Trollhättan to Stockholm train with SJ

VR Group is a state-owned railway company in Finland, operating passenger and freight services in Finland and Sweden. They manage approximately 250 long-distance and 800 commuter rail services daily. VR offers various train types, including the high-speed Pendolino (Sm3), InterCity trains with double-deck coaches, and Sm2, Sm4, and Sm5 electric multiple units for commuter services. Ticket options include single, multi, and season tickets, with different travel classes like Eko and Ekstra, and specialized services such as night trains and car-carrier trains.

Tågåkeriet i Bergslagen (TÅGAB) is a Swedish railway company established in 1994 and headquartered in Kristinehamn. It operates both freight and passenger trains in Sweden and Norway. TÅGAB's passenger services include routes like Gothenburg-Karlstad-Kristinehamn-Falun/Mora and Karlstad-Stockholm, often utilizing Rc3 locomotives with passenger coaches or X10 railcars. For some regional passenger transport, TÅGAB collaborates with Tåg i Bergslagen, using Bombardier Regina and SJ X12 railcars. The company also handles freight traffic, particularly for industrial plants along its routes, and was one of the first private companies for rail freight transport in Sweden.

Mälartåg is a Swedish train company from the Mälardalen region operating in the Stockholm, Sörmland, Uppsala, Västmanland, Örebro and Östergötland. Mälartåg's train fleet consists of double-deckers and smaller regional trains with a maximum speed of 200 km/h.

Vy, formerly known as Norwegian State Railways (NSB), is a government-owned railway company that operates most passenger train services in Norway, as well as many bus services in Norway and Sweden. Vy offers intercity, regional, and commuter train services, connecting major Norwegian cities like Oslo, Bergen, and Trondheim, and also provides an international route between Oslo and Gothenburg, Sweden. Vy's train fleet includes electric multiple units like the Class 69, 72, 74, and 75 for commuter and regional services, and traditional locomotive-hauled trains for some intercity routes. Passengers can choose from various ticket types, including Single, Season, Lowfare, and Flex, with options for different comfort levels such as Plus, PlusNight lie-flat seats, and Sleeper compartments for overnight travel. Many trains offer amenities like free Wi-Fi, power outlets, and dining cars.

Västtrafik is a public transport provider in Sweden, offering a wide range of services to its customers. It operates a network of trains, buses, trams and ferries, with services running from early morning to late at night. The trains come in a variety of types, including regional, express and night trains. Regional trains are the most common, providing frequent stops and connecting smaller towns and cities. Express trains are faster, with fewer stops, while night trains offer overnight journeys. Västtrafik offers a range of ticket types, including single tickets, day tickets and season tickets. Onboard facilities include comfortable seating, free Wi-Fi, power outlets and a café car. The most popular routes for Västtrafik are between Gothenburg and Stockholm, Gothenburg and Malmö, and Gothenburg and Oslo. These routes offer frequent services and provide a convenient way to travel between the cities.