Twitter has 10 million active UK users as its celebrates its first birthday

Twitter celebrates first UK birthday - now has 30 UK staffTwitter is celebrating its first birthday in the UK 12 months after it open its London office, which has gone from zero to 30 staff.

Twitter has marked its anniversay by giving an update on the number of active users and says there are now more than 10 million in the UK making British tweeters among the world’s most active.

That figure isn’t the total Twitter number of accounts opened in the UK, but the accounts that are actively tweeting.

The total number of UK Twitter accounts is much higher and was unofficially estimatedearlier this year to be around 24 million. That estimate placed the UK as the fourth biggest user of Twitter globally after the US, Japan and Brazil.

Active users count as people who have logged in to their account in the past 30 days.

Of the 10 million UK active users 80% of those are also active on mobile devices. The figure is significantly higher than the global average, which sits at 55%.

The high number of active UK users on mobile is a clear reflection not only of the widespread use of smartphones in the UK, but also of our growing “always on” attachment to Twitter where users will tweet from their phones while on the move or from the couch whilst watching TV.

UK advertisers on Twitter

Significantly, Twitter also gave an update on its bid to convert UK advertisers to Twitter.

It says more than 140 UK brands have advertised with Twitter since it launched its Promoted Products in September 2011.

Among those advertisers are Asda, Cadbury, Sky , O2, Ladbrokes, LoveFilm, Capital One, Electronic Arts, Sky, Sony, Vodafone and Channel 4.

C4 recently racked up a successful and innovative first with its #areyouseeingthis live Twitter ad for Prometheus.

According to Tony Wang, who heads up Twitter in London, UK brands are ‘leading the charge’ in the way they use Twitter’s ad products.

‘They are setting a lot of standards which are being benchmarked internally,’ he said, referring to campaigns by brands such as O2, Starbucks and Cadbury,” read the rest of his comments in Marketing.