Koen De Vylder

Dredging, Environmental & Marine Engineering NV engages in the provision of dredging, marine engineering, and environmental remediation services. Its activities encompass through dredging, land reclamation, and hydraulic engineering services for the offshore oil and gas, renewable energy industries, and environmental works. The company was founded in April 1991 and is headquartered in Zwijndrecht, Belgium.

Tideway BV provides offshore dredging, landfall construction, and pipeline stabilization services. It offers pipeline related services, including preparation of seabed, scour prevention around structures, pipeline protection against anchor damage and trawler boards, offshore ballasting works, upheaval buckling prevention, and insulation of pipelines. The company was founded in 1991 and is headquartered in Breda, the Netherlands.

DEME Environmental NV provides dredging services. The company is based in Zwijndrecht, Belgium, and has subsidiaries in Belgium, UK, Ireland, and Norway. The Belgian company was founded in 1988. Dirk Poppe has been the CEO of the company since 2014. DEME Environmental was acquired by Dredging, Environmental & Marine Engineering NV, part of Ackermans & van Haaren NV from June 30, 2022, on March 12, 2003.

Société de Dragage International SA constructs maritime and river works. The company was founded on July 15, 2005 and is headquartered in Lambersart, France.

Part of Ackermans & van Haaren NV, Baggerwerken Decloedt & Zoon NV provides dredging, marine engineering and environmental remediation services. The company is based in Oostende, Belgium. The CEOs of the Belgian company are Eric Tancré, Philip Hermans.

Part of Ackermans & van Haaren NV, New Waves Solutions Ltd. provides dredging services. The company is based in Weybridge, UK.

Part of DEME Environmental NV, Deme Environmental Contractors (United Kingdom) is a British company that engages in decontaminating soil for development sites. The company is based in London, UK and was founded in 2001.

Founded in 2013, DEME Concessions NV is a subsidiary of Ackermans & van Haaren NV and acts as an alternative investment manager. The company is based in Zwijndrecht, Belgium.

Part of Ackermans & van Haaren NV, DEME Infrasea Solutions NV provides oil and gas support services and constructs bridges, tunnels, and sewage systems. The company is based in Zwijndrecht, Belgium. The Belgian company was founded in 2015. Eric Tancré has been the CEO of the company since 2015.

Part of Ackermans & van Haaren NV, DEME Offshore Equipment NV is a Belgian company that provides specialized geophysical and geographic information system services. The company is based in Zwijndrecht, Belgium. Founded in 2014, DEME Offshore Equipment focuses on offering these specialized services to its clients.

Part of Ackermans & van Haaren NV, DEME Offshore Holding NV is a Belgian company that provides engineering, technical consulting, dredging services, and other specialized construction work. The company is based in Zwijndrecht, Belgium and was founded in 2005.