Ontan is founded as a general contracting and real estate development company which also provides construction management and design services to its clients who value the highest levels of quality and safety expertise.

Since founded in 2006 by Civil Engineers Onur Öktem and Taner Akçınar, Ontan has developed and completed remarkable residential, commercial and industrial projects.

In 2011 Civil Engineers Selçuk Şahbazlar and Hayri Dinkçi has joined the firm and the contracting group and the real estate development group has separated. Contracting Group has succeeded in both domestic and international projects.

Joint ventures in real estate projects in 2012 has strengthen the group. Ontan Group has also started its activities in tourism and operation sectors in the same year.