Bart De Poorter

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.

G-tec SA provides geotechnical engineering services. It specializes in worldwide geophysical investigations, geotechnical investigations, and environmental investigations. The company was founded by Lucien Halleux in 1993 and is headquartered in Herstal, Belgium.

Part of Ackermans & van Haaren NV, Nordsee Nassbagger-und Tiefbau GmbH is a German company that provides dredging, marine engineering, and environmental remediation services. The company is based in Bremen, Germany. The CEOs are Bart Vandemeulebroucke, Eric Tancré, Koen De Vylder. The company was founded in 1968.

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 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.