Energy services and engineering specialist Dalkia has delivered a sharp financial recovery after a subdued prior year, with growth in nuclear and low-carbon projects underpinning a significant rebound in profitability.
The UK arm of the EDF-backed contractor increased turnover by 8% to £657m in 2025, while pre-tax profit rose dramatically to £8.2m from just £0.3m the previous year. Underlying performance also improved strongly, with EBITDA before exceptional items more than doubling to £18m.
The improved results reflect a strategic pivot towards nuclear, healthcare and decarbonisation work, sectors that continue to benefit from sustained investment and long-term policy support. This shift has helped drive a 17% increase in the company’s order book to £1.3bn, providing a solid platform for continued growth.
Group chief executive Gautier Jacob said the business had surpassed its previous £600m revenue target and is now targeting further growth beyond £750m through acquisitions and expanded international activity.
A major contributor to the upturn has been a concerted expansion into nuclear infrastructure, including work across the existing power generation fleet as well as involvement in new build programmes. This has been complemented by a significant facilities management contract on EDF nuclear sites, which has seen more than 1,000 staff brought into the business.
Total headcount has risen to around 5,250, comprising approximately 4,200 directly employed operatives and just over 1,000 staff in management and administrative roles.
Facilities management emerged as a particularly strong performer, with revenue rising sharply on the back of the nuclear contract. At the same time, systems integration specialist Capula also recorded growth and improved margins, reinforcing the broader recovery across Dalkia’s UK operations.
