American Association for Crystal Growth (AACG)
American Crystallographic Association (ACA)
American Chemical Society (ACS)
American Geophysical Union (AGU)
American Institute of Physics (AIP)
American Meteorological Society (AMS)
American Physical Society (APS)
European Crystallographic Association (ECA)
Microscopy Society of America (MSA)
Research Collaboratory for Structural Bioinformatics (RCSB)
Cambridge Crystallographic Data Centre (CCDC)