£900m. Segun Osuntokun¬†heads the team, he is ‚Äėa hugely impressive individual who inspires confidence amongst clients and his legal team‚Äô. Graham Shear¬†is ‚Äėtough and good at handling difficult clients‚Äô, senior associate Sarah McAtominey¬†and associate director Sharon Kennedy¬†are also recommended.

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London: Dispute resolution

Banking litigation: investment and retail

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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London: Projects, energy and natural resources

Power (including electricity and renewables)

Within: Power (including electricity and renewables)

The 'easy to work with' and 'competent' power team at Bryan Cave Leighton Paisner LLP is recommended by clients for energy-from-waste projects especially with regards to the contractual and construction aspects. The firm acts for clients such as National Grid, Ancala and major retailers in matters across the energy supply chain under the leadership of Adam Dann . Recently, Dann and Kiran Arora advised EDFES - a joint venture between EDF and Dalkia - on its acquisition of Imtech from Endless, and Mark Richards is currently assisting the University of Cambridge with all aspects of utility provision at the North West Cambridge Development. Ed Coulson and Andrew Hockley continue to represent National Grid and Scottish Power in their respective claims for damages arising from alleged overcharges paid for the purchase of high voltage power cables following the EU's 2014 cartel decision. The firm's energy disputes practice is spearheaded by Segun Osuntokun while Christian Drage specialises in planning issues.

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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.
    - Bryan Cave Leighton Paisner LLP

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