Gareth Barton

Gareth is a forensic accounting specialist with extensive experience in expert witness, investigation and asset tracing engagements across Northern Ireland, the UK, Republic of Ireland, Gibraltar and the Channel Islands. He has worked across a wide range of sectors, including construction and real estate, hospitality, banking and financial services, pharmaceuticals and healthcare, media and entertainment, government and public sector, charities and retail and marketing.

He leads the day-to-day delivery of complex, high-profile assignments, working closely with legal teams, regulatory authorities and corporate stakeholders. His work involves rigorous financial analysis, loss quantification, detailed document review, interview facilitation, open-source intelligence (OSINT) gathering, litigation support and the preparation of expert reports for legal proceedings.

Gareth joined Grant Thornton in 2018 as a senior in the forensics and investigations team. Before specialising in forensic accounting, he gained experience in financial services through roles in accounts preparation, cloud-based bookkeeping, payroll and personal tax. This broad background gives him a strong understanding of financial operations, which he applies to forensic engagements with precision and insight. He has over seven years’ dedicated experience in forensic accounting and investigations.