- AB Science
- Abacus Medicine
- Abacus Medicine A/S
- Abbott Arzneimittel GmbH
- AbbVie
- Abionyx Pharma
- ABX Advanced Biochemical Compounds
- Acadia Pharmaceuticals Inc
- Accord Healthcare France SAS
- Accord Healthcare Ltd
- Accord Healthcare SLU
- ACE Pharmaceuticals
- Acrotech Biopharma LLC
- ADS Pharma
- Advanced Accelerator Applications
- Advanced Biodesign
- Advanz Pharma France
- Advicenne
- Agenus Inc
- AGEPS
- Agios Pharmaceutical Inc
- Aguettant
- Aicuris
- Aimmune Therapeutics Ireland Limited
- Air Liquide Antilles Guyane
- Air Liquide Réunion
- Air Liquide Santé
- Air Products
- Air Products Industrie
- Air Products SAS
- Akcea Therapeutics Ireland Ltd
- Akorn Consumer Health
- Alcon
- Alept
- Alexion Pharma France
- Alfasigma France
- Alfasigma Schweiz
- ALK
- Allergan France
- Alliance Healthcare France
- Alliance Pharma France
- Alliance Pharmaceuticals Ltd
- Alloga France
- Almirall SAS
- Almus France
- Alnylam France SAS
- Alter
- Amdipharm Ltd
- Amdipharm Mercury Australia PTY Ltd
- Amgen
- Amgen Technology (Ireland) UC
- Amicus Therapeutics SAS
- Amomed Pharma
- Amring
- Angelini Pharma
- AOP Orphan Pharmaceuticals France
- Apotex Europe Ltd
- Argenx France
- Argos Zyklotron Betriebs-Gesmbh
- Arkopharma
- Arog Pharmaceuticals Inc
- Arrow Génériques
- Arvelle Therapeutics Netherlands BV
- Aspen France
- Assistance Publique-Hôpitaux de Paris
- Astellas Pharma Europe BV
- Astellas Pharma France
- AstraZeneca
- Atara Biotherapeutics INC
- Atnahs Pharma Netherlands BV
- Aton Pharma
- Atral SA
- Auxilium UK Ltd
- Avexis EU Limited