They manage and maintain a distributed computing grid across the UK with the primary aim of providing resources to particle physicists working on the Large Hadron Collider (LHC) experiments at CERN.

The collaboration oversees a major computing facility called the Tier1 at the Rutherford Appleton Laboratory (RAL) along with the four Tier 2 organisations[2] of ScotGrid, NorthGrid, SouthGrid and LondonGrid (formerly LT2).

The drive behind these projects was to provide researchers working on the LHC experiments with suitable computing resources[5] and to extend the use of the technology to other communities.

[9] GridPP is in its fourth phase (2011–2014) having received more funding from the Science and Technology Facilities Council (STFC) to support the LHC experiments and other users.

The entire environment is monitored, maintained and developed by dedicated teams at each site, to ensure a fully operational system is available to the end user communities.