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.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘Philip Nolan is a true expert in his field. He is truly outstanding, unflappable, and usually has a smile on his face, which I appreciate. You would struggle to find a better Irish privacy lawyer, or indeed a better European privacy lawyer.'
- ‘Philip Nolan and his team are outstanding. I've worked with them for several years and they consistently deliver high quality and pragmatic advice.'
- ‘Oisin Tobin is outstanding in his field. His legal knowledge, judgement and commercial acumen are best in class. Nina Milosavljevic provides exceptional support with deep legal knowledge and unrivalled industry insight.'
- ‘They know the market, they're approachable, they're available, and have some excellent individuals on the team.’
- ‘Robert McDonagh is one of the best technical lawyers out there. Go to for difficult problems that need deep or lateral thinking.'
- ‘Incredibly knowledgeable and excellent market insight, client list is "who's who" of tech companies.’
- ‘Julie Austin is technically excellent and strategic.'
Key clients
- Coinbase Global Inc. Meta Platforms Ireland Limited Airbnb Ireland Unlimited Company WhatsApp Ireland Limited Fitbit International Limited Yahoo EMEA Limited Ancestry
Work highlights
Advised Meta on appeals arising from the largest fine ever issued under GDPR.
Acted for Meta and WhatsApp in national and EU-level appeals arising from very high-profile complaints and DPC inquiries regarding the scope of contractual necessity as a legal basis for certain processing activities.
Acted for Meta regarding its personalised advertising processing and the EDPB’s Pay or Consent Opinion, including in Meta’s annulment and damages action before the General Court of the European Union.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Practice head
Philip Nolan
Other key lawyers
Oisín Tobin; Robert McDonagh; Julie Austin; Nina Milosavljevic; Emma Finn; Holly Pratt Kelly; Áine Quirke; James Fenelon