She will take up the role in December alongside former United Utilities Group CEO Steve Mogford who is also joining the board as two existing non-executive directors move on.

The pair will be members of the Company’s Audit, Nomination and Remuneration Committees.

Kate Rock, Chair, said: “The Board is delighted to welcome Steve and Amanda to Costain.

“Both bring a wealth of experience in key markets, including energy, water, highways, and rail.

“They have driven improved profitability and increased market share, and I look forward to working with them to support the growth we expect in Costain’s operating profit and margins.”

They take the place of Jacqueline de Rojas and Neil Crockett, who will step-down at the end of this month.