NS wants to lead in sustainable mobility. Our suppliers help us to make rail transport more attractive, cleaner and more sustainable.


Our suppliers play an essential role in making our services and products more sustainable. Consequently, we like to collaborate closely with our suppliers and challenge them to put forward innovative and sustainable solutions.


We collaborate with EcoVadis in order to define and measure our suppliers’ sustainability performance. EcoVadis specialises in analysing Corporate Social Responsibility (CSR) in companies by analysing the complete value chain. With more then 20,000 assessed suppliers worldwide, EcoVadis is the global market leader in the field of sustainability rating.

Read more about EcoVadis

The assessment method that has been developed by EcoVadis combines expertise relating to sustainability performance with information technology. The result tells us where your business stands in terms of sustainability. You receive concrete recommendations based on that result so that you can make improvements in the area of sustainability wherever necessary.  More information about EcoVadis and the assessment is available here. More information about the EcoVadis assessment in relation to criteria for suppliers is available here.


Railsponsible is the name for a sustainable procurement collaboration which NS has initiated together with the following partners in the European rail sector: Alstom, Bombardier, Deutsche Bahn, Knorr Bremse and SNCF.

The choice of the EcoVadis method as the standard for uniformly identifying, communicating and, where possible, improving supplier sustainability performance is one of the elements of this collaboration. More information about Railsponsible is available here.

NS Suppliers’ Code of Conduct

The standards and values that form our sustainability policy are documented in the NS Suppliers’ Code of Conduct. It contains elements of the United Nations Universal Declaration of Human Rights, the United Nations Global Compact, the International Labour Organization’s Fundamental Conventions, other relevant international conventions and national and local regulations. The NS Suppliers’ Code of Conduct also reflects the general NS Code of Conduct.