The history of the Rijnhuizen Castle begins some eight hundred years ago when an originally wooden stronghold was first mentioned in the annals. Hardly two centuries later it was replaced by a brick building forming two fortified houses of 6 x 6 m2 connected together. During some turbulent centuries Rijnhuizen Castle was destroyed several times. In 1640 Sir Reinoud van Tuyll van Serooskerke rebuilt it into its present shape. In 1655 the De Geer family acquired Rijnhuizen that remained privately owned until the Foundation for Fundamental Research on Matter - FOM - bought it in 1958.

Rijnhuizen is one of the three research institutes of the Foundation for fundamental research on matter (FOM), the funding organization for physics in the Netherlands. In addition to these three institutes, FOM supports a large fraction of the physics research at Dutch universities. The primary goal of FOM is to promote fundamental research on matter for the advancement of science. The research funded by FOM is nationally coordinated in some 100 comprehensive research programmes, so-called 'FOM programmes'.

The engineering consists of two groups.

Rijnhuizen is one of the three research institutes of the Foundation for fundamental research on matter (FOM), the funding organization for physics in the Netherlands. The primary goal of FOM is to promote fundamental research on matter for the advancement of science.

The high-quality scientific research takes place in four main departments.

Find below the Annual Reports and Visitors Guides of the past few years.

Each year Rijnhuizen organizes a general public open house during the national 'Oktober Kennismaand'. About 950 visitors are visiting these open houses. People are able to visit scientific experiments and participate in various other activities. A new open house will be organized on Sunday 24 October 2010. Please keep an eye on this page then for any details.