1. Pfizer 2. Novartis 3. GlaxoSmithKline 4. Merck & Co 5. Bayer 6. Roche 7. AbbVie 8. Johnson & Johnson 9. Sanofi 10. Gilead Sciences 1. Pfizer: Pfizer Inc. is an American multinational pharmaceutical and biotechnology corporation headquartered on 42nd Street in Manhattan, New York City. The ...

Novartis’ Sandoz Novartis AG is a Swiss-American multinational pharmaceutical corporation based in Basel, Switzerland and Cambridge, Massachusetts, United States (World Research). It is one of the largest pharmaceutical companies in the world. Novartis makes the drugs clozapine (Clozaril), diclofenac ...