Herman Diederik Tjeenk Willink

Stichting Het Nationale Park De Hoge Veluwe is the largest actively managed conservation area in private hands in the Netherlands. The Park covers 5,400 hectares of woodland, heathland, peat bogs and drift sand. It enjoys a wide variety of plants and animals and provides habitats to extremely rare Red List species. Together with the Country-residence/Museum Jachthuis Sint Hubertus, Visitor Centre/Museonder, Kröller-Müller Museum and the Sculpture Garden the Park forms a unique and internationally renowned combination of nature, art and architecture. Stichting Het Nationale Park De Hoge Veluwe was founded in 1919 and is headquartered in Hoenderloo, the Netherlands.

Nederlandse Beleggingsmaatschappij voor Zeeschepen NV is a closed-end investment fund, which engages in the investment vehicles in seagoing vessels. It operates through the following business segments: Crude, Product Tanker, Chemical, Gas, Container, Handy, MPP, and Other. The company was founded by Herman Diederik Tjeenk Willink on March 16, 2005 and is headquartered in Amsterdam, the Netherlands.