Active Biotech
Adcock Ingram
Aeterna Laboratories
Affymetrix
Ajinomoto
Akzo Nobel
Alcon
Allergan
Allergy Therapeutics
Allos Therapeutics
Altachem Pharma
Altertek Bio
American Biogenetic Sciences
American BioScience
American Home Products
Amgen
Andromaco
Andrx
Anesta
Angiogene
Angiotech
Annovis
Antex Biologics
Anthra Pharmaceuticals
Antisoma
Aphios
Ares-Serono
Argonex
Artemis
Asahi Chemical
Atairgin Technologies
AtheroGenics
Athersys
Atlantic Pharmaceuticals
AutoImmune
AvMax
Axonyx
Axys