Gertjan van der Sluijs

Koninklijke Volker Wessels Stevin NV provides construction and civil engineering services. It operates business through the following markets: building and property development, energy and telecom, and infrastructure. It offers housing and utility construction, industrial construction, property development, civil engineering, network infrastructure, telecommunications infrastructure, railway construction and maintenance, technical installations, traffic technology, plant and machinery management, park management, building supplies and consulting services. The company was founded in 1854 and is headquartered in Amersfoort, Netherlands.

Argos Groep BV Wholesales and distributes petroleum products. It offers fossil fuels, such as petrol, diesel, natural gas, and fuel oils; petrol with bio-ethanol, bio-ethanol with petrol and diesel with rapeseed oil; and metalworking and machining fluids, hydraulic fluids, engine and transmission oils, and automotive lubricants, as well as industrial lubricants, coolants, and greases. The company founded by Peter Jacob Goedvolk in 1984 and is headquartered in Rotterdam, the Netherlands.

Volkerwessels Bouw & Vastgoedontwikkeling BV provides building and property development services. It offers services such as housing and utility construction, industrial construction, property development, civil engineering, road construction and network infrastructure (cable and pipelines). The company was founded in 1990 and is headquartered in Rijssen, the Netherlands.

Reggeborgh Invest BV is a family office founded in 1991 by the Wessels family. The Dutch company has grown into an international holding with subsidiaries in Germany, Belgium, and the Netherlands.

Varo Energy BV engages in the refining, storing, sale, and supply of oil and fuel products. It offers liquid petroleum, gasoline, biofuels, ultra low sulphur diesel, heating oil, aviation fuels, bitumen, and bunker fuel oil. The company is headquartered in Rotterdam, the Netherlands.

Tivo Exploitaties BV is an investment holding Dutch company. The private company is based in Rijssen, Netherlands.

Reggeborgh Beheer BV is a private equity family office of the Wessels Family founded in 1991. The firm is headquartered in Rijssen, the Netherlands.

SMIT Internationale NV engages in the provision of maritime services. It offers assistance to incoming and outgoing seagoing vessels, including roll on roll off ships, oil and chemical tankers, container ships, reefers, and mixed cargo ships. The company was founded by Fop Smit in 1842 and is headquartered in Papendrecht, the Netherlands.

One-Dyas BV engages in the exploration and production of oil and gas. The firm focuses primarily on developing and exploiting gas fields in the North Sea. The company is headquartered in Amsterdam, the Netherlands.