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Staff members   Gertjan van de Groep   Bert-Jan de Visser   Anco de Graaf   Saksia Postma   RICK ASSEN   TINEKE VAN DEN BERG   Ellen Imminkhuizen   Danielle van der Veer   Mia Dingemans   WIM DE KRUIJF Mission History Locations References Summum.nu Contact Onze interim managers (in Dutch)

ELLEN IMMINKHUIZEN Management Assistant Ellen (1981) is Management Assistant at Van de Groep & Olsthoorn since 2001. She works in the secretarial department, keeps the accounts and makes sure that the information on our website is up-to-date.