Xeinadin continues €40m investment drive with acquisition of Killarney firm O’Rourke & Co

O'Rourke & Co which also has an office presence in Cork is the seventh firm to join Xeinadin’s Irish team in 2025

Sean O’Rourke, O’Rourke & Co, pictured with Sandra Clarke, Xeinadin, Ireland Managing Partner, at O'Rourke & Co's offices in Killarney. Xeinadi has announced it has acquired Kerry based O'Rourke & Co. Picture: Michael O'Sullivan / OSM

Professional services firm Xeinadin has continued its €40m growth strategy with the acquisition of Kerry-based cloud-accounting practice O’Rourke & Co.

O'Rourke & Co specialises in cloud and digital accounting to support small and medium-sized businesses. Founded in 2011 by Sean O'Rourke,  O'Rourke & Co has its head office in Killarney but the firm also has an office presence in Cork.

O'Rourke & Co is the seventh firm to join Xeinadin’s Irish team in 2025, with Warren & Partners, KBG Accountants, FCC Accountants, FMCA Advisory Ltd, Folan & Co, and O’Reilly & Co joining earlier this year.

“Welcoming O’Rourke & Co to Xeinadin is another vital step forward in expanding our services in Ireland and the Munster region," said Xeinadin Ireland managing partner Sandra Clarke. "Their digital expertise and strong reputation for building lasting client relationships were extremely attractive to us. Their ability to build modern financial systems that evolve with business needs, particularly at a time when AI and new technologies are becoming normalised, is a significant strength in supporting our clients nationally.” 

O'Rourke & Co's services include system design and migration to digital accounting platforms and monthly support to clients including management accounts, payroll, VAT, and year-end compliance. The company's client base includes professional services, engineering, online retail, software, and medical services sectors.

"Joining Xeinadin is a natural next step for our firm and our ambitious clients. What attracted us to Xeinadin was their ‘SME first’ approach and their investment in future cloud technology in Ireland and the UK, something that resonated with me in our discussions," said Mr O'Rourke. 

"For our team, it offers new development opportunities and the support of a nationwide network of like-minded professionals. We are excited for what this next chapter will bring with Xeinadin.”

In 2024, Xeinadin committed to investing over €40m into Ireland in 18 months. This investment phase is expected to be completed in the first quarter of 2026, with further new acquisitions being announced in January and February. Looking further ahead into 2026, Xeinadin is preparing a further round of strategic investment aimed at acquiring additional practices and further expanding its presence across Ireland.