Arthur Cox offers comprehensive advice on regulatory compliance, transactional, and litigation matters, representing major operators, institutional investors, and lenders in Ireland’s telecoms sector. The group is particularly active in high-value investments, acquisitions, and corporate transactions and regularly assists clients with developing telecom products. Telecoms regulation and competition experts Patrick Horan and Aaron Boyle, who focus on complex investment and infrastructure transactions, lead the practice jointly.

Mason Hayes & Curran LLP is a prominent player in the telecoms space, specialising in representing domestic and international clients, spanning both public and private sectors, on a broad spectrum of commercial and regulatory matters. The team handles a diverse range of contentious and non-contentious issues, including spectrum auctions, licenses, consumer protection, and product safety. Michael Madden heads the practice and has extensive experience handling high-stakes disputes before the High Court..

Matheson LLP is well-known for its broad capabilities across the telecom spectrum, handling investigations and transactional mandates. The team leverages its expert knowledge of local laws and regulations, assisting established and new telecom companies with competition and regulatory issues. Practice head Kate McKenna is well-known for advising regulated companies on regulations brought by ComReg, while co-head Carlo Salizzo is another key name to note.

McCann FitzGerald LLP is renowned for its comprehensive expertise in the telecoms sector, handling contentious, regulatory, and transactional matters for a diverse client base. The team is well-versed in both contentious and non-contentious issues, with a particular focus on competition aspects of transactions, including acquisitions and joint ventures. The contentious telecoms practice, led by Rosaleen Byrne, Amy Brick, and Catherine Derrig, frequently represents clients in Commercial Court proceedings. On the regulatory and transactional side, David Lydon and Garreth O’Brien provide administrative and corporate law advice to domestic and international clients. Laura Treacy brings significant expertise in telecoms regulation, advising on licensing, interconnection, spectrum allocation, and infrastructure access.

A go-to choice for prominent clients navigating complex legal and operational challenges, William Fry LLP frequently engages in significant telecoms and infrastructure projects, offering expertise in commercial transactions. The team also provides comprehensive support across a range of issues, including regulatory compliance, competition and consumer law, data protection, and network build and roll-out projects. Practice head Claire Waterson is well-known for her expertise in handling both contentious and non-contentious telecoms matters.

A&L Goodbody LLP offers a full-service telecoms practice, advising clients from a diverse set of industries on a wide range of contentious and non-contentious matters. The firm also represents clients in regulatory investigations and appeals against the decisions made by ComReg, providing comprehensive support across the sector’s legal and regulatory landscape. John Cahir leads the team and regularly represents clients before the Irish courts. John Whelan is also recommended.