| AOAC | - | Association of Official Analytical Chemists |
| AQUACHECK | - | A proficiency testing scheme for water analysis |
| BAM | - | German Federal Institute for Materials Research and Testing. Reference Material Producer. |
| BIPM | - | Bureau International des Poids et Mesures. |
| BSI | - | British Standards Institution |
| Chemical and Matrix RM Producers in Europe | - | A new searchable database developed as part of the VAM programme by the Jenks Partnership. |
| CITAC | - | Co-operation on International Traceability in Analytical Chemistry |
| COMAR | - | Database of certified reference materials |
| Contaminated Land | - | A site providing information on contaminated land issues in the UK |
| CONTEST | - | Contaminated Land Proficiency Testing Scheme, operated by LGC |
| DEFRA | - | Environment pages from Department for the Environment, Food and Rural Affairs |
| DTI | - | Department of Trade & Industry |
| ENDS | - | Environmental Data Services |
| enviro-source | - | Information on environmental issues |
| Environment Agency | - | The UK Government agency for environmental enforcement for England and Wales. |
| EPA | - | US Environmental Protection Agency |
| eptis | - | A European database of Proficiency Testing Schemes |
| ERM | - | European Reference Materials (RM Producer) |
| EURACHEM | - | European network of analytical chemistry laboratories |
| 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. |
| MCERTS | - | Environment Agency’s MCERTS scheme for environmental testing |
| NIST | - | National Institute of Standards and Technology |
| NMS | - | National Measurement System |
| RSC | - | The Royal Society of Chemistry |
| SCI | - | The Society of Chemical Industry |
| SEPA | - | Scottish Environment Protection Agency |
| UKAS | - | United Kingdom Accreditation Service |
| VIRM | - | Virtual Institute for Reference Materials. RM Database and resource for RM information. |