
NSN Law Firm is distinguished by its deep expertise in the healthcare, pharma, and biotech sectors. The team advises clients on critical issues, including competition, data protection, advertising, and anti-corruption. Selma Ünlü, with over 30 years of experience, is a trusted advisor on life sciences matters, particularly to multinational pharma companies. Bilge Derinbay is recognised for her strong track record in dealing with government bodies, while Aylin Aydoğmuş provides valuable commercial insight into the pharma industry’s regulatory framework. Duygu Beyazo İpek specialises in drafting and implementing global compliance policies and SOPs for blue-chip corporations.
Testimonials
Collated independently by Legal 500 research team.
- 'NSN Law Firm possesses an exceptional understanding of the life sciences and healthcare sector, which has been pivotal in navigating the complex regulatory landscape inherent to these industries.'
- 'One of the key strengths of NSN Law Firm is their strong and mutually respected relationships with key regulatory institutions, particularly with the Turkish Medicines and Medical Devices Agency (TITCK).'
‘Great collaboration, high understanding and prioritizing important matters as much as we do, they execute them with great care and commitment.’
‘Reliability. Learning new perspectives from them and being shown that there is always a legal solution to everything.’
‘NSN provides excellent legal advice that is tailored to the needs of its international clients.'
‘Partners Selma Unlu and Duygu Ipek do a very good job in providing legal advice. In addition, they help out by providing a secondee on assignment. They provide a broad range of legal advice and make sure this is clear and to the point.'
‘Selma Ünlü - very experienced - Duygu Beyazo - very service-minded and deep expertise.’
‘This practice stands out due to its combination of deep legal expertise and a truly client-focused approach. What makes it unique is the ability to integrate legal strategy with clients' business objectives, trying to understand their industries, challenges, and long-term goals.'
Key clients
- Association of Research-Based Pharmaceutical Companies
- Pfizer
- Roche
- CSL Behring
- AbbVie
- Boehringer Ingelheim
- Viatris
- Verus Pharma B.V.
- Sandoz
- Lundbeck
Work highlights
- Advised a distribution company in Turkey on managing a series of critical regulatory audits.
- Advised a pharmaceutical distribution company in Turkey on a complex internal investigation.
- Advised a biotechnology company in Turkey on the transition of marketing authorizations.
Lawyers

Practice head
The lawyer(s) leading their teams.
Selma Ünlü, Bilge Derinbay, Aylin Aydoğmuş, Duygu Beyazo İpek