Together we thrive
Our commitment is to make Costain a safe, great and inclusive place to work. We are creating a sustainable future with a positive, lasting legacy for our people and the communities we serve as we deliver a more prosperous, resilient and decarbonised UK. Being a responsible business is not just about delivering a sustainable product or service, it’s also about considering the social impact of how we operate.
Social responsibility is an integral part of our identity and how we do business. By keeping the communities we serve front and centre at all times, we’re setting a standard for how businesses and our supply chain can drive positive social change.
Our commitment extends beyond conventional business metrics, instead encompassing customer and community engagement, wellbeing, volunteering, fundraising, and a robust inclusion strategy. These initiatives help us contribute to a better society, with a goal of improving a million lives by 2030.

Equity, diversity and inclusion
Costain is an inclusive and family friendly employer: we are committed to tackling systemic barriers to create a psychologically safe workplace, where everyone has equal opportunities to reach their full potential.
Find out more about EDI at Costain
Community and social value
We’re committed to driving positive social impact through long-term and sustainable social outcomes such as job creation and protecting the environment.
We actively engage voluntary, community and social enterprises, as well as small businesses, in our supply chain.
Find out more in our Social Value Plan.
Social value at Costain