The story
DEME was established as a holding company of two Belgian dredging contractors: Dredging International and Baggerwerken Decloedt. Two industrial and financial Groups currently control the share capital: Ackermans & van Haaren, a publicly listed Antwerp-based industrial investment Group; and CFE, a publicly listed civil contractor controlled by the French Vinci-Group.
Baggerwerken Decloedt has been active in maintenance and capital dredging along the Belgian coast since 1875. Dredging International in itself is a merger of two dredging companies in September 1974: Ackermans & van Haaren, and Société Générale de Dragage (SGD). Ackermans & van Haaren was established in 1852, Société Générale de Dragage was incorporated in 1930. Both companies, Baggerwerken Decloedt and Dredging International have been involved in the construction of the main Belgian ports and the deepening and maintenance of their navigation channels in the North Sea and the river Scheldt. Since their early beginnings they have operated on a worldwide basis, on all continents simultaneously.
From Wikipedia’s article on DEME, shared under CC BY-SA 4.0.3