Revenue of World's Top 10 Pharmaceutical Companies. Let's start. Number 10. GSK $36.15 billion. Number 9. AstraZeneca $44.35 billion. Number 8. Sanofi $45.2 billion to billion dollars. Number 7. Bristol Myers-Schweb $46.16 billion. Number 6. Roche $50.38 billion. Number 5. Norvatus $50.5 billion for billion dollars. Number 4. Merck $52.01 billion. Number 3. J and J $52.60 billion. Number 2. A V $58.05 billion. And number 1. Pfizer $100.33 billion.