When it comes to pharmaceutical companies, there are several global players who dominate the market. These companies manufacture a range of medications and medical devices which have helped change the face of the medical industry. We reveal the top 3 pharmaceutical companies in the world based on their sales revenues in 2014. Pfizer Inc.The third largest pharmaceutical company in the world is Pfizer Inc. Headquartered in New York, this American company was founded in 1849 by Charles Erhart and Charles Pfizer. The company develops a range of vaccinations and medications for the cardiology, oncology, immunology, and neurology sectors. Some of their most famous medications include Lyrica, Lipitor, Viagra and Celebra. Their sales revenue in 2014 was $52.7 billion.NovartisFormed in 1996, this Swiss pharma company had sales in excess of $57.2 billion in 2014. The company is divided into no less than six divisions for vaccines, eye care, generic consumer drugs, corporate ventures as well as animal health. Some of the major drugs manufactured by Novartis include Clozaril, Tegretol, Diovan, Glivec and Femara.Johnson and JohnsonJohnson and Johnson are the leading pharmaceutical company in the world. As an American company that was founded in 1886, Johnson and Johnson are leading innovators when it comes to consumer products, medical devices and diagnostics. They manufacture a range of household brand names including Band-aid, Tylenol, Clean and Clear, and Acuvue. With the recent developments in groundbreaking medication including Sirturo, the first ever tuberculosis drug that has had some promising results, Johnson and Johnson’s $65.03 billion sales are only set to increase over the coming years.These are the top three big pharma companies in the world. Other big names that are worthy of a mention include Roche, Sanofi, Merck and GlaxoSmithKline.