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

Our purpose

Our purpose is to improve people’s lives by helping to: connect and keep the nation moving: keep water clean and flowing: power communities sustainably and keep people safe.

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 values

Everyone at Costain is committed to being:

  • Customer focused
  • Open and honest
  • Safe and environmentally aware
  • Team players
  • Accountable
  • Innovative – improving continuously and therefore the...
  • Natural choice.




Investment case

What we do