Elia System Operator develops, operates and maintains very-high-voltage (380 kV, 220 kV and 150 kV) and high-voltage (70 kV, 36 kV and 30 kV) networks, providing its customers with consultancy and engineering services. Whether in Belgium, Germany or elsewhere in Europe or the U.S., Co. ensures that electricity flows reliably from energy producers to distributors and large corporate customers. Co.'s main activities include transmission operator, system operator and market facilitator, developing and maintaining grid infrastructure, connecting electrical installations to grids, providing transparent access to grids, while taking initiatives to improve electricity market operations.

Gecina is a rental real estate company. Co.'s purpose is to operate individual rental properties or group of properties located mainly in France. Co.'s properties include commercial assets (offices and retail outlets), residential assets, logistics assets, hotels and healthcare facilities. Co. is organized around two main sectors and one ancillary segment: Economic sector comprising the commercial segment (offices and retail outlets), the portfolio of logistics properties and of hotel buildings; Demographic sector comprising traditional residential units (housing units property holding), portfolio of students residences and of healthcare facilities; Ancilary segment of real estate services.