1. Advanced Clinical
2. Alcura
3. Charles River Laboratories Inc
4. Clinipace
5. Cti Clinical Trial And Consulting Services Inc
6. Icon Plc
7. Iqvia
8. Kcr
9. Labcorp Drug Development
10. Medpace
11. Parexel
12. Psi Cro
13. Syneos Health
14. Worldwide Clinical Trials
15. Wuxi Apptec