1. Merck & Co.
2. Inc.
3. Rahway
4. USA
5. Pfizer Global R&D – San Diego
6. Bristol-Myers Squibb
7. New Brunswick
8. Amgen
9. Cambridge
10. Boehringer Ingelheim
11. Ridgefield
12. Novartis Institute for Biomedical Research (NIBR)
13. Boston
14. Genentech
15. San Francisco
16. Pfizer Global R&D
17. Groton
18. AstraZeneca
19. Macclesfield
20. UK