The contract, worth over 拢750,000, will involve TNS undertaking home and face-to-face research with 100,000 people a year, double the number used in previous National Tourist Board surveys.
The survey, which measures the volume and value of tourist trips in the UK, will give a vital indicator into the health of the UK tourism industry.
It will also help to shape future marketing and promotional campaigns and inform government poilcy on tourism issues.
Angus James, head of England research at Visit Britain, said: "TNS was selected, among other criteria, for its track record of consistently managing and delivering large projects of this scope."
Tom Costley, head of TNS Travel & Tourism, said: "This is an important win for TNS, which highlights the strength of the division and its ability to undertake large-scale market measurement surveys."
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