Eddy G. van Doorn

Stichting Pluryn Hoenderloo Groep is a holding company that engages in the provision of specialty outpatient facilities. It also has a college that provides training for those unable to follow regular vocational education due to a handicap. The company is headquartered in Nijmegen, the Netherlands.

HSK Groep BV provides diagnosis and treatment services to people with mental health issues. The firm is a commercial health institution that examines and treats people with psychological problems. The company was founded by C. A. L. Hoogduin, Cas P. D. R. Schaap and Attila Kladler in 1991 and is headquartered in Arnhem, the Netherlands.