The USNC/Cr works closely with the National Academy of Sciences (who is a hosting institution of the USNC/Cr and the U.S. adhering body to the IUCr), the International Union of Crystallography, and the American Crystallographic Association.

We also collaborate with other societies: The Cambridge Crystallographic Data Centre, Microscopy Society of America, ICDD – International Centre for Diffraction Data, Protein Data Bank. Their representatives hold ex-officio non-voting positions on our committee.