Xeinadin acquires Kilkenny advisory firm Carrigan O'Dwyer

Xeinadin continues to expand presence, with 32 offices across Ireland

David O'Connor, Xeinadin Ireland; Paul O'Connell, Xeinadin Ireland; Donal O'Dwyer, Carrigan O'Dwyer partner; Sandra Clarke Xeinadin Ireland managing partner; Conor Dillon, Xeinadin Ireland; Martin Carrigan, Carrigan O'Dwyer partner at Lyrath Estate Hotel in Kilkenny. Xeinadin has announced that Kilkenny firm Carrigan O'Dwyer Limited, will be joining its growing Irish team. Picture: Alison Miles / OSM PHOTO

Mon, 18 May, 2026 - 09:54

Martin Claffey

Kilkenny accountancy and advisory firm Carrigan O'Dwyer has been acquired by professional services firm Xeinadin as it continues to expand across Ireland.

Carrigan O’Dwyer is an advisory firm specialising in cyber security, pharmacy, and IT start-ups. it was founded in 2006 by Martin Carrigan while Donal O'Dwyer joined as a partner in 2013 as the firm evolved into Carrigan O’Dwyer. Carrigan O’Dwyer has a staff of over 45. "We felt the time was right to join a larger organisation like Xeinadin. Xeinadin offers the scale and capabilities of a large practice while at the same time prioritising local relationships and an SME first approach, which matches our values as a company," said Mr Carrigan.