Costain Returns to FTSE 250 After More Than 20 Years

Costain Group has rejoined the FTSE 250 index for the first time in more than two decades, marking a significant milestone in the company’s recent turnaround.

Three years ago, Costain’s shares were trading at below 50p. Today, they are approaching £2, reflecting sustained financial improvement and renewed investor confidence. The rise in market value has secured the engineering and construction group’s return to the FTSE 250, which ranks the 250 largest publicly listed companies in the UK by market capitalisation.

The milestone follows a period of strengthened financial performance, including increased profitability, positive cash generation and continued success in securing work across the company’s targeted growth markets.

Chief executive Alex Vaughan said the achievement was a testament to the company’s people and long-term strategy.

“I am extremely proud of the whole Costain team and the role they have played in achieving Costain's return to the FTSE 250,” he said.

“This significant milestone follows what has been a sustained period of strong financial performance for the business, with increased profitability, positive cash generation and continued momentum in securing high-quality work across our chosen growth markets.

“Our performance is testament to the success of our strategy and the commitment and attitude of our people. We look forward to continuing our commitment to create further value for all our stakeholders.”

Costain’s return to the mid-cap index signals a recovery in market confidence after years of restructuring and repositioning, with the group now focused on delivering infrastructure solutions across energy, water, transportation and defence sectors.