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. Road construction makes up 80% of the group's activities. Additional related activities include road signage, construction, various civil engineering activities including pipe-laying, and rail track construction and maintenance. Colas Ltd is a UK subsidiary. More information...
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