Costain Group PLC

+44 (0)1628 842444

Company overview

Costain Group PLC is a leading provider of sustainable infrastructure solutions. Since 1865, the BSI Kitemark-certified company has been improving lives with sustainable, integrated infrastructure. Today, it provides a range of whole-life cycle services, spanning:

  • Consultancy and advisory.
  • Digital technology solutions.
  • Programme delivery.

Costain Group PLC employs 3,500 people across the UK, connecting clients with creative subject matter experts who can help them achieve their objectives. The company is committed to operating responsibly and sustainably, and works to generate social, economic, and environmental value for stakeholders.

In the rail industry, Costain Group PLC helps to improve and develop critical infrastructure – with a view to supporting economic growth and ensuring the railway can meet increasing demand.

Work in the rail industry

Population growth is putting pressure on the UK’s rail network. In response, the industry is working to deliver:

  • More electrification.
  • More high-speed rail.
  • The digital railway.

With its agile approach, industry-leading expertise, and innovative, sustainable solutions, Costain Group PLC is ideally placed to help the rail industry meet growing demand – all while ensuring that services remain safe, reliable, and affordable.

The Costain Group PLC rail team are:

  • Committed to safety.
  • Industry specialists.
  • Focussed on whole life cycle cost and sustainability.
  • Experienced in alliance working and delivering collaboratively.

Rail services


Established in partnership with industry-leaders Alstom and Babcock, ABC Electrification Limited is one of just three firms to be awarded a Network Rail National Electrification Programme (NEP) contract. Its team brings expertise and a collaborative approach to electrification delivery.


Track, signalling, and systems

Multi-disciplinary rail projects

London Gatwick Airport station

In November 2023, work by Costain Group PLC ensured that London Gatwick Airport’s upgraded station could enter into service. During this four-and-a half-year project, the infrastructure specialist delivered:

  • Planning and design stages.
  • Subsequent improvement works (including staff accommodation and a new concourse).

Behavioural science and safety change programme – Network Rail

Costain Group PLC helped to create a behavioural change management programme for Network Rail, supporting its goal to get “Everyone Home Safely Every Day.” This involved:

  • A listening exercise, during which 643 shared information about the safety challenges they faced each day.
  • 69 sessions, which enabled to team to capture a range of perspectives from senior leaders, frontline employees, and teams.
  • The development of a behavioural change programme, which has improved safety (and, in the case of one leader, an 80 per cent in team communication about internal incident management.)