Following our merger with BDO UK in July 2026, we operate out of 19 locations across the UK and Ireland. Employing 8,500 people and with revenues of approximately €1.2 billion, we are one of Europe’s largest accountancy organisations focused on the ambitious and entrepreneurial mid-market.
With more than 100 years of experience and a strong entrepreneurial heritage, we are uniquely positioned to support businesses at every stage of their journey – from start-up to FTSE, from local markets to international growth.
We put our people and our clients at the centre of everything we do – delivering insight and quality, and in doing the right thing for business and society.
BDO LLP is part of the BDO International network, providing professional services in 169 countries, with 95,000 people working out of 870 offices worldwide. It has revenues of US$11 billion.
Authorisations

BDO Ireland LLP is registered as a statutory audit firm in Ireland and the UK by the Institute of Chartered Accountants in Ireland. Details about our statutory audit firm registration can be viewed at Auditors Search - CRO under reference number 67358.
Mapalbay Company Limited by Guarantee, a company incorporated in the Republic of Ireland is registered as a statutory audit firm in Ireland and the UK by the Institute of Chartered Accountants in Ireland. Details about the statutory audit firm registration can be viewed at Auditors Search - CRO under reference number 67357.
BDO Ireland LLP, a limited liability partnership registered in England and Wales under number OC458243, is a member of BDO International Limited, a UK company limited by guarantee, and forms part of the international BDO network of independent member firms. A list of members’ names is open to inspection at our registered office, 55 Baker Street, London W1U 7EU.
BDO is the brand name for the BDO network and for each of the BDO Member Firms.
All the companies listed below are limited by shares:
BES Management DAC
Registered in Ireland: No. 225295
Registered Office: Block 3, Miesian Plaza, 50-58 Baggot Street Lower, Dublin 2
Authorisation: BES Management DAC is regulated by the Central Bank of Ireland under Section 10 of the Investment Intermediaries Act,
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