BDO Ireland and BDO UK are moving towards a merger that will create a major accountancy firm in Europe. The combined organisation will unite BDO’s Dublin and Limerick offices with the UK firm’s 18 locations, forming a business with 8,500 employees, 542 partners, and revenues approaching £1.1bn.

The proposed merger will expand BDO’s service offering across audit, tax, deals and consulting, and risk & outsourcing, strengthening capabilities in key growth sectors. The firms have emphasised that the combination builds on a shared culture, long-standing collaboration, and commitment to quality, integrity, and people.

Brian McEnery, managing partner at BDO Ireland, noted that both firms have worked closely for over 40 years and view this as a logical step to enhance services and operational efficiency. The merger remains subject to partner approval, regulatory clearance, and completion processes.

BDO UK stated that the integration will generate stronger returns on investment, broaden growth opportunities for clients, and enhance the firm’s technological and talent resources. Michael Shaw, managing partner of BDO UK, described the merger as a landmark move that positions the firm to better support entrepreneurial and mid-market clients navigating increasingly cross-border business challenges.

The enlarged firm will continue as part of the $15bn BDO International network, operating in 166 countries with 119,000 employees across 1,800 offices worldwide.

The combined BDO entity aims to strengthen its presence across Ireland and the UK while remaining deeply connected to international markets through the BDO network, enhancing services across audit, advisory, tax, and consulting.

Explore the full merger details and implications for BDO’s European operations in the complete report.