Railway infrastructures

Specialist in turnkey railway projects

Madrid - Galicia high-speed line. Deza Viaduct (Spain)
Madrid-Seville high-speed line. Section: Adamuz-Villanueva, Córdoba (Spain)
High-speed line Antequera-Granada. Sections: Tocón-Valderrubio and Access to Granada. Granada station and assembly of Tocón-Granada track (Spain)
Palencia-León high-speed line. Construction of the Onzonilla-Estación de León section (Spain)
Madrid-Valladolid high-speed line (Spain). Construction of the Guadarrama Tunnel
Barcelona-Madrid high-speed line. (Spain) Section: Calatayud-Lleida
High-speed line Rome-Naples (Italy)
High-speed Atlantic axis. Construction of the high-speed line section between Soutomaior and Vilaboa, in Galicia (Spain)
Seville-Cádiz High Speed Line (Spain)

High-speed lines

COMSA has participated in the development of all high-speed lines in Spain since the construction of the first line in 1988. In total, it has built more than 800 km of double high-speed lines in Spain and Italy.

Metros and trams

COMSA Corporación has built more than 300 km of metros and trams in cities such as Madrid, Barcelona, Bilbao, Ankara, Mexico City, São Paulo, Dublin, Oporto and Lisbon.

Construction of the Odense tramway (Denmark)
Second phase of Line 4 of the Sao Paulo Subway (Brazil)
The Necatibey station of the Ankara metro (Turkey), built by COMSA, was chosen as the best medium-size railway station in Europe by the European Rail Congress.
Palma-University of the Balearic Islands Metropolitan Line, Palma de Mallorca (Spain)
Construction of the Bursa tramway (Turkey)
Construction of the Dublin Tramway (Ireland)
Barcelona Tramway (Spain)
Bilbao Metro (Spain)
Porto metro (Portugal)
Modernisation of the E59 railway track (Poland)
Modernisation of the railway section between Gradec and Sveti Ivan Zabno (Croatia)
Renovation of the track superstructure between the towns of Valadares and Gaia (Portugal)
Track renewal of the Belgrano Sur line (Argentina)
Rehabilitation and repair of the Barranco de Aguas viaduct on Line 1 of the Alicante Tram (Spain)
Track renewal on the Maçanet de la Selva-Caldes de Malavella section (Spain)
Maintenance of the high-speed line Madrid-Seville (Spain)
Track improvement on the Sorrento - La Salada section of the Belgrano line in the province of Santa Fe (Argentina)
Maintenance of the San Román bridge on the Bilbao-Ferrol conventional line (Spain)
Maintenance of track and overhead line of the railway lines of the northern area of Portugal

Refurbishment and maintenance

COMSA is a benchmark company in maintenance, conservation and refurbishment of conventional railway lines based on a century of experience. The group has renovated more than 1,600 km of track in Spain since 1999 and in Latin America.