Our Story

Professors Johnston and Holt launched a global External Quality Assurance (EQA) Scheme for immunosuppressants – the gold standard of reference for laboratories worldwide.

Founding professors established an analytical laboratory offering toxicology services – later renamed Analytical Services International (ASI) – at St George’s Medical School.

Became a member of the MHRA’s Good Laboratory Practice compliance programme to support an increasing workload.

Became a member of the MHRA’s Good Clinical Practice compliance programme.

Pioneered the use of advanced mass-spectrometry for forensic toxicology analysis

Commercial forensic toxicology service for Coroners and police established.

Became an international reference centre for clinical problems associated with substandard and falsified medicines.

ASI incorporated as a private limited company.

Appointed to the expert panel on drugs driving for the UK Department for Transport.

Appointed to the Expert Advisory Group for the Pharmacy & Poisons Board for Hong Kong.

Achieved ISO 17025 accreditation for forensic toxicology service.

EQA scheme sold and company streamlined to focus on bioanalysis and toxicology.

Instrumentation upgraded to include high resolution mass spectrometry.

Launched high throughput therapeutic drug monitoring services with results delivered via a dedicated and encrypted microsite for clinicians.