Eltel AB engages in the provision of technical services for the critical infrastructure networks. It operates through the following segments: Power, Communication, and Transport and Defense. The Power segment comprises services for power transmission and power distribution; services for power transmission include design, engineering, installation and commissioning of energy transmission systems, high voltage power lines and substations. The Power distribution services include services to customers in diverse sectors, including power networks, substations and wind power parks. The Communication segment comprises services for fixed telecom and mobile telecom, fixed telecom services primarily relates to the installation and maintenance of fixed telecom networks, while the mobile telecom services relate to implementation and maintenance services covering mobile telecom and data network systems and roll-outs of mobile networks. The Transport and Defense segment comprises services for homeland security and aviation and services for rail infrastructure and, to a lesser extent, services to small and medium sized enterprises customers. The company was founded in 2001 and is headquartered in Stockholm, Sweden.