1. Biogenetech
2. CanSino Biologics Inc.
3. CSL Limited
4. Emergent Biosolutions Inc.
5. GeneOne Life Science
6. GlaxoSmithKline PLC
7. Jiangsu Recbio Technology Co. Ltd.
8. Merck & Co. Inc.
9. Pfizer Inc.
10. Sanofi-aventis Groupe
11. SK Chemicals
12. Vaccitech PLC