Value proposition

Improving people's lives through connected, sustainable infrastructure

Costain helps to improve people’s lives by creating connected, sustainable infrastructure that enables people and the planet thrive. We shape, create and deliver pioneering solutions that transform the performance of the infrastructure ecosystem across the UK’s energy, water, transportation and defence markets.

We are organised around our customers anticipating and solving their challenges and helping to improve performance. By bringing together our unique mix of construction, consulting and digital experts we engineer and deliver sustainable, efficient and practical solutions.

Our ambition is to become a net zero business by 2035, while enhancing biodiversity and natural capital, and we have plans in place to deliver this. We are committed to procure responsibly and to be an inclusive and accessible business for all, enabling us to be our best while focusing on the outcomes that we deliver for people and planet.

At Costain, we have a vibrant, challenging and growing business – an environment that provides tremendous opportunities for everybody. We're looking for curious, collaborative and courageous people who'll help transform the performance of the infrastructure ecosystem across the UK. For more information about our careers go to www.costain.com/careers

Today, we employ around 3,500 people and have been named in the Times Top 50 Employers for Gender Equality 2023.


Engineering and technology led solutions, Integrated services across the asset lifecycle, Advisory and concept development, Specialist design, Programme management, Complex project delivery, Technology integration, and Asset optimisation and support