Bolke Koster started his career in the field of finance at three consecutive Amsterdam based companies. Bolke Koster has been working in the health products industry since 2001 in various financial, commercial and management roles. He is CEO and owner of the Dutch food supplements company Vitals. He is also co-founder and chairman of a foundation for education concerning supplementation in complementary healthcare. Since 2012, Bolke Koster has been a board member of NPN, the Dutch association affiliated with EHPM. He is currently their Chairman.