Digital One is a leader in DAB digital radio. It launched in November 1999, and has held the only digital radio licence for national commercial radio in the UK ever since. It broadcasts a broad range of content including traffic data services and some of the UK's most profitable radio stations.

The company is wholly owned by Arqiva, one of the UK's biggest communications infrastructure companies which operate across broadcast, satellite and mobile communications markets. Digital One's head office is in central London alongside other Arqiva businesses.

Digital One is committed to the long-term promotion of digital radio in the UK and beyond. Together with the BBC and the big commercial radio groups, it is active in organisations including Digital Radio UK and WorldDMB (an international partnership of broadcasters, manufacturers and regulators).

In 2011 Digital One's licence was renewed for a further period which runs until November 2023.