American Academy of Pediatrics

Pfizer is one of the world's largest pharmaceutical firms, with annual sales close to $50 billion (excluding covid-19-related product sales). While it historically sold many types of healthcare products and chemicals, now prescription drugs and vaccines account for the majority of sales. Top sellers include pneumococcal vaccine Prevnar 13, cancer drug Ibrance, and cardiovascular treatment Eliquis. Pfizer sells these products globally, with international sales representing close to 50% of total sales. Within international sales, emerging markets are a major contributor.

In the pharmaceutical industry, GSK ranks as one of the largest firms by total sales. The company wields its might across several therapeutic classes, including respiratory, antiviral, and vaccines, and has been growing its presence in oncology and immunology, as well. GSK uses joint ventures to gain additional scale in certain markets like HIV.

Sanofi is a leading French multinational pharmaceutical and healthcare company, recognized as one of the largest in the world by revenue. The company focuses on developing and marketing prescription drugs, vaccines, and therapies for rare diseases. With operations in over 70 countries and a workforce of more than 83,000 employees, Sanofi plays a significant role in global healthcare. Founded in 1973, Sanofi has a rich history marked by key mergers and acquisitions, including the formation of Sanofi-Aventis and the acquisition of Genzyme. The company is known for its innovative vaccines, including those for polio, influenza, and meningitis, and has pioneered enzyme replacement therapies for rare diseases. Sanofi is committed to research and development, aiming to improve the quality of life for patients worldwide through its diverse portfolio of pharmaceutical products and humanitarian programs.