Chambers Review
Provided by Chambers
Chambers Global Guide
Arbitrators - Spain
Individual Editorial
Íscarof Íscar Arbitraje is active as an arbitrator in international disputes in post-M&A, insurance and construction.

Band 3
Provided by Javier Iscar de Hoyos
Javier is the founding and managing partner of Iscar Arbitraje. His practice focuses exclusively on his role as an international and independent arbitrator.
Javier has served as an arbitrator in over 30 international disputes under the rules of the major arbitral institutions such as the Arbitration Court of the International Chamber of Commerce (ICC), the Madrid International Arbitration Center - Ibero American Arbitration Center (CIAM – CIAR), the Arbitration Court of the Madrid Chamber of Commerce, the Arbitration Court of the Madrid Bar Association, the Barcelona Arbitration Tribunal (TAB), the Arbitration and Conflict Resolution Center of the University of Peru, or the Santiago Arbitration and Mediation Centre, among others.
Javier’s practice includes arbitrating disputes in the field of banking and financial law in cases related to contractual breaches, debt restructurings, conflicts over financial derivatives, and disputes regarding bank guarantees.
Javier has also acted in post M&A disputes in proceedings concerning price adjustment clauses and breaches of sale purchase agreements.
In the field of insurance law, his experience includes disputes over policy coverage, large-scale claims, and contractual liability.
Within the engineering and construction sector, Javier has been appointed arbitrator in disputes related to large infrastructure projects, including claims regarding the execution of EPC contracts, construction delays, cost overruns, and construction defects.
His deep knowledge of international contracts was gained over years of experience arbitrating complex disputes in energy, transportation, and industrial development projects.
Javier is frequently ranked as recommended arbitrator by international directories and speaks regularly in seminars and conferences.
Javier is a distinguished member of the international arbitration community. He actively contributes to the advancement and promotion of arbitration worldwide, particularly through his extensive collaboration with Latin American arbitral institutions. He is notably recognized for organizing the acclaimed annual event, 'The Arbitration Open'.
BAR, COURTS and MEMBERSHIPS
2024 - present | Vice-President of Madrid International Arbitration Center - Ibero American Arbitration Center (CIAM – CIAR)
2021 – present | Registered arbitrator of the Arbitration and Mediation Centre of the Quito Chamber of Commerce
2020 - present | Registered arbitrator of the Arbitration Centre of the Lima Chamber of Commerce
2019 – present | Foreign Corresponding Academician of the Colombian Academy of Jurisprudence
2018 – present | Distinguished Visitor of the Arbitration Centre of the Lima Bar Association
1994 | Admitted to the practice of law at the Madrid Bar Association
Full professional proficiency in Spanish and English as working languages, demonstrated in numerous bilingual proceedings. A solid knowledge of French, enabling effective communication in the multilingual environment of international arbitration.
Cross-border civil and commercial disputes involving Spanish and Latin American jurisdictions.
Broad expertise in complex disputes across key industries including Construction, Energy, Finance, Insurance, and M&A.
Provided by Chambers
Íscarof Íscar Arbitraje is active as an arbitrator in international disputes in post-M&A, insurance and construction.
Provided by Chambers
All of Javier's writings and documents are of a very high technical quality.
He has a really commercial mindset and is very practical. He is also understanding, which is very appreciated.
Javier Íscar de Hoyos is always very well prepared.
Javier has a lot of arbitration experience, which you can see when you work with him. He is a really well-known arbitrator.
Javier is very accessible, recognised and experienced.
All of Javier's writings and documents are of a very high technical quality.
He has a really commercial mindset and is very practical. He is also understanding, which is very appreciated.
Javier Íscar de Hoyos is always very well prepared.
Javier has a lot of arbitration experience, which you can see when you work with him. He is a really well-known arbitrator.
Javier is very accessible, recognised and experienced.