
Dispute Resolution
Europe Guide 2026 : Ireland
Rankings

Ranked Individuals
Ranked Individuals
About
Provided by Matheson LLP
Matheson’s Disputes and Investigations Group is market leading, representing both domestic and international clients.
The disputes we handle are often cross border in nature and precedent setting, requiring a collaborative and innovative approach, particularly where they are high-stakes, time-sensitive and carry significant reputational risk for our clients.
We believe our market leading expertise and the strength and depth of our team has contributed to Matheson being recognised as the ‘go to’ firm in Ireland for complex cross-border disputes. We have experience achieving successful outcomes for clients from all sectors including many regulated sectors.
Every deal or transaction carries with it the risk of a dispute and reputational management. Successful businesses require lawyers that can pre-empt the issues that may surface, take steps to minimise them and then react quickly and effectively when a dispute arises. We routinely assist our clients with pre-emptive advice on potentially contentious aspects of major corporate and financial transactions.
We play a critical role in the strategy of the dispute from the outset and minimise the cost and time involved in instructing external counsel. The partners in our Group are also leaders in the development of Alternative Dispute Resolution (ADR) and a number of our partners are accredited mediators.
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Strengths
Provided by Chambers
The team offers a very responsive service, tailored to the needs of each engagement.
Dispute Resolution respondentEuropeThe department is very reactive and always ready to help and support.
Dispute Resolution respondentEuropeMatheson offers clients high-quality advice and excellent ongoing support.
Dispute Resolution respondentEuropeThe team provides good, proactive client engagement.
Dispute Resolution respondentEuropeThe Matheson team is always available and provides high-quality advice, even when there is a very tight turnaround.
Dispute Resolution respondentEurope
Notable Practitioners
Provided by Chambers
Band 2 
Band 2 
Nicola Dunleavy
Nicola Dunleavy is particularly active in public law appeals of regulatory decisions and construction disputes. She also has experience advising on follow-on damages. The experience Nicola Dunleavy brings is extremely useful.
Dispute Resolution respondentEuropeNicola is really good.
Dispute Resolution respondentEurope
Band 2 
Band 2 
Rebecca Ryan
Rebecca Ryan leads the healthcare practice of the law firm and is well versed in defending consultant doctors in medical negligence claims. Rebecca is a fantastic operator.
Dispute Resolution respondentEuropeRebecca is dedicated and passionate. She has a really good understanding and reputation.
Dispute Resolution respondentEuropeRebecca Ryan provides excellent advice and is extremely proactive.
Dispute Resolution respondentEuropeRebecca Ryan is very thorough and her response times are very good.
Dispute Resolution respondentEuropeShe is able to deal with sensitive issues in a solid way. She provides good updates, understands the next steps required and is proactive in identifying issues.
Dispute Resolution respondentEurope
Band 3 
Band 3 
Karen Reynolds
Karen Reynolds is particularly active representing financial institutions in regulatory investigations and proceedings. She also has experience handling warranty and indemnity disputes, as well as data protection files. Karen Reynolds is a critical thinker and highly effective communicator.
Dispute Resolution respondentEuropeKaren is very personable and responsive.
Dispute Resolution respondentEurope
Band 4 
Band 4 
Michael Byrne
Michael Byrne is a skilled litigator with experience acting for major international clients. He stands out for his handling of defamation and trade mark mandates. Michael Byrne is an excellent lawyer.
Dispute Resolution respondentEurope
Up and Coming 
Up and Coming 
Justine Sayers
Justine Sayers assists with a range of clinical negligence and product liability mandates within the healthcare sector, advising on clinical reviews and disciplinary investigations.
Justine is a really strong solicitor.
Dispute Resolution respondentEuropeJustine Sayers is really good.
Dispute Resolution respondentEurope
Ranked Individuals at Matheson LLP (5)
Members
Provided by Matheson LLP

Karen Reynolds
View profile of Karen Reynolds
Nicola Dunleavy
View profile of Nicola Dunleavy
Rebecca Ryan
View profile of Rebecca Ryan
Michael Byrne
View profile of Michael Byrne
Justine Sayers
View profile of Justine Sayers
Matheson LLP has rankings in the following guides
Band 1 Global 2026
Practice area: Dispute Resolution
Location: Ireland
View department profile for Global 2026
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