Elia System Operator SA provides electric power transmission services. It operates its business through the following segments: Elia Transmission and 50Hertz Transmission. The Elia Transmission segment comprises Elia System Operator and the companies of which activities are directly linked to the role of Belgian transmission system operator. The 50Hertz Transmission segment comprises Eurogrid International SCRL and companies of which activities are directly linked to the role of transmission system operator. The company was founded on December 20, 2001 and is headquartered in Brussels, Belgium.