Sky UK Limited (formerly British Sky Broadcasting Limited (BSkyB)), trading as Sky, is a British broadcaster and telecommunications company that provides television, broadband internet, fixed line and mobile telephone services to consumers and businesses in the United Kingdom. It is a subsidiary of Sky Group (currently owned by Comcast) and is headquartered at the Sky Studios in Isleworth.
Sky is a major media company and the largest British broadcaster by revenue. It operates the Sky News news media organisation, Sky Sports which is the largest sports TV broadcaster in the UK, and the Sky Studios film and TV production company. Sky is also the country's leading provider of pay-TV services (12.7 million customers as of the end of 2019) through its satellite TV platform Sky Q as well as the IPTV-based Sky Glass and Sky Stream products. Its flagship channels include Sky Showcase, Sky Max, Sky Witness, Sky Documentaries, Sky Atlantic, and Sky Cinema. Sky is also one of the "big four" internet service providers.