Gregory Glynn

Greg Glynn WU 2017 New (web)
  • Gregory Glynn
  • +353 1 920 1170
  • Arthur Cox, Ten Earlsfort Terrace, Dublin 2, D02 T380, Ireland


Gregory is a partner in the Litigation and Dispute Resolution Group at Arthur Cox, with 58 lawyers, the largest group of its kind of any Irish corporate law firm. He also heads the firm’s Fraud and White Collar Crime Unit. Gregory was the head of the Arthur Cox Litigation and Dispute Resolution Group and was also a member of the Arthur Cox Management Committee.

Gregory has over 20 years of Arthur Cox experience in various litigious commercial matters from the High Court, Commercial High Court, Supreme Court, European Court of Justice, Tribunals and Investigations and Tax Appeals. He advises directors and officers of corporations on their duties and obligations relating to money laundering issues, legal mutual requests, search warrants, freezing orders and indictments and has considerable expertise in advising on investigations by foreign regulators such as the UK Serious Fraud Office, German Authorities, Italian Authorities, the US Department of Justice, the US Internal Revenue Service and the US Securities Exchange Commission.

A member of the Massachusetts Bar and the only Irish member of FraudNet, the international network of fraud litigation specialists founded by the International Chamber of Commerce, Gregory has advised on some of Ireland’s most high profile corporate crises and several of the most complex and notable international and cross-border fraud cases in recent years. His expertise is consistently recognised by Chambers Global, The Legal 500 and Who’s Who Legal.

A regular contributor to the national and international debate on fraud, he speaks at conferences in Ireland, Europe and the US.

Read Gregory’s comments on the “Bitcoin” challenges. 

Read Gregory’s views on whistleblowers.


  • Successfully represented an Irish leasing company in respect of its claims against an Italian company where the Irish entity sought orders for judgment and possession arising out of sums due under helicopter leases where the helicopters were based in Kosovo and Italy.
  • Highly contentious dispute between four shareholders of a successful Irish company with another shareholder. Injunctive relief was threatened and the parties then agreed to mediate the matter.
  • Successfully represented Russian and Irish entities in a complex employment/insolvency related dispute involving an injunction application and cross-border jurisdictional issues.
  • Successfully represented a US pharmaceutical company in a multi million euro dispute which arose from contamination in Holland allegedly as a result of waste water from its plant in Ireland which had been shipped by another Irish company.
  • Successfully represented (with US Counsel) an Irish national in a US Federal criminal trial for alleged US securities violations which resulted in the US Department of Justice filing a Motion to Dismiss the US indictment against him with prejudice.
  • Successfully trans-nationally mediated in London for an Irish company, on the largest ever settlement concerning civil proceedings in Ireland and England with the Criminal Assets Bureau of Ireland and the Assets Recovery Agency of England (which merged in April 2008 with the UK Serious Organised Crime Agency).
  • Successfully assisted an Irish Managing Director and instructed US counsel in a US Securities Exchange Commission investigation concerning Ireland on Revenue recognition issues which successfully resulted in the SEC case in the US being dismissed with prejudice.
  • Successfully represented (with UK solicitors) an Irish person who was charged with alleged VAT Carousel Fraud in the United Kingdom. After a six week trial in London a jury found our client not guilty.
  • Obtained the first Anton Piller Order and Attachment and Committal Motion together with one of the first Freezing Orders out of the Commercial Court, wherein we successfully represented a large U.S. company against an individual and his company for secret profits and overcharging the supply of products to the U.S. entity.
  • Successfully negotiated for a large Irish company a commercial dispute which was in the Commercial Court in which a German company claimed damages from the Irish entity for an alleged failure to fulfil obligations under a group of German contracts entered into in Germany.
  • Successfully represented a worldwide mining company in obtaining orders dismissing a water bottling company’s claim commenced in 2000, as the delay by the plaintiff had been inordinate and that no satisfactory excuse was provided by the plaintiff for want of prosecution.
  • Successfully commenced proceedings for a State company against its former IT Manager and third parties in respect of bribery, secret commissions, embezzlement and deliberate overcharging.
  • Representing a State Agency concerning misappropriation by the defendant of our client’s assets and converting the said assets for its own commerical benefit and to our client’s financial detriment.
  • Successfully represented a US/European PLC company against an employee who was secretly selling overpriced goods to our client through a third party company which he controlled. With the aid of an Anton Piller Order from the Irish Commercial Court in conjunction with asset freezing orders a successful recovery and a settlement of several million euros was achieved.
  • Successfully negotiated a Commercial Court settlement of a large dispute between a UK bank and an Irish software service provider concerning a dispute over use of computer source code.
  • Successfully settled a High Court action where we represented an Irish financial institution who was being sued for specific performance of an alleged contract the result of which was that the Plaintiff did not obtain any money nor were his legal costs paid.


  • JD, 1988, Suffolk University Law School, Boston, Massachusetts
  • LL.B, 1983, University College, Galway
  • BA, 1980, University College, Galway
  • Admitted to the Massachusetts Bar, 1988
  • Admitted as a solicitor in Ireland, 1984
  • In February 2018, Greg was nominated by in-house counsel to appear in the White Collar Crime Expert Guide 2018 as one of the leading lawyers in this field. The Guide will be published at the end of March 2018.
  ICC FraudNet logo
  • In 2017, Greg was elected to the Advisory Board of FraudNet, the International Chamber of Commerce's International Network of Fraud litigation specialists.
      TRACE Logo
  • Arthur Cox is the TRACE Partner Firm for Ireland.
  • Greg has been recognised as a leading lawyer in The International Who’s Who Legal 2017 for: Litigation, Investigations, Business Crime, and Asset Recovery.