• Synthetic Organic Chemical Manufacturers Association
  • European Federation for Medicinal Chemistry (EFMC)
  • MPDI - Molecular Diversity Preservation International (MDPI), a nonprofit and an independent international organization located in Switzerland, coordinates and provides supporting services of worldwide registration, deposit and distribution of molecular and biomolecular samples for chemistry journals, for chemistry and biochemistry professionals and for commercial and academic organizations.
  • American Chemical Society
  • The Canadian Society for Chemistry, Organic division
  • International Society of Heterocyclic Chemistry
  • International Union of Pure and Applied Chemistry (General Information and structure of the Organisation, News, Nomenclature of inorganic and organic chemistry; Standardisation of atomic weights; Standardisation of physical constants; Editing tables of properties of matter; Establishing a commission for the review of work; Standardisation of the formats of publications; Measures required to prevent repetition of the same papers).
  • International Organization for Chemical Sciences in Development (IOCD) - supporting chemistry in developing countries
  • Society of Chemical Industry aims to promote applications of chemistry and related sciences
  • German Chemical Society (Gesellschaft Deutscher Chemiker, GDCh)
  • WWW Chemistry Sites at Academic Institutions