Since 2010, Italo has been an affiliate member of the International Union of Railways (UIC – Union Internationale des Chemins de Fer), an international railway sector organization that aims to promote rail transport worldwide, with a view to responding effectively to current and future challenges relating to mobility and sustainable development.

From 2022, the UIC introduced the Rail Sustainability index (RSi), a benchmarking tool for measuring the sustainability performance of rail transport based on the SGDs. The methods used for the index are drawn up and revised by the Steering Group, of which Italo is a member. The RSi consists of various KPIs for monitoring progress towards the achievement of 7 specific SDGs. In 2024, Italo took part again in the assessment process conducted by the UIC, improving on the rating achieved in 2023 and well ranking well ahead of the average for the sector.