During the late 2000s and early 2010s, Colas Rail continued to pick up more freight services, becoming involved in the haulage of coal and steel amongst other traffics.

Other projects included major improvement works at London Waterloo station and the West Midlands Metro, as well as the construction of the Contournement Nîmes – Montpellier high speed line in France.

Also during 2007, Colas purchased three Class 47 diesel locomotives from the freight operator England Wales Scotland (EWS); all three were overhauled at Eastleigh Works ahead of commencing operations in September 2007 on railhead treatment trains in South West England on behalf of the national rail infrastructure owner Network Rail.

[6][7][8] During late 2008, Colas Rail commenced operating steel trains from Immingham to Washwood Heath, hauled by Class 56 locomotives hired from Hanson Traction.

[9] In mid-2009, on behalf of a separate customer, it commenced a further steel flow from Burton upon Trent to Dollands Moor, which was hauling by the company's own Class 47s.

[15][16] During December 2011, Colas launched a new service on behalf of Kronospan, moving timber from Gloucester to Newton Abbot, typically hauled by its Class 66 fleet.

[25] In November 2013, Colas placed an order for ten Class 70 diesel locomotives with the American railway manufacturer GE Transportation.

[1] In December 2017, Colas Rail sold its three Class 47 locomotives to GB Railfreight, as they had been deemed to be no longer useful to its core operations.

[1] Colas Rail was also one of the companies involved in delivering the Contournement Nîmes – Montpellier French high speed line.

[39] During August 2021, Colas announced the sale of its Pullman Rail engineering operation to the government-owned not-for-profit organisation Transport for Wales.