By Pete Norman, Sky News Online
A British company bought by Twitter for a reported £25m has been shut down by the business regulator after it failed to file its accounts, Sky News has learned.
The official message of TweetDeck's demise
TweetDeck Ltd, which was bought by the California-based social media giant in 2011, was officially struck off the register by Companies House this morning.
The action comes after the wholly-owned British subsidiaries, TweetDeck and Twitter UK Ltd, failed to file accounts for 2011.
The account deadline was last September and both companies were subsequently penalised.
Although Twitter UK later filed its 2011 accounts, TweetDeck did not and the Cardiff-based Companies House moved to strike off the company in January, as first revealed by Sky News.
A notice confirming the action has now been published in the London Gazette, which is the Government's official journal of record, saying TweetDeck has been "dissolved".
A Companies House spokesman told Sky News: "We go through a strict compliance process to try and ensure companies file documentation in a timely manner.
"Unfortunately, in a small number of cases, matters proceeded to strike off, as in this case."
Twitter CEO Dick Costolo (l) and Alex Macgillivray
TweetDeck is used by so-called social media power users to integrate their online messaging activity.
Its functionality has now been incorporated within Twitter's main corporate structure, according to the San Francisco-based firm.
A Twitter spokesperson told Sky News: "TweetDeck the product continues to thrive as part of Twitter, but the old TweetDeck company has been dormant for some time, with no outstanding liabilities; hence our agreement with the move to dissolve it."
TweetDeck was controlled by two American directors, Twitter Inc CEO Dick Costolo and its general counsel Alex Macgillivray.
According to the business regulator, of the three million companies registered in the UK, 99.1% maintain up to date account filings.
Dissolution of dormant companies is normally initiated by the directors rather than it being imposed by the regulator.
In March the Tax Office investigated TweetDeck but later halted action
The Companies House spokesman told Sky News: "It is incumbent on all directors to ensure documentation is submitted appropriately and it is always disappointing when this is not the case.
"As well as being a legal requirement, those wishing to research and invest use the register as an information source, and for this reason it is unhelpful if business records are not up to date and in good order."
TweetDeck was founded by Sheffield-educated computer programmer Iain Dodsworth in 2008 and sold to Twitter two years ago in what was widely reported as a £25m deal.
The microblogging giant controls its UK operations through a Dublin-based parent firm, known as Twitter International Company.