By Daniel Hunter

A group of London-based tech firms have embarked on a week-long mission to the United States to showcase their digital and technology expertise and win new investment in the capital.

Their visit begins on the day it was revealed that technology firms in the capital have attracted more than $1 billion of investment in the first nine months of 2014.

Nineteen of London's fastest growing tech startups have joined 'The Great Enterprise Tech Expedition' on visits to New York, Chicago, and Boston, where they will meet with businesses from a broad range of industries.

'The Great Enterprise Tech Expedition' is one of the trade missions organised as part of the Mayor’s Export Programme, delivered in partnership with UK Trade & Investment, with the aim of providing the capital’s businesses with practical information and help to trade overseas.

The US is the world's largest tech market. The value of its cloud market alone has grown from $46bn in 2008 to more than $150bn in 2014.

The Mayor of London, Boris Johnson, said: “London’s innovative approach to the tech sector is the envy of start-ups the world over. We are a city packed with entrepreneurs who are experts in their field and my commitment to them is to provide whatever assistance I can to set them on the path towards international success. The opportunities that this whirlwind tour presents will convert into dollars for the companies and regeneration, jobs and growth back home in London."

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