Biogen

Founded in 1978, Biogen Idec is a biotechnology company specializing in treatments in the areas of immunology and neurology. The company's name-brand drugs include Avonex (for multiple sclerosis), Tysabri (for multiple sclerosis and Crohn's disease), Rituxan (developed jointly with Genentech for the treatment of non-Hodgkin's lymphoma and rheumatoid arthritis), and Fumaderm (for psoriasis, marketed in Germany).