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Our purpose

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

Brand 2017

Through our smart contracting and consultancy solutions we help our clients across the UK’s transportation, water, energy and defence sectors to improve their business performance by enabling their infrastructure programmes to be safer, better, greener, faster and more efficient.

We operate through two divisions: natural resources and transportation. Within the natural resources division we serve our water, energy and defence sectors and within the transportation division, we serve the rail, highways and aviation/ borders sectors. Our culture and values underpin everything we do.

Our strategy is to focus on blue-chip clients whose major spending plans are underpinned by strategic national needs, regulatory commitments, legislation or essential performance requirements.

Clear set of priorities

We are committed to meeting our clients' needs. Our culture and values underpin everything we do.

As a result, our five key priorities are:

  • Achieve sustainable growth in profit
  • Deliver value and innovation for our clients
  • Broaden our integrated service delivery
  • Operate responsibly and safely
  • Attract and develop new skills.

Our core values and behaviours

Costain values and behaviours


Investment case

What we do