Bayer AG is a German chemical and pharmaceutical company founded in Barmen (today a part of Wuppertal), Germany in 1863. It is headquartered in Leverkusen, North Rhine-Westphalia, Germany and well known for its original brand of aspirin. The company was 150 years old on 1 August 2013.
Bayer MaterialScience is a supplier of high-tech polymers, and develops solutions for a broad range of applications relevant to everyday life.
Official website: http://www.bayer.com/