Northern Ireland has seen about 1m overseas visitors in the first half of 2017.
Gobbins, Fermanagh Lakeland, Causeway Coast and Titanic Belfast are some of the famous landmarks which will be promoted as a part of the campaign.
Over the next three days, the Northern Ireland companies will engage in thousands of meetings with British and international tour operators to negotiate and exchange contracts for 2018.
Almost £3bn’s worth of business was done at last year’s World Travel Market as the organiser estimated.
Niall Gibbons, chief executive of Tourism Ireland, said the large representation of NI companies at the World Travel Market was both welcome and essential in a highly competitive global marketplace.
“Tourism Ireland has been rolling out an extensive promotional programme throughout 2017, showcasing Northern Ireland around the world to prospective holidaymakers,” he said.