The Stockholm metro is the only underground system in Sweden and serves the city of Stockholm via 100 stations. The rail transport market is privatised, but while there are many privately owned enterprises, the largest operators are still owned by state. The counties have financing, ticket and marketing responsibility for local trains. For other trains the operators handle tickets and marketing themselves. Operators include SJ, Veolia Transport, DSB, Green Cargo, Tågkompaniet and Inlandsbanan. Most of the railways are owned and operated by Trafikverket.