- Founded
- 1920-01-01 in Dublin, Ireland
- Headquarters
- Ten Earlsfort Terrace, Dublin, Ireland
- mail@arthurcox.com
Arthur Cox LLP is one of Ireland’s leading corporate and business law firms, with an all‑island presence and offices in Dublin, Belfast, London, New York, and San Francisco. Founded in 1920 by solicitor Arthur Cox at 5 St Stephen’s Green, the firm has grown to employ nearly 900 people, including over 600 legal professionals. It serves an international client base ranging from multinational corporations, banks, and financial institutions to government agencies and emerging‑sector players. For more than a century, Arthur Cox has been recognised for its progressive outlook and deep involvement in shaping Irish commercial law, including drafting the foundational Companies Act of 1963. The firm’s practice covers all aspects of corporate and business law, with particular strength in banking and finance, dispute resolution, employment, intellectual property, data protection, and technology. In recent years, Arthur Cox has made significant investments in innovation, becoming the first Irish law firm to establish a dedicated Innovation Lawyer Group and forging a strategic partnership with Legora to scale AI‑enabled legal services. The firm’s commitment to technology and client‑centric solutions has been consistently recognised at industry awards, including multiple IFLR Europe Awards in 2026.
Detailed Review
History and Founding
Arthur Cox LLP was founded in 1920 by solicitor Arthur Cox at 5 St Stephen’s Green in Dublin. Over the past century, the firm has played a pivotal role in shaping Irish commercial law, most notably drafting the Companies Act of 1963. In 2017, the firm moved its headquarters to Ten Earlsfort Terrace, Dublin, where it continues to operate as a full‑service corporate law firm with a strong international footprint.
Business Model and Practice Areas
The firm operates as a full‑service corporate law firm, generating revenue through legal advisory services across multiple practice areas. Key practice groups include Corporate & M&A, Banking & Finance, Dispute Resolution & Litigation, Intellectual Property & Technology, Data Protection & Privacy, Employment & Benefits, Real Estate, Restructuring & Insolvency, and Tax. Arthur Cox is particularly noted for its expertise in complex cross‑border transactions and regulatory advice, frequently advising on landmark deals in equity and debt capital markets, M&A, and restructuring. In 2026, the firm was involved in 20 Finance Dublin Deals of the Year and was named IFLR Europe’s National Law Firm of the Year – Ireland.
Innovation and Technology
Arthur Cox has distinguished itself through a robust innovation agenda. It established Ireland’s first dedicated Innovation Lawyer Group, a team of lawyers, legal engineers, and technologists focused on designing AI‑enabled client solutions. In 2026, the firm selected Legora as a strategic partner to scale its AI‑enabled legal services firm‑wide, with formal governance structures to ensure responsible adoption. The appointment of Jennifer Ward as Chief Technology Officer in March 2026 further underscored the firm’s technology‑first approach; she leads the Innovation Lawyer Group and is responsible for AI strategy and digital transformation.
Market Position and Recognition
Arthur Cox is widely regarded as a market leader in Irish law. Its client base includes multinational corporations, banks, financial institutions, and government agencies. The firm’s leadership team includes Managing Partner Geoff Moore and Chair Ailish Finnerty. Recent accolades include “Lawyer of the Year – Ireland” (Kevin Lynch) at the IFLR Europe Awards 2026. The firm’s culture emphasises collaboration, integrity, and resilience, as highlighted in its “Defining Moments” leadership series.
Products and Platforms
- Innovation Lawyer Group: A dedicated team developing AI‑enabled client solutions. - Technology & Innovation Group: Ireland’s largest legal team specialising in data protection, IT, and intellectual property law. - Legora‑Powered AI Platform: A strategic partnership to scale AI‑enabled legal services firm‑wide. - CPD On‑Demand Portal: An online platform for continuing professional development. - Knowledge Resource Library: A free online repository of articles, video insights, and legal updates.
Key Products
Innovation Lawyer Group
A dedicated team of lawyers, legal engineers, and technologists developing AI‑enabled client solutions.
Technology & Innovation Group
Ireland's largest legal team specialising in data protection, IT, and intellectual property law.
Legora-Powered AI Platform
A strategic partnership to scale AI‑enabled legal services firm‑wide, complementing proprietary in‑house tools.
CPD On-Demand Portal
An online platform providing webinars and podcasts for fulfilment of Law Society of Ireland CPD requirements.
Knowledge Resource Library
Free online repository of articles, video insights, and legal updates covering corporate, regulatory, and industry topics.
Offices & Headcount
900 employees (approx.)
Key Persons
- Geoff Moore
Managing Partner
Ailish FinnertyChair
- Jennifer Ward
Chief Technology Officer
