Who we are

Our experts deliver innovative, efficient and value-driven solutions for customers in energy, water and transportation.

Our story

We’ve been improving the lives of people since 1865.

Did you know

Costain was named Contractor of the Decade by New Civil Engineer


Costain is one of the nation's Top 100 'Most Admired' companies.

Our strategy

Costain at a glance

Key facts

Listed on the UK stock exchange and recognised as one of the UK’s leading engineering solutions providers

Key facts

Integrated service offer across six sectors


Innovation in action

Current projects

Government pipeline and storage system

Heysham to M6 link