As a global leader in rail infrastructure, Colas Rail brings more than four decades of experience designing, building, integrating, and maintaining complex rail systems worldwide. A subsidiary of the Colas Group, Colas Rail supports cities and countries as they reimagine mobility through safe, efficient, and sustainable public transportation solutions.

Colas Rail specializes in the management and delivery of large, multi-discipline rail construction programs, providing end-to-end services across the full infrastructure lifecycle. From early design support and constructability input through construction, systems integration, testing, commissioning, operations, and long-term maintenance, Colas Rail applies a holistic, lifecycle-driven approach that ensures performance, reliability, and durability of rail assets.

With approximately 6,000 employees operating through 20 entities worldwide, Colas Rail integrates twelve complementary areas of expertise that enable seamless coordination of complex interfaces on major rail programs. The company is internationally recognized as a leader in high-speed rail track systems, electrification and overhead contact systems, railway signaling and communications, power supply and substations, civil and tunnel works, electro-mechanical safety systems, and low-voltage and telecommunications networks.

Beyond construction, Colas Rail brings deep operational and maintenance insight to every project. Its capabilities extend to infrastructure and asset management, rolling stock and works-train maintenance, heavy rail machinery operations, railway safety certification, and specialized workforce training through its accredited CampusFER training organization. This full lifecycle understanding drives smarter delivery decisions, improves maintainability, and reduces long-term asset risk for owners and operators.

Colas Rail has over 40 years of high-speed rail delivery experience, having designed, built, installed, tested, commissioned, and maintained high-speed infrastructure worldwide. Its portfolio includes more than 20 major high-speed rail contracts, demonstrating proven performance on some of the world’s most demanding programs.

Representative High-Speed Rail Projects

The following projects highlight Colas Rail’s experience delivering and maintaining high-speed rail systems operating at speeds of up to 350 km/h:

• Al Boraq High-Speed Line – Morocco | 320–350 km/h
• LGV Bretagne–Pays de la Loire – France | 320–350 km/h
• LGV Sud Europe Atlantique – France | 320–350 km/h
• Frankfurt – Cologne High-Speed Line – Germany | 300 km/h
• High Speed 1 (HS1) – United Kingdom