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Improving people’s lives through connected, sustainable infrastructure

Transforming the performance of infrastructure

Our integrated services

We work with our customers in their business and investment planning to develop new solutions to meet changing needs, leveraging our deep customer insight, practical expertise and broad range of capabilities.

Our integrated services

Our value-adding consultancy and advisory services are rooted in project delivery experience and leverage our broad range of capabilities.

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Our integrated services

We engineer and integrate digital solutions into our projects to improve the performance of our infrastructure.

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Our integrated services

We optimise the performance of our customers’ existing infrastructure assets and operational practices by combining our deep customer insight and practical expertise, thereby increasing capacity, improving connectivity, minimising downtime and reducing operating costs.

Our integrated services

Our people deliver complex infrastructure projects in a sustainable, efficient and practical way by constantly innovating and working collaboratively.

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How we improve lives

Climate change and decarbonisation solutions

We're talking about...

Deep collaboration by our net zero pioneers is accelerating the UK's race to net zero

Meet Gareth, one of our extraordinary #NetZeroPioneers
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Meet Bhavika, one of our extraordinary #NetZeroPioneers
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Meet Rob, one of our extraordinary #NetZeroPioneers
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Meet Mikaela, one of our #NetZeroPioneers
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Meet Lee, one of our #NetZeroPioneers
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Meet Andrew, one of our #NetZeroPioneers
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Get to know us

Careers

We are looking for skilled, expert and motivated people who will help us meet national needs in transportation, energy, water and defence. As a vibrant, challenging and growing business we provide tremendous opportunities for everybody.

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Investors

We offer our clients leading edge solutions that are digitally optimised across the whole life cycle of their assets by integrating five core services that include future shaping strategic consultancy, consultancy and advisory, digital technology solutions, asset optimisation and complex programme delivery.

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Our culture

We are building a long-term sustainable business that creates more economic, environmental and social value through greater corporate responsibility. Costain cares about all stakeholders and responsibility is at the core of our business.

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Latest news

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Costain partners with Heathrow Airport to transform operations and performance
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Costain Completes Extension of its Bank Debt and Bonding Facilities
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Boost to the North East economy as multi-million pound A1 upgrade opens to traffic
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