CCP9 is the Collaborative Computational Project for the Study of the Electronic Structure of Condensed Matter.

The field includes the study of metals, semiconductors, magnets, and superconductors from microscopic quantum mechanical calculations. The activities of CCP9 encompass such highly topical areas as magneto-electronics (GMR, CMR, spin-transistors), photonics, nano-technology, high-temperature superconductors and magnetocalorics.

CCP9 provides a network which connects UK research groups in electronic structure, facilitates UK participation in the larger European Psi-k Network and supports a number of cutting edge computational codes. The chairman of CCP9 is Prof. Stewart Clark, University of Durham.