Railway companies covered by the pass

Check this page for an overview of the participating train, ferry and public transport companies in the 30 countries where the Interrail passes are valid.
 

Railway companies

CountryTrain companiesFerry companiesPublic transport companies
AustriaÖBB, plus the private train companies ROeEE / GYSEV and Westbahn-S-Bahn: Vienna and Innsbruck
BelgiumNMBS / SNCB--
Bosnia HerzegovinaZFBH  
BulgariaBDZ--
CroatiaHZ--
Czech RepublicČD--
DenmarkDSB, and private train companies: Arriva, DSB S-Tog and DSB-ØresundFjord Line-
FinlandVR and private bus companies: Veljekset Salmela and Net-matkatFinnlines, Tallink Silja Oy, Viking Line-
FranceSNCFIrish Ferries-
GermanyDeutsche Bahn (DB) and various private companies (see pdf-document for complete list)FinnlinesS-bahn
Great BritainNational RailIrish Ferries, Stena Line-
GreeceTRAINOSESuperfast Ferries, Minoan Lines, Grimaldi Lines, Blue Star Ferries -
HungaryMÁV-START and private railway company: GySEV/Raaberbahn--
IrelandIrish RailNI RailwaysIrish Ferries, Stena Line-
ItalyTrenitalia and Trenord, Leonardo Express (Roma Termini to Fiumicino Airport) and MicotraGrimaldi Lines, Superfast Ferries, Blue Star Ferries, Minoan Lines-
LuxembourgCFL--
FYR MacedoniaMZ--
MontenegroŽCG--
The NetherlandsNS and private railway companies: Arriva, Connexxion, Keolis, Syntus, Veolia and DB RegioStena Line-
NorwayNSBFjord Line-
PolandPKP and local-government run companies: Koleje Dolnoslaskie and Przewozy RegionalneFinnlines-
PortugalCP--
RomaniaCFR--
SerbiaSV (Serbian Railways)--
SlovakiaZSSK--
SloveniaSZ--
SpainRENFE including FEVEBalearia, Grimaldi Lines-
SwedenSJ and private railway companies: Arlanda Express, Arriva, Inlandsbanan, JLT, Norrtåg, Skånetrafiken, Tågkompaniet, Värmlandstrafik and Västtrafik.Finnlines, Tallink Silja Oy, Viking Line, Destination GotlandLändstrafiken in Norbotten, Veljekset Salmela, Net-matkat
Switzerland

SBB/CFF/FFS and various private railway companies:

Included railway companies

Discounted railway companies

--
TurkeyTCDD--