Expert with over 30 years of experience leading Spanish and international arbitration and court proceedings; specializing in international arbitration, mainly concerning the construction, engineering and energy sectors, and litigation involving civil liability.

In the area of construction and engineering law, Alfonso Iglesia has represented Spanish and foreign companies in disputes relating to the implementation of projects in wide range of countries, including Spain, Peru, Colombia, Panama, Romania, Bulgaria, Morocco and Saudi Arabia. His advisory services range from the contract negotiation phase to defending clients in courts of justice and arbitration courts, including negotiation procedures, mediation, expert determination and disputes boards.

He has participated in ad hoc arbitrations, UNCITRAL arbitrations and arbitrations administered by the main international arbitration courts (e.g., ICC, CIADI, CPA) and Spanish arbitration courts (e.g., Court of Arbitration of Madrid, CIMA and TAB).

In the area of civil liability, he has participated in cases such as tobacco litigation (representing a multinational tobacco company in collective actions and actions for indemnity) and the lawsuits over the fire in the Windsor building in Madrid (representing the building owner), as well as defending technology companies in class action lawsuits.

He is a member of the International Bar Association, of the ICC Institute, and of the Chartered Institute of Arbitrators. He is vicepresident of the Spanish Arbitration Club and a member of the board of directors of the Spanish branch of the International Law Association.

He regularly lectures at conferences and seminars on alternative dispute resolution (ADR) and arbitration, international construction contracts and civil liability. He has participated in several publications and collective works on arbitration and construction.

He also lectures in the Master in Business Law at Universidad Pontificia Comillas-ICADE in Madrid.


  • Bachelor of Laws
    Universidad Complutense de Madrid (CEU San Pablo), 1987

    Advanced Management Program
    IESE Business School, Madrid, 2005


Recommended lawyer
Chambers Global, Chambers Europe, Leaders League, Expert Guides, Who’s Who Legal, European Legal Experts, Best Lawyers, Benchmark Litigation, Latin Lawyer, Global Arbitration Review, Legal 500 and Legal 500 Latin America in Litigation, Arbitration, Product Liability, and Real Estate & Construction

Lawyer of the Year
Benchmark Litigation Europe Awards, 2020