| Compañía ferroviaria |
Logotipo y vínculo |
S-Bahn Liechtenstein  |
 |
Sabah State Railway (SSR)  |
 |
Sächsische Dampfeisenbahngesellschaft mbH  |
 |
| Sächsisch-Oberlausitzer Eisenbahn |
 |
SAD Trasporto Locale SpA  |
 |
Sagami Railway (Sotetsu line)  |
 |
| Sagano Scenic Railway |
 |
Sakartvelos Rkinigza  |
 |
Salzburger Lokalbahn  |
 |
| Sangi Railway |
 |
| Sanriku Railway |
 |
| Sanyo Electric Railway |
 |
Saudi Arabia Railways (SAR)  |
 |
| Saudi Railways Organization (SRO) |
 |
| SBB Deutschland |
 |
SC Softrans SRL  |
 |
| SC Transferoviar Calatori |
 |
ScotRail  |
 |
| Seibu Railway |
 |
| Semboku Railway |
 |
| Sendai Airport Transit |
 |
| Serco Caledonian Sleepers Ltd |
 |
Serveis Ferroviaris de Mallorca  |
 |
| Shikoku Railway |
 |
| Shimabara Railway |
 |
| Shin-Keisei Electric Railway |
 |
| Shinano Railway |
 |
| Shintetsu |
 |
| Shizuoka Railway |
 |
| Shonan Monorail |
 |
Shongololo Express  |
 |
Shore Line East  |
 |
| Shosholoza Meyl |
 |
| Sistemi Territoriali SpA |
 |
Skånetrafiken Pågatågen  |
 |
Slovenske železnice  |
 |
| Società Ferrovie Udine-Cividale (FUC) |
 |
| Società Subalpina Imprese Ferroviarie |
 |
Société Commerciale des Transports et des Ports  |
 |
Société Nationale des Chemins de fer Belges (SNCB)  |
 |
| Société Nationale des Chemins de fer du Congo (SNCC) |
 |
Société Nationale des Chemins de fer Français (SNCF)  |
 |
Société nationale des chemins de fer luxembourgeois CFL)  |
 |
Société Nationale des Chemins de fer Tunisiens (SNCFT)  |
 |
Société nationale des Transports Ferroviaires (SNTF)  |
 |
Société Nationale Industrielle et Minière (SNIM)   |
 |
Sofse  |
 |
| Sonoma-Marin Area Rail Transit |
 |
| Sounder Train |
 |
South Caucasus Railway  |
 |
South Central Railway  |
 |
| South East Central Railway |
 |
| South Eastern Railway |
 |
| Southeastern |
 |
| Southeastern Pennsylvania Transportation Authority (SEPTA) |
 |
| South Florida Regional Transportation Authority (SFRTA) |
 |
| Southern |
 |
| South Hokkaido |
 |
| South West Trains |
 |
| South Western Railway |
 |
| South Western Railway |
 |
Srbija Voz   |
 |
Sri Lanka Railways  |
 |
St. Kitts Scenic Railway  |
 |
Standard Gauge Railway Uganda  |
 |
| Stansted Express |
 |
State Railway of Thailand  |
 |
| Statens Järnvägar (SJ) |
 |
| Stauden-Verkehrs-GmbH (SVG) |
 |
| Steiermarkbahn Transport und Logistik GmbH (STB) |
 |
| Stern & Hafferl Verkehrsgesellschaft mbH |
 |
| Süd-Thüringen Bahn GmbH (STB) |
 |
Sudan Railways Corporation (SRC)  |
 |
Südostbahn (SOB)  |
 |
| Südtirol Bahn |
 |
| Südwestdeutsche Verkehrs AG (SWEG) |
 |
| SunRail |
 |
Supreme Railways  |
 |
| Sursee-Triengen-Bahn AG |
 |
Sydney Trains  |
 |
Syrian Railways General Est. (CFS)  |
 |
| SZU Sihltal Zürich Uetliberg Bahn AG |
 |
Szybka Kolej Miejska (PKP Trójmieście)  |
 |
| Szybka Kolej Miejska w Warszawie |
 |
