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As a Director within Grant Thornton’s Insolvency, Forensic & Restructuring team, I bring over 20 years of specialist forensic accounting expertise, spanning competition monitoring, investigations and dispute resolution. 

Since 2014, I have been a key member of our competition and monitoring services work, delivering over 40 monitoring trustee and equivalent mandates across state aid, merger control, and antitrust matters. This includes complex, multi-jurisdictional divestment remedies where I have also acted as Divestment Trustee. 

I work closely with key regulatory bodies including the UK Competition and Markets Authority (and its predecessor bodies), the European Commission and the Federal Trade Commission, providing assurance on compliance, reporting on many high-profile competition matters. 

Beyond competition monitoring, my forensic accounting experience includes supporting expert witness work on accounting conduct matters, as well as involvement in loss of profits claims, fraud and asset recovery investigations, and international arbitration. 

I have a particular interest in competition damages matters, including the quantification of harm in follow-on and standalone claims. This area complements my existing forensic and competition monitoring experience and reflects my commitment to broadening my expertise in emerging areas of forensic accounting. 

A career highlight includes a secondment to the UK’s Serious Fraud Office, where I supported its investigation into individuals and UK companies alleged to have paid kickbacks to the Government of Iraq under the United Nations Oil-for-Food Programme. My contribution to the case was commended by both the judge and a leading King's Counsel. 

I am passionate about developing talent and co-lead performance and career development within our Forensic team. I have designed and delivered core forensic accounting and investigation training programmes for colleagues in the UK and across Grant Thornton International member firms. 

Outside of work, I serve as Chair of Governors at a local school, applying my financial and governance expertise to support strategic oversight. I’m also an enthusiastic supporter of both national and local cricket and rugby teams.

Qualifications
  • FCCA (Fellow of the Association of Chartered Certified Accountants)
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Helen Trusler
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Helen Trusler
Director
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