How to Report Investment Fraud in the UK

fraud report UK FCA report Action Fraud
6+Fraud Reports
7Jurisdictions
12+Years Active
0Known Funded Deals
0 currentRegulatory Licences

The United Kingdom has several channels for reporting investment fraud. This guide covers reporting to the FCA, Action Fraud, Companies House, and the Insolvency Service, with specific reference to UK entities in the Corinth Group investigation network.

FCA — Financial Conduct Authority

The FCA regulates financial services firms in the UK. If an entity is collecting investment fees without FCA authorisation, it may be operating illegally. Check the FCA register at register.fca.org.uk to verify whether an entity is authorised. No Corinth Group entity — including Three Tuns Investment Holdings Ltd (company 14242045) — appears on the FCA register. Report unauthorised firms via fca.org.uk.

Action Fraud

Action Fraud is the UK's national reporting centre for fraud and cybercrime, operated by the City of London Police. Report online at actionfraud.police.uk or call 0300 123 2040. When reporting, include all company numbers: Three Tuns Investment Holdings Ltd (14242045), Corinth Management Services Ltd (12297863, now in compulsory liquidation), and any other entity you contracted with [Companies House, UK].

Companies House

Companies House maintains the UK company register. You can report concerns about: false or misleading filings; directors who should be disqualified; and companies that appear to be used for fraudulent purposes. In the Corinth Group network, Alec Theunissen appears as director of 25+ companies, with the majority dissolved or in liquidation. He holds two separate Companies House officer profiles, splitting his full directorship history across two records [Companies House, UK].

UK Insolvency Service

When a company enters insolvency, the Insolvency Service investigates the directors' conduct. Corinth Management Services Ltd (12297863) entered compulsory liquidation by court order in January 2026. The Official Receiver is now investigating. If you are a creditor, file a claim with the liquidator and provide evidence of any fraudulent trading or breach of director duties.

HMRC

If you have evidence that UK entities failed to file tax returns or engaged in tax evasion alongside investment fraud, report to HMRC's fraud hotline. Multiple Corinth Group UK entities show patterns of late or missing filings at Companies House [Companies House, UK].

Key Facts

  • No Corinth Group entity appears on the FCA register
  • Corinth Management Services Ltd (12297863) in compulsory liquidation January 2026
  • Alec Theunissen has two separate Companies House officer profiles
  • Action Fraud is the UK's national fraud reporting centre
  • Three Tuns Investment Holdings Ltd — company 14242045

Complaint Reports

FCA — Report a Scam Action Fraud (UK) FCA Register

People Involved

Martin Walter Model Jurate Kairiene Alec Theunissen

Related Entities

Three Tuns Investment Holdings Ltd Corinth Management Services Ltd (UK)

Related Investigations

Advance-Fee Fraud: The Mechanism Behind the Corinth Group Allegations Advance Fee Fraud Warning Signs Advance-Fee Fraud Warning Signs: 12 Red Flags That Should Stop You from Paying Advance Fee Scam: How It Works Companies House: Checking for Fraud Red Flags Corporate Funding Fraud: Advance Fee Schemes Corporate Funding Scam: Promises of Institutional Financing That Never Arrives Cost Contribution Fraud: Rebranding Advance Fees as Legitimate Business Expenses

Have You Been Affected?

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