Klaas-Jan Hollaar

Klaas-Jan Hollaar is a seasoned business controller with extensive experience in financial management across various organizations. Currently serving as a Businesscontroller at Stichting Humanitas Rotterdam en Rijnmond since May 2025, Klaas-Jan has previously held roles as a Business Controller at Fivoor and an adviseur Planning en Control at Pameijer. Additional experience includes advising on planning and control at Havenziekenhuis en Instituut voor Tropische Ziekten B.V., and serving as a Financial Officer and Operational Controller for Cordaid, where responsibilities included financial oversight for Sudan. Previous positions also include roles at Laurens, dorcas Aid International as Country Coordinator for Bosnia & Herzegovina, and Zorgverzekeraar DSW as a Medewerker Interne Controle.