Daniel Ryan is a managing director at Berkeley Research Group, where he leads the London office. Mr Ryan has over 25 years’ experience in quantifying damages arising out of claims in contract, or tort, and in valuing businesses and shares in both contentious and non-contentious matters. He is also highly experienced in intellectual property licensing, infringement of intellectual property rights, fiscal valuation and transfer pricing. He is regularly appointed as an expert witness and is experienced in oral testimony. His experience covers matters in the UK High Court, before arbitral tribunals in the UK and internationally, in fiscal courts, and before the Copyright Tribunal.

Marina Boterashvili is a Partner in Quinn Emanuel’s London office. She specialises in complex litigation and arbitration, with an emphasis on civil fraud, financial litigation and joint venture and shareholder disputes.

Marina has particular experience managing complex and high value disputes with a significant cross-border element, particularly involving offshore jurisdictions, Eastern Europe, the Middle East and Africa. Her clients include multinational corporations, high net worth individuals and sovereign governments in cases arising across a range of sectors, including telecommunications, energy and natural resources, pharmaceuticals and financial services.

Marina also has extensive experience in applying for and resisting applications for interim relief in the English, Cyprus and BVI courts, including anti-suit injunctions, and pre-and post-judgment asset freezing relief.

Marina’s arbitration experience includes acting on arbitrations under the UNCITRAL, ICSID, SCC, LCIA and ICC Rules, as well as a number of ad hoc arbitrations.

Described in Legal500 as “very talented and always calm and in control”, Marina is recommended in a number of practice areas, including: (i) Civil Fraud; (ii) Commercial Litigation; (iii) Banking Litigation; and (iv) International Arbitration.  

In 2022, Marina was featured as a ‘next generation’ arbitration practitioner by Legal Business Magazine. In 2023, she was recognised as a 2023 Rising Star by Law.com in its list of the UK's Best Up and Coming Female Lawyers aged under 40.

Marina is fluent in English, French, Russian, Dutch and Hebrew.

Andrew is a Partner in the Commercial Litigation team. A pragmatic lawyer with strong judgement, remaining calm under pressure to provide clients with the most practical, commercially focused advice. He is an experienced litigator having advised clients in a number of high profile and complex matters. He advises clients across a number of sectors such as financial services, healthcare, construction, technology and insurance. He also has experience acting for governments and state organisations. He has a particular focus on English court proceedings, but also has significant experience of public inquiries, investigations (both regulatory and internal), mediations and crisis management. Andrew holds a particular interest in environmental / climate change strategic litigation and has recently advised a number of environmental organisations in bringing a landmark complaint with the OECD against a large UK power plant operator. Andrew was recognised as a key lawyer in the Legal 500 2021 described as "extremely clever and sensible. Definitely one to watch for the future."

Nicholas is an Australian Qualified Senior Associate in the Dispute Resolution Group.  He has a broad practice representing a range of clients, including financial institutions, funds, major corporates, shareholders, and high-net worth individuals in complex, high value, domestic and multi-jurisdictional commercial disputes.  Nicholas has particular expertise acting in relation to high and ultra-high net worth individuals and family offices, in shareholder disputes, in disputes involving allegations of fraud, conspiracy, misconduct or professional negligence, and advising clients who need to manage regulatory and criminal investigations in parallel with related commercial litigation. 

Andrew Webb is a managing director in BRG’s London and Singapore offices and has over thirty years of global, top-tier experience in the mining and natural resources sector.

A former managing director at a leading global investment bank and company board director, Mr. Webb leverages his unique combination of transactional and industry experience to provide resources industry and valuation and damages expert services to law firms and their clients. He has experience advising on disputes, including acting as the lead expert on a multibillion-dollar damages claim in the mining sector in the Asia–Pacific region.

During a twenty-five-year investment banking career, Mr. Webb advised governments, private companies, and joint ventures on strategy, fundraisings, debt financings, mergers, acquisitions, disposals, and restructurings with a combined deal value in excess of $25 billion. He developed a deep understanding of the mining value chain, from extraction to delivery to market, and a familiarity with many types of resources, including iron ore, gold, nickel, silver, zinc, copper, lithium, titanium, and potash.

Mr. Webb has acted as trusted advisor to many of the world’s leading mining companies. His experience spans the Americas, Africa, Asia, Western and Eastern Europe, and Eurasia. Within these regions, he has direct experience in over fifty countries.