Patricia Ugalde Revilla

Middle East


Admitted to the Paris Bar and the Madrid Bar, Patricia Ugalde Revilla is counsel in the International Arbitration practice of the Paris office.

She regularly represents clients in commercial and investment arbitrations, mostly in connection with construction and engineering projects as well as with financial and commercial contracts.

Patricia joined Mayer Brown in 2015. Previously, she was an attorney in the Litigation and International Arbitration group of an international firm in Madrid.

In addition to her native Spanish, Patricia is fluent in English and French.



  • A construction consortium in two arbitration proceedings in connection with high value disputes arising from a contract for the construction of an airport in a country in the Middle East.
  • A consortium of international contractors in two wins obtained in two ICC arbitrations against the owners concerning the construction, commissioning and performance of two thermal-solar (CSP) power plants in Africa.
  • A Spanish EPC Contractor in a major victory obtained in an ICC arbitration in Geneva against an electromechanical subcontractor in a project for the construction of a refinery in South East Asia.
  • A Canadian investor in a NAFTA Arbitration under the Rules of ICSID’s Additional Facility, obtaining a win against the United Mexican States in a dispute related to Claimant’s investment in the real estate sector in Mexico (ICSID Case No. ARB(AF)15/2).


  • Recognized as a Future Leader by Who’s Who Legal


  • Universidad Pontificia de Comillas ICADE, Doble licenciatura en Derecho y Administración y Dirección de Empresas (with honors)

Inscription au Barreau

  • Paris
  • Madrid


  • Espagnol
  • Anglais
  • Français

Engagement professionnel et communautaire

  • Arbitral Women
  • Spanish Arbitration Club and the Women's Committee of the Spanish Arbitration Club
  • Society of Construction Law (Gulf)
  • ICC Young Arbitrators Forum
  • Young Practitioners in Construction in Paris