Dario Dagostino is head of the Litigation Department at A&L Goodbody. He also co-leads the Disputes & Investigations Group and founded the Regulatory Investigations Group, which he currently heads. Dario has represented domestic and international financial institutions, senior management and boards in many of Ireland’s business critical investigations. He frequently acts for clients on all aspects of their interactions with regulators such as the Central Bank of Ireland on regulatory compliance, supervisory reviews, enforcement investigations and associated appeals. He also advises on internal investigations and self-reporting issues. In addition, Dario represents clients in commercial disputes with a focus on civil proceedings with a regulatory aspect and in advising on corporate criminal matters.
Areas of Expertise
Regulatory Investigations/Financial Regulation Advisory/Disputes/Investigations/Technology/Privacy & Data Security/White Collar Crime/FinTech/Financial Services Litigation/Brexit/Corporate Crises
Experience Advising:
- Various financial institutions in dealing with supervisory engagements and investigations including those commenced by the Central Bank of Ireland, the Irish Stock Exchange, the Corporate Enforcement Authority, the Data Protection Commissioner, the Garda National Economic Crime Bureau and the Competition and Consumer Protection Commission.
- Domestic and international clients in commercial disputes before the Irish courts including claims for damages arising from regulatory decisions in the financial services, technology and competition spheres.
- Regulated firms in responding to enforcement investigations, including under the Central Bank of Ireland’s ‘Administrative Sanctions Regime’, relating to a range of areas covering anti-money laundering and sanctions compliance, governance requirements, consumer protection compliance, related party lending, prudential and financial reporting requirements, licensing requirements, safeguarding compliance, market-abuse/insider dealing and regulatory systems and controls issues.
- Regulated firms on regulatory enquiries including Central Bank on-site inspections, 'Themed Inspections' and 'Skilled Person' Reports.
- Regulated firms, senior management and their board members in complying with, and responding to investigations under, the Irish Individual Accountability Framework including the Senior Executive Accountability Regime.
- Regulated firms and individuals within the scope of the Central Bank’s ‘Fitness and Probity’ regime on internal investigations, probity assessments and investigations by the regulator.
- Several Financial Institutions in the context of the Central Bank’s Tracker Mortgage Examination Framework and associated enforcement investigations and other related enquiries such as the Central Bank’s Business Interruption Supervisory Framework.
- Financial Institutions in a number of Central Bank ‘Inquiries’ adjudicating on disputed enforcement allegations against Senior Management of regulated firms.
- Regulated and unregulated firms on compliance with financial and trade sanctions including licensing applications and conducting detailed analysis of proposed transactions and associated engagements with Irish Competent Authorities.
- Financial institutions under the European enforcement investigations including by the European Central Bank and European Securities and Markets Authority.
- Companies and financial institutions in response to ‘dawn raids’ and other regulatory and public enquiries concerning suspected breaches of competition law, data protection requirements, fraud and other regulatory issues.
- Companies and regulated firms in relation to the conduct of a wide range of internal investigations.
- Various aspects of compliance procedures including those relating to regulatory compliance, anti-money laundering, anti-corruption, conduct of business rules and consumer protection legislation.
- Self-reporting obligations and managing clients’ relationships with regulatory authorities.
Market Recommendations
“Dario handles the most complex financial services investigations one can get” (Chambers Global 2025)
“He is an expert in his field with an international perspective” (Chambers Global 2025)
“Dario Dagostino is excellent at navigating the right approach” (Legal 500 2025)
“Dario is a very experienced practitioner and has an in-depth and current understanding of all regulatory issues in the market and the inner workings of the organisation” (IFLR1000 2024)
Professional activities
Dario regularly presents to clients on a range of compliance related issues. He has written various articles and participated in government consultations regarding the reform of regulatory enforcement powers, anti-corruption legislation and regulatory frameworks such as the Individual Accountability Framework.
Education
- Solicitor, Law Society of Ireland
- Solicitor, Law Society of England and Wales
- B.C.L. Oxford University
- B.A. (Jurisprudence) Oxford University

Dario Dagostino
Partner,
Disputes & Investigations
Dublin