Johannes Jacob de Rooij

SHV Holdings NV engages in the distribution of consumer goods and liquefied petroleum gas. Its businesses include cash-and-carry wholesale, heavy lifting and transport solutions, industrial services, animal nutrition and fish feed, exploration and production of oil and gas, and provision of private equity. The company was founded in 1896 and is headquartered in Utrecht, the Netherlands.

Royal Imtech NV engages in the provision of technical services in the fields of electrical, automation, and mechanical solutions. It operates through the following geographical segments: Benelux; Germany and Eastern Europe; the United Kingdom and Ireland; Nordic; Spain; Traffic and Infra; and Marine. The company was founded in 1993 and is headquartered in Gouda, the Netherlands.

ADG dienstengroep BV operates as a financial holding company with interests in facility services. The company was founded by Joop van Riemsdijk in 1952 and is headquartered in Almelo, the Netherlands.

Nederlands Duitse Handelskamer, also known as the DNHK, is a Dutch company that helps German companies succeed in the Netherlands through advice, training, and their network. The private company is based in The Hague, Netherlands. The company has been doing this for over 115 years.