Aventis S.A.
Dedicated to improving life through the discovery and development of innovative products in the fields of prescription drugs, vaccines, therapeutic proteins, crop production and protection, animal health, and nutrition. http://www.aventis.com/
Novartis
Created by the merger of Ciba and Sandoz. Has core businesses in healthcare, agribusiness and consumer health. http://www.novartis.com/
Leo Pharma
Research is directed towards the identification of new promising drug candidates based on expertise in medicinal chemistry and cellular biology. http://www.leo-pharma.com/