Aventis Is a pharmaceutical and lab assay testing company. It was formed in 1999 when Rhône-Poulenc S.A. merged with Hoechst AG. The merged company was based in Strasbourg, France.
Sanofi-Aventis was formed in 2004 when Sanofi-Synthélabo purchased Aventis.
The Aventis Prizes are managed by the Royal Society, the UK national academy of science, and the Aventis Foundation, a German charitable trust established in 1996 as the Hoechst Foundation with an endowment of €50 million. In 2000 the foundation was renamed the Aventis Foundation subsequent to the 1999 merger of Hoechst and Rhône-Poulenc.
Companies listed on the Frankfurt Stock Exchange | Sanofi-Aventis