The United Kingdom is home to a widespread and diverse co-operative movement, with over 7,000 registered co-operatives which are owned by 17 million individual members and which contribute £34bn a year to the British economy. Modern co-operation started with the Rochdale Pioneers' shop in the northern English town of Rochdale in 1844, though the history of co-operation in the UK can be traced back to before 1800. The British co-operative movement is most commonly associated with The Co-operative brand (best known for its supermarket and Funeralcare brands) which has been adopted by several large consumers' co-operative societies; however, there are many thousands of registered co-operative businesses operating in the UK. Alongside these consumers' co-operatives, there exist many prominent agricultural co-operatives (621), co-operative housing providers (619), health and social care cooperatives (111), cooperative schools (834), retail co-operatives, co-operatively run community energy projects, football supporters' trusts, credit unions and worker-owned businesses.
Co-operatives UK is the central membership organisation for co-operative enterprise throughout the UK. This is a co-operative of co-operatives: a co-operative federation. Most kinds of co-operatives are eligible to join Co-operatives UK.
Though the history of the co-operative movement in the UK is often traced back to the Rochdale Pioneers of 1844, the history of co-operation can be traced back much further. The origins of modern co-operatives owe their beginnings not simply to the extreme poverty faced by many in the 18th and 19th centuries, but also to the rapid social changes of urbanisation, the rising food prices which resulted from the marketisation of the economy and from the lack of political representation for the working class during this period. These factors led to a number of social changes including an increased focus on mutual businesses (notably co-operatives) in public discourse during this time and also to events such as the Swing Riots of 1830. Early co-ops often focused on the provision of essential services (notably food) to members where the market was either unable to provide these services sufficiently or was considered unjust. Often the more successful co-ops were established around the trades which were experiencing the largest impact from the rapid industrialisation such as mining and weaving. This was likely due to the clearer direct benefits of membership and the solidarity of workers with a similar plight. The provision of food was a highly successful area for co-ops with many becoming involved in milling and baking bread. The Hull Anti-Mill Co-op, established in 1795 and which traded for a century, provides an example of such a successful society.