| Cefic - European Chemical Industry Council |
| CITAC | Cooperation on International Traceability in Analytical Chemistry |
| ECS | Electrochemical Society |
| EuCheMS | European Association for Chemical and Molecular Sciences |
| ECTN | European Chemistry Thematic Network Association |
| ECIS | European Colloid and Interface Society |
| EFMC | European Federation for Medicinal Chemistry |
| European Federation for the Science and Technology of Lipids |
| EFCATS | European Federation of Catalysis Societies |
| EFCE | European Federation of Chemical Engineering |
| E-MRS | European Materials Research Society |
| EPMF | European Precious Metals Federation |
| FACS | Federation of Asian Chemical Societies |
| IAPWS | International Association for the Properties of Water and Steam |
| IACT | International Association of Chemical Thermodynamics |
| IAEAC | International Association of Environmental Analytical Chemistry |
| International Association of Nanotechnology |
| ICTAC | International Confederation for Thermal Analysis and Calorimetry |
| ICCA | International Council of Chemical Associations |
| IEPRS | International EPR(ESR) Society |
| IFCC | International Federation of Clinical Chemistry and Laboratory Medicine |
| IOA | International Ozone Association |
| IPCS | International Plasma Chemistry Society |
| IPA | International Platinum Group Metals Association |
| ISMRM | International Society for Magnetic Resonance in Medicine |
| IS3NA | International Society for Nucleosides, Nucleotides, and Nucleic Acids |
| ISPC | International Society for the Philosophy of Chemistry |
| ISCE | International Society of Chemical Ecology |
| ISE | International Society of Electrochemistry |
| ISHC | International Society of Heterocyclic Chemistry |
| ISMAR | International Society of Magnetic Resonance |
| ISGS | International Sol-Gel Society |
| IUVA | International Ultraviolet Association |
| IUCr | International Union of Crystallography |
| IUPAC | International Union of Pure and Applied Chemistry |
| IZA | International Zeolite Association |
| MGMS | Molecular Graphics and Modeling Society |
| SCI | Society of Chemical Industry |
| WATOC | World Association of Theoretical and Computational Chemists |
