Longstanding core business 

The Group’s main business activity involves the construction and maintenance of road infrastructure, in the broadest sense. The Roads business is very diverse, covering a wide range of jobs and skill sets, including road safety and signage, civil engineering and construction (construction and rehabilitation, deconstruction). 

A full-scale business 

The Railway business, operated by Colas Rail and its subsidiaries, includes the design and engineering of large complex railway projects, and the construction, renewal and maintenance of railway networks. 

Colas expertise in large-scale projects

Backed by its renowned global expertise and its strong local roots, Colas supports its customers in the design and roll out of major infrastructure projects (roads, airports, railways, mining), urban development and public transport on five continents.