Arthur Cox

Arthur Cox LLP is a law firm founded in 1903. The firm operates as an all island practice with offices in Dublin, Belfast, London, New York, and San Francisco. It serves an international client base that includes multinational organizations, banks, financial institutions, government agencies, and emerging sector players. The firm has nearly 900 people on staff, including 600 legal staff.

The practice covers all aspects of corporate and business law. The firm uses teams from many specialist groups. These teams work on corporate transactions and provide legal support across many commercial areas. Clients range from established global leaders to new organizations in developing industries.

The firm advises on aviation as part of its broader legal services. It also works in asset management, commercial contracts, construction, and corporate mergers and acquisitions. Other practice areas include data protection, employment law, energy, infrastructure, and environmental planning. The firm handles matters in financial regulation, fintech, insurance, and intellectual property.

Arthur Cox provides services in debt capital markets, debt finance, and equity capital markets. It advises on governance, compliance, health and safety, healthcare, and life sciences. The firm also covers litigation, dispute resolution, investigations, tax, and technology. Its lawyers work on transport, waste management, broadcasting, and telecoms matters.

The firm has an ESG Hub and advises clients on environmental, social, and governance priorities. It also provides legal tech services and crisis management support. The firm runs an innovation lawyer programme where lawyers work with legal engineers and AI specialists to develop technology solutions for client service.

Arthur Cox has received recognition in major legal industry guides. The firm achieved ten Tier 1 rankings in IFLR1000 2026 and 18 Band 1 rankings in the Chambers Europe Guide 2025. It was also recognized as a top tier firm in the Legal 500 2025 across 25 practice areas.

The firm has been included in the Financial Times Innovative Lawyers Programme as one of the top ten most innovative law firms in Europe over the past 20 years. Arthur Cox continues to provide legal services from its offices in Ireland, the United Kingdom, and the United States.

Services

• Aviation
• Corporate and M&A
• Commercial Contracts
• Data Protection, Privacy and Cyber
• Debt Capital Markets
• Debt Finance
• Employment
• Energy and Infrastructure
• Financial Services
• Litigation, Dispute Resolution and Investigations