The client is the joint venture iGA, which was established for the construction of the airport. The partnership comprises the companies Kalyon, Cengiz, Mapa and Limak, which operate in Turkey and globally across various sectors, including construction, energy, tourism, mining, and port and airport management. As a crucial safety measure for people, property and infrastructure, Istanbul airport is fully equipped with fischer FireStop passive fire protection solutions, which help to prevent the spread of fire, smoke and toxic gases in the event of a fire. Safety for use in Turkey is ensured by assessments according to European standards, such as the European Technical Assessment (ETA). The installation companies commissioned for the technical building equipment (MNG, EHA, Qubi, 3Gen, Redgon and many more) installed the easy-to-fit and highly effective products from the fischer range for passive fire protection in the terminal, tower and all other utility buildings at Istanbul Airport – all of which are constructed using reinforced concrete as a skeleton structure.