1. Amgen
2. Cambridge, USA
3. Brixham Environmental Laboratory
4. AstraZeneca
5. Brixham, UK
6. Merck Research Laboratories
7. West Point, USA
8. Pfizer Global Research and Development
9. San Diego, USA
10. GlaxoSmithKline
11. Research Triangle Park, USA
12. Medicines Research Centre
13. Stevenage, UK