Isabel Martínez Moriel > Andersen > Madrid, Spain > Lawyer Profile

Calle de Velázquez, 110

Work Department

Privacy, IT & Digital Business; Anti-Trust and European Union




With an extensive experience in prestigious national and international law firms, Isabel Martínez Moriel specializes primarily in Competition and EU law as well as IT and Data Protection.

Her practice is concentrated on matters related to restrictive agreements, cartels, abuse of dominant position, merger control filings and state aids. Her experience includes counselling on antitrust proceedings before Spanish and EU competition authorities, appeals of sanctioning decisions before courts, drafting of compliance and cooperative programmes and advising on any matter related to Competition and EU law.

Likewise, she advices on data protection compliance, including international data transfers (authorizations, privacy shield, binding corporate rules, etc.) and legal proceedings before the Spanish Data Protection Agency; on IP agreements, unfair competition and on EU regulatory frameworks governing internet, consumers and life sciences as well as its implementation in Spain.

She has served both domestic and international companies as well as associations, public entities and holdings, acting in numerous relevant sectors (pharma and medical devices, insurance companies, financial services, infrastructure and public works, electronic communications, energy, investment and research projects, transport, retail, amongst others).

She is currently a lecturer at Complutense University of Madrid and regularly participates in MA in Legal Practice at Carlos III University. She regularly contributes articles and publications regarding law research and case law developments.

DPO and certified mediator registered with the Ministry of Justice.


Spanish, English, French


  • Ilustre Colegio de Abogados de Madrid, ICAM
  • Asociación Española de Defensa de la Competencia, AEDC
  • Asociación Profesional Española de Privacidad


  • Degree in Law, Universidad de Córdoba
  • M.A. in EC Competition Law, King’s College London
  • Master in International Law, Instituto de Estudios Bursátiles, IEB

Lawyer Rankings

Spain > Data privacy and data protection

Part of a global network with 280 locations worldwide and with offices in Madrid, Barcelona, Valencia and Seville, the privacy, IT and digital business group at Andersen assists national clients and major multinationals on the full range of data privacy and protection issues. Led by recently promoted partner, national coordinator and data privacy expert Isabel Martínez Moriel, the group’s comprehensive services cover: data protection impact assessments, international data transfers, data breaches and cybersecurity, GDPR compliance and proceedings before data protection authorities. Supported by associate and data compliance specialist María Zarzalejos, the team’s client base covers the food and beverage, insurance, marketing and financial services sectors.