Zurich to Rottweil train with Deutsche Bahn (IC,RE)

Deutsche Bahn (DB) is Germany’s main train operator, running around 40,000 domestic and international services each day. Its fleet includes a variety of train types: high-speed ICE (Intercity Express) trains, reaching up to 300 km/h; IC (Intercity) and EC (EuroCity) trains for long-distance travel; and IRE (Interregio-Express), RE (Regional Express), and RB (Regionalbahn) services for regional and local connections. While bathrooms are standard on all trains, amenities such as onboard restaurants and free Wi-Fi are available only on certain train types and routes. DB offers a wide range of fares, including Super Saver, Saver, and Flexible tickets, along with discount cards like the BahnCard 25, 50, and 100. Additional options include single tickets, day tickets, and group tickets. Popular routes include Berlin–Munich, Hamburg–Frankfurt, Cologne–Stuttgart, Berlin–Dresden, and Hamburg–Cologne, as well as numerous regional services across Germany.

Südwestdeutsche Verkehrs-AG (SWEG) is a public transport company operating rail and bus services primarily in Baden-Württemberg, Germany, and some neighboring regions. The company was formed in 2018 from the merger of Südwestdeutsche Verkehrs-Aktiengesellschaft and Hohenzollerische Landesbahn. SWEG operates various railway lines, including the Achertalbahn, Münstertalbahn, and Harmersbachtalbahn, and is also involved in freight transport. They utilize different train types, such as Regio-Shuttle RS1, Talent 3, LINT 54, and Mireo Plus B. SWEG is owned by the state of Baden-Württemberg.