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Versión en castellano

Postal address Main Office
Pza. Circular, 4 – 5ª Plta.
E-48001 Bilbao. Spain
Telephone +34 94 448 86 00   Fax +34 94 447 99 50
Other addresses
Postal address Railways Branch office
Francisco Gervás, 14 – 1º A.
E-28020 Madrid. Spain

Telephone +34 91 703 76 00   Fax +34 91 703 76 04  
Company data
Management team

General Manager: Manuel Martín Abella.. Railway Delegate: Enrique Ortiz Aparicio. Basque Country Delegate: Antonio Maestre García. Financial and Human Resources Director: Ramón Martínez Iglesias. Tender Director: Ignacio Gallego Ferreros.

Activity Construction of all kinds of civil works, buildings and special works. High specialization in construction and maintenance of railway infrastructure and superstructure for HST lines, conventional lines, tram and metro systems.

Main products and services

RAILWAYS: High technology for railways specialising in renovation, construction and maintenance of new and existing railway lines (both HST and conventional), as well as metro and tram lines.

CONSTRUCTION: high ways, roads, hydraulic works, urban developments, environmental actions, buildings.


Top products: TRAINING, CERTIFICATION, RESEARCH: 1. Structures and infrastructure monitoring through IoT sensors. INFRAESTRUCTURE: 2. Tunnel Enlargement System (TES). TRACK: 3. Automatic system for the selective correction of rail corrugation. 4. Machine for positioning and Squaring Railway Sleepers. Squaring machine.


Activities by year

INFRASTRUCTURE AND SUPERSTRUCTURE FOR HST LINES. New Railway Complex of Atocha Station (Madrid). Construction Project of Phase 2. Pasante Station Projects for the construction of the new access channel for the integration of High Speed in the city of Valencia, the expansion and remodeling of the Valencia Station - Joaquín Sorolla and the expansion of the Valencia - Joaquín Sorolla car park; Sevilla-Cádiz HST line. Platform and track, Section: Airport of Jerez de la Frontera Station-Cádiz. Duplication of railway tracks. Railway spur to Bajo de la Cabezuela dock; Madrid-Sevilla HST line Renewal of sleepers on Madrid-Sevilla HST line.; Madrid–Zaragoza–Barcelona– French Border HST Line. New Sant Andreu Station for Catalonia commuter trains network. Tracks and overhead contact system works; Vitoria–Bilbao–San Sebastián HST line. Platform. Section: Atxondo – Abadiño / Platform. Section: Mondragon-Elorrio-Bergara. Sector II. / Platform and track, Section: Astigarraga-Irun. Implementation of the UIC track width; Mediterranean Corridor Platform and tracks works for implementation of standard width. a) Section: Silla – Cullera, b) Castellbisbal-Martorell, c) Castellón Station; Special works: A High Speed Line connecting the stations of Atocha and Chamartin. (Madrid). Construction of a new tunnel by using a TBM and an UIC track width / Atlantic Axis high-speed rail linea. Section: Ulla Viaduct. (The bridge is a composite featuring a steel truss built on a concrete deck. It is composed of 3 main spans of 225 meters, 240 meters and 225 meters, making the principal span one of the largest in the world – the bridge also holds multiple records) / Madrid-Galicia HST line. Section: Silleda-Vedra-Boqueixón. Infrastructure works including the Ulla viaduct a lightly pointed arch, 168 m. of span and 105 m. of rise; Project design and track-laying. Section: Olmedo-Pedralba de la Pradería. 

HST-TRACK MAINTENANCE: Madrid–Barcelona HST line. Maintenance of infrastructure, track switches and crossings. Operating bases Brihuega y Calatayud (2024 -2028); Madrid-Asturias HST line. Maintenance of track, switches and crossings. Section: Galicia connection – La Robla - Pola de Lena (2023-2027). Madrid–Seville HST line. Maintenance of infrastructure, track switches and crossings. Operating bases Mora y Calatrava (2024 -2028); Madrid – Levante HST line. Maintenance and pre-maintenance service of the infrastructure, track, switches and crossings. Operating bases Villarubia de Santiago and Gabaldon (2020-2024). Madrid-Galicia HST Line. Section: Olmedo–Pedralba de la Pradería (25 years).

CONVENTIONAL LINES: ADIF. Railway actions: Track renewal, specific actions in Infrastructure and adaptation of the gauge of overpasses of the Bobadilla – Ronda section. New rail access to the Port of Seville. Castellón Station. New parking base for high-speed trains in Sant Andreu Comtal; Remodelling of the Madrid-Vicálvaro freight terminal. Phase 1, Subphase 1B and Subphase 1C; Replacement of current concrete track for a new railway track on ballast in Orcasitas Station (C-5 Cercanias Madrid Commuter rail network); Improvement works on the railway track. R16 Line (Rodalies de Catalunya´s commuter rail service). Section: Tortosa-L´Aldea / Conventional lines Maintenance (Infrastructure and tracks) ADIF (MIV): MIV 2021 LOT 1 Northwest / LOT 2 North Metric-Gauge lines: Infrastructure and track maintenance Adif network path. LOT 7 Metric Gauge Railway Network.

Renfe Operations (Spanish National Railway Network): Platform expansion at Asturias and Cantabria stations. Extension of train-maintenance workshops at Montcada.

STATE PORTS (PUERTOS DEL ESTADO). For Valencia Port Authority: Remodeling of the Príncipe Felipe Pier Railway Terminal; Improvement of the layout of the rail and road network, including a new classification yard, between the Poniente Pier and the Costa del Puerto Pier.

OTHER RAILWAY AUTHORITIES. For ETS: Tramway expansion Vitoria-Gazteiz to Salburu, second phase. Civil works. / New Station in Zarautz (Basque Country) / Maltzaga Station track renovation and new auxiliary track. / New emergency exits. Section: Bergara-Astigarraga / Additional platform works for the New Railway Network in the Basque Country. Section: Bergara-Astigarraga / Infrastructure maintenance and track Tramcar Vitoria / Infrastructure maintenance and track Tramcar Bilbao period 2019-2022. For Metro Madrid: Integral maintenance of switches and crossings for Metro Madrid. Lot 1 and emergency works / Infrastructure maintenance service for Metro de Madrid network Lot 4: Lines 6 and 11 / Infrastructure maintenance service for Metro de Madrid network Lot 6: Lines 9; For FGC: Track renewal between Muntaner and Tres Torres, Barcelona – Vallés Line. For TMB: Track renewal Line 3. Section: Maria Cristina and Plaza España; For AOPJA: Infrastructure and tracks maintenance for the bay of Cádiz tramway; For Seville Metro: Change embedded block system for ADH System (Bonded DFF); For Bilbao Metro: Maintenance of track superstructure and mechanized conservation of Bilbao Metro, on common section (Basauri-San Inazio), Líne 1 (San Inazio-Plentzia) and Line 2 (San Inazio-Santurtzi); For S.F.M.: Maintenance and Conservation Service of the Infrastructure and Track of the SFM network. New siding between Sineu and Petra on the Enllaç-Manacor line for SFM (Metric gauge railway network of Majorca).

CHILE (EFE): Contract for the provision of Railway Infrastructure Central Zone (CPIF CENTRO).


Areas Spain, Portugal, France and Latin America.

Certifications Quality Management System: UNE-EN ISO 9001:2015 certified by AENOR (ER 0440/1995)
Environmental Management System: UNE-EN ISO 14001:2015 certified by AENOR (GA-2000/0050)
Occupational health and safety management systems: ISO 45001:2018 certified by Lloyd’s Register (ISO 45001 – 00024484) - certified by Lloyd’s Register Occupational Risk Prevention Approval (PRL – 00031455)
R&D&i Management System: UNE 166002:2021 certified by AENOR (IDI- 0053/2011)
BIM Management System: ISO 19650-2:2017 certified by BSi (CNF 800118)
Penal Compliance Management System: UNE-EN ISO 19601:2017 certified by AENOR (GCP-2020/0004)
Anti-Bribery Management System: UNE-EN ISO 37001:2016 certified by AENOR (ASO-2020/0007)

Activities Infraestructure, Maintenance, Track.
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