Tekfen Holding Anonim Sirketi, together with its subsidiaries, engages in engineering and contracting, chemical, agriculture, services, and investment businesses in Turkey, CIS countries, the Middle Eastern countries, and internationally. It operates through three segments: Engineering and Contracting, Agricultural Industry, and Investment. The company engages in the construction of petrochemical facilities, pipelines, land and marine terminals, offshore platforms, tank farms, oil refineries, pumping stations, and power plants, as well as highways, subways, bridges, tunnels, electrical and instrumentation projects, infrastructure projects, production facilities, commercial and technical building complexes, and sports complexes. It offers mineral, special water soluble, and organic/organomineral fertilizers; solid and liquid organic fertilizers from wastes; and generates biogas and electricity from biogas. In addition, the company produces and sells plant tissue, banana sapling cultivation, high quality potato seed, and certified wheat germ, as well as exports cherry, apricot, pomegranate, plum, and figs. Further, it engages in the terminal management; ship agency business; free zone operations; insurance; development, leasing, operation, and management of properties; facility management services, including management of spaces, such as parking facilities, conference halls, restaurants, and fitness centers; management services; trading of fertilizers; manufacture of fruits; and trading activities. The company was founded in 1956 and is based in Istanbul, Turkey.