Denmark
| Aarhus Letbane | Light rail in and around Aarhus. |
| Arriva | Operator of local services around Aarhus. |
| Banedanmark | The Danish infrastructure operator. |
| Danmarks Jernbanemuseum | The Danish Railway Museum, located in Odense. |
| Din Offentlige Transport | Public transport in and around København. |
| DSB | The long distance passenger operator in Denmmark. |
| Lokaltog | Operator of local trains on Sjælland and Lolland-Falster. |
| Odense Letbane | Light rail in Odense. |
| Nordjyske Jernbaner | Operator of local services in Nordjylland. |
Finland
| HSL | Public transport (commuter lines, metro and trams) in and around Helsinki. |
| Nysse | Public transport in Tampere. |
| Ratikkamuseo | The Helsinki Tram Museum. |
| Suomen Rautatiemuseo | The Finnish Railway Museum, located in Hyvinkää. |
| VR | The Finnish passenger operator. |
| Väylävirasto | The Finnish Transport Infrastructure Agency. |
Norway
| BaneNOR | The Norwegian infrastructure operator. |
| Flytoget | The airport express service from Oslo Airport to the City Centre. |
| Norges Jernbanemuseum | The Norwegian Railway Museum at Hamar. |
| Oslo Sporveien | Operators of the Oslo Metro and Tram Networks. |
| Ruter | The public transport agency for Oslo and Akershus. |
| SJ Nord | SJ, the Swedish Passenger operator, also operate long-distance services in Norway. |
| Vy | Formerly known as NSB, Vy is the main passenger operator in Norway. |
Sweden
| Arlanda Express | Express Services from Stockholm Arlanda Airport to Stockholm Central. |
| Inlandsbanan | The Inland line, from Kristinehamn to Gällivare. |
| Järnvägens Museum Ängelholm | Formerly Banmuseum, this museum focuses on railway infrastructure in Sweden. |
| Järnvägsmuseet | The Swedish Railway Museum at Gävle, which is currently closed for renovation. |
| MTRX | Express trains between Stockholm and Göteborg. |
| SJ | The main passenger operator in Sweden. |
| SL | Public transport in and around Stockholm County. |
| Spårvägsmuseet | The Stockholm Transport Museum. |
| Trafikverket | The Swedish Transport Administration |
| Vy | Norway’s Vy operate overnight services from Stockholm to the North. |
| Västtrafik | Public transport in and around Göteborg. |
Other Societies
| Austrian Railway Group | For enthusiasts of the railways of Austria. |
| Benelux Railways Society | For all those with an interest in the railways and tramways of the Netherlands, Belgium, and Luxembourg. |
| French Railways Society | The French Railways Society is a group of like-minded individuals interested in French railways, railway models, other transport and (usually!) France in general. |
| German Railways Society | For enthusiasts of German Railways. |
| Italian Railways Society | For enthusiasts of Italian Railways. |
| Swiss Railways Society | The Swiss Railways Society was formed in 1980 for the purpose of bringing together those interested in Swiss Railways. |
Other links
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