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Sioufas & Associates Law Firm

Sioufas & Associates Law Firm

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Greece

3

Intellectual property

Sioufas & Associates Law Firm advises on IP rights, GDPR, and infringement matters. Practice head Marios Sioufas, an IP and corporate specialist, frequently handles trademark rights issues and cross‑border mandates, and is praised by clients for his ‘deep sector knowledge and remarkable ability to navigate complex legal and regulatory issues with clarity and confidence’. Other key contacts include Ioanna Sofrona, who focuses on dispute resolution.
Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

  • ‘The team distinguishes itself through a combination of technical excellence and commercial insight, delivering clear, practical solutions that align with clients’ business objectives. Clients should value the high level of partner involvement, responsiveness, and the ability to manage complex matters with efficiency and precision.'
  • ‘What makes this practice unique is the combination of deep legal expertise with a very pragmatic and business-oriented approach. The team is highly responsive, accessible, and consistently demonstrates a strong understanding not only of the legal framework but also of the practical realities of our sector.'
  • ‘The individuals we work with stand out for their professionalism, responsiveness, and ability to combine deep legal knowledge with practical business understanding. They differ from competitors through their clear communication, efficiency, and commitment to delivering timely, solutions-driven advice. What we value most is their collaborative approach, their reliability under pressure, and their dedication to building long-term trust.’
  • ‘This firm brings a unique combination of legal acumen, sector-specific knowledge, and strategic thinking that sets it apart in a competitive legal market. Their ability to distill complex legal frameworks into actionable guidance is particularly impressive, and their input has been instrumental in supporting critical corporate decisions. The team is composed of high-calibre professionals who work with consistency, integrity, and an admirable sense of accountability.'
  • ‘The individuals we work with at this firm demonstrate an impressive combination of professionalism, expertise, and strong interpersonal skills that elevate the quality of the collaboration. Marios Sioufas, in particular, stands out as a trusted advisor with deep sector knowledge and a remarkable ability to navigate complex legal and regulatory issues with clarity and confidence.'

Key clients

  • The Newtons Laboratory
  • Archimedes Technology Transfer Office of EKPA
  • Perfetti Van Melle
  • Public Group
  • Lafarge Group Heracles Cement
  • Ideal Standard, Villeroy & Boch
  • Elpen S.A.
  • Square Root S.A.
  • Aggelakis S.A.
  • Golden Hotels Group
  • Health Plus S.A.
  • Flexstores

Work highlights

Advised one of the biggest advertising companies in Greece, the NEWTONS LABORATORY, with regard to the clearing of intellectual property rights for an advertisement of one of the biggest electricity providers in Greece and the use of the PICASSO name.
Advised IDEAL STANDARD and VILLEROY & BOCH with regards to the infringement by a local merchant of its intellectual property rights in its photographs and trademarks.
Advised the transfer technology office ARCHIMEDES of the largest Greek University, EKPA, with regard to the registration of multiple intellectual property rights with regard to education, before the EUIPO and the national trademark office.
Practice head

Marios Sioufas

Other key lawyers

Ioanna Sofrona

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