FNM is the leading integrated sustainable mobility group in the Lombardy Region. It is the first organisation in Italy to combine railway transport services and rail management infrastructure with road transport and motorway infrastructure management.

FS SpA is the national railway company in Italy, both providing transport services and managing rail infrastructure.

RB Rail AS is the joint venture developing the Rail Baltica infrastructure project.

The state joint-stock company LDZ is the largest railway in the Baltic countries.

  Lietuvos Geležinkeliai is the largest railway group in the Baltic States, comprising passenger transportation, freight and infrastructure companies.  

CFL is the national railway company in Luxembourg, both providing transport services and managing rail infrastructure.

Rail freight operator based in Luxembourg.

ŽRSM Infrastructure is the Republic of North Macedonia's railway company managing rail infrastructure.

Railways of the Republic of North Macedonia Transport JSC Skopje is the country's freight and passenger railway operator.

Calea Ferată din Moldova, Partner of CER, is the Moldovan railway company. CFM operates both passenger and freight trains and manages the railway infrastructure in the Republic of Moldova.