| Country/Region |
Name |
| Australia |
NMIA - National Measurement Institute of Australia |
| Canada |
NRC-INMS - Institute for National Measurement Standards |
| China |
NIM - National Institute of Metrology |
| France |
LNE - Laboratoire National de Metrologie et d'Essais |
| Germany |
PTB - Physikalisch-Technische Bundesanstalt |
| Hong Kong |
SCL - Standards and Calibration Laboratory |
| Indonesia |
Puslit KIM-LIPI - Research Center for Calibration, Instrumentation and Metrology – Indonesian Institute of Sciences |
| Italy |
INRIM - National Institute of Metrological Research |
| Korea |
KRISS - Korea Research Institute of Standards and Science |
| Korea |
KTL - Korea Testing Laboratory |
| Malaysia |
NMIM - National Metrology Institute of Malaysia |
| Malaysia |
SIRIM-SST - Standards and Industrial Research Institute of Malaysia – Standard Technology (SST) |
| Mongolia |
MASM - Mongolian Agency for Standardization and Metrology |
| Netherlands |
VSL - Van Swinden Laboratory Dutch Metrology Institute |
| New Zealand |
MSL - Measurement Standards Laboratory |
| Poland |
ILTSR - Institute of Low Temperature and Structure Research |
| Russia |
JIHT - Joint Institute for High Temperatures of the Russian Academy of Sciences |
| Singapore |
NMC/A*STAR - National Metrology Center/Agency for Science, Technology and Research |
| South Africa |
NMISA - National Metrology Institute of South Africa |
| Spain |
CEM - Centro Espanol de Metrologia |
| Taiwan |
ITRI - Industrial Technology Research Institute |
| Thailand |
NIMT - National Institute of Metrology |
| UK |
NPL - National Physical Laboratory |
| USA |
NIST - National Institute of Standards and Technology |
| Vietnam |
VMI/STAMEQ - Vietnam Metrology Institute, Directorate for Standards and Quality |
| Brunei |
MSL-BD - Measurement Standards Laboratory |
| Denmark |
DFM - Danish Fundamental Metrology |
| Colombia |
ISM - Instituto Nacional de Metrologia de Colombia |
| Belgium |
SMD - SPF ECONOMIE, PME, CLASSES MOYENNES ET ENERGIE |
| Brazil |
INMETRO - Instituto Nacional de Metrologia, Qualidade e Tecnologia |
| Slovakia |
SMU - Slovak Institute of Metrology |
