O2 – the UK’s second largest mobile telecoms provider

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The trading name of Telefonica in the UK, O2 is one of the nation’s biggest mobile telecommunications providers, pipped to the post only by EE – a conglomeration of multiple rivals.

Although they also offer financial services under the name O2 Money – and previously had landline and broadband companies before selling those operations to Sky – the company remains almost exclusively linked with being a mobile network provider, with an estimated 16.3 million customers currently using the business.


Competing primarily with Vodafone, Virgin Media and EE (the joint venture between Orange and T-Mobile) for custom in the UK, O2 offer a fairly standard range of tariffs for consumers.

Although Pay As You Go (PAYG) was popular when mobile phone first came into the mainstream at the turn of the millennium, the increased mobile data usage that has come with smartphones and the advent of 3G and 4G connections has seen many switch over to contracted, pay monthly packages – and it’s from this that O2 draw the bulk of its business. However, among young people particularly, PAYG remains relatively popular despite a perceived lack of value and the need for constant top-ups for heavy users.

Away from mobile phones, O2 have also become renowned as supporters of live music and events through sponsorship of key venues across the UK. The Millennium Dome had become somewhat of a white elephant for the government before it was transformed into one of the country’s leading concert locations when it was rebranded as The O2.

O2 store front in Altrincham

The company also sponsors a host of venues around the country – and they use these links with O2 Academy sites in order to offer advanced ticket sales to customers as well as other advantages using their O2 Priority Moments brand.