Sereno is the third largest biotech company in the world and is the largest in Europe. The company operates in 44 countries with production facilities in 8 countries and sales in 94 countries. Sereno focuses on reproductive health, growth and metabolism, multiple sclerosis, dermatology, oncology, gastroenterology and autoimmune diseases. Prime products marketed are Cetrotide®, Crinone®, Luveris®, Raptiva®, Rebif®, Saizen® etc. Sereno invests 23% of sales in R&D.