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» Facts & Figures


ILAC’s international network of members consists of organisations from a diversity of global economies. These members include signatories to the ILAC Mutual Recognition Arrangement (MRA), Associates, Affiliates, Stakeholders and Regional Cooperation Bodies.


Since the formation of the ILAC MRA in 2000, the number of accreditation body members from around the world has more than doubled.

These accreditation body members comprise the ILAC MRA Signatories (Full Members), as well as Associate and Affiliate* members who are working towards achieving their ILAC MRA signatory status.

*The Affiliate category was discontinued on 31 December 2021


Almost 85,000 laboratories, almost 13,000 inspection bodies, over 600 proficiency testing providers and 250 reference material producers were accredited by the ILAC MRA Signatories in 2021.

In April 2020, the ILAC MRA was further extended to include the accreditation of reference material producers.

In May 2019, the ILAC MRA was extended to include the accreditation of proficiency testing providers.

In October 2012, the ILAC MRA was expanded to incorporate the accreditation of inspection bodies.

On the 31st of January 2001, the ILAC MRA was signed to include both calibration and testing laboratories


The current scope of the ILAC MRA includes the accreditation of calibration laboratories using ISO/IEC 17025, testing laboratories using ISO/IEC 17025, medical testing facilities using ISO 15189, inspection bodies using ISO/IEC 17020, proficiency testing providers using ISO/IEC 17043 and reference material producers using ISO 17034.