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.

1894

The River Scheldt: where expertise grows generation after generation

In 1894, Nicolaas van Haaren’s firm was awarded the first contract for hydraulic engineering works on the Lower Scheldt, between Antwerp and the Dutch border, marking a major turning point in the enterprise’s history.

Aiming to improve the navigability of the river, the works were a prerequisite for the further development of the Port of Antwerp. The scope included dredging the access channel, modifying sections of the riverbed and depositing the dredged material in designated polders on the left bank, particularly in the Melsele area.

This important contract placed Nicolaas van Haaren and Hendrik Willem Ackermans firmly within the domain of large-scale port infrastructure projects and established a long-term involvement in the development of Antwerp as a major maritime hub. From that moment onwards, the company became structurally involved in successive port extensions, access improvements and works along the Scheldt.

Over the decades, the river has become our home turf: a place where expertise has been built up, refined and passed on through the generations. That enduring relationship is also reflected in the company’s fleet. Throughout our history, several vessels have carried the name Schelde or Scheldt, underlining the importance of the river to our identity and activities.

Today, that tradition continues with our hopper dredger Scheldt River, where the crew on board are working on the Scheldt regularly, adding their own chapter to a story that began more than a century ago.

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.