Corporate

Koray Holding Management

Orhun Kartal
Chairman of the Board of Directors
Orhun Kartal was born in 1969 in Manisa and graduated from the Ankara Science High School in 1986. He completed his Bachelor’s degree at the Department of Civil Engineering, Boğaziçi University in 1991.

He worked as an executive for over 25 years in the field of construction, contracting, real estate and energy, and has entrepreneurship experience. Orhun Kartal worked as an executive for the development and delivery of numerous contracting and construction projects in more than 7 countries in 3 continents, leading more than 6000 employees. While focusing on the construction, energy and agriculture sectors in business, he realized major projects in the field of renewable energy, particularly solar energy. He also continued his investments in agricultural production and real estate.

Orhun Kartal has worked with a vision of delivering the top quality and best results in a limited time with all the employees he led. He is one of the founders of the Construction Club at the Boğaziçi University and continued supporting this club after his academic life as well, granting scholarships to many students and making financial contribution to repair projects for the residences and student dormitories damaged in the earthquake.

He is married with 3 children. He plays golf and tennis.
İlker Kayhan
General Manager
He graduated from the Department of Mechanical Engineering, Boğaziçi University. He got his MSc degree at the Department of Engineering and Technology Management, Boğaziçi University, and graduated from the Paris-Singapore INSEAD MBA program. He has 15 years’ experience in company mergers & acquisitions, venture fund and business development. Since 2015, he has managed all stages of the 120 MW+ energy project portfolio including development/purchase, management, commissioning and financing.
Tolga Günönü
Sunsis Board Member
Updated.