Tramvia Metropolità, SA (TRAMMET) is a company based in Barcelona

Barcelona

Barcelona is the second largest city in Spain after Madrid, and the capital of Catalonia, with a population of 1,621,537 within its administrative limits on a land area of...

, Spain

Spain

Spain , officially the Kingdom of Spain languages]] under the European Charter for Regional or Minority Languages. In each of these, Spain's official name is as follows:;;;;;;), is a country and member state of the European Union located in southwestern Europe on the Iberian Peninsula...

. It's a joint venture of the companies ¡FCC-Vivendi, COMSA

COMSA

Grupo COMSA is a Spanish construction and infrastructure company whose main business historically has been railway infrastructure work. Later the business expanded into more general construction and infrastructure work....

, Acciona-Necso, Alstom

Alstom

Alstom is a large multinational conglomerate which holds interests in the power generation and transport markets. According to the company website, in the years 2010-2011 Alstom had annual sales of over €20.9 billion, and employed more than 85,000 people in 70 countries. Alstom's headquarters are...

, Sarbus, Soler&Sauret, Banc Sabadell and Société Générale

Société Générale

Société Générale S.A. is a large European Bank and a major Financial Services company that has a substantial global presence. Its registered office is on Boulevard Haussmann in the 9th arrondissement of Paris, while its head office is in the Tours Société Générale in the business district of La...

. It was created in 1999 to operate the new tram systems in Barcelona, Trambaix

Trambaix

The Trambaix is a light rail system operated by TRAMMET connecting the Baix Llobregat area with the city of Barcelona, Catalonia. It opened to the public on April 5, 2004 after a weekend when the tram could be used free of charge....

 and Trambesòs

Trambesòs

The Trambesòs is a light rail system operated by TRAMMET connecting Sant Adrià de Besòs and Badalona with the city of Barcelona in Catalonia. The original line, known as T4, opened on May 8, 2004 and runs from Ciutadella-Vila Olímpica in Barcelona to the east of the city and extends roughly...

from April 27, 2000. The Trambaix network was inaugurated on April 3, 2004, whereas the inauguration of Trambesòs took a bit longer, May 8 of that year.