Introduction Images of 150 years DEME, ending with a view on hashtag #DEME150.

Discover 150 years of DEME!

In 2026, DEME celebrates 150 years of marine and environmental engineering. From our early roots in 1876, we have grown from our origins in dredging and marine works into a leading, diversified group - shaped by expertise, innovation, resilience and a constant drive to push boundaries. 

Throughout this anniversary year, we’ll take you on a journey through our history, sharing stories and moments that show how challenges were approached, solutions were developed and ambitions kept moving forward. Across our channels and on this dedicated anniversary website, you can discover the people, projects and breakthroughs that made DEME what it is today. This website will be updated weekly with new stories. Throughout the year, we will use #DEME150 to share and connect these stories. 

As we reflect on 150 years, we continue to look ahead with the same spirit that defines us: We Care. We Dare. We Deliver.

1987

Beyond dredging: the salvage operations that shaped DEME's journey

Salvage operations have been part of DEME's story since the years following World War II, when many wrecks were cleared from the Belgian coast. From the 1960s onwards, wreck removal activities expanded, combining dredging expertise with innovative engineering solutions.

A major step forward came in the 1980s through TV Bergingswerken, a partnership that brought together specialized Belgian maritime expertise with Dredging International, Baggerwerken Decloedt & Zoon, Ondernemingen Jan De Nul and Herbosch Kiere. Together, they tackled increasingly complex assignments in the North Sea, the River Scheldt and beyond, demonstrating how different disciplines could be united to solve unique engineering challenges.

The combined expertise of the hydraulic engineering companies enabled TV Bergingswerken to develop Norma into the workhorse of the Flemish dredging and salvage sector. The dedicated vessel became a key asset for complex wreck removal and heavy lifting assignments, helping to bridge the gap between traditional dredging and offshore construction capabilities.

Mont Louis & Herald of Free Enterprise
A major breakthrough came with the recovery of Mont Louis, which sank after a collision with a ferry in 1984 and became the first major assignment for which Norma was deployed. In 1985-1986, the vessel's two wreck sections were dredged free from the seabed and lifted using floating platforms and the specially adapted Norma. This project demonstrated how dredging know-how could be combined with increasingly sophisticated heavy lifting techniques.
The salvage of the Herald of Free Enterprise showcased another engineering first. MS Herald of Free Enterprise was a Ro-Ro ferry which capsized moments after leaving the Belgian port of Zeebrugge on the night of 6 March 1987. Flemish companies played a leading role in the rescue operation and in the salvage works.

Sixteen heavy steel piles were driven into the seabed and connected to the overturned ferry, allowing it to be righted through a carefully engineered pulling operation. This project highlighted capabilities in offshore piling that would later become a cornerstone of GeoSea's activities. GeoSea would later become the Offshore Energy segment.

Scaldis
The experience gained through TV Bergingswerken contributed to the further development of Scaldis, which grew into a leading specialist in marine salvage, heavy lifting and offshore construction. Although Scaldis operates as an independent company, it remains closely linked to the group with DEME still retaining a majority stake. Today Scaldis operates Rambiz, one of the most recognizable heavy lift vessels in the world, further extending the legacy of Norma and the expertise built up through these pioneering salvage projects.

Looking back, these specialized salvage works formed a crucial link between traditional dredging and the diversified DEME of today. The expertise developed through vessels such as Norma and later Rambiz laid the foundations for the offshore installation and heavy lift operations that support modern offshore wind projects around the world.

Disclaimer

With 150 years of history, there are countless moments to tell. In this anniversary year, we share a non-exhaustive selection of stories that illustrate how DEME became the company it is today. These stories are drawn from a variety of historical sources, including books by authors such as Dirk Podevijn and Mon Vanderosteyne, company publications and the input of colleagues across the organization. As this website looks back on 150 years of heritage, it features archival material from different eras. Safety standards and working practices have evolved significantly over time and should be understood in their historical context.