We use functional cookies for a number of reasons, such as keeping the Costain website reliable and secure and to analyse how our site is being used.
Will you accept our use of non-essential cookies?

Yes No Privacy Notice

About us

Our purpose is to improve people’s lives by creating connected, sustainable infrastructure that enables people and the planet to thrive.

Our story

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

Costain is one of the first to achieve the BSI Kitemark for innovation


We achieved a Silver accreditation in the 2021 Inclusive Employers Standard

Costain at a glance

Key facts

Listed on the UK stock exchange and recognised as one of the UK’s leading sustainable infrastructure solutions companies


Founded in Liverpool


Employees across the UK

Key facts

Broad range of innovative services across the whole lifecycle of our customers' assets


Adjusted Group revenue for year end 31 December 2022

Costain at a glance

Meet the experts