Moore Ireland acquires Cork chartered accountancy practice TA Sheehan & Co
22 September 2026
We are pleased to announce that T.A. Sheehan & Co. has joined forces with Moore Ireland, further strengthening our presence in Cork and supporting our continued growth across Ireland.
Founded in 1988, T.A. Sheehan & Co. is a well-established Cork accountancy practice with a strong reputation for trusted, personal service. The firm supports businesses across audit, accountancy, tax, business advisory and company secretarial services.
We are delighted to welcome Tom Sheehan, John Collins, Dave Butler and the wider T.A. Sheehan & Co. team to Moore Ireland.
The announcement follows a significant period of growth for Moore Ireland, including our merger with Moore Kingston Smith in 2023 and our mergers with DHKN in Galway and HSOC Ireland in Dún Laoghaire in 2025. These developments have expanded our expertise and capacity to support clients from offices in Cork, Dublin, Galway and Dún Laoghaire.
Supported by Moore Kingston Smith and Waterland Private Equity, we continue to bring together established firms with complementary expertise and shared values. This approach broadens the services available to clients while maintaining the trusted, relationship-led support they value, backed by the international capabilities of the Moore Global network.
We look forward to working alongside our new colleagues and continuing to support businesses across Ireland, as well as international organisations investing in and expanding into the Irish market.
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