The International Passenger Survey (IPS) revealed that London's business tourism has risen 18% in the third quarter of 2010, compared to the same time in 2009 with 656,000 visitors.
London's overall Q3 tourism figures of 4.24m, which also include family and study tourism, were comparable to 2007's pre-recession levels.
The UK's overall business tourism growth was more sober, with 2010's Q3 figures registering 1,664,000 visitors, compared to 1,608,000 travellers during the same period in 2009 - a 3% rise.
Mayor of London Boris Johnson said: "It has been a challenging year for tourism, but the latest visitor numbers demonstrate the strength of what our city has to offer international as well as domestic travellers.
"This is welcome news as we countdown to 2012, and we will continue to work hard to ensure London is at the top of its game for visitors in what will be a momentous year.‘
Visit London chief executive Sally Chatterjee added: ‘London maintains its upward momentum, particularly in the business sector. We look forward to continuing this trend in 2011, with the Royal Wedding providing a fantastic opportunity to showcase this great city to a global audience."
Q4 visitor numbers are yet to be released for the UK, but initial figures for the UK overall have shown improvements during October and November.