Agouron Institute

Amershan Healthcare (MediPhysics & US Biochem)

Becton, Dickinson and Company

Burroughs Wellcome

Ciba Vision

Dupont

GlaxoSmithKline (fka Glaxo Wellcome)

Gryphon Sciences

Merck

Mitsubishi

Q-Chem

Real Time Health, Inc.

Research Corp.

Scios, Inc.

Syntex (Roche Biosci)