PSDI 1 - 1993 - Zeneca, United Kingdom
PSDI 2 - 1994 - SmithKline Beecham, United Kingdom
PSDI 3 - 1995 - GlaxoWellcome, United Kingdom
PSDI 4 - 1996 - Pfizer Sandwich, United Kingdom
PSDI 5 - 1997 - Zeneca, United Kingdom
PSDI 6 - 1998 - Roche Welwyn, United Kingdom
PSDI 7 - 1999 - SmithKline Beecham, United Kingdom
PSDI 8 - 2000 - Aventis, France
PSDI 9 - 2001 - GlaxoSmithKline, United Kingdom
PSDI 10 - 2002 - AstraZeneca, United Kingdom
PSDI 11 - 2003 - Medivir, Sweden
PSDI 12 - 2004 - Pfizer, United Kingdom
PSDI 13 - 2005 - Astex, United Kingdom
PSDI 14 - 2006 - Novartis, Italy
PSDI 15 - 2007 - ESRF, France
PSDI 16 - 2008 - GlaxoSmithKline, United Kingdom
PSDI 17 - 2009 - Roche, Basel, Switzerland
PSDI 19 - 2011 - AstraZeneca, Mölndal, Sweden