Mario Arabistanov


Mario Arabistanov has demonstrated attention to detail and extreme ownership. (The Legal 500 2021)

Mario is always up for the challenge to explore another area of data protection in terms of a specific industry (The Legal 500 2021)

Thinks outside the box while concentrating on the result (The Legal 500 2019)

Efficient and knowledgeable (The Legal 500 2018)

Mario Arabistanov

Mario Arabistanov joined Kambourov & Partners in 2012 and is a key member of the TMT department.    

Mario helps major local and international sector undertakings in projects for the incorporation, structuring, M&As, share, assets and content deals, as well as licensing of telecom, tech and media operators. He assists diverse clients featuring telecoms, IT and data processing service providers, software developers, hardware suppliers, banks, on telecom licensing and compliance, content compliance, sector competition, exploitation, supply, and use of IT, networks and telecommunications, ISP and broadcast services.    

Mario's practice has a strong focus on personal data protection compliance. 


  • Sofia University (LLM, 2015)
  • Diploma course, specialising in English and European law (British Law Centre)


  • Sofia Bar Association