Mateo Alonso

Álvaro Mateo Alonso

Mateo Alonso

Álvaro Mateo Alonso

Senior Associate

Álvaro Mateo Alonso focuses his practice on European, US and Spanish antitrust and competition law as well as on EU regulatory law. From September 2019 to September 2020, Mr. Mateo Alonso was based in the Firm’s Washington DC office.

Mr. Mateo Alonso has worked in global cartel investigations and complex merger proceedings before EU and US authorities, and has been involved in investigations, including a US congressional investigation. He has also worked on foreign merger clearance proceedings in jurisdictions such as Mexico, Japan, Korea, China and Chile. In addition, Mr. Mateo Alonso has experience in appeal proceedings before the General Court of the European Union. His practice covers industry sectors including online platforms, financial services, biopharma, pharma, chemicals, telecommunications, energy, transportation and healthcare.

Mr. Mateo Alonso trained at the Antitrust Bureau of the New York State Office of the Attorney General, at the Directorate General for Competition of the European Commission and at the Competition Directorate of the Spanish Markets and Competition Commission. 

At the beginning of his career, Mr. Mateo Alonso was a finalist at the International Human Rights Speech Contests for Attorneys both in 2012 (organized by the Second World War Memorial for Peace of Normandy-Caen) and in 2016 (organized by the Paris Bar).

Insights & News


  • Education

    • LLM, Columbia Law School, 2019

    • LLM, UniversitĂ© de Caen Basse-Normandie, 2015

    • LLM, Universidad Complutense de Madrid, 2012

    • Law Degree, Universidad Complutense de Madrid, 2011

  • Admissions

    • Brussels

    • Madrid

    • New York

  • Languages

    • English

    • Spanish

    • French