Sunko Proje Inc.

Sunko Proje is an engineering design and consultancy firm headquartered in Ankara, Türkiye, with a presence in more than 10 countries. We deliver multidisciplinary engineering services for major infrastructure and building projects, combining technical expertise with a practical understanding of constructability, cost and long-term performance.

Bridge design is at the core of our expertise. We rank among the world’s top 10 bridge design firms, with capabilities spanning long-span cable-stayed bridges, complex structural systems and advanced engineering analysis. Our flagship projects include the Pertek Cable-Stayed Bridge, designed with a main span of approximately 1,100 metres to connect Elazığ and Tunceli across the Keban Reservoir.

Our expertise also encompasses highways, railways, tunnels, ports, marine structures and buildings. By integrating structural, geotechnical, geological and transportation engineering, we develop coordinated solutions for demanding sites and complex project requirements.

We support public authorities, contractors and private investors from feasibility studies and conceptual design through detailed engineering and independent design verification.

At Sunko Proje, we turn ambitious infrastructure visions into safe, efficient and buildable engineering solutions.