Colas Group is a major French civil engineering firm specialising in road construction and rail track construction through its Colas Rail subsidiary. Since the 1990s, the group has incorporated the Screg and Sacer road construction firms.
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Colas is leading the way towards a more sustainable world! ... Since it was founded, Colas has been using its innovative spirit to build infrastructures that meet ...
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We are a global leader in the construction and maintenance of transport infrastructure, opening the way to tomorrow's innovative, sustainable mobility.