Marco de Benito has arbitrated disputes spanning infrastructure, energy, corporate, and commercial matters across multiple continents and legal systems, most of them without any connection to Spain.

He has worked under ICC, SCC, LCIA, the Swiss Centre, the Milan Chamber, and ad hoc with UNCITRAL Rules, with seats in Paris, London, Geneva, Zurich, Milan, and Madrid, among others.

Among the most significant: a dispute between multiple parties arising from the construction and operation of a railway infrastructure of historical importance in Saudi Arabia; a supply agreement dispute between an Italian and a Hong Kong company in connection with a natural gas extraction project in Nigeria; a road construction dispute in Armenia financed by the Asian Development Bank; a supply dispute between a Turkish and a Swiss company under the CISG; a dispute about a pioneering biomedical engineering project resolved by amiable composition.

He has also acted as coordinating expert in international litigation arising from the closure of ports in Africa following a coup d’état in Niger, and as procedural expert in proceedings before the High Court of England and Wales in connection with a major construction project in Africa.

Earlier in his career, he appeared as counsel in matters that tested the outer limits of Spanish international investment law—an action for annulment of an award arising from a bilateral investment protection treaty between France and Russia and proceedings in connection with the government’s veto, on national security grounds, of a foreign investment in a Spanish industrial company.