W olfgang Marguerre is a self-made German billionaire who is the founder and sole owner of the Octapharma Group, a major global producer of human protein-based pharmaceuticals. He founded the company in the 1980s and has since built it into a major global player in its highly specialized niche. Octapharma specializes in collecting human blood plasma and purifying it to produce life-saving protein-based therapies for the treatment of rare and chronic diseases, such as hemophilia and other immune system disorders.

Under his leadership, Octapharma has grown into a major global enterprise with a large network of plasma collection centers and manufacturing plants across Europe and North America. The company remains privately held by him and his family, and his ownership of this highly successful and profitable pharmaceutical enterprise is the source of his multi-billion dollar fortune. He is also a prominent philanthropist, particularly in his hometown of Heidelberg, where he has been a major benefactor to the university and the local theater.