In England, the infrastructure (track, stations, depots and signalling chiefly) is owned and maintained by Network Rail, a not-for-profit company. Passenger services are operated by train-operating companies (TOCs), which are franchises awarded by the Department for Transport (in England). Examples include Avanti West Coast and East Midlands Railway. Freight trains are operated by freight operating companies, such as DB Cargo UK, which are commercial operations unsupported by the government. Most train operating companies do not own the locomotives and coaches that they use to operate passenger services. Instead, they are required to lease these from the three rolling stock companies (ROSCOs), with train maintenance carried out by companies such as Bombardier and Alstom.