Since 2004 DESY operates a Grid infrastructure and has participated in national and international Grid projects such as EGEE (2004-2010), D-GRID(2005-2009), and EGI / NGI-DE (since 2010). In 2006 DESY became a Tier-2 centre for ATLAS, CMS, and LHCb as part of the Worldwide LHC Computing Grid (WLCG). In the context of the Physics at the Terascale project DESY operates the National Analysis Facility (NAF) which complements the Grid with interactive computing resources.
More information is available at DESY Grid Home