| 1 A Pharma | 1 | |
| 23andMe | 0 | |
| 3M | 20 | |
| 4D Pharma | 0 | |
| 60 Degrees Pharmaceuticals | 1 | |
| 9 Meters Biopharma | 0 | |
| A.C.O.M. - Advanced Center Oncology | 3 | |
| A.H. Robins Company | 54 | |
| AACE Pharmaceuticals | 1 | |
| Aadi Bioscience | 1 | |
| AAIPharma | 6 | |
| Abbott Biotherapeutics | 55 | |
| AbbVie | 123 | |
| AbCellera Biologics | 0 | |
| Abeona Therapeutics | 0 | |
| Abgenix | 0 | |
| Abivax | 0 | |
| Able Laboratories | 38 | |
| Ablynx | 2 | |
| Abon Pharmaceuticals | 3 | |
| Acacia Pharma | 2 | |
| Acadia Pharmaceuticals | 2 | |
| Acasti Pharma | 0 | |
| Accentia Biopharmaceuticals | 0 | |
| Accord Healthcare | 193 | |
| Acella Pharmaceuticals | 16 | |
| AcelRx Pharmaceuticals | 0 | |
| Acelyrin | 0 | |
| Acer Therapeutics | 1 | |
| Aceragen | 0 | |
| Acerus Pharmaceuticals Corporation | 4 | |
| Achaogen | 0 | |
| ACI Healthcare | 12 | |
| ACIC Pharmaceuticals | 5 | |
| Aclaris Therapeutics | 1 | |
| ACME Laboratories | 4 | |
| Acorda Therapeutics | 2 | |
| ACRAF | 1 | |
| Acrotech Biopharma | 9 | |
| Actelion | 8 | |
| Actinium Pharmaceuticals | 0 | |
| Activbiotics | 0 | |
| Acumen Pharmaceuticals | 0 | |
| Acura Pharmaceuticals | 0 | |
| Acurx Pharmaceuticals | 0 | |
| Acusphere | 0 | |
| Adagene | 0 | |
| Adalvo | 1 | |
| Adamas Pharmaceuticals | 1 | |
| Adamis Pharmaceuticals | 2 | |
| Adams Respiratory Therapeutics | 0 | |
| Adapt Pharma Operations | 1 | |
| Adaptive Biotechnologies | 0 | |
| Adare Pharmaceuticals | 2 | |
| ADC Therapeutics | 1 | |
| Addex Therapeutics | 0 | |
| addmedica | 0 | |
| Aderis Pharmaceuticals | 0 | |
| Adhera Therapeutics | 2 | |
| Adicet Bio | 0 | |
| Adienne | 3 | |
| ADMA Biologics | 2 | |
| Advanced Accelerator Applications | 6 | |
| ADVANZ PHARMA | 1 | |
| Advaxis | 0 | |
| Adverum Biotechnologies | 0 | |
| Advicenne | 2 | |
| Aegerion Pharmaceuticals | 0 | |
| Aeglea Biotherapeutics | 0 | |
| Aeon Biopharma | 0 | |
| Aerie Pharmaceuticals | 0 | |
| Aet Pharma | 2 | |
| Aeterna Zentaris | 0 | |
| Afaxys | 1 | |
| Affimed | 0 | |
