| :: | American Association for Laboratory Accreditation (A2LA), USA |
| :: | American National Standards Institute (ANSI) |
| :: | American Society for Testing Materials (ASTM) |
| :: | AOAC International |
| :: | Asia Pacific Laboratory Accreditation Cooperation (APLAC) |
| :: | Asia-Pacific Economic Cooperation (APEC) |
| :: | British Standards Institution (BSI) |
| :: | Bureau of Indian Standards (BIS) |
| :: | COFRAC, France |
| :: | Co-Operation on International Traceability in Analytical Chemistry (CITAC) |
| :: | DAR, Germany |
| :: | Dutch Council for Accreditation (RvA) |
| :: | EURACHEM |
| :: | EUROLAB |
| :: | European Committee for Standardization (CEN) |
| :: | European Cooperation for Accreditation (EA) |
| :: | German Institute for Standardization (DIN) |
| :: | Hong Kong Accreditation Scheme (HKAS) |
| :: | InterAmerican Accreditation Cooperation (IAAC) |
| :: | International Accreditation New Zealand (IANZ) |
| :: | International Bureau of Weights and Measures (BIPM) |
| :: | International Electrotechnical Commission (IEC) |
| :: | International Laboratory Accreditation Co-operation (ILAC) |
| :: | International Organization for Standardization (ISO) |
| :: | International Organization of Legal Metrology (OIML) |
| :: | Japan National Laboratory Accreditation (JNLA) |
| :: | Joint accreditation system of Australia and New Zealand (JAS-ANZ) |
| :: | National Analytical Reference Laboratory, Australia (NARL) |
| :: | National Association for Proficiency Testing (NAPT) |
| :: | National Association of Testing Authorities, Australia (NATA) |
| :: | National Institute of Standards and Technology (NIST) |
| :: | National Voluntary Laboratory Accreditation Program (NVLAP) |
| :: | Organisation for Economic Co-operation and Development (OECD) |
| :: | Pacific Accreditation Cooperation (PAC) |
| :: | Quality Council of India (QCI) |
| :: | Singapore Accreditation Council (SAC-SINGLAS) |
| :: | Standards Australia |
| :: | Swedish Board for Accreditation and Conformity Assessment (SWEDAC) |
| :: | Swiss Accreditation Service (SAS) |
| :: | United Kingdom Accreditation Service (UKAS) |
| :: | World Trade Organisation (WTO) |
