Suppliers
Costain demands the same high standards and values from its supply chain as it does from its own organisation.
Working with Costain
Our trade contractors, material suppliers and service providers are integral to our success and customer satisfaction in delivering complex projects and schemes that meet national needs.
Costain payment process
To be paid promptly to terms, suppliers should be aware of the Costain payments process.
Become a Costain supplier
We want to work with responsible suppliers who are capable of delivering our business needs.