Pfizer is a global biopharmaceutical giant engaged in the manufacture and development of healthcare products. It is one of the largest global pharmaceutical companies with more than $50 billion in revenues. The company has a presence across major therapeutic areas including Oncology, Inflammation & Immunology, Vaccines, Internal Medicine and Rare Disease. Founded in 1849, Pfizer has come a long way to become a leading healthcare company with manufacturing sites in 58 locations and sales in 125 countries. The U.S. accounts for nearly 50% of Pfizer’s total sales while the rest of the world accounts for the rest of 50%. Pfizer’s vast distribution network enables it to provide more than 40 billion doses in just one year. The company has a wide portfolio of medicines, vaccines, and consumer healthcare products and is known for popular drugs like Prevnar among others. The company’s business can be divided into three distinct business segments - Pfizer Biopharmaceuticals which accounts for 56% of revenues, Upjohn (37%) and Consumer Healthcare (7%).