Languages Spoken: English Russian Portuguese French Lithuanian Ukrainian

Walsh O’Brien Harnett is a leading professional services firm located in the centre of Dublin. We provide advisory, accounting, taxation and audit services to a wide variety of businesses, charities, not-for-profit organisations and individuals. Walsh O’Brien Harnett was formed in 2016 from the merger of two long-established firms, Sherry McNabola Murray and O’Brien Harnett. The merger established us as one of the Top 20 firms in Ireland.

Our corporate clients range from entrepreneurial growth businesses through established companies with turnover in the tens of millions to multinationals. Our charity and not-for-profit clients include religious congregations, educational bodies, community support organisations and government bodies.

Walsh O’Brien Harnett currently has five partners and c.45 professional staff, including qualified accountants, tax advisers and those sitting professional exams.

Our mission is to provide quality financial and consulting services through the professionalism and dedication of the staff and partners. This quality is underwritten by the extensive experience of the partners and is characterised by the high level of partner involvement with clients. We aim to add value wherever possible, to provide practical solutions, and to develop long-term relationships with all of our clients.

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Frank Walsh Ps

A Message from Managing Partner, Frank Walsh MA FCA

We focus on our clients’ needs and circumstances and then use our experience and expertise to define and deliver advice and practical solutions that work and add value. We are a partner led and client focused business. We work with our clients and appreciate that the quality of our client relationships is as important as the work we actually deliver. We strive to consistently live up to our values, delivering client experiences that are characterised by professionalism, integrity, openness and proactivity.

For all of your accounting, tax or advisory requirements in Ireland, please contact me directly.

Contact Us

Languages Spoken: English, Russian, Portuguese, French, Lithuanian and Ukrainian

Walsh O'Brien Harnett

104 Baggot Street Lower, Dublin D02 Y940

+353 1 668 8677

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Primary Contact
Frank Walsh Photo

Frank Walsh

Managing Partner

Firm Locations

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Primary Location

104 Baggot Street Lower, Dublin D02 Y940, Ireland

Frank Walsh
+353 1 668 8677

People at Walsh O'Brien Harnett

Roberta Flynn Photo

Roberta Flynn


Frank Walsh Photo

Frank Walsh

Managing Partner

Fergus Woodcock Photo

Fergus Woodcock

Tax Director

Richard O'Donovan Photo

Richard O'Donovan

Audit Senior

Roisin O'Leary Photo

Roisin O'Leary

Audit Senior

Aoife Johnston Photo

Aoife Johnston


Amy Lyons Photo

Amy Lyons


Nicola Tyndall Photo

Nicola Tyndall

Payroll Manager

Conor Collins Photo

Conor Collins

Assistant Manager

Sinead O'Connor Photo

Sinead O'Connor

Audit Associate

Bryan Farrell Photo

Bryan Farrell

Tax Director

Andrew Kevitt Photo

Andrew Kevitt


Joseph O Brien Photo

Joseph O Brien

Audit Partner

Ronan O'Brien Photo

Ronan O'Brien


Conal Sherry Photo

Conal Sherry


Thought Leadership by Walsh O'Brien Harnett