| AOAC | - | Association of Official Analytical Chemists |
| AQUACHECK | - | A proficiency testing scheme for water analysis |
| ASTM | - | American Society for Testing Materials |
| BAM | - | German Federal Institute for Materials Research and Testing. Reference Material Producer. |
| BIPM | - | Bureau International des Poids et Mesures. |
| BSI | - | British Standards Institution |
| CITAC | - | Co-operation on International Traceability in Analytical Chemistry |
| COMAR | - | Database of certified reference materials |
| DEFRA | - | Environment pages from Department for the Environment, Food and Rural Affairs |
| DTI | - | Department of Trade & Industry |
| eptis | - | A European database of Proficiency Testing Schemes |
| ERM | - | European Reference Materials (RM Producer) |
| FDA | - | Food and Drug Administration
Responsible for food and drug safety in the US. |
| FDA | - | Centre for Food Safety and Applied Nutrition
Food safety and nutrition information. |
| Food and Agriculture Organisation | - | The Food and Agriculture Organisation of the United Nations. |
| Food Standards Agency | - | Food Standards Agency |
| IAEA | - | Database of biological, food and environmental reference materials of natural origin. |
| ILAC | - | International Laboratory Accreditation Cooperation |
| IRMM | - | Institute for Reference Materials and Measurement. The metrology institute for the European Union and producers/suppliers of BCR reference materials |
| ISO | - | International Organization for Standardization |
| ISO-REMCO | - | International Organization for Standardization Reference Materials Committee |
| LGC | - | LGC Limited |
| LGC Promochem | - | Europe’s most comprehensive source of reference materials. Supplier of reference materials produced with funding from the VAM programme. |
| NIST | - | National Institute of Standards and Technology |
| NMS | - | National Measurement System |
| RSC | - | The Royal Society of Chemistry |
| SCI | - | The Society of Chemical Industry |
| UKAS | - | United Kingdom Accreditation Service |
| VIRM | - | Virtual Institute for Reference Materials. RM Database and resource for RM information. |