2890
+
Infrastructure Network
km of Roads & Railways Designed
Engineering Excellence Since 1999
Sunko Proje
Sunko Proje is a leading engineering and design company headquartered in Ankara, Turkey. Founded in 1999, we have remained at the forefront of the engineering industry, providing innovative and multidisciplinary solutions for a wide range of infrastructure projects.
International Project Experience
Engineering Beyond Borders
From our headquarters in Ankara to projects across Africa, the Middle East, Central Asia and Europe, Sunko Proje brings multidisciplinary engineering expertise to diverse geographies, project conditions and infrastructure challenges.
10+
Countries
4
Regions
2
Liaison Offices
🇹🇷
Türkiye
Headquarters & Primary Market
Türkiye’de ulaşım, altyapı, köprü, tünel ve çok disiplinli
mühendislik projelerinde tasarım ve danışmanlık hizmetleri sunuyoruz.
Sunko Proje delivers multidisciplinary design and consultancy
services in Türkiye across transportation, bridge, tunnel
and infrastructure engineering.
Experience in Numbers
Sunko in Numbers
Decades of multidisciplinary engineering experience translated into measurable infrastructure design capability.
1192
+
Structural Engineering
Bridges Designed
10
+
International Presence
Countries with Project Experience
27
Since 1999
Years of Engineering Experience
Integrated Engineering Capability
From Ground Investigation to Landmark Infrastructure
Sunko Proje combines multidisciplinary design, engineering analysis, field investigations and technical consultancy within a single integrated structure. This approach enables complex infrastructure projects to be evaluated as complete engineering systems rather than isolated disciplines.
Multidisciplinary Design
Roads, railways, bridges, tunnels, coastal structures, geotechnics and architecture.
Complex Infrastructure
Engineering solutions for technically demanding transportation and infrastructure projects.
Public & Private Sector
Experience serving public authorities, municipalities and major contractors.
International Delivery
Engineering and consultancy experience across Europe, Africa, the Middle East and Central Asia.
Multidisciplinary Engineering
Our Expertise
At Sunko Proje, our cornerstone is a multidisciplinary engineering approach combined with cutting-edge technology.
Highway Design
Railway Design
Bridge Engineering
Tunnel Design
Coastal and Port Engineering
Geological and Geotechnical Engineering
Soil Investigations
Architectural Engineering
Consulting and Technical Supervision
Signature Engineering Project
Pertek Cable-Stayed Bridge
Sunko Proje is the lead designer of the Pertek Cable-Stayed Bridge commissioned by Türkiye’s General Directorate of Highways. The approved scheme demonstrates Sunko Proje’s cable-stayed bridge engineering capability at the kilometre-span scale and represents one of the company’s most significant landmark projects.
1,080 m
Main Span
1,840 m
Cable-Stayed Bridge Length
≈280 m
Pylon Height
500 m+
Stay Cable Length
Experience & Milestones
Achievements and Milestones
Over the years, Sunko Proje has successfully completed numerous prestigious projects, cementing our reputation as one of Turkey’s leading engineering companies.
01
Bridge Engineering
We have designed over 1,000 bridges, including the Haydarpaşa High-Speed Train Bridge in Istanbul and the Antalya Mevlana Bridge.
02
Highway Design
Our portfolio includes the design of more than 2,000 kilometers of roads in Turkey and international markets.
03
Tunnel Design
We are working on the Şırnak-Van Road Project, featuring 12 tunnels with a total length of approximately 15 kilometers.
04
Railway Design
We have completed various railway design assignments for TCDD, including high-profile infrastructure projects.
05
Cable-Stayed Bridge Design
In 2017, we designed a signature cable-stayed bridge with a maximum span of 238 meters in Artvin, Turkey.
06
International Cable-Stayed Bridge Engineering
Consultancy and bridge engineering services have been provided in Ghana, Guinea and Bahrain.
07
Pertek Cable-Stayed Bridge
The Pertek project extends Sunko Proje’s cable-stayed bridge engineering capability to the 1,080-metre main-span scale.
08
Coastal Engineering
Coastal and marine engineering projects have been completed for public authorities, municipalities and the Turkish Navy.
09
African Road Design Projects
Our international road portfolio includes strategic road design projects totaling approximately 650 kilometers in Sierra Leone.
Institutional Experience
Public Authorities & Major Infrastructure Clients
Sunko Proje’s project experience includes national transportation authorities, public institutions, municipalities and major infrastructure contractors.
Selected Institutional Experience
General Directorate of Highways
TCDD
Ministry of Transportation
Turkish Navy
Why Sunko Proje
Engineering Capability Built on Experience
Proven Engineering Experience
Decades of infrastructure design experience across multiple engineering disciplines.
Innovative Solutions
Advanced engineering methods and technology integrated into design and consultancy.
Global Reach
Engineering services and consultancy experience across multiple international markets.
Complex Project Capability
Experience addressing demanding engineering challenges at major infrastructure scale.
Our Mission
As Sunko Proje, our mission is to implement quality, safe, and sustainable infrastructure projects that meet the needs of our clients and society by providing innovative engineering and consultancy solutions. We aim to create economic and environmental value through our projects while maintaining the highest level of customer satisfaction and enhancing the quality of life for people.
Our Vision
The vision of Sunko Proje is to achieve and maintain a leading position in the engineering and consultancy sector both nationally and internationally. By embracing innovation, sustainability and excellence, we aim to provide groundbreaking engineering solutions and create long-term value through our projects.
At Sunko Proje, we are proud of our history, our achievements and our vision for the future. We continue to build a legacy of excellence in engineering and design.
For more information about our services and projects, please visit Sunko Proje.