EU NATIONAL RAILWAYS ENTITIES

1. Austria: Österreichische Bundesbahnen (ÖBB)
2. Belgium:  Nationale Maatschappij der Belgische Spoorwegen (NMBS) - Société Nationale des Chemins de fer Belges(SNCB)
3. Bulgaria : Balgarski Darzhavni Zheleznitsi (BDZ)
4. Croatia : Hrvatske Željeznice (HŽ)
5. Czech Republic: - České dráhy (ČD)
6. Cyprus: Cyprus Government Railway (CGR)
7. Denmark: Danske Statsbaner (DSB)
8. Estonia: Eesti Raudtee (EVR)
9. Finland: Valtion Rautatiet (VR)
10. France: Société Nationale des Chemins de Fer Français (SNCF)
11. Germany : Deutsche Bahn (DB)
12. Greece : Hellenic Railways Organisation (OSE)
13. Hungary: - Magyar Államvasutak (MÁV)
14. Ireland: - Iarnród Éireann (IÉ)
15. Italy: Ferrovie dello Stato (FS)-Trenitalia
16. Latvia: Latvijas dzelzceļš (LDZ)
17. Lithuania: Lietuvos Geležinkeliai (LG)
18. Luxembourg: Société Nationale des Chemins de Fer Luxembourgeois (CFL)
19. Netherlands : Nederlandse Spoorwegen (NS)
20. Poland : Polskie Koleje Państwowe (PKP)
21. Portugal: Comboios de Portugal (CP)
22. Romania : Căile Ferate Române (CFR)
23. Slovakia : Železnice Slovenskej republiky, a. s. (ŽSR)
24. Slovenia: Slovenske železnice (SŽ)
25. Spain: Red Nacional de los Ferrocarriles Españoles (RENFE)
26. Sweden-SJ AB (SJ)
27. United Kingdom : British Rail (BR)

Cross Border Cooperation

1. InterCityExpress (Germany, The Netherlands, Belgium, France, Denmark, Switzerland and Austria)
2. Thalys (France, Germany, Belgium, The Netherlands)
3. Enterprise (Republic of Ireland & Northern Ireland (United Kingdom)
4. Eurostar (United Kingdom, France, Belgium)
5. EuroCity/EuroNight (Conventional trains operated by nearly all Western and Central European Operators)
6. TGV (France, Belgium, Italy, Switzerland, Germany, Luxembourg)
7. Elipsos (France, Spain)
8. Trenhotel (France, Spain, Portugal)
9. Oresundtrain (Denmark, Sweden)
10. SJ 2000 (Sweden, Norway, Denmark)
11. NSB (Sweden, Norway)
12. Allegro (Finland, Russia)
13. Railjet (Austria, Germany, Switzerland, Hungary, Czech Republic, Italy)
14. Belgrade-Bar Railway (Serbia, Montenegro)

Night trains

Nightjet (stylised as nightjet) is a train category operated by Austrian railway company Austrian Federal Railways (ÖBB) for overnight passenger train services. It was introduced in December 2016. Nightjet services replaced some City Night Lineservices after Deutsche Bahn stopped operating night train services in December 2016. Nightjet operates in Austria, Germany, Italy and Switzerland, there are cooperations to other countries (Croatia, Hungary, Poland, Slovakia) that operate under the label Nightjet Partner.

1. ÖBB (Wien-Linz-Innsbruck-Feldkirch-Bregenz)
2. ÖBB (Villach-Bad Gastein-Innsbruck-Feldkirch)
3. ÖBB (Wien-Linz-Salzburg-Innsbruck-Zurich)
4. ÖBB (Graz-Leoben-Innsbruck-Feldkirch-Zürich)
5. HŽ (Nightjet Partner)(Zagreb-Ljubljana-Villach-Feldkirch-Zürich)
6. ÖBB (Hamburg-Berlin-Frankfurt-Freiburg-Basel-Zürich)
7. ÖBB (Wien-Linz-Nürnberg-Hannover-Hamburg)
8. ÖBB (Wien-Linz-Nürnberg-Frankfurt-Köln-Düsseldorf)
9. ÖBB (Innsbruck-München-Frankfurt-Köln-Düsseldorf)
10. ÖBB (Innsbruck-München-Nürnberg-Hannover-Hamburg)
11. MÁV (Nightjet Partner) (Wien-Dresden-Berlin)
12. MÁV (Nightjet Partner) (Budapest-Wien-Linz-Salzburg-München)
13. ÖBB (Wien-Villach-Bologna-Florence-Rome)
14. ÖBB (Wien-Villach-Verona-Milan)
15. ÖBB (Wien-Linz-Salzburg-Villach-Udine-Venice)
16. ÖBB (Wien-Villach-Bologna-Florence-Pisa-Livorno)
17. ÖBB (Munich-Salzburg-Villach-Bologna-Florence-Rome)
18. ÖBB (Munich-Salzburg-Villach-Verona-Milan)
19. ÖBB (Munich-Salzburg-Villach-Udine-Venice)
20. HŽ (Nightjet Partner) (München-Ljubljana-Zagreb)
21. HŽ (Nightjet Partner) (München-Opatija-Rijeka)
22. PKP (Nightjet Partner) (Wien-Ostrava-Katowice-Warschau)
23. PKP (Nightjet Partner) (Wien-Ostrava-Krakau)
24. ZSSK (Nightjet Partner) (Wien-Poprad-Kosice)
25. CD (Nightjet Partner) (Zürich-Feldkirch-Linz- České Budějovice – Prag)