Praised for its ‘deep understanding of the legal landscape combined with international expertise’, NSN Law Firm advises on compliance matters across a variety of regulated sectors, and has unique capabilities in the life sciences and tech space. Especially skilled in compliance training programmes, the team is regularly instructed by clients to assist with due diligence investigations, data protection and AI issues, anti-corruption and anti-bribery frameworks, and labour law. Key lawyers include life sciences veteran Selma Ünlü, Bilge Derinbay, who has extensive knowledge in data protection and product liability, pharma specialist Aylin Aydoğmuş, Duygu Beyazo Ipek, who is experienced in compliance and anti-corruption matters, and Nazli Selek, who is knowledgeable in the maritime sector and of international sanctions.
Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

  • ‘What makes this firm stand out is its deep understanding of the legal landscape, combined with international expertise. The team consistently delivers high-quality, commercially focused advice that is both practical and responsive to our business needs.'
  • ‘The lawyers are consistently impressive—not only in their technical knowledge, but in their responsiveness, professionalism, and genuine commitment to client service.'
  • ‘The team is very strong in all things life sciences, including the compliance leg on this very well-regulated sector. They possess an in-depth knowledge of the relevant regulations both from a theoretical point of view but also, and more importantly, from a practical point of view.'
  • ‘Duygu Beyazo İpek has a vast knowledge in relation to the life sciences sector and its compliance andregulatory requirements.'
  • ‘Their readiness to address detailed questions, no matter how challenging, gave reassurance and confidence in their abilities.’
  • ‘This practice is remarkable for its problem-solving mindset and adaptability. Instead of offering one-size-fits-all legal advice, the team carefully studied our operational structure and tailored compliance strategies that integrate smoothly into our workflows.'

Key clients

  • Association of Research-Based Pharmaceutical Companies (AIFD)
  • Pfizer
  • Roche
  • CSL Behring
  • AbbVie
  • Boehringer Ingelheim
  • Viatris
  • Verus Pharma B.V.
  • Lundbeck

Work highlights

Acted as the central legal hub for a multi-jurisdictional pharmaceutical distribution project across Türkiye and five other jurisdictions, providing leadership to integrate regulatory, commercial, and compliance requirements.
Advised on the regulatory compliance of a digital health and wellness app, ensuring its features aligned with Turkish law.
Advised several multinational pharmaceutical companies on adapting to Türkiye’s new cross-border data transfer regime.

Lawyers

Next Generation Partners

Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.

Practice head

Selma Ünlü; Bilge Derinbay; Aylin Aydoğmuş; Duygu Beyazo İpek; Nazlı Selek