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Rail freight

Solidly established on the French market and in the UK through its subsidiary Colas Rail Ltd, Colas Rail is now a major reference in transporting merchandise and products (aggregates, cereals, oil, vehicles, combi, minerals).

Railway civil engineering

Colas Rail, through its RTS agency, performs specific work in tunnels, including reinforcement, gauging and load clearance, traditional blasting and other specific procedures.

Maintenance of railway rolling stock

Colas Rail has developed its rolling stock maintenance business to meet its own requirements, but also those of other companies in the sector (railway companies, track works companies, builders, etc.).

Warnings and railway safety

Warnings and railway safety group all the skills linked to the safety of works on the network, in both closed and operating lines. It also provides training for railways companies, and is approved by EPSF and by the standards ISO 9001, and DATADOCK.

In addition to these activities, Colas Rail has set up a Railway Safety Department, whose remit is to ensure that safety operators, both internally and externally, have the skills required to carry out their job, and provides them with the associated technical documents.


44, rue Jean Mermoz
78600 Maisons-Laffitte
Tel.: 00 33-1 34 93 83 00