Background History
Duignan Carthy O’Neill was formed in 1998 arising from a merger of Duignan & Co., and Carthy O’Neill & Co., two Dublin-based chartered accounting firms established for over 40 years. The practice has grown over the years to include a comprehensive range of accounting, tax and financial advisory services. This growth has been based on building long-term relationships with entrepreneurial, growth-oriented Irish and international businesses across a broad range of industries.

Recently, the growth of the practice has accelerated with the addition of clients from Europe and the United States who have established operations in Ireland. The firm has always emphasised the importance of its international association and is currently a leading member of AGN International– a worldwide association of 481 firms operating in 83 countries worldwide. This separate and independent association gives the Firm access to local knowledge in every major world market.

84 Northumberland Road, Ballsbridge, Dublin 4, Ireland.
Tel. + 353 1 668 2404 Fax. + 353 1 676 5212 Email. info@dcon.ie