SIG No.1 - Macromolecular Crystallography

SIG No.2 - Charge, Spin and Momentum Density

SIG No.3 - Aperiodic Crystals

SIG No.4 - Electron Crystallography

SIG No.5 - Mineral and Inorganic Crystallography

SIG No.6 - Instrumentation and Experimental Techniques

SIG No.7 - Molecular Interaction and Recognition

SIG No.8 - Powder Diffraction

SIG No.9 - Crystallographic Computing

SIG No.10 - X-ray diffraction physics and optics

SIG No.11 - Crystallography under Extreme Conditions and Optics

SIG No.12 - Material Science

SIG No.13 - Molecular structure and chemical properties

GIG No.1 - Young Crystallographers