Colas Rail Ltd

+44 (0)20 7593 5353

Company overview

Part of the global Colas Group, Colas Rail Ltd has a long history of developing safe, efficient, and innovative solutions for the rail industry. Guided by its strong ethics and core values, it is now working to overcome the challenges associated with today’s evolving rail environment – all while exceeding customer expectations and supporting its people.

An industry leader, Colas Rail Ltd specialises in rail infrastructure, rail services, urban rail, and light rail. Its knowledgeable team can support clients from design to construction, and throughout the asset lifecycle, prioritising safety and performance. With a wide range of services and construction/renewals expertise, the company has delivered some of the world’s most important rail projects – including High Speed 1 (section 1).


Rail infrastructure

Colas Rail Ltd is a leader in railway infrastructure, supporting the mainline, high-speed, light rail, and metro markets with services around design, engineering, project management, construction, and maintenance.

Specialising in complex infrastructure projects, its team develops efficient, safe solutions with both the client and passenger in mind.

Services include:

  • Track installation and renewal.
  • Electrification.
  • Signalling and telecoms.
  • Design and survey.

Rail services

Colas Rail Ltd provides a range of on track plant and freight services, working collaboratively, safely, and flexibly. Its fully trained team and stage-of-the-art facilities mean it can keep its fleet operational all year round.

Services and solutions include:

  • On track plant: operating and maintaining the largest, most cutting-edge fleet in the country.
  • Tampers: guided by computers and operated by a highly-trained team.
  • On track machines: the Kirow 1200, a heavy-duty rail-based crane.
  • Rail freight: A renowned national freight operator, Colas Rail Ltd has been delivering its growing portfolio of freight services since 2007.

Urban rail

Drawing on 25 years of experience, Colas Rail Ltd designs, delivers, and maintains light rail systems around the world. Its approach involves:

  • Flexible service.
  • Partnership working.
  • Early contractor involvement, leading to optimal engineering and valued-based solutions.

The company has supported a range of projects, and is currently principal contractor of the Midland Metro Alliance.

High speed rail

Colas Rail Ltd has been supporting international high-speed rail projects (including section 1 of High Speed 1) for over 35 years, honing its systems and methodology. Services include:

  • Project management.
  • Coordination.
  • Installation.
  • Testing/commissioning.
  • Maintenance.

Safety at Colas Rail Ltd

Colas Rail Ltd ensures that “Everyone is free to be Safe”, encouraging colleagues to:

  • Speak up if conditions are unsafe.
  • Halt work so that they can reassess the situation.
  • Challenge one another if something doesn’t feel right.

This safety culture extends to the company’s supply chain, and is supported by its workforce safety tool.


From community outreach work to the latest projects, learn more about what’s happening at Colas Rail Ltd.