Ericsson, one of the largest Swedish companies, is a leading provider of telecommunication and data communication systems, and related services covering a range of technologies, including especially mobile networks. Directly and through subsidiaries, it also has a major role in mobile devices and cable TV and IPTV systems.Founded in 1876 as a telegraph equipment repair shop by Lars Magnus Ericsson, it was incorporated on August 18, 1918. Headquartered in Kista, Stockholm Municipality, since 2003, Ericsson is considered part of the so-called "Wireless Valley".