Costain has reported a 9.3% jump in adjusted operating profit to £47.1m in its latest annual results.

The construction and engineering company also revealed it closed 2025 with a record £7bn forward order book, a £1.6bn improvement on its position at the end of 2024.

Costain, publishing its full-year trading results covering the 2025 calendar year, reported a 16.4% decline in revenue for the period, however, which fell to £1.05bn due to a reduction in its transportation business.

The FTSE 250 group said it still closed the year with a strong balance sheet, with net cash of £189.3m up on £158.5m at the end of 2024.

Costain also suggested it has substantial growth opportunities across all its target markets outlined in the Government’s 10-year infrastructure strategy, including regulatory commitments in water, energy and aviation.

“The group is strongly positioned in structurally growing markets where significant long-term investment is being made to meet critical national needs, and where we work in long-term collaborative partnerships with an increasing number of customers,” CEO, Alex Vaughan, commented.

“Our forward work position has grown by 30% to a record £7bn, almost seven times FY25 revenue, giving good visibility of future work and, combined with our strong balance sheet, underpins our confidence in delivering revenue and operating profit growth in FY26 and a step change in performance in FY27 and beyond.”

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