Steve Toon, PhD

President, Simcyp

How to Reach Me

+44 (0) 114 292 2322


Sheffield, United Kingdom

About Steve Toon, PhD


Dr Stephen Toon joined Simcyp as Executive Director in 2006 from ICON Clinical Research where he was Senior Vice President of Clinical Pharmacology. He moved into his current position within Certara in 2014.

A pharmacist by profession, he received his pharmacy degree (First Class) from the University of Bath and his PhD in pharmacokinetics from the University of Manchester. Following a two-year period at the University of Washington in Seattle, he returned to Manchester in 1983 to help found Medeval Limited, one of the first clinical pharmacology CROs within the UK. In 1998 he headed a venture capital (3i) backed MBO of Medeval from the University of Manchester and was a founder of Cyprotex Limited in the same year. Having been Chief Executive Officer of Medeval for 10 years, he became Senior Vice President, Clinical Pharmacology, of ICON plc. following the acquisition of Medeval by ICON in January 2003.

Toon’s scientific interests are in model-informed drug development and the molecular-structural and metabolic aspects of pharmacokinetics (especially as they relate to drug-drug interactions). He has published over 50 articles, abstracts and chapters in books, and has lectured widely on his areas of interest.