Established in 1825 in Dublin, Ireland and with offices in Cork, London, New York, Palo Alto and San Francisco, Matheson services the legal needs of internationally focused companies and financial institutions doing business in and from Ireland. Matheson clients include over half of the world’s 50 largest banks, 7 of the world’s 10 largest asset managers, 7 of the top 10 global technology brands and we have advised the majority of the Fortune 100 companies.

Matheson’s expertise is spread across more than 30 practice groups, including Finance and Capital Markets, Corporate, International Business, Mergers and Acquisitions, Technology and Innovation, Digital Services, Intellectual Property, Insolvency and Corporate Restructuring, EU and Competition, Asset Management and Investment Funds, Employment, Pensions and Benefits, Commercial Real Estate, Litigation and Dispute Resolution, Healthcare, Insurance, Tax, Private Client, Energy and Infrastructure, FinTech and Life Sciences.

Matheson’s nearly 80-strong Tax Department, led by 18 partners, advises domestic and international clients across all areas of Irish and international taxation. The team works with many of the world’s leading multinational corporations, financial institutions, asset managers and investment funds on some of the most significant transactions and business operations in Ireland.

Matheson was ranked no. 1 in The Lawyer European 100 2026. Matheson was awarded Ireland Tax Disputes Firm at the International Tax Review Europe Awards 2026.