Horse racing organisations in Great Britain

Tattersalls (formerly '''Tattersall's''') is the main auctioneer of race horses in the United Kingdom and Ireland.

Timeform is a sports data and content provider located in Halifax, West Yorkshire, England. Founded in 1948, it provides systematic information on form to punters and others involved in the horse racing industry. The company was purchased by the sports betting exchange Betfair in December 2006. Since 2 February 2016, it has been owned by Flutter Entertainment.