- AstraZeneca, UK
- Aventis Pharma, UK
- Bayer AG, Germany
- Eli Lilly & Company, USA, UK and several other European affiliates
- Glaxo SmithKline, UK
- Janssen Pharma (Johnson& Johnson), Belgium and USA
- Knoll BASF Pharma (Abbott), UK
- Novartis, Switzerland
- Pfizer, UK and USA
- Sankyo Pharma, Germany
- Takeda GmbH, Germany