The Queen has been forced to cancel her visit to the offices of Yammer, which would have formed the basis of a tour of firms in the Tech City area, due to illness.
Her Majesty was meant to attend with the Duke of York but Buckingham Palace staff confirmed late on Tuesday that she would not attend. Her duties will now be solely carried out by the Duke of York.
Her Majesty had been set for a tour of the offices and a meeting with Yammer's founder and chief technology officer Adam Pisoni. The visit was intended to showcase the success and business growth in Tech City.
Despite the cancellation, the fact the visit was scheduled in the first place is a ringing endorsement for Yammer.
"The Queen and the Duke of York are visiting Tech City to meet and pay tribute to a selection of companies who have chosen Tech City as the place to imagine, start and grow their businesses," said Georg Ell, Yammer's European general manager (pictured), speaking to V3 earlier this week when the visit was still going ahead.
"We are very honoured to have been chosen - as a good embodiment of Tech City - to host the Queen and are looking forward to further growth and involvement in this community in the heart of Tech City."
The Queen was also set to visit a creative advertising firm, called Mother London, but this visit is also cancelled.
Yammer first set up its offices in east London in July 2011, in a move welcomed by London Mayor Boris Johnson. Yammer at that point was still a start-up and had just three employees in the UK.
Since the firm has been acquired by Microsoft and become part of the Office division, development has picked up pace.
Yammer said this February that it had surpassed seven million registered users, and that the number of its paying customers had increased by 165 percent in 2012.
In September last year Yammer moved to a building just off Old street, occupying three of its floors. The Duke of York opened the new offices.
Now the Yammer team has grown to nearly 100 employees in London, and told V3 recently about its plan to expand further, specifically its plans to recruit more engineers in the Java and mobile development space.
Yammer also attended a breakfast briefing with Prime Minister David Cameron in December when he announced £50m in funding to regenerate the Old Street roundabout.
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