İSTON conducts testing of construction materials and applications—such as concrete, steel, asphalt, and fill materials—used in infrastructure, superstructure, and transportation structures, as well as Building Earthquake Performance Analysis services. In addition to these tests, it also provides "Building Seismic Performance Analysis" services for structures. Accredited internationally by TURKAK, İSTON Laboratories operate in accordance with the TS EN ISO/IEC 17025 Standard. It provides services in four different locations: two on the Anatolian side and two on the European side of Istanbul, in its Building and Materials and Quality laboratories.