Founded in 2003, LinkedIn boasts over 175 million members worldwide, including executives from every Fortune 500 company, who use it for business collaboration and networking.
Listed on the US stock market last year with a multi-billion dollar valuation, LinkedIn currently employs nearly 2,500 people worldwide and had revenues of $522 million last year.
It has today surpassed 10m members in Britain, showing strong growth after only passing 5m members in 2010.
Usage of the UK version of LinkedIn has particular hotspots in London, Birmingham, Reading, Edinburgh and Manchester.
There are 18,750 vets, 2,545 farmers and 50,496 teachers on LinkedIn UK, although the biggest groups are company directors, at 406,850, and 'owners', at 533,641.
The companies and organisations most represented on LinkedIn are the NHS, British Telecom, Royal Bank of Scotland, HSBC and IBM.
"Reaching 10 million members in the UK shows that skilled workers believe our community is vital to their careers," said Ariel Eckstein, LinkedIn's European managing director.
"Every day, our members are adding information to their profiles, sharing important views and insights, connecting to one another, building their networks and getting access to a world of potential contacts, business partners, investors, employers and employees."
LinkedIn has produced an infographic showcasing its UK history in numbers.
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