About John O’Beirn

John is a Chartered Accountant with more than 35 years' experience providing audit, advisory and consultancy services to businesses across a broad range of sectors. 

John advises SMEs, large private enterprises and multinational organisations, bringing extensive expertise in audit, risk management and business consultancy.  

John's specialist areas include SOX compliance, grant claim engagements and bespoke advisory assignments, helping clients navigate complex regulatory, operational and strategic challenges. He is committed to delivering practical, commercially focused solutions and building trusted relationships that support long-term business success.