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“One interviewee highlights his strength in constitutional and administrative litigation, stating: “He is extraordinary, he designed an excellent strategy for us.” Another is quick to single him out for “his profound knowledge, experience and qualifications in public law.”

Chambers and Partners 2018

Sources highlight his: “Close, attentive working style and his extensive experience, which allows the client to see all the different possible scenarios.”

Chambers and Partners 2017

“He has a wealth of knowledge and he quickly analyses public law issues, then places them in a comparative framework.”

Chambers and Partners 2015

Arturo Fermandois

Founding Partner

Founding partner of Estudio Fermandois. Ambassador of Chile to United States from 2010 to 2012. He specializes in the areas of Public Law, Regulated Sectors and Dispute Resolution. Mr. Fermandois has advised multiple national and international companies in a vast array of matters, mostly linked with Public Law, as well as Ministries, Governmental Agencies and public-held companies. He is an arbitrator of the Arbitration and Mediation Center of the Santiago Chamber of Commerce since 2009. He has been arbitrator of the International Court of Arbitration, of ICC, Paris, (2020-2021). Mr. Fermandois is a professor of constitutional law at the P. Catholic University of Chile Law School and has published three books on public law and more than fifty specialized articles.


  • Master in Public Administration, Harvard University, 1994.
  • Visiting Scholar, Harvard Law School, 2004-2005.
  • Admitted as an attorney by the Supreme Court of Chile, 1987.
  • Law Degree, P. Universidad Católica de Chile, 1987.

Awards & Recognitions

  • “Ranked N° 1 in Chile´s field of Public Law for ten consecutive years (2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 and 2024), by Chambers & Partners, London (Band 1).”
  • “Recognized in the ‘Hall of Fame’ category by the international ranking Legal 500 in the field of Public Law.”
  • “Monseñor Carlos Casanueva” award, P. Universidad Católica de Chile, 1987.
  • “Teaching Excellence Award”, P. Universidad Católica de Chile Law School, 2009.
  • “Roberto Peragallo Silva Teaching Excellence Award”, P. Universidad Católica de Chile Law School, 2016.

Memberships & Academic Activities

  • Tenure professor of Constitutional Law, P. Universidad Católica de Chile.
  • Director of Public Law Department, P. Universidad Católica de Chile (2015-2018).
  • Member of the Chilean Bar Association.
  • Academic Director of the Master in Law 2012-2014.


  • Spanish and English.


Last published works