Gek Terna. 

GEK TERNA Holdings, Real Estate, Construction S.A., a Greek firm based in Athens and founded in 1960 (originally known as Ermis Real Estate Constructions Enterprises S.A.), oversees a diverse array of operations through its various subsidiaries. The company is a prominent entity in several key sectors, including construction, property development, mining, electricity production, and infrastructure concessions. Its construction division undertakes numerous projects for both public and private clients. This encompasses the development of motorways, railway networks, diverse buildings like hospitals and museums, industrial complexes, hydroelectric schemes, dams, and power stations. Furthermore, GEK TERNA excels in concession projects, where it finances, manages, and commercially operates significant infrastructure assets such as motorways and parking facilities. In the energy sector, the group is a substantial producer, generating 895.3 MW of electricity and actively trading natural gas. Its portfolio includes the development and management of renewable energy sources, notably wind farms, hydroelectric power plants, waste treatment and biogas production facilities, and photovoltaic parks, alongside pumped storage and broader energy infrastructure initiatives. The company also operates thermal power plants in Viotia, Greece, with a combined installed capacity of 582 MW. Beyond infrastructure and energy, GEK TERNA is deeply involved in real estate. This includes acquiring, developing, and monetizing a range of properties such as business centers, industrial parks, entertainment venues, residential developments, and hotels. Its mining activities encompass both the production of quarry products and the exploitation of magnesite quarries. The company's operational reach extends significantly beyond Greece, with a presence throughout the Balkans, the Middle East, Eastern Europe, and the United States, as well as broader international engagement.