The show, which is Imex's first international brand extension, will take place from 11-13 October 2011 at the Sands Expo Convention Center in the Venetian/Palazzo Hotel, Las Vegas.
Imex America, which was announced at a press conference in Las Vegas, is expected to attract thousands of visitors.
The announcement came less than a month after Reed Travel Exhibitions revealed plans to launch an American version of EIBTM. The American Incentive Business Travel and Meetings exhibition (AIBTM) is due to take place in Baltimore in June 2011.
Imex chairman Ray Bloom said: "Imex America will deliver the largest-scale hosted buyer programme in North America. For the inaugural show in 2011, we are forecasting 1,500 hosted buyers. We will also conduct large-scale visitor marketing campaigns to attract several thousand more key decision-makers from across the country."
The show is being supported by associations including Site, which will hold its 2011 conference immediately afterwards, as well as the ICCA and Imex's long-term strategic partner, MPI.
Imex's flagship Frankfurt show will be held in May 2010 and dates are in place for another three years after that.