Network Rail

Octavius Infrastructure

This company provides civil engineering and construction services for rail and highways networks to public bodies and private sector organisations.

Telent

This company provides telecommunications and digital infrastructure systems to emergency services, transport networks, and public sector organisations.

Angel Trains

This company leases and manages passenger rolling stock for train operating companies across the United Kingdom rail network.

NEXFIBRE

This company builds and operates full-fibre broadband infrastructure to provide wholesale network access for internet service providers across the United Kingdom.

Amey

This company provides engineering, consultancy, and infrastructure support services for public and private sector clients in transport, utilities, and complex facilities.

BAM Nuttall Limited

This civil engineering company provides infrastructure design, construction, and maintenance services for public and private sector clients in transport, energy, and water industries.

National Gas

This company operates gas transmission infrastructure and metering services for power stations, major industries, and millions of homes and businesses across Great Britain.

InspectRail

This company develops onboard monitoring systems and software for railway infrastructure maintenance used by train operators to track geometry and asset condition.