
Matheson LLP has a stable and large team of dispute resolution specialists, remaining noted for its strength in financial services cases, along with regulatory enforcement and investigations for financial services businesses and large corporates. It has achieved further prominence in representing aircraft lessors in four of the six proceedings in Ireland relating to irrecoverable aircraft in Russia; it is the only firm in Ireland to act for more than one client in this headline case. The firm continues to make an impression in technology and data privacy disputes, and is at the forefront of media, motor industry and insurance coverage cases. Nicola Dunleavy is a recognised leading figure in the market along with Julie Murphy O’Connor and regulatory investigations specialist Karen Reynolds, who also earn accolades. April McClements is noted for insurance coverage cases and Michael Byrne for TMT disputes.
Testimonials
Collated independently by Legal 500 research team.
‘Matheson deliver high quality work and are extremely responsive. The analysis they perform is robust, with great attention to detail.’
‘The team has core strength via its key people. Within the field of DR, this is particularly useful. Julie Murphy O'Connor is also excellent.’
‘Emma Trainor is an excellent associate. Her attention to detail, effort and ability to get through the documentation forensically really stands out.
- 'Julie Murphy O'Connor knows her cases inside out. She invests her time in the issues.’
‘From the outset there was a strong engagement and definitive line of advice. A full engagement on how to best approach and de-escalate matters. The nature of the work carried out was both critical and urgent to our business. The team worked with us though extremely tight deadlines and were forthcoming with excellent advice across a broad spectrum of expertise.’
‘Matheson’s disputes resolution team understand that disputes can be costly and disruptive, so they strive to resolve them efficiently and effectively, whether through negotiation, mediation, arbitration, or litigation. Their team has a proven track record of success in handling a wide range of complex disputes, including commercial litigation, construction disputes, intellectual property disputes, and regulatory investigations. ’
‘Ruadhán Kenny has been an absolute asset to our firm during recent disputes. His ability to navigate complex legal challenges with both tenacity and grace is truly remarkable. Ruadhan possess a rare combination of sharp intellect, persuasive advocacy, and a deep understanding of the commercial realities that underpin our business.'
‘Aishlinn Gannon is a stand out star within the team - she provides timely, accurate and knowledgeable advice in a concise manner.'
Key clients
- Nordic Aviation Capital; BOC Aviation Ireland; Avolon Aerospace; Goshawk Aviation
- Iveco Group
- Occupli
- Mediahuis Ireland Group (formerly Independent News and Media)
- Opel Automobile; Vauxhall Motors; Opel Ireland
- Volkswagen Group Ireland and Volkswagen Financial Services Ireland
- Philip Morris
- Netflix Worldwide Entertainment
- Utmost Paneurope
Work highlights
- Acted for Avolon Aircraft Leasing, Nordic Aviation Capital, BOC Aviation (Ireland) and Goshawk Aviation in four of six proceedings in Ireland in relation to irrecoverable aircraft in Russia.
- Defended Iveco Group, CNH Industrial and Stellantis in a significant number of High Court Irish claims following on the European Commission’s decision to fine truck producers €2.93bn for participating in a cartel.
- Acted for Occupli to successfully obtain interim and injunctive High Court relief, preventing the onward processing of stolen commercial data by competitors.
Lawyers

Practice head
The lawyer(s) leading their teams.
Julie Murphy O’Connor, Nicola Dunleavy