Alarko Holding A.S. engages in the contracting, construction, land development, industry, trade, tourism, and energy businesses in Turkey and internationally. It designs, develops, and builds projects, such as airports, rail systems, roads, infrastructure systems, power plants, industrial facilities, business centers, hotels, hospitals, etc. The company also engages in the power generation, and electricity distribution and retail sale in Turkey. In addition, it manufactures air handling units and roof top units under the CARRIER brand; wall-type condensing boilers, condensing combi boilers, and panel radiators, as well as related auxiliary equipment, such as hot water storage tanks, expansion tanks, unit heaters, plate exchangers, and radiator valves under the Alarko brand; and submersible pumps and motors, circulation pumps, and water booster pumps under the Alarko brand. Further, it operates hotels, sports centers, spa centers, and movie theaters; publishes Hillsider magazine; constructs, manages, and operates commercial and residential buildings; and designs and offers satellite towns. Additionally, the company offers marketing of industrial products and after sales services; and tools related to real estates. It also engages in supply of water and cleaning of lake projects; and subway construction, copper facility, and highway construction projects, as well as construction, montage, and installation works. Alarko Holding A.S. was founded in 1954 and is headquartered in Istanbul, Turkey.