The Forschungszentrum Jülich (JUELICH) – a member of the Helmholtz Association – is one of the largest research centres in Europe. It pursues cutting-edge interdisciplinary research addressing the challenges facing society in the fields of health, energy and the environment, and information technologies. Within the Forschungszentrum, the Jülich Supercomputing Centre (JSC) is one of the three national supercomputing centres in Germany as part of the Gauss Centre for Supercomputing (GCS). Presently, JSC operates one of the first European systems of Petaflop class performance. JUELICH has more than 30 years expertise in providing supercomputer services to national and international user communities. It undertakes research and development in HPC architectures, performance analysis, HPC applications, Grid computing, networking, and project management. JUELICH successfully managed numerous national and European projects including the PRACE Preparatory Phase project. JUELICH is the Coordinator of the PRACE-1IP project and contribute to the evolution of the Research Infrastructure, dissemination, technical operations, petascaling, and future technologies. The success of the computers QPACE and JuRoPA demonstrates the competence of JSC in the field of computational sciences and system architecture technologies. JSC has established two joint co-operations with IBM Böblingen (Exascale Innovation Centre) and with Intel Braunschweig and ParTec GmbH (ExaCluster Laboratory) to develop new promising HPC architectures and prototypes to enter the Exascale era. With Scalasca, JSC is the world leader in scalable portable parallel performance analysis tools.