Infratek Group AS, together with its subsidiaries, provides technical services for the development and operation of critical infrastructures in Norway, Sweden, and Finland. The company engages in the operation, maintenance, and construction of electricity grids and facilities; maintenance, operation, and production of lighting systems for public and industrial environments; planning, construction, emergency response, and repairing of the temporary power systems; planning and construction of power grids; installation of substations; and provision of mechanical services. It is also involved in the building and reconstruction or renovation of tracks, points, electric power, aerial lines, and signaling systems; audit of points or aerial lines; inspections of welding works; repair and maintenance of cables; and safe switchgear operations. In addition, the company offers thermography and internal control services; products and maintenance services for transformer stations, power cables, and high voltage power lines for central and regional grids; and audit/maintenance, condition monitoring, analysis, and counseling services for power generation plants, turbines, generators, reservoirs, hatches, and pipes. Further, it plans and builds stations and production grids from wind farms to grid owners, as well as provides maintenance, emergency response, and troubleshooting services; delivers and installs real-time information systems for public transport at bus stops, tram stops, and subway stations; and offers mobile cable troubleshooting services. Additionally, the company builds charging stations for electric cars. Infratek Group AS primarily serves grid owners, energy companies, and the public sector. The company was formerly known as Heraldic Holding AS and changed its name to Infratek Group AS in March 2014. Infratek Group AS was founded in 2002 and is headquartered in Oslo, Norway. As of December 21, 2017, Infratek Group AS operates as a subsidiary of VINCI Energies S.A..