The Worldwide LHC Computing Grid (WLCG) project is a global collaboration linking grid infrastructures and computer centres worldwide.

It was launched in 2002 to provide global computing resource to store, distribute and analyse the 15 Petabytes (15 million Gigabytes) of data annually generated by the Large Hadron Collider (LHC) at CERN on the Franco-Swiss border.

The infrastructure built by integrating thousands of computers and storage systems in hundreds of data centres worldwide enables a collaborative computing environment on a scale never seen before.

WLCG serves a community of more than 8,000 physicists around the world with near real-time access to LHC data, and the power to process it.