Having developed its own technology, including an enforcement tracker, data breach app and data law navigator, CMS is well positioned to advise on the full range of data protection matters. The team advises on GDPR and cyber security, as well as on the benefits and risks of AI developments. With an ever-growing roster of multinational companies, the practice is becoming renowned for its international capabilities in this space. Dóra Petrányi heads the team with ‘tremendous leadership’, bringing experience in the TMT sector across Hungary and the CEE region to the group. Márton Domokos is an ‘asset to the firm’ and focuses on data protection, IP matters and commercial transactions in the TMT sector. Anna Zsófia Horváth assists clients with EU policies relating to data protection and IT, while Katalin Horváth contributes unique fintech experience. Gábor Bertók bolsters the team’s dispute resolution offering, with extensive experience in data protection and IP litigation.

Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

  • 'The team is professional and responsive to the client's requests - unwavering commitment to client success. They are not just legal advisors, but rather strategic partners dedicated to achieving the best outcomes for their clients. They have deep industry knowledge, and relentless pursuit of excellence - a group of passionate professionals who stop at nothing to secure the best results for their clients, offering a unique blend of experience, dedication, and forward-thinking solutions that empower their clients to face any legal challenge with confidence.'

  • ‘The team is dedicated and has deep and comprehensive knowledge in data protection. They are always provide responses in a short period taking into consideration our business requests. We work together with Dóra Petrányi, Márton Domokos and Katalin Horváth. Dóra has an outstanding knowledge in TCM, Márton's practical, problem-solving approach is valued a lot.'

  • 'We appreciate their client-first attitude and always-timely delivery.'

  • 'Márton Domokos is excellent. He is an outstanding data privacy professional, he knows our business very well and always provides valuable tailor-made and timely legal advice.'

  • 'CMS Hungary have been able to appreciate the granular and nuanced regulatory developments taking place. I am very impressed with the quality of advice they provide. More importantly, they are able to look at the issues from the lens of their client and map the relevant guidance accordingly.'

  • 'They are always super prompt, ask questions to clarify issues, understand the bespoke requirements of clients and have consistently delivered very high quality work. The team is very inclusive in the approach and I really appreciate our co-operation.'

  • 'Márton Domokos is exceptionally talented and is an asset to the firm. He has a unique quality of understanding the scope of the work required and consistently delivers high quality expert work. He is thorough in his work, analytical, has excellent communication skills, is inclusive and great to work with.'

  • 'Dóra Petrányi has tremendous leadership in identifying the key areas where clients require support, is inclusive, works closely and collaboratively with clients and makes sure that the firm delivers high quality deliverables to clients.'

Key clients

  • ABB
  • Coca-Cola
  • Microsoft
  • Iron Mountain
  • OTP Mobile
  • Samsung Electronics
  • 4iG
  • e& (Etisalat Group)
  • ESAB
  • Kyndryl Holdings, Inc (a spin-off of IBM's infrastructure services business)

Work highlights

  • Advised 4iG on the €1.67bn acquisition of Vodafone Hungary and assisted with the data protection, IT and security due diligence of Vodafone Hungary.
  • Advising Samsung Electronics on data protection issues on a daily basis.
  • Advising Unisys on specific data protection matters on a cross-border basis.

Lawyers

Leading associates
Leading associates with regular involvement in their team's key work, and recognition from peers or clients as being ones to watch.
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Practice head

The lawyer(s) leading their teams.

Dóra Petrányi

Other key lawyers

Márton Domokos, Katalin Horváth, Anna Zsófia Horváth, Gábor Bertók