The OCC produces its charts by gathering and combining sales data from retailers through market researchers Millward Brown.
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The Welsh Singles and Album Chart served the same purpose in Wales.
American Broadcasting Company | Fox Broadcasting Company | Ford Motor Company | The Walt Disney Company | Royal Shakespeare Company | Hudson's Bay Company | East India Company | Dutch East India Company | McKinsey & Company | Billboard charts | ARIA Charts | H. J. Heinz Company | Company | Peninsular and Oriental Steam Navigation Company | company | Bad Company | production company | Three's Company | Shell Oil Company | Goodyear Tire and Rubber Company | Glenn L. Martin Company | The Coca-Cola Company | Southern Pacific Transportation Company | Pullman Company | Marconi Company | Canon (company) | Victor Talking Machine Company | Negro Ensemble Company | Little, Brown and Company | Firestone Tire and Rubber Company |
It is compiled weekly by the Official Charts Company (OCC), and each week's new number one is published online on the official websites of the OCC, BBC Radio 1 and MTV, and in the magazine Music Week.
He has also been the sole Music Consultant for the Guinness World Records book since 1998, and is the Official Charts Company Quizmaster.