Ferrocarriles y Transportes Suburbanos

, commonly known by its acronym FTS, was a railway company in the Basque Country, Spain. Founded in 1947 as the merger of various railway companies, it operated several suburban rail lines in the Greater Bilbao area. FEVE took over its operations in 1972, which in 1982 were transferred to the new company Basque Railways.

History
FTS was founded in 1947 with the merger of two independent railways and two lines operated by another company: Aside from the railways, FTS also operated several tram and bus lines. The Bilbao–Plentzia line had been electrified since the 1920s, and shortly after the establishment of the new company the remaining non-electrified lines were electrified too.
 * Lutxana–Mungia railway, an independent company.
 * Bilbao–Lezama railway, an independent company.
 * Bilbao–Las Arenas–Plentzia railway and the Matico–Azbarren branch, operated by the Bilbao–Santander Railway Company.

The rolling stock was renovated starting in the 1950s, but by the 1960s the company was in financial difficulties. Rather than due to low ridership, they were caused by the artificially low fares imposed by the government, which didn't subsidize the company. In 1969, a landslide forced the closure of the Matico–Azbarren line and the relocation of the Bilbao–Lezama terminus out of central Bilbao. In 1975, due to the lengthening of the airport runway, most of the Lutxana–Mungia line had to close too. On 30 December 1977, FEVE took over the operations of the network.

Despite ceasing operations in 1977, the company wasn't immediately disbanded. In May 1983, after all the legal difficulties it faced were solved, the board of directors proposed the dissolution of the company, which happened in December that year.

Rolling stock
After the merger, the new company inherited the rolling stock owned by its predecessors. The steam locomotives inherited from the Bilbao–Lezama and Lutxana–Mungia railways were retired soon after the merger, as since 1950 the whole FTS network was electrified.