Headquartered in Athens, Greece, Ellaktor S.A. is a diversified conglomerate with a global reach, conducting operations in Greece, various European nations, Gulf countries, the Americas, and Australia. The company's activities are structured across five key segments: Construction, Concessions, Renewable Energy Sources (RES), Environment, and Real Estate Development. Through its extensive construction division, Ellaktor undertakes a wide array of infrastructure and building projects. This includes large-scale works such as bridges, motorways, metro systems, biological treatment facilities, natural gas pipelines, refineries, dams, port developments, energy production stations, and electromechanical installations. The company also constructs diverse buildings, from logistics, office, residential, industrial, and educational properties to shopping centers, casinos, tourist resorts, hotels, cultural venues, hospitals, airports, and sports complexes. In the environmental sector, Ellaktor specializes in waste management and energy generation, encompassing the design, construction, and operation of waste treatment plants, as well as the production of alternative fuels and biomass utilization. Its renewable energy ventures involve the development, construction, and operation of wind farms. The real estate division focuses on developing and managing properties like retail parks, entertainment centers, residential complexes, exhibition spaces, offices, and mixed-use buildings, while also offering advisory services to external clients. The company was renamed Ellaktor S.A. in 2008, having previously operated as ELLINIKI TECHNODOMIKI TEB SA.