John Koolwijk

John Koolwijk currently serves as the Country Manager at Stallergenes Greer, a global biopharmaceutical company focused on allergy diagnosis and treatment, since October 2023. Previously, John held various leadership roles at Vifor Pharma, including Country Manager for The Netherlands, Business Unit Head, Global Marketing Director, and Marketing Manager for the Benelux region from September 2015 to October 2023. John’s earlier experience includes positions such as Business Unit Director at Actelion, multiple roles at Amgen related to nephrology and bone, and senior marketing and management positions at Ortho Biotech/Janssen-Cilag and Janssen-Cilag. John's career began at Pharmacia as a Rayon Manager and a sales representative at Kraft Jacobs Suchard. Educational qualifications include studies at TIAS School for Business and Society, Inholland University of Applied Sciences, and chr s.g. pascal.