Mason Hayes & Curran LLP  maintains a strong track record for advising domestic and international companies on GDPR. Acting for a number of notable clients, including Meta, the practice assists data-driven companies, start-ups and government institutions. Philip Nolan  leads the practice, primarily focusing on GDPR compliance projects. Oisín Tobin  often assists clients with data privacy-related litigation, and investigations by European data protection authorities. Jevan Neilan is well-versed in the development of structures for international data transfers and data flows. Áine Quirke is noted for advising technology companies on their international expansion plans and privacy structures in Europe.

Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

  • ‘MHC are at the cutting edge of the post-GDPR data privacy/protection world. They advise many of the world's biggest companies on GDPR compliance and in ground-breaking regulatory inquiries, and completely up-to-speed on regulators' views on the key issues facing clients in this space.’
  • ‘Philip Nolan is the very best data privacy lawyer in Ireland. He has an encyclopedic knowledge of the law and practice in the area and uses this to provide strategic and commercial advice. Brian Johnston is a fantastic data privacy lawyer who (along with Philip) makes up a dream team for data protection advice and regulatory inquiries.’
  • ‘Sensible, practical and commercially aware advice.’
  • ‘James Fenelon is very commercially aware, helpful and engaged.’
  • ‘Philip Nolan stands out for its outstanding services to new clients and deep knowledge of privacy. His advice is practical and holistic. He listens and tailors his services to the client's special needs.’
  • ‘The team has exceptional legal and industry knowledge. It is well resourced and very responsive.’
  • ‘Oisin Tobin has exceptional industry knowledge. His advice balances insights on the latest legal developments with an understanding of relevant business considerations.’
  • ‘The DP team in MHC are a perfect mix of being expert in their field at all times, bringing a pragmatism and solution-oriented approach. Because of that reason, they are the sole external support we use in this area. They work extremely well with in-house counsel- partnering with the in-house lawyer to reach a solution that works for their particular industry or business.’

Key clients

  • Coinbase Global Inc.
  • Meta Platforms Ireland Limited

Work highlights

  • Advised Meta on the data protection commission’s decision in May 2023 regarding personal data transfers from the EU to the US.
  • Advised Coinbase on its global privacy policy update.
  • Advised Meta on the data protection commission’s investigation and inquiry into Meta’s processing of children’s personal data via Instagram.

Lawyers

Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.

Practice head

The lawyer(s) leading their teams.

Philip Nolan

Other key lawyers

Brian Johnston, James Fenelon, Oisín Tobin, Jevan Neilan, Áine Quirke