The Multiple Sclerosis Society (MS Society) is the UK's largest charity for people affected by multiple sclerosis (MS). Based in London, it has offices and local groups in England, Northern Ireland, Scotland and Wales. It gained charitable company status in 2010. The organisation funds research, campaigns for social and political change and provides services that help people with multiple sclerosis and their families. It also compiles the only report of its kind on prevalence and living situations for people with MS across the UK.