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Abigél Sill

Abigél Sill

managing associate

Pharmaceutical, Employment, Data
+36 1 889 2800
perjel
  • Co-author of the Hungary chapter in Chambers Climate Change Regulation (2023)
  • Eötvös Loránd University, Faculty of Law (2008)
  • ​Eötvös Loránd University, Specialist in Data Protection and Data Security Law (2016)
What are Abigél’s primary legal practice areas and specializations?

Abigél is an established privacy lawyer in Budapest, Hungary. Her primary legal practice areas and specializations include data protection law, labour and employment law, as well as consumer protection and advertising law. Having worked for one of the most renowned law firms in Hungary focusing on life sciences for over a decade, she has cultivated particular expertise in the pharma sector as well, combining regulatory, transactional, and compliance-focused experience.

Her work in this area covers advising on the stringent rules applicable to pharmaceutical promotion and related regulatory compliance specific to the healthcare sector. Drafting and reviewing contracts for global pharmaceutical companies is also at the focus-point of her practice, ensuring that distribution and licensing agreements meet both local and EU regulatory standards upon simultaneously reflecting her clients’ best interests. Beyond contract work, she provides strategic counsel on data protection – including employee data protection - and patient privacy, critical issues in the life sciences industry where the handling of sensitive health information is heavily regulated. Her background includes guiding multinational pharma clients through complex compliance training, policy development, and authority investigations. Taken together, her practice demonstrates a rare combination of sector-specific knowledge and cross-disciplinary legal expertise that makes her a trusted advisor to both local as well as global pharmaceutical and other life sciences companies operating in Hungary.

Where has Abigél gained her legal experience and professional expertise?

Abigél Sill has built her extensive legal career across several types of distinguished law firms in Budapest, Hungary, each providing unique expertise and client exposure. She spent over a decade at an outstanding practice that advises international and local pharmaceutical and medical device clients on a wide spectrum of regulatory and transactional issues, handling compliance, promotional and distribution-related matters.

Earlier in her career, she gained experience at a boutique law office with an international client portfolio specializing in automotive and manufacturing industries, handling privacy issues emerging in various scenarios, ranging from vehicle recall campaigns to matters revolving around employee data protection. In 2016, she earned an LL.M. in Data Security and Data Protection from Eötvös Loránd University, Budapest, Hungary. She also enhanced her international perspective through work experience gained at a prestigious global law firm in London, providing her with exposure to international legal standards and practices.

This progression through different types of legal practices has provided Abigél with comprehensive experience ranging from Hungarian labour law to cutting-edge international pharmaceutical and life sciences law, ultimately positioning her as an expert in specialized regulatory areas with strong international client service capabilities.

Which high-profile or representative legal cases has Abigél handled?

Abigél has served as lead counsel on various complex and strategically significant cases:

  • Comprehensive support and representation of a US MLM corporation active in the dietary and food supplement industry in a high-stakes Data Protection Authority (DPA) investigation, including issues concerning employee data protection.
  • Providing labour law support in a key M&A transaction for a shared service center of a technology-driven US corporation operating in Budapest, Hungary.
  • Advising Japanese-owned company active in the plasma industry on compliant practices for promoting plasma donation.
  • Comprehensive day-to-day support of US innovative pharmaceutical company in matters ranging from clinical trial procedures to pharma promotion in the field of prescription-only drugs and cross-sectoral privacy issues.
  • Representing multinational companies including a UK-seated airline in employment and administrative litigation.

While maintaining strict client confidentiality, her leadership of these engagements demonstrates both her cross-border legal proficiency and remarkable adaptability to complex regulatory environments, including the demanding compliance requirements of the pharma industry.

What academic background and professional qualifications does Abigél hold?
  • Law degree, Eötvös Loránd University, Budapest (2008)
  • LL.M. in Data Security and Data Protection, Eötvös Loránd University (2016)
  • Licensed lawyer, member of the Budapest Bar Association (2012)
  • Languages: fluent in English and conversational in German

These qualifications underscore her robust academic foundation and global perspective as a distinguished pharmaceutical and data protection practitioner in Budapest, as well as a recognized employment lawyer in Hungary.

What additional professional contributions demonstrate Abigél’s legal expertise?

Abigél actively contributes to the legal profession through mentorship, professional guidance, and her forward-thinking mindset:

  • Strategic guidance
    • As the head of her practice group, she plays a strategic role in guiding clients—especially in adapting to evolving regulatory frameworks such as the NIS2 Directive, EU AI Act, alongside existing structures like the GDPR, as well as the volatile and ever-changing landscape of pharmaceutical law in Hungary.
    • Her focus spans not only to legal compliance in relation to the existing regulatory framework but also legislative forecasting and integrating technological sophistication in legal service.
  • Knowledge sharing
    • She regularly addresses audiences through conference presentations, client trainings and workshops, as well as in-house corporate seminars.
    • Topics include labour law, employee data protection and various aspects of pharmaceutical law.
  • Mentorship
    • She is deeply committed to fostering meaningful mentorship relationships with candidate and junior lawyers, creating an open environment where questions are encouraged and knowledge transfer is prioritized above all else.
    • She takes particular satisfaction in sharing her specialized expertise in niche sectors, particularly the pharma industry, with emerging legal professionals.