• Sean O'Reilly



    Seán has extensive experience in high value mergers and acquisition work. He has broad-ranging experience as a corporate lawyer and advises generally on company, contract and commercial law matters and shareholder arrangements. On the transactional side, Seán has extensive experience in high value mergers and acquisitions work, including a number of high profile sales in the technology sector. Seán has advised upon the company law issues arising from and implemented many complex group re-organisations. He also frequently advises on investment projects and has handled investment work for companies, private investors and venture capital investors. Seán has advised both well-established players and disruptive innovators in the healthcare sector.             

    Seán has lectured in contract law and intellectual property law on the LLB course in Griffith College Cork. Seán has had his published work cited with approval by the Irish High Court.


    University College Cork (BCL Hons), (LLM), (Phd Candidate)


    Admitted as a solicitor in Ireland.


    • The Doctrine of State Liability for Breach of EU Law in the Irish Superior Courts (2020) 64 Irish Jurist 64-96
    • Irish Tax Review - Criminalising Corruption: Criminal Justice (Corruption Offences) Act 2018 This article first appeared in Irish Tax Review, Vol. 32 No. 3 (2019) © Irish Tax Institute
    • Köbler in the Common Law Courts: Cooper v Attorney General  (2014) 17 Irish Journal of European Law 87
    • E-Commerce and Contract Making (2012) 4(3) Irish Business Law Quarterly 19  
    • The Private Enforcement of European Community Law in the Irish Superior Courts (2009) 31 Dublin University Law Journal 324- cited with approval by Edwards J. in in the case of Environmental Protection Agency -v- Neiphin Trading Ltd & Ors [2011] IEHC 67


    Seán is recognised for exceptional standing in the legal community for his work in Commercial, Corporate and M&A in The Legal 500.

    • "Incredible subject matter expertise, dedication and constant positive attitude"-The Legal 500 (2022)

    • "an outstanding M&A lawyer" -The Legal 500 (2022)

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