50
years of engineering experience
We create global transfer hubs through large scale, integrated airport projects.
Details
We carry life into the future with engineering solutions that prioritize a continuous water supply and environmental balance.
Details
We deliver infrastructure projects that integrate land and sea and support the security of energy supply.
Details
We build strategic transport infrastructure connecting continents, cities and economies.
Details
We develop modern living spaces that combine architectural quality with design, functionality and sustainability.
Details
We strengthen the infrastructure of global trade with high capacity, durable port structures.
Details
We transform urban transport through high capacity, fully integrated digital rail systems.
Details
01
Airport Projects
02
Water and Environmental Projects
03
Oil and Natural Gas Projects
04
Transport Infrastructure Projects
05
Building Projects
06
Port Projects
07
Rail Systems Projects
OUR FEATURED PROJECTS
Istanbul Airport
Detay
Completed in Record Time
Türkiye's largest infrastructure investment was completed in 42 months
OUR FEATURED PROJECTS
Northern Marmara Motorway
Detay
The Mega Project Connecting Marmara
A strategic motorway extending over 400 km and providing an uninterrupted connection between Asia and Europe.
OUR FEATURED PROJECTS
Gayrettepe to İGA Istanbul Airport Metro
Detay
Seamless Transport Between the City and Airport
Access from central Istanbul to the airport in minutes via a 38 km double track metro line.
OUR FEATURED PROJECTS
TRNC Subsea Water Transmission Pipeline
Detay
A World First
The first project to convey water from Türkiye to the TRNC through a suspended subsea system.
OUR FEATURED PROJECTS
Istanbul International Financial Center, Ziraat Towers
Detay
A Leader in High Rise Building Engineering
The vast 431,000 m² complex, comprising two towers of 40 and 46 storeys, was built using advanced engineering solutions.
OUR FEATURED PROJECTS
North Marmara Underground Natural Gas Storage Facility
Detay
Europe's Largest Subsea Storage Facility
Strengthening Türkiye's security of energy supply with a capacity of 4.6 billion m³.
OUR FEATURED PROJECTS
TANAP Natural Gas Pipeline, Lot 4
Detay
KALYON İNŞAAT IN NUMBERS
We create lasting value for Türkiye and the world.
12
countries of operation
10000+
people employed
741,8
km of motorway
1344
km of rail systems
249
km of metro lines
1200
km of water pipelines
1000
km of natural gas pipelines
16000
homes
2000
bed capacity in hospitals and healthcare facilities
10
billion m³/year floating LNG regasification facility
OUR PROJECTS
We build sustainable projects in the air, on land and at sea.
All Our Projects
Airport Projects
Rail Systems Projects
Oil and Natural Gas Projects
Transport Infrastructure Projects
International Projects
Energy Projects
Water and Environmental Projects
Port Projects
Building Projects
Airport Projects
We create global transport hubs through integrated airport projects of record breaking scale.
Airport Projects
Our Fields of Activity
We deliver our projects through technical excellence, sustainable planning and strong financial management.
Our Sectors
Our Expertise
Türkiye's First Luxury Designer Outlet Florentia Village Officially Opens
Florentia Village, Türkiye's first luxury designer outlet of international standard, officially opened in the presence of Minister of Transport and Infrastructure Abdulkadir Uraloğlu and Minister of Youth and Sports Osman Aşkın Bak.
