1.
AlphaVax
1997
2.
Alpine Biosciences
2012
3.
Altavant Sciences
2018
4.
Altea Therapeutics
1998
5.
Alterity Therapeutics
1997
6.
Altor BioScience
2002
7.
AltrixBio
2019
8.
Alucent Medical
2014
9.
Alvos Therapeutic
2009
10.
ALX Oncology
2015
11.
Alzheimer's Drug Discovery Foundation
1998-01-01
12.
Alzheimer's Research & Therapy
13.
Alzprotect
2007
14.
AMAG Pharmaceuticals
1981
15.
Amal Therapeutics
16.
Amarantus BioSciences
2008
17.
Ambest Pharmaceutical (China)
18.
AMBICION
2015
19.
Ambit Biosciences
2000
20.
Ambrx
2003
21.
American Clinical Solutions
2008
22.
AmerisourceBergen Drug Corporation
1978
23.
Amersham Health
1997
24.
Amgen
1980
25.
Amgen Ventures
2004-01-01