Professional services group Xeinadin has acquired Hayden Brown, a Dublin-based audit, accountancy and tax practice founded in 1897, bringing the firm's Grafton Street office into its network and strengthening its position in Dublin's city centre, as reported by the International Accounting Bulletin. Financial terms of the transaction were not disclosed.

Hayden Brown provides advice to businesses, individuals, charities and professional organisations across sectors including retail, renewable energy, professional services and entertainment. The acquisition forms part of a further series of strategic investments by Xeinadin in 2026, following seven completions the previous year and the addition of Fylde Coast-based chartered accountancy practice Crossley & Davis to its network in June.

Stephen Brown, partner at Hayden Brown, said Xeinadin stood out because its values closely aligned with the firm's own and its model allows practices to retain their local presence and client relationships, adding: "Through joining Xeinadin, our clients will benefit from access to a wider range of specialist expertise and international support, while our team gains the backing, resources and career opportunities that come with being part of a larger organisation. We believe this positions the firm strongly for the future and we look forward to being part of the Xeinadin team."

Sandra Clarke, managing partner of Xeinadin Ireland, said Hayden Brown joining the group represents an important addition, expanding Xeinadin's city centre presence in Dublin, and added: "The firm is well respected within the local business community, with a strong track record of client service and long-standing relationships across a range of sectors. The team's experience will strengthen our audit and tax offering, expand the support available to our clients and give their existing client base more services to grow at scale. The addition of Hayden Brown is a positive step for us, not just in the capital but nationally, and we are delighted to have them on board."

The acquisition of a firm with more than 125 years of continuous operation reflects Xeinadin's strategy of targeting established practices with deep local roots and long-standing client relationships. For Irish accountancy firms, the continued appetite of larger professional services groups for Dublin-based acquisitions underlines the competitive pressure on independent practices to evaluate their long-term structural options as consolidation across the sector accelerates.