Meet the team Home » About us » Team Meet our team of consultants, trainers and supporting staff. Jaap KosterChief Executive Officer, Senior GxP Consultant, Vaccine SMEPCS Netherlands Riekert BruininkSenior GxP Consultant, ex-EMA Senior & Coordinating GMP/GDP inspector, co-author of GDP guidelinePCS Netherlands Julian KosterDirector of BusinessPCS Netherlands Karen ZimmermannTrainer, GxP Consultant, CoachPCS Netherlands Sandeep KumarSenior GxP ConsultantPCS India Dr. Bilquis YasmeenDirector, Senior GxP ConsultantPCS Pakistan Ashiq HussainDirector, Senior GxP ConsultantPCS Pakistan Eric van WensveenSenior GxP Consultant, AdvisorPCS Netherlands Wendy ZengJunior GxP ConsultantPCS Netherlands Amber de LabijeQA-Manager/Project SupportPCS Netherlands Sam van LieshoutTraining ManagerPCS Netherlands Rosan van HeldenTraining CoordinatorPCS Netherlands Claudia van LeeuwenTraining CoordinatorPCS Netherlands Yvonne KosterFinance ManagerPCS Netherlands Hans MeerburgSenior GxP Consultant, TrainerPCS Netherlands René MaassenTrainer, ex-EMA Senior GMP/GDP InspectiorPCS Netherlands Annie RietveldTrainer, ex-EMA Senior GMP/GDP InspectiorPCS Netherlands Johan HammingaTrainerPCS Netherlands Francis BuiterSenior GxP Consultant, TrainerPCS Netherlands Jolanda TijmesTrainerPCS Netherlands Désireé VendrigTrainer, ex-EMA Senior GMP/GDP InspectiorPCS Netherlands Rajendra VidwansSenior GxP Consultant, TrainerPCS India Fred de BaasAdvisor didactic educationPCS Netherlands