Akfen Holding Anonim Sirketi, through its subsidiaries, engages in airport management and operations, construction, seaport management and operations, marine transportation, water distribution and wastewater services, energy, and real estate businesses in Turkey. It is involved in the construction of superstructures, airport terminals plus associated infrastructure, natural gas pipelines/distribution systems, hospitals, schools, industrial plants, hydroelectric/thermal energy projects, water distribution, environmental protection, sewage systems, and waste treatment facilities. The company also operates renewable energy power plants; and provides maritime and terminal services, as well as passenger and vehicle transportation services through a fleet of 54 sea vessels, including 24 sea buses, 22 conventional ferries, 7 fast ferries, and 1 service ships. In addition, it operates combined cycle natural gas power plants. The company was founded in 1976 and is based in Ankara, Turkey. Akfen Holding Anonim Sirketi is a subsidiary of Akfen Altyapi Holding A.S.