Firm Profile > Arnold & Porter > London, England

Arnold & Porter

Product liability: defendant Tier 1

Arnold & Porter has a strong market reputation in product liability matters, in particular cases which leverage its life sciences practice. The team fields specialists with additional qualifications in medicine, toxicology and pharmacy, among others. It is instructed in group actions and individual claims, investigations and public inquiries as well as in safety and recall matters. Practice head Ian Dodds-Smith is regarded as an expert in the field, with considerable knowledge of matters relating to the European Union. Adela Williams is well versed in advising on clinical trials, marketing authorisations, and advertising and promotional matters. Jacqueline Mulryne, Lincoln Tsang and counsel Tom Fox are also noted.

Life sciences and healthcare Tier 2

Arnold & Porter's group is widely acknowledged for its 'unparalleled grasp of international, EU and UK regulatory regimes'.The 'impressive' Ian Dodds-Smith and Jacqueline Mulryne are among the key practitioners at the firm, together with the 'fabulous' Lincoln Tsang. The team handles all aspects of pharmaceuticals, medical devices, food and CBD medicines, both in the context of advisory work and in disputes. It also has a wealth of product liability, IP, competition, data protection and transactional experience. Adela Williams has expertise in regulatory matters and product liability claims, and is knowledgeable about pricing and reimbursement issues. Beatriz San Martin, who joined from Fieldfisher in October 2019, advises on IP matters. Another name to note is Ewan Townsend, whose work includes licences, collaborations and clinical trial agreements.

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‘Essentially from a transactional, regulatory and scientific perspective very much one of the go to teams in London and the east coast.’

‘Unparalleled grasp of international, EU and UK regulatory regimes; a first point of contact for navigating breakthrough legal solutions to new challenges.  Many partners have life science degrees and have worked for both both EMA and MHRA which enhances their ability to understand client problem in the bio-pharmaceutical space.’

‘Ian Dodds-Smith is the dean of regulatory.’

Litigator Lincoln Tsang – combines prior experience as a regulator, life sciences doctorate and with a practical blend.’ 

Lincoln Tsang is superb at getting medicinal products approved.

‘Adela Williams is  a qualified doctor with deep experience in market access and pricing issues.’

‘Ian Dodds-Smith and Jacqueline Mulryne are both impressive.

Key clients


Orion Inc



Santen Pharmaceuticals (One of the world’s largest cannabis companies)

Clovis Oncology


Bristol-Myers Squibb

Global Pharma Company

Boston Scientific

Global Originator Pharmaceutical Company

Roche Diagnostics Limited

Richford Family – Pro Bono Clinical Inquest

Public international law Tier 2

Regularly acting in cases which make the headlines and are politically charged, Arnold & Porter 'has an outstanding team for PIL work'. It is particularly noted for its strong investment treaty track record acting for sovereign states throughout Latin America, Central and Eastern Europe, Central Asia and the Asia Pacific region. The team also acts on the investor side. Other PIL areas of note are state responsibility, treaty law, international humanitarian law, jurisdictional immunity and diplomatic protection issues, and trade disputes. The key figures are Patricio Grané LabatDmitri EvseevDavid Reed and newly promoted partner Monty Taylor. Strong associate-level support is provided by Tim Smyth, Bart Wasiak, Alice Osman and Alexander Witt.


‘Arnold Porter lawyers are true international lawyers who have significant experience with public international law cases, in particular investment arbitration, which is proven by their track record.’

‘Dmitri Evseev is a sharp minded lawyer who dedicates his attention fully to the case he is representing his client, he knows all details of the case and can effectively defend the client before the arbitration tribunal.’

‘A&P has an outstanding team for Public International Law. The teams is composed by lawyers with knowledge and expertise in this field.’

‘The team of Arnold & Porter is excellent. It comprises of knowledgeable, hard-working, well-organised and efficient lawyers.’

‘I would recommend David Reed. He is a lawyer that everyone would like to have as a lead counsel because of his solid case strategy and legal argumentation.’

‘Monty Taylor is experienced and diligent.’

Key clients

Republic of Bulgaria

Kingdom of Thailand

Czech Republic

Republic of Peru

Republic of Costa Rica


Republic of Chile

Republic of Philippines

Republic of Korea

The Dominican Republic

Republic of Panama

EU Commission

Karkey Karadeniz Elektrik Uretim A.S.

Regulatory investigations and corporate crime (advice to corporates) Tier 2

Arnold & Porter has 'an unparalleled track record in securing outstanding results for corporate clients'. It acts for multinational corporates in relation to regulatory prosecutions and investigations, advising on matters including bribery and corruption and fraud. Compliance is another core focus for the firm, which advises on money laundering legislation and anti-tax evasion matters. The London team works closely with its counterparts in the US to provide a holistic global approach.The practice is headed by internationally respected and 'utterly superb lawyerKathleen Harris, who advises publicly listed multinational corporates and board level executives seeking criminal and regulatory advice in the UK. Sean Curran, who has 'the best client-care skills in the business', also heads the practice and is experienced in criminal and regulatory trials. Curran acts for clients in the finance, defence, and technology sectors.

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‘They achieve results through first-rate legal and practical knowledge and tactical ability’.

‘Kathleen Harris has a preternatural ability to identify where investigations will end, and positions her clients in the best position to secure an outstanding result’.

‘Sean Curran has the confidence and trust of prosecutors and practitioners’.

‘The team have dealt with some of the highest profile cases in recent years’.

‘They are held in very high regard by their clients’.

‘Kathleen Harris and Sean Curran are extremely intelligent, hard-working and able to handle clients skilfully’.

‘A team with real depth and wide ranging expertise’.

‘They have outstanding strength in assessing client risk exposure and in advising accordingly’.

Key clients

News UK

Tiffany & Co.

Sotheby’s Auction House

Eden Pharma

Fraud: white-collar crime (advice to individuals) Tier 3

Arnold & Porter is well-regarded in the white-collar sphere and is known for its expertise in  regulatory prosecutions and investigations, and bribery, corruption and fraud matters. It also handles compliance, money laundering and anti-tax evasion issues. Working closely with its US offices, the team is well placed to provide advice on global investigations. The 'technically giftedKathleen Harris has significant experience of economic crime matters and co-heads the team alongside the 'phenomenally bright' Sean Curran . Curran is noted for his experience dealing with international enforcement agencies.

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‘Their conscientious client care is matched by their collective capacity for hard work, relentless dedication and a real tactical skill’.

‘Kathleen Harris is fiendishly bright, astonishingly hard-working, and as tenacious as they come’.

‘Sean Curran is an engaging personality and a hard-working and skilled lawyer’.

‘Kathleen Harris has secured fantastic results for her clients, who are of the very highest profile, and often incredibly demanding’.

‘Sean Curran commands the absolutely confidence of his clients; he is an astute tactician with real depth of experience’.

‘They have a real depth of experience and expertise across the board that they utilise to great effect’.

‘Sean Curran is hugely charismatic and very clever’.

‘One of their real strengths is understanding and being able to navigate issues where civil and criminal law meet’.

Hedge funds Tier 3

Arnold & Porter advises a variety of funds in the UK and US, with an integrated team across the two jurisdictions. The client roster includes a range of alternative investment funds, with a recent focus on funds contemplating entry into the cannabis industry. The practice advises clients on management and regulatory issues (particularly around Brexit), tax considerations and compliance with AIMFD, EMIR and other regulatory regimes. Additionally, the team collaborates closely with the firm's white-collar investigations and litigation practices on contentious governance issues. The practice is led by Simon Firth, who advises a variety of investment sponsors and managers.

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Key clients

IPM Informed Portfolio Management

MacKay Shields LLC/MacKay Shields UK LLP

MENA Capital LLP

PrimeXtend Limited

RoboCap LLP/RoboCap Partners Funds

Haven Cove SICAV plc

IUR Capital Limited/IUR Securities LLC

MFW – Multi Family Wealth Limited

New Model Venture Capital Limited

York Capital Management LLC

Debt capital markets Tier 4

Arnold & Porter is best known for advising sovereign issuers on international financial transactions, particularly those involving challenging jurisdictions and complex legal issues. It has handled sovereign debt issuances for the Republic of Nigeria, the Republic of Turkey and the Republic of Kenya, among others. The practice is led by Jeremy Willcocks, who has more than 18 years of experience handling matters involving issuances of complex and innovative sovereign bonds. Senior partner Whitney Debevoise, who works predominantly in the Washington DC office, plays a key role in some of the deals handled by the London office.

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Key clients

Republic of Turkey

International arbitration Tier 4

Arnold & Porter's London team is 'highly skilled and knowledgeable in international arbitration' and has significant experience in acting for sovereign states throughout Latin America, Russia, Eastern Europe, Central Europe and Central Asia. Notable partners include commercial and investor-state arbitration experts Dmitri Evseev, David ReedPatricio Grané Labat and Jane Wessel; and commercial dispute resolution group head for Europe Hilton MervisMonty Taylor, who represents corporations, individuals and governments, was made partner, and William Godwin QC was recruited from 3 Hare Court as counsel.


‘Solid international arbitration offering with a great depth of experience.’

‘Monty Taylor is utterly brilliant. He is a careful thinker, a charismatic advocate and a genial colleague.’

‘David Reed is an excellent technical lawyer, with good commercial instincts. He was always able to think strategically about resolving the dispute in a way which prioritised achieving the client’s objectives for bringing the project on-stream, as distinct from simply prolonging the litigation. Also I would recommend Hilton Mervis, who was a good tactician and was a similarly strong technical lawyer.’

‘I would generally say that Arnold & Porter has a strong arbitration team with members who offer a wide range of qualifications in terms of sector, language and legal expertise. The arbitration team has the ability to flexibly accommodate their clients’ needs in international arbitration. The partners offer sound leadership and they maintain good client relationships.’

‘I would mention in particular Dmitri Evseev who has a sharp mind and thinking and is very good in working with experts.’

‘Patricio Grané is an outstanding counsel. He knows the case in detail and is goal oriented. His expertise in international law, international arbitration and WTO is an indisputable asset for the client.’

Key clients

Republic of Bulgaria

Kingdom of Thailand

Czech Republic

Republic of Peru

Republic of Costa Rica


Republic of Chile

Republic of Philippines

Republic of Korea

The Dominican Republic

Republic of Panama

EU Commission

Karkey Karadeniz Elektrik Uretim A.S.

IT and telecoms Tier 4

The telecoms-focused practice at Arnold & Porter specialises in regulatory and multijurisdictional advice. The firm’s expertise includes the European digital single market regulation, European data protection law, cybersecurity issues and the UK’s Communications Act. Rob Bratby left the firm in 2020 to found boutique Bratby Law.


‘Knowledgeable without a doubt and practical in providing advice that is specific to each business.’

‘A true commitment to finding solutions and supporting the business.’

Key clients

AT & T

Tata Communications

Orange Business Services


Intellectual property: patents (contentious and non-contentious) Tier 5

Arnold & Porter’s recent recruitment of Beatriz San Martin to the partnership from  Fieldfisher has significantly expanded the patent litigation capabilities on offer from London to the firm's global life sciences client base. San Martin fields particular expertise in SPC invalidity actions before the UK and European courts. Recently made-up partner Ewan Townsend handles commercial IP issues, including ongoing R&D and collaboration negotiations involving complex biotechnology and pharmaceutical products.

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Key clients


Santen Pharmaceuticals


Bristol-Myers Squibb (BMS)


Leading DNA synthetic company


M&A: lower mid-market deals, £50m-£500m Tier 5

Arnold & Porter advises on M&A and joint ventures both domestically and cross border, with the team advising buyers, sellers, venture capitalists, lenders, financial advisers, management teams and private equity and hedge funds. The team is particularly experienced in the life sciences sector and has seen significant growth in work in the cannabis sector. Jeremy Willcocks leads the practice, advising on share and asset sales, IPOs, public takeovers, shareholder disputes, and joint ventures.

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The commercial and diligent nature of the team make it an enormously valuable resource to anyone looking at executing a transaction. Their market experience is incredibly useful as a sounding board and their technical expertise is very high.  These characteristics, combined with an approachable, good-humoured and extremely hard-working ethos, make working with the team an enormously enjoyable and rewarding experience.

Jeremy Willcocks leads his team “from the front” and has surrounded himself with very complimentary and equally high performing team members.

Key clients


Telus International

GVS Filter Technology


Touchlight Genetics


Omega Healthcare Investors

Edison Global Limited


Cognizant Technology Solutions

Crypta Labs Limited

IronNet Cybersecurity

Onex Corporation

Visa Inc.

OneView Commerce plc

Commercial litigation: premium Tier 6

The commercial disputes team at Arnold & Porter is well-placed to handle cross-border disputes and has a particularly strong reputation in the life sciences sector. Hilton Mervis, who counts civil fraud, contractual disputes and international partnership issues among his areas of expertise, leads a team which includes counsel Charlotte Mallorie and antitrust litigator Jane WesselWilliam Godwin QC joined as counsel from 3 Hare Court , adding a breadth of commercial litigation expertise, including in corporate issues, construction contract disputes and shipping and insurance sector litigation.

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Key clients

Estera Trust (Jersey) Limited

Herinder Singh


Mitsui O.S.K. Lines, Ltd

Triton Partners



Bausch Health (previously Valeant)

Karkey Karadeniz Elektrik Uretim

Employers Tier 6

Arnold & Porter's labour and employment department has well-established links with leading clients in the life sciences/pharmaceutical sector. The team also has a strong reputation for international work, especially for global projects and on cross-border investigations. Team head Henry Clinton-Davis has an impressive track record advising clients in the retail sector.

Practice head(s):


‘They provide excellent service.’

‘Henry Clinton-Davis will always be my go-to for most European employment work. He is not only well versed in the law, but has a demeanour the is unflappable. I have never seen him become frustrated, even in the middle of some very difficult situations.’

‘Deep knowledge of their legal discipline. They always take the time to properly understand the. business needs and challenges and tailor their input according to commercial priorities.’

‘Henry Clinton-Davis is by far the best employment lawyer I have ever worked with. Professional, knowledgeable and works like a true business partner.’

‘Very capable results-focused team, especially in life sciences sector and where there are international elements.’

‘Henry Clinton-Davis has outstanding employment law knowledge. He is always able to provide pragmatic ideas and solutions as well as the legal position. He is always a pleasure to deal with, proactive and timely in all matters, courteous and respectful of your time.’


Key clients

Roche Diagnostics Limited

Roche Diabetes Care Limited

Carestream Health

TELUS International





Nordic Nanovector

The Hospital Group

EU and competition Tier 6

Arnold & Porter’s traditional firmwide strength in the pharmaceutical sector offers a platform for the London-based group to handle a significant volume of mandates in this space, particularly in relation to issues arising at the junction of IP, competition and regulatory issues. Practice head John Schmidt is noted for his credentials in UK and EU competition investigations. Multi-jurisdictional merger control also generates a steady stream of work for the team, for which it cooperates with its counterparts in Frankfurt, Brussels and the US.

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‘We can always rely on John Schmidt to help us identify and structure pragmatic solutions that enable the business to operate successfully within a complex legal environment.’

Key clients


Mitsui O.S.K. Lines

Sanofi-Aventis Groupe


Boston Scientific Corporation

Philip Morris International






Venture capital Tier 6

Led by corporate partner Jeremy WillcocksArnold & Porter is able to tap into the expertise of numerous IP practitioners and regularly handles later stage venture deals within the life sciences and TMT sectors. Inbound US investment mandates are a key area of focus for the team, as is its work for investors in the burgeoning cannabis market.

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Arnold & Porter Kaye Scholer LLP is a leading international law firm with 13 offices including London, Brussels, Denver, Houston, Los Angeles, New York, San Francisco, Silicon Valley and Washington, DC.

The firm: Arnold & Porter Kaye Scholer LLP formed on 1 January 2017, the result of two well-established firms – Arnold & Porter (1946) and Kaye Scholer (1917). The London office, established in 1997, is home to the firm’s European regulatory and corporate and finance practices, and includes specialists in life sciences, intellectual property, telecoms, product liability, commercial litigation and arbitration, competition, white-collar crime, and employment. The office’s clients include large, multinational companies; start-up businesses; banking institutions and financial services companies and individuals.

Types of work undertaken
Bankruptcy and restructuring: focuses on cross-border restructurings, assisting creditors and distressed investors on investment in, and restructuring of, debt and equity. Commercial dispute resolution: Deep experience in handling large-scale international commercial litigation including shareholder, joint venture, partnership disputes, banking litigation, complex civil fraud cases, competition High Court related cases, corporate reputation and regulatory investigations.

Competition: advises on both EU and UK competition law issues. It represents clients from a broad range of industries before the UK Office of Fair Trading and the Competition Commission in relation to competition concerns, including merger control and allegations of abuse of dominant position or and-competitive practices.

Corporate: advises on domestic and cross-border M&A, joint ventures, strategic alliances, public takeovers, shareholder disputes, venture capital and mid-market private equity transactions where the firm have considerable experience.

Employment: covers all areas of employment and business immigration. It also handles the employment aspects of mergers and outsourcing as well as TUPE.

Finance: advises leading investment banks, private equity funds and other financial institutions in relation to general banking, syndicated and leveraged finance and structured finance transactions such as structured credits and derivatives. Leading debt capital markets capability in relation to representing sovereign bond issuers including debut and diaspora bond offerings.

Intellectual property and technology: in depth experience in many aspects of IP, including licensing, rights acquisition, brand co existence, delimitation and brand sharing agreements. It handles disputes in all forms of IP and technology, including patents, trademarks, designs and copyright.

International arbitration: handles informal and institutional dispute settlement proceedings including serving as advocates, advisors, and arbitrators in disputes between sovereign governments and private investors, assisting in disputes arising out of concession agreements and other state contracts or under the terms of bilateral investment treaties and other international agreements.

Investment management: advises on the structuring, formation, promotion, regulation and operation of closed and open-ended investment funds. Regulatory advice includes coverage of AIFMD, MiFID, FCA authorisation, financial promotion, conduct of business rules, and customer documentation involving applicable UK and EU regulations and equivalent SEC provisions.

Life sciences: one of the largest pharmaceutical and medical devices regulatory practices in the EU, dealing with all aspects of pre and post-marketing authorisations and appeals, and on issues arising from emerging technologies such as gene, cell, tissue and pharmacogenomics.

Product liability: the large team of specialist lawyers, many dual-qualified in law and medicine, is experienced in conducting the defence of unitary and group product liability proceedings relating to medicines, medical devices, foods, pesticides, and other chemical products.

Telecommunications, internet and media: advises UK, European and North American telecommunications operators, service providers and ISPs on regulatory and commercial issues. It is consulted frequently by regulatory authorities and financial institutions on regulatory issues.

White-collar defence: advises corporates on how to handle investigations in relation to potential economic crime offences with an increasing focus on matters relating to FCPA, anti-bribery and money laundering compliance, together with economic crime defence, self-reporting and negotiations with law enforcement agencies, both in the UK and US.

Other offices: Chicago, Houston, Shanghai, West Palm Beach

Department Name Email Telephone
Chairman Richard M Alexander
Co-managing partners Anne P Davis
Co-managing partners Michael D Daneker
Head of London office Ian Dodds-Smith
Antitrust Jane Wessel
Competition John Schmidt
Bankruptcy David Von Saucken
Corporate and securities Anna Buscall
Corporate and securities David Gerber
Corporate and securities Andrew Harris
Corporate and securities Sean Scanlon
Corporate and securities Jeremy Willcocks
Commercial Dispute Resolution Hilton Mervis
Technology Disputes Michael Bywell
Employment Henry Clinton-Davis
Finance Stuart Axford
Finance Colin Tan
Intellectual property and technology Beatriz San Martin
Investment management Simon Firth
International arbitration Dmitri Evseev
International arbitration Patricio Grané Labat
International arbitration David Reed
Commercial litigation Hilton Mervis
EU life sciences Ian Dodds-Smith
Product liability Ian Dodds-Smith
White-collar crime Kathleen Harris
Telecommunications, internet and media Rob Bratby
Photo Name Position Profile
Mr Sean Scanlon  photo Mr Sean Scanlon Partner
 Jeremy Willcocks photo Jeremy Willcocks Partner
Number of UK partners : 18
Number of other UK fee-earners : 45