Based in Dublin, Walsh O’Brien Harnett is one of Ireland’s top 20 professional advisory firms offering a wide range of accounting, audit, tax, advisory and corporate services. We are winners of the Practice of the Year and Large Practice of the Year at the Irish Accountancy Awards 2025.

Our clients range from entrepreneurial growth businesses, through established companies with turnover in the tens of millions, to multinationals. We also advise numerous charities and not-for-profit organisations. 

We are a proud member of PrimeGlobal, one of the five largest associations of independent accounting firms in the world with approximately 300 member firms in over 100 countries with a combined revenue of over $3.9 billion, bringing together over 3,000 partners and 28,000 employees.

Walsh O'Brien Harnett

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