COMSA Corporación companies specialize in the construction and maintenance of railway infrastructure and superstructure (for conventional rail, high-speed rail, tramways, metros and regional rail); engineering, installation and maintenance of overhead contact lines and AC and DC traction substations; engineering, design, development, installation and maintenance of railway safety and communication systems and network management systems and control centres; railway traction; manufacture and supply of ballast; construction of concrete sleepers for main track and sidings, as well as construction for civil engineering and building works; engineering projects and construction management. COMSA Corporación is also present in the field of railway concessions, full maintenance of railway vehicles as well as the renting of high-tech machinery.

Top products: INFRAESTRUCTURE: 1. Expansion of the Madrid Chamartín - Clara Campoamor station (Spain). 2. Construction of the new railway access to terminal T1 at Barcelona-El Prat Airport (Spain). TRACK: 3. Remodelling and electrification of the railway between the provinces of Vinkovci and Vukovar (Croatia). 4. Rehabilitation of La Mata - Colonia Jordán section of the Isthmus of Tehuantepec railway (Mexico).

Spain: With over 130 years of history, COMSA Corporación is a specialist in turnkey railway projects covering the fields of construction, installations and systems and maintenance of high speed, tramways, metropolitan and regional railways. In the high-speed sector, it has participated in the development of all Spanish lines. In this context, during 2021, the group has been awarded the contract for the remodelling and extension of Chamartín station in Madrid, which includes the construction of four additional tracks for high speed. In addition, COMSA is executing sector 3 of the Mondragón-Elorrio-Bergara branch line corresponding to the Basque Y, the construction of La Sagrera station in Barcelona and has carried out the maintenance of different sections of the Madrid-Seville and Madrid-Valencia high-speed lines. Within the framework of the development of the Mediterranean Corridor, it has executed the construction of the Río Andarax-El Puche section, the integration of the railway in the area of El Puche (Almería), and the implementation of standard gauge on the Martorell - Sant Vicenç de Calders section of the Corridor.

Also, its engineering business has developed the construction project of the overhead electric contact line facilities and associated systems for the section between Plasencia and Bifurcación Peñas Blancas of the Madrid-Extremadura high-speed line and the overhead contact line of the La Robla - Campomanes section of the León - Asturias high-speed line. The group has also executed the complete renovation of the catenary between Maçanet and Caldes de Malavella, and the maintenance of the overhead contact line, substations, stations and associated systems of FGV in Alicante.

Regarding its actions on conventional lines, it has assumed the construction of the new railway access to T1 at Barcelona-El Prat Airport, the remodelling of the Pobla Larga-Silla spur of the Valencia commuter train network and the track renewal of the Perthus tunnel on the Figueres - Perpignan line, among other projects.

On the other hand, its concessions area continues with the operation of the Malaga Metro, which recorded 4.6 million passengers in 2021, line 1 of the Murcia Tram and the Barcelona Tram.

Europe: Endorsed by its high specialisation and its century-long of experience, COMSA Corporación has opted for markets with high opportunities for the development of new infrastructures and the modernisation of existing ones. In this regard, it is currently completing the tramway in the city of Odense (Denmark) and has executed the remodelling and electrification of the railway between the provinces of Vinkovci and Vukovar (Croatia).

In Portugal, COMSA and the subsidiary in the Portuguese country FERGRUPO are executing the renovation project of the Beira Alta line, Pampilhosa - Santa Comba Dão section, and the construction of the Mealhada bypass, both of which are part of the Northern International Corridor and considered a priority in Portugal's Strategic Transport and Infrastructure Plan.

America: During the past year, COMSA Corporación also strengthened its railway business in Latin America. In 2021, the company expanded its contract portfolio in Mexico with the renewal of tracks and systems on Line 1 of the Mexico City Metro, among other projects. In Brazil, it completed the second phase of Line 4 of the São Paulo Metro.

In 2021 COMSA Corporación invested more than 8.5 million euros in R&D&i activities. Among the most outstanding projects in which the group is participating is 5GMed, where COMSA is part of the consortium of companies that is carrying out the deployment of 5G technology to guarantee the connectivity of the Spanish and southern French rail network. It is also worth mentioning its presence in the Safe4RAIL-3 programme, which is working on the development of technologies and devices for the next generation of the Train Control and Monitoring System (TCMS).