1. Bristol-Myers Squibb, Glaxo Wellcome (now GlaxoSmithKline), Merck, and F. Hoffmann-La Roche. Later, Abbott and Pfizer also joined the initiative;The companies are Boehringer Ingelheim
2. New Public/Private Sector Effort Initiated to Accelerate Access to HIV/AIDS Care and Treatment in Developing Countries;Joint United Nations Programme on HIV/AIDS (UNAIDS),2000