In 1998 Willem gained his Law degree at the Erasmus University of Rotterdam. He graduated in commercial law. In 1998 he started work at Kempen & Co in the Equity Sales department, where he provided advice on Dutch small and mid-caps institutional investors. At the end of 2003, he moved over to Equity Research at Kempen & Co to become a small & mid cap analyst. In 2006, he founded EValuation Capital Management. Willem is a Chartered Financial Analyst (CFA).