Bane NOR, Norway
  Société Nationale des Chemins de Fer Luxembourgeois (CFL), Luxembourg

DB Netz (DB), Germany

HŽ Infrastruktura (HŽ), Croatia

  Infrabel, Belgium
Network Rail, United Kingdom
   ÖBB Infrastruktur, Austria
ProRail, Netherlands
  Rete Ferroviaria Italiana (RFI), Italy