London
Mark leads Orrick’s global international arbitration practice group, and acts as advocate and counsel whether in international arbitrations (both commercial and investor-state) or in litigation in the English and DIFC courts. He has particularly deep experience in energy disputes, but also regularly acts in construction, technology, insurance, shareholder and white-collar/civil fraud matters (including advising on sanctions and export controls).
Mark has acted in arbitrations under all the major arbitration rules in disputes seated around the globe involving a wide range of governing laws and sits as arbitrator (including both as chairman and sole arbitrator). He previously practiced in Dubai as a Registered Foreign Lawyer and maintains a practice as advocate (and solicitor) in both the English and DIFC Courts (along with supervising cross-border litigation in multiple other jurisdictions). He is recognised in the leading directories for arbitration, litigation and natural resources disputes (including Chambers & Partners, Legal 500, GAR and Who’s Who). In addition, he has been recognised as a foreign expert in disputes in both the UAE and India by Chambers.
He has a particular interest in energy sector disputes, including those in the upstream and LNG areas he knows “oil and gas inside out” and is “as knowledgeable as anyone about international arbitration in the energy sector, specifically oil, gas and renewables” (Chambers & Partners UK ) and is recognised in Who's Who Legal for Energy, Chambers UK for Energy & Natural Resource Disputes and Legal 500 for Oil & Gas), but has dealt with matters across the industry, running the gamut from seismic acquisition agreements through to IP disputes involving refined products, carbon trading agreements and the construction and licencing of renewable projects. He recently led the AIEN Model Form Revision sub-committee focusing on the dispute resolution aspects of the model form JOA.
As illustrated below, beyond energy, Mark has acted in the infrastructure/construction, technology, insurance, fintech, pharmaceutical, telecoms, insurance and finance sectors (amongst others) and also advises extensively (both in the advisory context and in leading investigations/claims) in relation to white-collar/fraud matters, including money laundering, bribery, sanctions and export control issues.
Originally called to the English Bar and now practicing as a solicitor-advocate, Mark frequently publishes and speaks on arbitration and energy matters, including on questions of sovereign immunity, res judicata, arbitration procedure, the award of interest and other questions on damages. Mark serves as a member of the ICC's Commission on Arbitration & ADR, as well as on the ICC UK's Arbitration & ADR Committee. He also leads Orrick's London Office.
London
Mark assists office holders across a broad range of asset recovery actions, including investigations into antecedent transactions and other claims against directors and third parties, as well as advising directors defending such claims. Mark has deep experience in enforcement work on behalf of banks and lenders including Law of Property Act receiverships.
Mark's non-contentious work includes significant experience on transactional matters such as assisting on both the buy and sell side of 'pre-pack' administration sales and other insolvency sales, advising on restructuring options for companies in distress including voluntary arrangements, schemes, and consensual restructuring proposals as well as advisory work assisting companies and their directors on the duties they have when facing financial difficulties.
Geneva; London
Ali has acted as counsel in arbitration proceedings under the ICC, UNCITRAL, LCIA, Swiss, ICSID and DIAC rules in arbitrations seated in London, Paris, The Hague, Dubai, Madrid, Geneva, Zurich and Muscat, and governed by English, UAE, German, New York, Omani, Swiss, Saudi and Libyan laws.
Ali serves as a member of the ICC's Commission on Arbitration & ADR and acts as arbitrator. Ali has also acted as tribunal secretary in arbitral proceedings under the ICC rules and Permanent Court of Arbitration administered arbitrations under the UNCITRAL rules.
Prior to joining Orrick, Ali was previously legal counsel at the Permanent Court of Arbitration in The Hague. Ali also worked at an investment treaty arbitration specialist law firm in Paris and at the Dubai office of a leading international law firm.
London
Adele has advised clients on a wide range of cybersecurity and data privacy matters. Adele has a particular interest in online safety requirements for companies and has advised clients in relation to the Age Appropriate Design Code, Video Sharing Platforms requirements and the Online Safety Bill.
Before joining Orrick, Adele worked for two years on a global investigation into allegations of fraud, bribery and corruption, resulting in settlements with the UK Serious Fraud Office, French Parquet National Financier, U.S. Department of Justice and U.S. Department of State.
Prior to her work in private practice, Adele practiced at the independent Bar for five years. She has experience in prosecuting and defending in a wide range of criminal law cases and has developed a practice focusing on fraud, white collar crime and regulatory law. Adele has conducted secondments with the Serious Fraud Office and Crown Prosecution Service on high profile banking fraud cases, as well as internships with the International Criminal Court and the New York State Division of Human Rights.
Adele has obtained the Certified Information Privacy Professional - Europe (CIPP/E) designation from the International Association of Privacy Professionals.
London
Darren is a dual-qualified American lawyer and solicitor-advocate of England and Wales. He has an established record of working closely with clients across the finance, commodities, energy, life sciences and technology industries on all stages of disputes.
He represents clients in international arbitral proceedings under the major arbitral institutions' rules, as well as in American federal and state courts. He also holds Higher Rights of Audience with the Senior Courts of England & Wales. Darren maintains an active pro bono practice with a focus on criminal, habeas, and constitutional cases on appeal.
Darren also has direct in-house experience, having undertaken secondment to the fast-paced litigation department of one of the world's largest investment banks. He worked closely with the in-house team to assess litigation risk, advise stakeholders, and manage ongoing global litigations. He now frequently works with clients to develop their dispute resolution terms, processes, and trainings for other in-house functions.
Prior to joining Orrick, Darren earned his Juris Doctorate from Columbia Law School where he led the Columbia Business Law Review as its Editor-in-Chief and extensively studied federal constitutional, administrative, and criminal law. While there, he was a judicial intern in multiple levels of the U.S. federal judiciary, including the Second Circuit Court of Appeals, the Southern District of New York, and the District of New Jersey.
London
In addition to her core experience in ICC and LCIA arbitrations representing clients in the oil and gas, technology and airline industries, Harriet also has experience acting in sports-related arbitrations and representing clients in English High Court and Court of Appeal litigation and enforcement proceedings.
Paris; London
Sara represents clients across the United States, Europe and Asia in the energy and infrastructure, real estate, licensing and distribution, defense, and aerospace industries. She has experience handling disputes governed by French, Swiss, Iranian, and US (Maryland, New York, Washington, Illinois) law in most of the major arbitral forums, including the ICC, HKIAC, ICSID, and the Swiss Arbitration Centre.
With a strong background in Public International Law, Sara brings a nuanced understanding of the international legal frameworks that impact cross-border disputes to her cases. She also has a keen interest in defense technology and aviation, combining industry-specific knowledge with a solutions-oriented mindset to tackle the unique legal challenges these fields present.
Before joining Orrick, Sara gained valuable experience working in the Emerging Companies department of another major international law firm in New York City. She also represented the City of New York in family court, prosecuting child abuse and neglect cases for two years. In addition to her legal practice, Sara serves as a coach for the International Criminal Court moot court and is a Steering Committee member of the young practitioners’ group of the International Institute for Conflict Prevention & Resolution (CPR).
Sara is recognised for International Arbitration by Legal 500 France.
London
Alexander has particular experience in investment claims arising out of regulatory changes to renewable energy incentive regimes and the enactment of environmental protection laws. He has represented investors, Latin American and Eastern European States in a variety of claims under domestic and international law, including high-profile and politically sensitive investment treaty cases (often involving issues of corruption).
In addition to his international arbitration experience, Alexander frequently advises clients on financial sanctions and export control issues across a range of sectors including oil & gas, infrastructure, and defence.
He is fluent in Spanish and has a good command of German. Alexander also speaks and writes on international arbitration related subjects.
London
Prav is experienced in cross-border and international insolvency, guiding clients through complex bankruptcy challenges. He understands the unique needs of banks in enforcement work, particularly in Law of Property Act (LPA) receiverships. Beyond corporate matters, he specialises in personal insolvency, with a strong focus on asset recovery and resolving disputes relating to trusts and beneficial interests.
London
Kristy has experience working with companies as well as investors and venture capital funds throughout a company's life cycle, including early-stage financings, institutional funding rounds and exits.
In addition to equity financings, Kristy advises clients on other corporate transactions including bridge financings, secondary transactions and cross-border flip transactions.
London
Dominique provides strategic advice to insolvency practitioners, banks, companies and their directors, individuals and other key stakeholders on formal insolvency procedures including administration, liquidation and bankruptcy. Dominique works closely with companies facing potential financial difficulty to identify and execute restructuring strategies that align with their unique needs and challenges.
London
April’s experience includes advising on acquisitions and disposals of solar farms and wind projects as well as on joint venture arrangements and other commercial contracts across a range of renewable and conventional energy companies.