The Official Charts Company, also referred to as Official Charts (previously known as the Chart Information Network (CIN) and The Official UK Charts Company) is a British inter-professional organisation that compiles various “official” record charts in a number of European territories.
In the United Kingdom, their charts include ones for singles, albums and films, with the data compiled from a mixture of downloads, purchases (of physical media) and streaming. The OCC produces its charts by gathering and combining sales data from retailers through market researchers Kantar, and claims to cover 99% of the singles market and 95% of the album market, and aims to collect data from any retailer who sells more than 100 chart items per week.
The OCC is operated jointly by the British Phonographic Industry and the Entertainment Retailers Association (ERA) (formerly the British Association of Record Dealers (BARD)). Since 1994, CIN and then the OCC have compiled the official charts. Prior to this date, the charts were produced by a succession of market research companies, beginning with the British Market Research Bureau (BMRB) in 1969 and Gallup in 1983. Before the production of the “official” charts, various less comprehensive charts were produced, most notably by newspaper/magazine New Musical Express (NME) which began its chart in 1952; some of these older charts (including NME‘s earliest singles charts) are now part of the official OCC canon.