 Kista is the largest Information and Communications Technology (ICT) cluster in Europe, and the world's second largest cluster after Silicon Valley in California.It is the largest corporate area in Sweden, important to the national economy due to the presence of, among others, Ericsson Group, the largest corporation in Sweden.Kista Science City is the location where a large portion of the research and development of the world's 4G LTE mobile telephony infrastructure is being developed, a European ETSI standard used worldwide and Kista Science City has been the largest such cluster in Europe for decades.