The Bioterrorism Security Assessment Alliance, or B.S.A.A. for short, is an organization founded by the Global Pharmaceutical Consortium at the request of the U.S. Government. Officially backed by the United Nations, their main purpose is to combat, prevent, and exterminate bio-terrorism.

One of their duties is to track down B.O.W.s and other viral weaponry developed by Umbrella that is being illegally sold on the black market to various bio-terrorists.

The B.S.A.A. have advanced technology and a number of skilled personnel in their ranks. There are branches stationed around the world, including Africa, Europe, and America.

Members of the B.S.A.A. receive special training to combat B.O.W.s and the infected, which sets them apart from the regular military. The B.S.A.A. headquarters are located in the United Kingdom.