Železničná Spoločnosť Cargo Slovakia (ZSSK Cargo)– the state-owned railway cargo company
Železnice Slovenskej Republiky (ŽSR) – the state-owned railway infrastructure operator
Železničná Spoločnosť Slovensko (ZSSK) – the state-owned rail passenger transport company
RegioJet – a Czech private rail passenger transport company, which plans to provide services in Slovakia
Wagon Service Travel – a private firm offering charter train services throughout Europe