DEME’s Offshore Energy division has reported EBITDA of €655 million for 2025, up 52% year-on-year.
The marine contractor’s offshore wind unit generated turnover of €2.13 billion in 2025, up 4% on 2024, while EBIT rose 54% to €398.3 million, according to the company’s full-year results .
The order book stood at €4.24 billion, broadly in line with the previous year, supported by follow-on projects, the addition of Havfram and new contract awards including Formosa 4 in Taiwan, Nordseecluster B in Germany and BC Wind in Poland .
Fleet utilisation remained high at 85% or 44 weeks, compared with 90% or 47 weeks in 2024 .
In the United States, Offshore Energy installed all 176 monopiles at Dominion Energy’s Coastal Virginia Offshore Wind project and has moved into transition piece and offshore substation installation, with this phase expected to be completed before the end of the first half of 2026 .
At Vineyard Wind, DEME is completing turbine and blade installation, while cable installation works were carried out for Empire Wind 1, with both projects expected to be finalized in the first half of 2026 .
In APAC, DEME’s joint venture completed installation of all jacket foundations at the Hai Long project using the Green Jade vessel and is progressing turbine installation, with Sea Challenger scheduled to commence operations in April 2026 .
For Greater Changhua, seabed preparation and scour protection for the offshore substation have been finalized, while preparations are advancing at Fengmiao to initiate pin pile installations in the first quarter of 2026 .
In Europe, DEME completed its work at Île d’Yeu and Noirmoutier, installed the offshore substation and initiated jacket installation at Dieppe–Le Tréport, and started inter-array and export cable installation at Baltic Power, with works continuing into 2026 .
In the UK, following completion of cabling at Neart Na Gaoithe and Dogger Bank A and B, the team has commenced work on Dogger Bank C, while heavy-lift jack-up vessel Innovation completed a decommissioning campaign in the North Sea .
During the second quarter of 2025, DEME completed the acquisition of Norwegian offshore wind contractor Havfram, adding the next-generation wind turbine installation vessels Norse Wind and Norse Energi to its fleet .
Norse Wind was delivered in the fourth quarter of 2025 and is expected to commence turbine installation works for Vestas in the first half of 2026, while Norse Energi was delivered in January 2026 and is scheduled to start its first project activities in the third quarter of 2026 .
The Offshore Energy segment also ordered a new Offshore Construction Vessel to expand its subsea cable installation capabilities alongside Living Stone and Viking Neptun .