S-Bahn Berlin GmbH is a public transportation company that operates the S-Bahn, a rapid transit system in Berlin, Germany. It is part of the larger Berliner Verkehrsbetriebe (BVG) network and provides essential connections across the city and its surrounding areas. The S-Bahn consists of several lines that serve both urban and suburban passengers, making it a vital component of Berlin's public transport infrastructure. Founded in 1924, the S-Bahn has undergone various changes and expansions over the years. It is known for its distinctive yellow trains and plays a crucial role in reducing traffic congestion by offering an efficient alternative to cars. The system is integrated with other forms of public transport, including buses and trams, ensuring seamless travel for commuters.