The organizing committee is delighted to invite you to CCGrid2013, the 13th IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing, to be held in Delft, the Netherlands, which a historic, picturesque city that is less than one hour away from Amsterdam-Schiphol airport. CCGrid is a successful series of conferences that serves as the major international forum for presenting and sharing recent research results and technological developments in the fields of Cluster, Cloud and Grid computing. The CCGrid symposium, which is sponsored by the IEEE Computer Society Technical Committee on Scalable Computing (TCSC) and the ACM, reaches out to both researchers and practioners, and to both academia and industry. The conference features keynotes, technical presentations, posters, workshops, tutorials, as well as the SCALE challenge featuring live demonstrations. CCGrid has traveled the world over, and will this year return to Europe.