Sanofi is the fourth-largest pharmaceutical company worldwide in terms of sales. The company was formed as Sanofi-Aventis in 2004 by the merger of Aventis and Sanofi-Synthélabo. Its main business areas are pharmaceuticals, human vaccines, and animal health. Sanofi has more than 110,000 employees and operates in more 100 countries. It is headquartered in Paris, France.
