Proficiency testing

As one of the first UKAS accredited providers of proficiency testing, we are among the longest established proficiency testing / EQA suppliers worldwide, active in the market since the early 1980s.

Global presence

Since then, we have grown to become the largest private sector provider of proficiency testing globally, providing solutions for the food, beverage, environmental, clinical, consumer safety, forensic and petroleum sectors through three hub locations in Bury, UK; Traverse City, Michigan, USA and Johannesburg, South Africa. Each of our proficiency testing hubs is accredited to ISO/IEC 17043 and has been in operation for over 20 years. We have recently added a fourth proficiency testing location in Nanjing, China.


Our bespoke, secure web-based tool for data reporting and analysis, PORTAL, is exclusively available to LGC proficiency testing scheme participants. It provides participants with full control of their LGC proficiency testing data twenty-four hours a day.

Additional services

Alongside our own proficiency testing schemes, we provide a full suite of proficiency testing outsourcing services to other providers, industry stakeholders and customers, including scheme design, sample preparation / distribution and report generation.