About us
Arthur Cox LLP is one of Ireland’s leading law firms. We are an “all-island” firm with offices in Dublin and Belfast. We also have offices in London, New York, and San Francisco. Our practice encompasses all aspects of corporate and business law.

With 600 legal staff and a total headcount of nearly 900, we provide a comprehensive service to an international client base ranging from multinational organisations, banks, and financial institutions and established global leaders to government agencies and new players in emerging industry sectors.
Our story has been defined by our progressive outlook. For over 100 years, we have led the way in the legal field in Ireland. For our clients, we work to deliver the best service and support. With an independent, entrepreneurial spirit of innovation leading the way.
Defining Moments
“Our business is ultimately a people business; you’ve got to be able to relate both to your colleagues and to your clients.” – Geoff Moore, Managing Partner
Every career is shaped by defining moments: difficult questions asked, challenges faced, mentors who have guided us, risks we have taken.
At Arthur Cox, we believe leadership is shaped by experience, resilience, and the ability to connect with others. In ‘Defining Moments,’ Geoff Moore, Ailish Finnerty, Rob Cain and Rachel Hussey share personal stories about the turning points that defined their paths, shaped their professional growth, and influenced their values.
From starting out in your career, to the value of mentors as well as the importance of resilience and backing yourself, these candid reflections offer insights into the challenges, decisions and successes that have inspired their approach to leadership—helping to foster a culture of collaboration, integrity, and innovation that defines our firm.
Our firm
Through our bright, insightful and intuitive people, who know that they are at the cutting edge of best practice in Irish law. Energised to achieve, every day.
Read more about usOur history
Our story has been defined by our progressive outlook. For over 100 years, we have led the way in the legal field in Ireland, and have constantly worked to strive towards our goals. That approach comes from our spirited founder Arthur Cox, and goes right through to the bright, open-minded people in the firm today.
Learn about our historyOur credentials
With 600 legal staff and a total headcount of nearly 900, we provide a comprehensive service to an international client base ranging from multinational organisations, banks and financial institutions and established global leaders to government agencies and new players in emerging industry sectors.
Credentials
There are times when people realise the value of an experienced adviser who is prepared to listen to their troubles, to warn, and to recommend. Very few lawyers in any time brought to their work a mind so richly cultivated as that of Arthur Cox.
The Irish Times
6 September 1958