World leader in the construction and maintenance of transport infrastructure


The Colas Group operates in all lines of business related to the construction and maintenance of roads and other forms of transport infrastructure (air, rail, maritime), urban development and recreational facilities, through two operating units: Roads, (including civil engineering and building)...

Your talents at the heart of our projects: join us

Our jobs at Colas

Colas offers careers in each of its lines of business (Roads, Railways, Road Equipment, Waterproofing, Pipelines, Building & Civil Engineering), allowing people the opportunity to flourish and express their potential.

Responsible commitment

The cornerstones on which Colas’ responsible development policy are built are twofold: first, the Group’s businesses endeavor to satisfy essential needs and aspirations (social cohesion, climate change, housing and transport needs, improved living environments, etc.). Second, this activity can and must be performed responsibly.

Wattway, the Colas Solar Road

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After 5 years of research, the Colas Campus for Science and Techniques, in a partnership with the French National Solar Energy Institute, has developed the first ever photovoltaic road surfacing: Wattway. Colas is paving the way to tomorrow’s energy.

R&D at the heart of our businesses


The task of the R&D teams in the Colas Group is to meet the current and future needs of customers, users and those working in the field.

Colas on Stage, connecting the world with talent

Supported by Colas, with iTMoi, Akram Khan has created a work for 11 dancers, inspired by Igor Stravinsky’s masterpiece, the Rite of Spring.


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The Colas Group’s diversity and equal opportunity policy hinges on four main themes: social inclusion, disability, gender diversity and age management.

Colas in Hungary

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Renowned for their technical expertise and reliability, Colas subsidiaries in Hungary perform both large and small-scale projects including highways, roads, urban development, streets, main networks, etc.