Deva Granit Marble foundation was established as a joint stock company in 2015. KORKMAZ brothers working under different companies in the beginning combined their powers and became a leader in the Natural Stone sector. It has a very fast growth by processing stones such as marble, granite, onix, traverten and composite quartz, which are located on 2.000 m2 closed and 10.000 m2 open workshop, Warehouse, manufacturing and application areas has made its name in Turkey and world markets.