DDEME Group handles marine engineering and contracting, performing dredging, land reclamation, offshore wind farm installation, marine and port infrastructure work, and environmental projects like soil remediation. It plans and executes large coastal and offshore projects with a fleet of specialized vessels and engineering teams to move earth, install structures, and manage permits and environmental protections. DEME differentiates itself with one of the largest fleets of dredging and marine construction vessels, enabling big, multi-country projects and an end-to-end service from dredging to environmental remediation. Its goal is to deliver complex marine and coastal construction and environmental projects safely and efficiently on a global scale, helping clients develop ports, energy infrastructure, and reclaimed land.
Work here?Claim your company
Industries
Company Size
1,001-5,000
Company Stage
IPO
Headquarters
Antwerp, Belgium
Founded
1876
See people who can refer or advise you
Help us improve and share your feedback! Did you find this helpful?
DEME and Prysmian start cable installation in Veerse Meer for Dutch offshore wind connections. Dutch TSO TenneT has started installing 525 kV subsea power cables in the Veerse Meer in the Netherlands, with Prysmian supplying the cables and DEME carrying out the installation. The work forms part of the two offshore grid connections IJmuiden Ver Alpha and Nederwiek 1, designed to bring electricity from future North Sea wind farms ashore. Installation in the Zeeland waterway is scheduled to continue until spring 2027. The project marks the first time TenneT has installed 525 kV cables in an inland waterway. Specially developed pontoon for 525 kV cable installation. DEME has developed a dedicated pontoon equipped for laying the high-voltage cables under the conditions in the Veerse Meer. The cables are manufactured at Prysmian's factory in Finland. Each grid connection requires four cables in the waterway: two high-voltage power cables, one spare cable and one fibre-optic cable. The power cables have a diameter of 16 cm and weigh approximately 67 kg per metre. The installation method uses a vertical system to lower the cables to the required depth. High-pressure water temporarily loosens the sand beneath the cables, allowing them to be buried at least 3 metres below the bed of the lake. The sand then settles back around the cables as the installation progresses. According to TenneT, this approach avoids dredging and reduces water turbidity, helping to limit the impact on aquatic flora and fauna. It is also intended to minimise disruption to shipping and recreational users of the Veerse Meer. Connections link offshore wind to Borssele. The cable works are part of the IJmuiden Ver Alpha and Nederwiek 1 offshore grid projects. The routes come ashore at Banjaardstrand, near Kamperland, before passing beneath the Veerse Gatdam and through the Veerse Meer towards Borssele. Two onshore converter stations are planned at Borssele. These will convert electricity transmitted at 525 kV direct current into 380 kV alternating current for delivery to TenneT's national transmission grid. Offshore wind capacity expansion. The cable infrastructure is part of the Netherlands' wider offshore wind expansion programme. National offshore wind capacity is expected to increase from approximately 4.7 GW to around 22 GW by 2035. TenneT expects the work in the Veerse Meer to be completed in spring 2027, allowing recreational activities on the waterway to resume without construction-related disruption during the summer season.
DEME secures two marine works contracts in Italy and Spain. DEME closed 2025 with a strong Mediterranean statement: two fresh marine works awards that target real coastal and environmental pressure points. One contract supports Naples as it prepares for the 38th America's Cup, with heavy marine works tied to the Bagnoli-Coroglio redevelopment. The other tackles beach erosion in Valencia through a large-scale nourishment program. For professionals tracking maritime jobs and project-driven hiring, this matters. At SeaEmploy, we watch these contract signals closely because they often foreshadow demand for crews, subcontractors, and specialist suppliers across the region. DEME says its share of the two contracts sits in the €50 - 150 million range. That's not just revenue talk. It hints at the project scale, vessel intensity, and the length of the execution window across Italy and Spain. DEME contracts in Italy and Spain: what's actually included. Italy: Naples marine works linked to Bagnoli-Coroglio and the America's Cup. In Italy, DEME will work in the Bay of Naples at the Bagnoli-Coroglio site. The scope blends coastal engineering with environmental cleanup, which requires careful sequencing and tight controls. A consortium brings the delivery model. DEME partners with Savarese Costruzioni and Iterga Costruzioni Generali to execute key components offshore and along the former industrial waterfront. The numbers tell the story. The plan includes 900 meters of offshore breakwaters, the removal of about 130,000 m^3 of sediments, plus demolition of a deteriorating central pier and former service buildings from the old steel-plant era. DEME also targets substantial completion by next summer. So the area can host preliminary regattas and enable wider urban regeneration steps. This contract sits inside a much larger narrative: Naples will host the 38th America's Cup in 2027, with Bagnoli identified as a focal zone for revitalization and event infrastructure. Spain: Valencia coastline protection through nourishment and shoreline measures. In Spain, DEME won the Valencia beach nourishment project through a joint venture with Rover Maritime, commissioned by Spain's Ministry for Ecological Transition (MITECO). The project targets three well-known beaches: Sagunto, Sueca, and Cullera. Local communities have watched these stretches lose sand for decades, with storms accelerating retreat and shrinking the usable beach width. DEME doesn't treat this as a simple sand dump. The scope combines nourishment with complementary coastal measures to improve longevity. The goal is straightforward: restore protective capacity and keep the coastline enjoyable and functional for residents, tourism, and ecosystems over the long term. Dredging that changes the outcome: 3 million m[3], deep-water sourcing, and smart placement. The Spanish award stands out because of its volume and operating depth. DEME plans dredging and placement of ~3 million m[3] of sand, using the trailing suction hopper dredger Bonny River, which can operate at depths beyond 100 meters. That capability matters when nearshore compatible sand sources run scarce. Volume alone doesn't guarantee success. Beach nourishment works when grain size matches, placement respects coastal drift, and contractors shape the profile so waves rebuild the beach instead of stripping it immediately. DEME also adds dune restoration and builds new groins as part of the Valencia package, aiming to reduce losses and stabilize key sections. Taken together, the Spain and Italy scopes show a consistent pattern: DEME positions its dredging fleet and marine civil engineering teams as problem-solvers for "messy" coastlines. Not just construction. Remediation, protection, and public-facing outcomes that governments can defend. Closing paragraph. DEME's two Southern Europe wins connect high-profile sport, urban regeneration, and climate-driven shoreline defense in one December announcement. Naples gets offshore breakwaters and seabed remediation at Bagnoli-Coroglio ahead of America's Cup preparations, while Valencia gets a major nourishment program across Sagunto, Sueca, and Cullera with deep-water sand sourcing and added coastal stabilization measures. If you work in dredging, marine construction, hydrography, or coastal engineering, keep an eye on these project timelines. They often translate into real staffing ramps. Follow SeaEmploy.com for practical updates on maritime opportunities tied to active contracts - and share this article with someone who tracks Mediterranean marine works.
Seaway7 bags transition piece contract for polish wind farm. Seaway7 has won work to set up transition pieces at the 390MW BC-Wind offshore wind farm in Poland. The marine contractor plans to use its heavy-lift vessel, Alfa Lift, to install the 26 platforms around 16 miles off the Pomeranian coast, with an aim to start in 2027. Seaway7 will collaborate with DEME Offshore, tasked with installing the monopiles, and Cadeler, which is set to erect Siemens Gamesa 15MW turbines in 2028. At the end of September, the Regional Director for Environmental Protection in Gdansk granted approval for the reconstruction and construction of port infrastructure in Wladyslawowo for the needs of servicing offshore wind farms. The application, submitted by C-Wind Polska, is intended so that the completed work will allow the port to serve as an operations and maintenance base for an offshore wind farm. Although not mentioned specifically by name, this is highly likely to be BC-Wind. The works include adjusting quays and piers, building or upgrading utility networks and service areas, and erecting some new technical buildings necessary for O&M activities and vessel servicing. The work also does not require a full EIA, provided the investor follows a detailed list of mitigation and environmental protection conditions. For more information curated from over 275 offshore wind turbine models, including dimensions and wind speeds, click here.
Belgian marine contractor DEME Group NV (EBR:DEME) on Thursday announced the launch of Norse Energi, its second wind turbine installation vessel under construction at the Yantai CIMC Raffles Offshore Ltd in China.
In line with its commitment to innovation and sustainability, DEME Group is very proud to partner with the Innoptus Solar team.
Find jobs on Simplify and start your career today
Don't see your dream role? Check out thousands of other roles on Simplify.Browse all jobs
Industries
Company Size
1,001-5,000
Company Stage
IPO
Headquarters
Antwerp, Belgium
Founded
1876
Find jobs on Simplify and start your career today
Don't see your dream role? Check out thousands of other roles on Simplify.Browse all jobs