It is with deep sadness that we share the news of the passing of Ad van den Biggelaar, COO at Bithoven Biologicals (BBio). Ad was a beloved colleague, whose legacy and influence within our company are undeniable.

Ad started his career in 1990 with the predecessors of BBio and grew to become one of the architects of the company as we know it today. His knowledge and dedication helped shape our company.

Ad was a very committed person. He knew everyone and everyone knew him. His warm personality and genuine interest in the people around him made him a beloved figure. He was always ready to listen, help and inspire.

Ad was proud of what we make at BBio and even prouder of the people who make it. Since the founding of Bilthoven Biologicals in 2012, Ad has been involved in more than 700 million polio vaccines, giving millions of children around the world a change at a good start in life. He also supported the production of BCG, which treated over 200,000 bladder cancer patients during that period. The impact of his work is something to be incredibly proud of.