BDO Ireland and BDO UK exchange contracts on merger following successful partner vote

BDO Ireland and BDO UK have exchanged contracts following a successful partner vote for the proposed merger of the two organisations. 

Completion is expected in Spring 2026, subject to regulatory approval.

The enlarged organisation will bring together BDO’s Irish offices in Dublin and Limerick with the UK firm’s existing 17 offices. It will create a business with revenues of circa €1.26bn, circa. 550 partners and 8,500 employees. 

The ‘in-network’ merger deal is described as a major milestone for both organisations, cementing BDO’s position as one of the largest accountancy firms in Europe, focused on the entrepreneurial, growing and ambitious mid-market.

Partners in both the UK and Ireland have been clear in their support. They are excited about the next phase of our growth story and are pleased to have reached this important stage in the deal. This is a merger built on a foundation of shared culture, with mutual respect and commitment to our people, to quality and the consistency of service which our client heartland of entrepreneurial, growing and ambitious businesses requires. We look forward to working, thriving and winning together.

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We have worked side-by-side for decades on cross-border engagements, client collaborations and talent exchanges. We know each other well, and this shared history gives us confidence that we can build something even stronger together.

The merger will broaden BDO’s offering across its four core service lines (Audit, Tax, Deals and Consulting, Risk & Outsourcing) and in a range of growth sectors across the Irish and UK economies. 

It also serves to meet the ever-evolving needs of the market, providing improved cross-border ties and consistency of service to clients and increased capacity to invest in people, technology and innovation.

The enlarged organisation will remain part of the US$11bn BDO international network, which spans 169 countries and territories and has more than 95,000 people working out of 870 offices worldwide.

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