The ‘go-to’ team at A&L Goodbody LLP demonstrates expertise across all aspects of data privacy and security matters, from providing pre-incident and policy formation advice, to advising on legislative and regulatory compliance matters. The group has a high-profile client roster of leading internet platforms. The group is led by John Cahir, an expert across the contentious and non-contentious aspects of privacy law. John Whelan has strong knowledge of commercial, tech, contract and IP matters, often acting for tech and pharma companies, while the ‘incredibly knowledgeable’ Chris Bollard is a key client for tech companies and is well-equipped to advise on all aspects of compliance with data protection law. Andrew Sheridan is also a key name to note.

Arthur Cox showcases expertise across a broad range of data protection issues, covering legislative compliance work, enforcement actions, data transfers, cybersecurity issues, data protection matters and regulatory investigations. Practice head Colin Rooney provides ‘well-reasoned, strategic, and commercial’ advice to a wide range of industries, particularly significant tech clients, covering complex data privacy and data security mandates. Olivia Mullooly is a seasoned IP expert, frequently handling GDPR compliance reviews, data breaches and regulatory investigations. Rob Corbet is a key name for technological innovation mandates, notably the protection and commercialisation of data, while Ian Duffy exhibits broad experience in tech-related law at the intersection with data protection.

Lauded for ‘consistently delivering high-quality and pragmatic advice’, Mason Hayes & Curran LLP houses a market-leading data privacy and protection team, which acts for a high-profile client base of blue-chip and new generation tech clients. The group is spearheaded by Philip Nolan, who has a strong reputation for domestic and European data protection mandates, described as a ‘true expert in his field’. Oisín Tobin is highly skilled in complex regulatory matters, frequently assisting with the development and roll-out of innovative technologies, including advising on international expansion plans and managing regulatory risks. Robert McDonagh is a go-to for devising data protection strategies and compliance programmes.

Commended as ‘responsive, practical and trusted’, Matheson LLP covers a broad range of data privacy and protection issues, from tech transactions, tech regulatory advice, e-signatures and intermediary liability matters to other emerging and developing regulatory issues. The group is spearheaded by Anne-Marie Bohan, who leverages deep experience in the technology space to advise a high-profile client roster on regulatory rules and requirements. Michael Byrne is a seasoned technology litigator, whose workload encompasses contractual disputes, terminations, breaches of privacy and other alleged breaches. Deirdre Crowley is a key port of call for contentious and non-contentious digital economy, data protection, privacy, AI and cyber mandates. Davinia Brennan is another key figure within the group. Marie McGinley joined from Eversheds Sutherland in October 2025.

Well-equipped to act for multinational tech clients, including both customers and service providers, as well as the Data Protection Commission, McCann FitzGerald LLP is widely recognised for its data protection team, handling cybersecurity mandates, GDPR compliance, data processing work and international data transfers. Heading the group is Adam Finlay, who is praised for delivering a ‘consistently high level of service’; he is a leading expert in data protection and data security matters, frequently representing a range of private sector entities and public bodies. Paul Lavery is a key port of call for GDPR concerns and its overlap with data protection obligations, while Douglas McMahon has specialist knowledge of data protection and privacy matters.

Well-equipped to handle the full gamut of data protection, e-privacy, AI, cybersecurity and data protection issues, William Fry LLP showcases a ‘blend of deep legal expertise and a truly commercial, solutions-focused approach’ when representing high-profile names in the tech space, and large household companies. Leading the group is ‘highly accomplished lawyer’ Leo Moore, who excels in mandates at the intersection of tech, data and IP. Specialising in new technologies is David Cullen, who frequently manages protection, development and commercialisation mandates. John O’Connor has strength in data protection, AI and cybersecurity law, particularly in multi-jurisdictional data protection matters. Rachel Hayes is a key figure within the group.

Leveraging a ‘combination of deep subject-matter expertise and a practical, solutions-focused approach’ throughout the privacy and data protection realm, Byrne Wallace Shields LLP is well placed to offer a comprehensive service for data protection mandates. Practice head Seán O’Donnell utilises deep knowledge in regulatory interpretations, investigations and white-collar crime mandates to provide privacy law expertise. Zelda Deasy is a key representative of private sector organisations and public bodies on the full range of data protection matters, with a niche focus on AI.

With strength across the insurance, financial, health, medicine and health products, regulatory, property and sports sectors, DAC Beachcroft Dublin has the resources and expertise to handle complex data protection and cyber incident mandates. The group is jointly led by Rowena McCormack, who is a leading expert in data, privacy and cyber mandates, and Aidan Healy, who frequently leads on matters involving emerging areas such as AI and the EU’s AI Act, Data Act and DORA.

DLA Piper Ireland LLP provides key advice to major domestic and global organisations on complex and high-profile data protection, privacy and cybersecurity mandates. Leading the group is John Magee, who maintains a strong reputation in the data protection space, frequently representing Irish and international organisations on global data governance, cross-border data transfers, breach responses, and regulatory investigations. Mark Rasdale leverages extensive experience across a broad range of commercial, technology, IP and data privacy compliance matters, and Gavin Woods is a seasoned commercial litigator who also contributes to the practice.

Pinsent Masons LLP acts across the tech, information law and AI sectors, providing deep expertise across contentious work, data protection compliance, remediation projects, regulatory investigations, AI matters and e-commerce issues. Leading the group is founding partner Andreas Carney, who demonstrates considerable expertise in IT-related mandates, while Maureen Daly is a key contact for compliance with the EU AI act, AI copyright infringement and AI ownership mandates. Commercial litigator Lisa Carty excels in regulatory investigations and enforcement actions, and Karen Gallagher specialises in the life science sector, handling regulation, cyber risk, data protection and AI matters.

Singled out as a ‘genuine partner-led team’, Addleshaw Goddard excels in handling regulatory investigations, GDPR issues and data protection challenges. Practice head David Hackett utilises his deep sector knowledge to handle the preparation and review of privacy notices, security breaches, regulatory investigations, and subject access requests. Jane Farren has significant experience in data protection mandates, with specialist knowledge of IP, IT and e-commerce matters. Niall O’Brien is well versed in the full range of data protection and cybersecurity mandates,

Leveraging a ‘cohesive and knowledgeable’ data privacy and data protection group, Beauchamps LLP is well-equipped to handle the full gamut of transactional and advisory data protection and privacy mandates, with noted specialism in the tech, financial, health, retail and public sectors. The group is jointly led by technology lawyer David McMunn, who is recommended for his deep expertise in EU tech regulation and competition law, IP and AI law, and data protection and compliance matters; alongside Damian Maloney, who has significant experience in the IT sector. Edward Evans is a key port of call for sporting clients on media and rights-related issues, while Pat McInerney represents state and semi-state clients in a wide range of data protection and privacy matters.

Drawing on the bench strength of its international reach, Bird & Bird frequently acts on international and pan-European mandates involving cybersecurity, online safety, AI regulation, content moderation and EU digital regulation issues. Practice head Anna Morgan is described as ‘proactive and pragmatic’, with standout knowledge across the full spectrum of advisory, regulatory, transactional and data protection work. Deirdre Kilroy has expertise in tech, data and IP transactions, placing particular focus on AI, robotics, social media, big data, digital supply chain and ‘frontier’ technologies, while Ann Henry is well-equipped to handle the full spectrum of data and IP issues.

Peter Bolger and Robert Haniver lead the practice at EY Law Ireland, which regularly advises Irish and multinational clients, delivering advice on data governance, tech law, cybersecurity law, AI, consumer law, contract law, open data issues and accessibility matters. Bolger has deep experience in data protection and privacy mandates, particularly those involving GDPR projects and emerging data protection issues arising from the use of AI and Web3 technologies, while Haniver is a leading name within data privacy and data protection space, frequently assisting with cyber mandates.

Fieldfisher has comprehensive knowledge across data protection and privacy law, cybersecurity law and AI governance issues. The group is steered by Leonie Power, who draws on deep experience in EU law to support a diverse client roster, spanning public and private sector clients.

Hayes Solicitors LLP acts for a diverse client base across the healthcare, tech, retail, media, marketing and finance spaces, particularly in the context of data protection and privacy laws. Laura Fannin leads the team, exhibiting a significant understanding of GDPR compliance, international data transfers, regulatory investigations, data breaches, remediation strategies, private policies and policy documentation. Denise O’Shaughnessy handles data protection, tech and privacy matters, with a particular focus on AI work.

Maples Group handles the full gamut of data protection, cybersecurity, commercial, IP and technology mandates, frequently representing significant scaling, asset management and tech companies. Claire Morrissey heads up the practice and is a go-to for tech clients, including those working with emerging technologies such as AI, ML and IoT, seeking expert advice on commercial contracts, outsourcings, IP issues and data mandates. Colm Rafferty and Morgan Pierse are well versed in corporate and commercial mandates with overlapping data issues.

RDJ LLP fields a ‘straightforward, partnering, collaborative, and client-focused’ team which is well-equipped to act on the full range of privacy and data protection mandates, as well as offering clients a cyber and data security incident and response service. Heading the group is Ricky Kelly, who maintains a strong reputation in acting for insurance clients in cybersecurity mandates, personal data breaches, security incident reports and regulator investigations. Jennifer Noctor is a key contact for insurance companies, as well as state and private entities, frequently advising on compliance with data protection law.

Taylor Wessing fields a team of experts across data protection and cybersecurity mandates, acting for a client roster of tech pioneers, early stage companies, scale-ups and international big tech companies. Jo Joyce steers the group and is recommended for work across all areas of digital regulation, data protection and cybersecurity, with noted experience working with international businesses looking to operate in or from Ireland.

Shane Martin leads the data privacy team at Walkers, which sits within the firm’s wider regulatory practice. The group is particularly noted for its expertise in the financial services and fintech spaces, counting investment companies, funds, payment providers and crypto-asset exchanges as clients.