| Company Name | Country |
|---|---|
| Orexa B.V. | Netherlands |
| ORKEO | France |
| ORNYX OÜ | Estonia |
| Orphalan | France |
| ORPHELIA Pharma | France |
| Orphelion AB | Sweden |
| Orphix Consulting GmbH | Germany |
| ORYX GmbH & Co. KG | Germany |
| Oryzon Genomics, S.A. | Spain |
| Osalia | France |
| OSE Immunotherapeutics | France |
| OSIVAX | France |
| OT4B | France |
| OvoVet Pharma SRL | Romania |
| Ovum SPF S.L. | Spain |
| Oxcia AB | Sweden |
| Oxolife SL | Spain |
| Ozack ApS | Denmark |
| P. Cosmidis & Co EE | Greece |
| P.T. Hadjigeorgiou & Co Ltd | Cyprus |
| Paesel & Lorei GmbH & Co. KG Biochemika, Diagnostika und Pharzeutika | Germany |
| Palo Biofarma, S.L. | Spain |
| Pandemblock Ltd | Finland |
| PanGenix Pharma Limited | Cyprus |
| PannonPharma Gyógyszergyártó Kft. | Hungary |
| PannTheraPi SAS | France |
| Paradigm Biopharmaceuticals (Ireland) Ltd | Ireland |
| Paras Biopharmaceuticals Finland Oy | Finland |
| Passauer Pharma GmbH | Germany |
| Patient One | Netherlands |
| Pegascy SAS | France |
| PEKANA Naturheilmittel GmbH | Germany |
| Pelpharma Handels GmbH | Austria |
| PentixaPharm AG | Germany |
| PEP-Therapy | France |
| Peptomyc S.L. | Spain |
| Perffarma Sp. z o.o. | Poland |
| PGF Pharma International d.o.o. | Croatia |
| Phadisco Ltd | Cyprus |
| Phafag Pharma Research & Trading GmbH | Austria |
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