Discover 150 years of DEME!

DEME’s roots trace back to 1876, when Hendrik Willem Ackermans (1855–1945), a newly qualified civil engineer from the Polytechnic School of Delft in the Netherlands, joined the contracting enterpri

In 1878, Nicolaas van Haaren was awarded the contract for the dike works on Rozenburg Island in the Netherlands, along the Nieuwe Waterweg, the vital maritime link connecting Rotterdam to the North

In the winter of 1880–1881, the disastrous floods at Nieuwkuijk had a profound impact across the Netherlands.

Between the 1880s and early 1900s, the modernization of the Ghent–Terneuzen Canal was driven by the need to keep pace with increasing ship sizes and the transition from sail to steam.

In December 1885, Nicolaas van Haaren again teamed up with Hendrikus Theodorus Wiegerinck and won the contract for the deepening of Het Scheur, which aimed to improve navigability on this important

Between 1887 and 1915, works carried out in ’s-Hertogenbosch in the Netherlands contributed to the expansion of the city to the west.

The first major assignment for Nicolaas van Haaren and Hendrik Willem Ackermans in Belgium marked a defining moment in the entrepreneurs’ history.

As the scale and complexity of hydraulic and infrastructure projects grew in the late 19th century, Nicolaas van Haaren and Hendrik Willem Ackermans thrived by forging partnerships, not only with f

When the Merwede Canal in the Netherlands opened in 1892, it marked a major step forward in inland navigation, strengthening the shipping connection between Amsterdam and Germany.

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 e

The construction of the pioneering hopper suction dredger Schelde II for the firm of Nicolaas van Haaren set a new standard in dredging.

At the end of the 19th century, improving access to the Scheldt was essential for the growth of the Port of Antwerp.

At the end of the 19th century, Hendrik Willem Ackermans and Nicolaas van Haaren continued to push the boundaries of dredging technology and scale.

At the turn of the 20th century, the Scheldt was already a vital waterway for trade and industry. Until then, most contracts had focused on deepening the river. But in 1901, a shift occurred.

Petroleum had been imported through the Port of Antwerp since the 1860s. By 1898, the city decided to relocate these activities to the Zuider quays, south of the city centre.

Argentina’s booming agricultural exports demanded modern river access to global markets. Rosario, on the Paraná River, was chosen to become that new harbor.

When works began in Argentina, groups of Dutch and Belgian workers boarded ships bound for a long journey to South America.

By the early 1900s, Antwerp was preparing for a bold northward expansion of its port.

When the founders’ activities expanded beyond Argentina, their journey led south to Brazil’s Rio Grande do Sul.

The founders’ ambitions in Latin America extended far beyond the worksites. As projects in Rosario and Bahía Blanca progressed, new opportunities emerged across the region.

By 1911, the founders were increasingly involved in harbor dredging and improvement works in the French port of Le Havre.

When strolling along the legendary Sint-Anneke Plage in Antwerp, few people realize that this much loved riverside beach originated from dredging works on the Scheldt.