1. CSL Behring Bern Switzerland
2. Biotest Dreieich Germany
3. Kedrion Castelvecchio Pascoli Italy
4. CSL Behring Marburg Germany
5. PPTA Annapolis Maryland USA
6. Grifols Sant Cugat del Vallès Spain
7. Takeda Vienna Austria
8. PPTA Brussels Belgium
9. BioProducts Laboratory Elstree UK