Español CONTACT WEBMAP PORTAL Legal Notice WHO WE ARE COMMITMENT WORK WITH US MEDIA ROOM WHERE WE ARE 125 YEARS ACTIVITIES RAILWAY INFRASTRUCTURES HIGH SPEED LINES METROS TRAMWAYS TRACK RENEWAL MAINTENANCE INSTALLATIONS RAILWAY ELECTRIFICATION AND SYSTEMS INFRASTRUCTURES CIVIL WORKS ROADS TUNNELS BUILDING CONSTRUCTION Cultural facilities Institutional and office buildings Shopping and leisure centres Car parks Schools and colleges Hospitals and senior housing Residential buildings Sports facilities Industrial facilities Other HYDRAULIC PROJECTS PORT AND AIRPORT PROJECTS URBAN PROJECTS UPKEEP AND MAINTENANCE WATER TREATMENT AGGREGATE AND PRECAST CONCRETE AGGREGATE PRECAST CONCRETE ENGINEERING INSTALLATIONS AND SYSTEMS RAILWAY ELECTRIFICATION AND SYSTEMS ELECTRICITY TRANSMISSION AND DISTRIBUTION BIO&PHARMA SOLUTIONS FIRE PROTECTION AIRPORTS AND PORTS TELECOMMUNICATIONS MAINTENANCE AND SERVICES COMPREHENSIVE AND SPECIALISED MAINTENANCE FACILITY MANAGEMENT MAINTENANCE ENGINEERING ORNAMENTAL FOUNTAINS AND LIGHTING ENERGY SERVICE COMPANY (ESCO) INSTALLATION AND MAINTENANCE OF SECURITY SYSTEMS AUXILIARY SERVICES: CLEANING AND GARDENING TECHNOLOGY ENVIRONMENTAL INFORMATION SYSTEMS SOLUTIONS FOR WATER OPERATORS ENVIRONMENTAL AND HYDROLOGICAL MANAGEMENT PROFESSIONAL BROADCASTING CONCESSIONS RAILWAY CONCESSIONS ROAD CONCESSIONS REAL ESTATE CONCESSIONS RENEWABLE ENERGY ENERGY GENERATION SERVICES ENVIRONMENT INDUSTRIAL WASTE MACHINERY NEWS SNCF Logistics signs an agreement to purchase all of COMSA Rail Transport’s share capital[+] COMSA will build two access tunnels to the E4 motorway in Stockholm (Sweden)[+] COMSA Industrial will research the application of loT technologies in buildings aimed at automating its maintenance[+] Twitter PRESENCE Algeria Argentina Australia Brazil Chile Colombia Croatia Denmark France Latvia Lithuania Mexico Morocco Paraguay Peru Poland Portugal Romania Spain Sweden Switzerland Turkey Uruguay . Cookies allow us to offer our services. By using our services, you agree to our use of cookies. Accept More Information