John is a member of the Institute of Certified Public Accountants in Ireland.
He has thirty years experience in practice in both the UK and Ireland.
He gained valuable experience in the UK with a central London practice before returning to Ireland in 1998.
John worked in practice in Cork and Kilkenny before setting up J O'Sullivan & Co in 2006.
He has an extensive range of experience and has advised clients in many sectors, including farming & agri business, construction, technology, manufacturing, retail and distribution. His areas of expertise include taxation issues to specific owner-managed businesses.