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Feargal Brennan

Feargal Brennan

Managing Partner fbrennan@byrnewallace.com +353 1 691 5276
  • Baker Tilly Ireland

    ByrneWallace LLP advises the partners in accountancy and business advisory firm Baker Tilly Ireland....

  • Marco Beverage Systems

    ByrneWallace LLP advises the sellers of Marco Beverage Systems....

  • Abbey Group

    ByrneWallace LLP advise on Yebba Investments Limited....

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Feargal Brennan is Managing Partner of ByrneWallace LLP and was appointed in June 2018. 

A senior corporate partner in the firm, he has led our Corporate division since 2011.  

Feargal has over 25 years’ experience advising leading Irish and international businesses across a wide range of corporate matters, and has particular expertise in advising on mergers and acquisitions, private equity and venture capital transactions. 


  • Diploma in European Law, 1996
  • Bachelor of Civil Law, (BCL) (International) University College Dublin & De Paul Law School, Chicago Illinois, USA, 1993
  • Admitted as a Solicitor, Law Society of Ireland, 1996 


  • Member of the Dublin Solicitors Bar Association
  • Firm Partner representative of ALFA International Legal Network 
  • Former member of the Business Law Committee of the Law Society
  • Former member of the Tax and Law Committee of the European Venture Capital Association
  • Former member of the Irish Venture Capital Association's committee on the preparation of standard form investment agreements
  • A non-executive director of The Mater Foundation (2018-2021)
  • Director of Circol ELT
  • Member of Ibec National Council (2022 to date)


Managing partner Feargal Brennan has notable experience in corporate advisory and M&A mandates. Sources highlight his client care skills, while another interviewee appreciates his "great depth of experience." - Chambers Global, 2022 and Chambers Europe, 2022

Managing partner Feargal Brennan is a prominent figure in the Irish market. He has notable experience in corporate advisory and M&A mandates. - Chambers Global, 2021 and Chambers Europe, 2021

Feargal Brennan is ranked a Preeminent Practitioner by Chambers Europe, 2021 and Chambers Europe, 2020

Managing partner Feargal Brennan commands expertise in a broad range of corporate and M&A topics, including acquisitions for private equity funds. "You feel like you're his only client, and he goes the extra mile in terms of taking the time to find solutions," enthuses one interviewee, adding that Brennan is "very strong technically." - Chambers Europe, 2020

Recommended as a leading private equity lawyer Eminent Practitioner in PLC Publication

Recommended as a leading lawyer in Chambers Global Directory of the World's leading lawyers for Business

Sources say that Feargal Brennan is "highly commercial." - Chambers Europe, 2019

Feargal Brennan offers "very creative and pragmatic" solutions. - Chambers Europe, 2018

According to clients, Feargal Brennan is "amenable, easy to get on with, pragmatic and commercial." - Chambers Europe, 2017

Feargal Brennan "gets to the heart of the matter without fuss". - Legal 500, 2016

Feargal Brennan is "among Dublin’s outstanding lawyers." - Legal 500, 2015