The UK Cloud Computing Special Interest Group (Cloud SIG), is a group of active users, developers, researchers and providers doing interesting things in cloud who come together to identify and solve key issues in the adoption and use of clouds.

It formed after a number of people involved in the EPSRC/JISC funded Cloud Computing pilots met up to try and resolve some common problems that they had encountered. This led to a series of developer workshops which continue to run under the auspices of the SIG. Realising that there were other projects working in the same areas, and people encountering similar problems, the UK Cloud COmputing Special Interest Group has been set up to allow these issues to be discussed and addressed.